EP1397442A1 - Pulverlacke, verfahren zu ihrer herstellung und ihre verwendung - Google Patents
Pulverlacke, verfahren zu ihrer herstellung und ihre verwendungInfo
- Publication number
- EP1397442A1 EP1397442A1 EP02740647A EP02740647A EP1397442A1 EP 1397442 A1 EP1397442 A1 EP 1397442A1 EP 02740647 A EP02740647 A EP 02740647A EP 02740647 A EP02740647 A EP 02740647A EP 1397442 A1 EP1397442 A1 EP 1397442A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- powder coatings
- coatings according
- liquid
- radicals
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000843 powder Substances 0.000 title claims abstract description 136
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000003973 paint Substances 0.000 title abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 152
- 239000002245 particle Substances 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- 239000012736 aqueous medium Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000000839 emulsion Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- -1 arylcycloalkyl radicals Chemical class 0.000 claims description 96
- 238000000034 method Methods 0.000 claims description 76
- 239000000049 pigment Substances 0.000 claims description 74
- 239000000178 monomer Substances 0.000 claims description 60
- 239000011230 binding agent Substances 0.000 claims description 58
- 230000008569 process Effects 0.000 claims description 51
- 239000003995 emulsifying agent Substances 0.000 claims description 42
- 230000005855 radiation Effects 0.000 claims description 36
- 229920001577 copolymer Polymers 0.000 claims description 27
- 239000000155 melt Substances 0.000 claims description 20
- 239000000654 additive Substances 0.000 claims description 18
- 239000003431 cross linking reagent Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 17
- 150000003254 radicals Chemical class 0.000 claims description 17
- 238000007334 copolymerization reaction Methods 0.000 claims description 13
- 125000003118 aryl group Chemical group 0.000 claims description 12
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 11
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 11
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 9
- 239000000693 micelle Substances 0.000 claims description 9
- 238000010422 painting Methods 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 6
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 6
- 125000005119 alkyl cycloalkyl group Chemical group 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 125000001316 cycloalkyl alkyl group Chemical group 0.000 claims description 6
- 239000013466 adhesive and sealant Substances 0.000 claims description 5
- 150000005840 aryl radicals Chemical class 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 125000004367 cycloalkylaryl group Chemical group 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000004414 alkyl thio group Chemical group 0.000 claims description 2
- 125000005110 aryl thio group Chemical group 0.000 claims description 2
- 125000004104 aryloxy group Chemical group 0.000 claims description 2
- 125000004429 atom Chemical group 0.000 claims description 2
- 238000004108 freeze drying Methods 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 150000002825 nitriles Chemical class 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 238000001694 spray drying Methods 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims 2
- 125000005366 cycloalkylthio group Chemical group 0.000 claims 1
- 239000000565 sealant Substances 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000007858 starting material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 22
- 238000004132 cross linking Methods 0.000 description 21
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 20
- 125000000524 functional group Chemical group 0.000 description 20
- 229920005989 resin Polymers 0.000 description 19
- 239000002253 acid Substances 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 18
- 239000010410 layer Substances 0.000 description 18
- 239000011347 resin Substances 0.000 description 18
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 16
- 239000000047 product Substances 0.000 description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 14
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 14
- 239000003999 initiator Substances 0.000 description 14
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 13
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000000295 complement effect Effects 0.000 description 12
- 239000012071 phase Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 10
- 239000000975 dye Substances 0.000 description 10
- 238000004945 emulsification Methods 0.000 description 10
- WROUWQQRXUBECT-UHFFFAOYSA-N 2-ethylacrylic acid Chemical compound CCC(=C)C(O)=O WROUWQQRXUBECT-UHFFFAOYSA-N 0.000 description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 9
- 239000012790 adhesive layer Substances 0.000 description 9
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 9
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 9
- 229920002635 polyurethane Polymers 0.000 description 9
- 239000004814 polyurethane Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 8
- 230000008901 benefit Effects 0.000 description 8
- 239000007795 chemical reaction product Substances 0.000 description 8
- 238000009826 distribution Methods 0.000 description 8
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 8
- 239000011976 maleic acid Substances 0.000 description 8
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 8
- 238000006116 polymerization reaction Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 150000002148 esters Chemical class 0.000 description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 7
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 239000001530 fumaric acid Substances 0.000 description 6
- 239000002105 nanoparticle Substances 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 229920005862 polyol Polymers 0.000 description 6
- 150000003077 polyols Chemical class 0.000 description 6
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 6
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 6
- 239000003981 vehicle Substances 0.000 description 6
- 229920001567 vinyl ester resin Polymers 0.000 description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 5
- 239000003085 diluting agent Substances 0.000 description 5
- 125000003700 epoxy group Chemical group 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 235000013980 iron oxide Nutrition 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 150000003460 sulfonic acids Chemical class 0.000 description 5
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 4
- IZSHZLKNFQAAKX-UHFFFAOYSA-N 5-cyclopenta-2,4-dien-1-ylcyclopenta-1,3-diene Chemical group C1=CC=CC1C1C=CC=C1 IZSHZLKNFQAAKX-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 4
- 229920000180 alkyd Polymers 0.000 description 4
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 239000012948 isocyanate Substances 0.000 description 4
- 150000002513 isocyanates Chemical class 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 4
- 150000002989 phenols Chemical class 0.000 description 4
- 238000006068 polycondensation reaction Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical group C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 4
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical compound NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 4
- 239000002966 varnish Substances 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical class [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- CGGMCNLKDXNMLH-UHFFFAOYSA-N ctk4f7189 Chemical compound C1C2CCC1C1C2CC(CO)C1CO CGGMCNLKDXNMLH-UHFFFAOYSA-N 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- HNMCSUXJLGGQFO-UHFFFAOYSA-N hexaaluminum;hexasodium;tetrathietane;hexasilicate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].S1SSS1.S1SSS1.[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] HNMCSUXJLGGQFO-UHFFFAOYSA-N 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 125000003518 norbornenyl group Chemical group C12(C=CC(CC1)C2)* 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- XUDBVJCTLZTSDC-UHFFFAOYSA-N 2-ethenylbenzoic acid Chemical compound OC(=O)C1=CC=CC=C1C=C XUDBVJCTLZTSDC-UHFFFAOYSA-N 0.000 description 2
- LZDXRPVSAKWYDH-UHFFFAOYSA-N 2-ethyl-2-(prop-2-enoxymethyl)propane-1,3-diol Chemical compound CCC(CO)(CO)COCC=C LZDXRPVSAKWYDH-UHFFFAOYSA-N 0.000 description 2
- IPNCJMYEZCKXIL-UHFFFAOYSA-N 2-hydroxybutan-2-yl prop-2-enoate Chemical compound CCC(C)(O)OC(=O)C=C IPNCJMYEZCKXIL-UHFFFAOYSA-N 0.000 description 2
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 2
- MPMIVPONOUTYPT-UHFFFAOYSA-N 2-methyliminoethyl prop-2-enoate Chemical compound CN=CCOC(=O)C=C MPMIVPONOUTYPT-UHFFFAOYSA-N 0.000 description 2
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- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical compound C=CCOCC=C ATVJXMYDOSMEPO-UHFFFAOYSA-N 0.000 description 2
- CYUZOYPRAQASLN-UHFFFAOYSA-N 3-prop-2-enoyloxypropanoic acid Chemical compound OC(=O)CCOC(=O)C=C CYUZOYPRAQASLN-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- NDWUBGAGUCISDV-UHFFFAOYSA-N 4-hydroxybutyl prop-2-enoate Chemical compound OCCCCOC(=O)C=C NDWUBGAGUCISDV-UHFFFAOYSA-N 0.000 description 2
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- 239000004971 Cross linker Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
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- 240000004658 Medicago sativa Species 0.000 description 2
- 235000010624 Medicago sativa Nutrition 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000002015 acyclic group Chemical group 0.000 description 2
- 239000002318 adhesion promoter Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
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- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 1
- YULMNMJFAZWLLN-UHFFFAOYSA-N methylenecyclohexane Chemical compound C=C1CCCCC1 YULMNMJFAZWLLN-UHFFFAOYSA-N 0.000 description 1
- WPHGSKGZRAQSGP-UHFFFAOYSA-N methylenecyclohexane Natural products C1CCCC2CC21 WPHGSKGZRAQSGP-UHFFFAOYSA-N 0.000 description 1
- XLSZMDLNRCVEIJ-UHFFFAOYSA-N methylimidazole Natural products CC1=CNC=N1 XLSZMDLNRCVEIJ-UHFFFAOYSA-N 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- FTWUXYZHDFCGSV-UHFFFAOYSA-N n,n'-diphenyloxamide Chemical class C=1C=CC=CC=1NC(=O)C(=O)NC1=CC=CC=C1 FTWUXYZHDFCGSV-UHFFFAOYSA-N 0.000 description 1
- OKRNLSUTBJUVKA-UHFFFAOYSA-N n,n,n',n'-Tetrakis(2-hydroxyethyl)adipamide Chemical compound OCCN(CCO)C(=O)CCCCC(=O)N(CCO)CCO OKRNLSUTBJUVKA-UHFFFAOYSA-N 0.000 description 1
- UUCAVBDCVCFNIN-UHFFFAOYSA-N n,n,n',n'-tetrakis(2-hydroxypropyl)hexanediamide Chemical compound CC(O)CN(CC(C)O)C(=O)CCCCC(=O)N(CC(C)O)CC(C)O UUCAVBDCVCFNIN-UHFFFAOYSA-N 0.000 description 1
- DPLUMPJQXVYXBH-UHFFFAOYSA-N n,n-diethyl-2-phenylethenamine Chemical compound CCN(CC)C=CC1=CC=CC=C1 DPLUMPJQXVYXBH-UHFFFAOYSA-N 0.000 description 1
- UTKONZMCFKGKAR-UHFFFAOYSA-N n,n-diethyl-2-phenylprop-1-en-1-amine Chemical compound CCN(CC)C=C(C)C1=CC=CC=C1 UTKONZMCFKGKAR-UHFFFAOYSA-N 0.000 description 1
- OFESGEKAXKKFQT-UHFFFAOYSA-N n-ethenyl-n-methylformamide Chemical compound C=CN(C)C=O OFESGEKAXKKFQT-UHFFFAOYSA-N 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- OTLDLKLSNZMTTA-UHFFFAOYSA-N octahydro-1h-4,7-methanoindene-1,5-diyldimethanol Chemical group C1C2C3C(CO)CCC3C1C(CO)C2 OTLDLKLSNZMTTA-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002924 oxiranes Chemical group 0.000 description 1
- UJRBOEBOIXOEQK-UHFFFAOYSA-N oxo(oxochromiooxy)chromium hydrate Chemical compound O.O=[Cr]O[Cr]=O UJRBOEBOIXOEQK-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- HVAMZGADVCBITI-UHFFFAOYSA-M pent-4-enoate Chemical compound [O-]C(=O)CCC=C HVAMZGADVCBITI-UHFFFAOYSA-M 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- DGBWPZSGHAXYGK-UHFFFAOYSA-N perinone Chemical compound C12=NC3=CC=CC=C3N2C(=O)C2=CC=C3C4=C2C1=CC=C4C(=O)N1C2=CC=CC=C2N=C13 DGBWPZSGHAXYGK-UHFFFAOYSA-N 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920001290 polyvinyl ester Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- MOVRCMBPGBESLI-UHFFFAOYSA-N prop-2-enoyloxysilicon Chemical compound [Si]OC(=O)C=C MOVRCMBPGBESLI-UHFFFAOYSA-N 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- FYNROBRQIVCIQF-UHFFFAOYSA-N pyrrolo[3,2-b]pyrrole-5,6-dione Chemical compound C1=CN=C2C(=O)C(=O)N=C21 FYNROBRQIVCIQF-UHFFFAOYSA-N 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- RKHXQBLJXBGEKF-UHFFFAOYSA-M tetrabutylphosphanium;bromide Chemical compound [Br-].CCCC[P+](CCCC)(CCCC)CCCC RKHXQBLJXBGEKF-UHFFFAOYSA-M 0.000 description 1
- CCIYPTIBRAUPLQ-UHFFFAOYSA-M tetrabutylphosphanium;iodide Chemical compound [I-].CCCC[P+](CCCC)(CCCC)CCCC CCIYPTIBRAUPLQ-UHFFFAOYSA-M 0.000 description 1
- 239000004753 textile Chemical class 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical compound [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- YAQCYZLLBMLGOB-UHFFFAOYSA-N tricyclo[5.2.1.02,6]dec-3-ylmethanol Chemical compound C1CC2C3C(CO)CCC3C1C2 YAQCYZLLBMLGOB-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Chemical class 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- UQMZPFKLYHOJDL-UHFFFAOYSA-N zinc;cadmium(2+);disulfide Chemical compound [S-2].[S-2].[Zn+2].[Cd+2] UQMZPFKLYHOJDL-UHFFFAOYSA-N 0.000 description 1
- CHJMFFKHPHCQIJ-UHFFFAOYSA-L zinc;octanoate Chemical compound [Zn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O CHJMFFKHPHCQIJ-UHFFFAOYSA-L 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/16—Powdering or granulating by coagulating dispersions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
Definitions
- the present invention relates to new powder coatings which can be prepared by emulsifying liquid components.
- the present invention also relates to a method for producing new powder coatings by emulsifying liquid components.
- the present invention relates to the use of the new powder coatings as coating materials, adhesives and sealants for painting, gluing and sealing motor vehicle bodies and parts thereof, motor vehicles indoors and outdoors, buildings indoors and outdoors, doors, windows and furniture and for painting, gluing and sealing in the context of industrial painting, especially of small parts, coils, containers, packaging, electrical components and white goods.
- Powder coatings in the form of aqueous suspensions which are essentially free from organic solvents and can be processed using liquid coating technologies, and processes for their production by melt emulsification are known from German patent application DE 196 52 813 A1.
- the binders, the crosslinking agents and, if appropriate, further additives or additives are fed as viscous resin melts into the dispersing units and are finely dispersed there in the liquid phase.
- the constituents can also be mixed homogeneously with one another in the liquid state before they are dispersed in the dispersing unit and then finely dispersed in the liquid phase in a second step.
- the resulting emulsion is then converted into a suspension with solid, finely divided particles by cooling.
- the isolation of the dispersed or suspended powder coating particles is not apparent from the German patent application.
- short-chain amphiphilic polyacrylates which are prepared from acrylic acid, ethylhexyl acrylate, hydroxyethyl acrylate and an anionic comonomer in a lyotropic phase by transfer polymerization can be used as stabilizers, dispersants or emulsifiers.
- the surface tension of aqueous solutions of the emulsifiers at the critical micelle concentration (KMK) is not specified.
- Powder slurries which are produced by melt emulsification, are also described in the unpublished German patent applications DE 100 06 673.9 and DE 100 18 581.9.
- the resulting dispersed powder coating particles are, however, not isolated and used as powder coatings.
- Nonionic emulsifiers such as alkoxylated alkanols and polyols, phenols and alkylphenols or anionic emulsifiers such as alkali metal salts or ammonium salts of alkane carboxylic acids, alkane sulfonic acids, and sulfonic acids of alkoxylated alkanols and polyols, phenols and alkylphenols are used as emulsifiers.
- the surface tension of aqueous solutions of the emulsifiers at the critical micelle concentration (KMK) is not specified.
- emulsifiers are used in the process.
- a aqueous phase polyethylene glycol or polyvinyl alcohol is used.
- anchor component which links the emulsifiers to the melt by physical adsorption or chemical reaction.
- suitable anchor components are polar (meth) acrylate copolymers or the corresponding groups.
- the surface tension of aqueous solutions of the emulsifiers at the critical micelle concentration (KMK) is not specified.
- a disadvantage of this known process is that the temperatures and the residence times in the extruder must be set precisely in order to avoid premature crosslinking of binders and crosslinking agents.
- Ionic and non-ionic emulsifiers are used.
- the in-situ reaction products of the olefin copolymers containing carboxyl groups used in the process with ammonium hydroxide, triethanolamine, morpholine and dimethylethanolamine are used as ionic emulsifiers.
- Preferred nonionic emulsifiers are alkylphenol thioxylates and ethylene oxide-propylene glycol copolymers.
- the surface tension however, aqueous solutions of the emulsifiers at the critical micelle formation concentration (KMK) are not specified.
- the starting products are melted on an extruder and mixed with one another.
- the melt is then introduced into an autoclave and emulsified therein.
- the emulsions of the molten particles are then stirred under pressure and at temperatures above their melting point to make the particles spherical.
- the international patent application requires at least 30 seconds.
- a disadvantage of this known method is that even with slight changes in the process conditions, undesirable agglomeration of the molten particles can occur during the comparatively long treatment time.
- the known processes described above for producing powder coatings by melt emulsification also have the disadvantage that the extruders used as mixing units have a comparatively low efficiency, so that a comparatively high energy input is necessary in order to produce a homogeneous melt. Furthermore, the emulsifiers used can either only the initially formed emulsified molten particles or those after the emulsion has cooled resulting suspended solid particles but not both sufficiently stabilize them at the same time. In the known processes, there is therefore the risk that they will react adversely to slight variations in the process conditions and will not provide powder coatings that meet specifications.
- a further process for the production of powder coatings by melt emulsification is known from international patent application WO 00/17256.
- the starting products in particular the binders, are dispersed in fluids such as sulfur hexafluoride, fluoroform and / or xenon under supercritical or almost supercritical conditions.
- the fluids are selected so that the binders swell slightly.
- the density of the fluids is adapted to the density of the starting products by varying the pressure and temperature. This requires the supercritical or almost supercritical conditions.
- the powder coatings are obtained by depressurization. This process requires expensive pressure-tight systems and the use of connections, which are known to produce an extremely strong greenhouse gas effect (see international patent application on page 15, lines 28 and 29).
- radicals R 1 , R 2 , R 3 and R 4 are each independently of one another hydrogen atoms or substituted or unsubstituted alkyl
- liquid mixture (1) is emulsified in a dispersing unit in an aqueous medium, resulting in an aqueous emulsion of liquid particles,
- the emulsion (2) can be cooled so that a suspension of dimensionally stable particles is formed
- the new process for producing powder coatings was found, in which one (1) mixing at least two liquid components, each containing at least one liquid starting product in the molten state, in a static mixer, resulting in a molecularly disperse or finely dispersed liquid mixture,
- liquid mixture (1) is emulsified in a dispersing unit in an aqueous medium, resulting in an aqueous emulsion of liquid particles,
- the emulsion (2) can be cooled so that a suspension of dimensionally stable particles is formed and
- the invention was based, with the help of the inventive method and powder coatings according to the invention could be solved. Yet It was more surprising that the copolymers of monomers (a) and (b) hitherto used only as binders had the properties required to be suitable for the process according to the invention. Last but not least, it was surprising that the process according to the invention has a comparatively low energy input and very short residence times, even without aftertreatment of the emulsified. melted particles supplied powder coatings according to the invention.
- the starting products used in the process according to the invention for the production of the powder coatings according to the invention are selected with regard to the desired composition and the mechanism of the curing of the powder coatings according to the invention.
- the powder coatings according to the invention can be physically curing.
- the term “physical hardening” means the hardening of a layer of particles of the powder coatings according to the invention by filming, the linkage within the coating via loop formation of the polymer molecules of the binders (for the term see Römpp Lexikon Lacke und Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, “Binder”, pages 73 and 74. Or the filming takes place via the coalescence of binder particles (cf. Römpp Lexikon Lacke und Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, “Hardening", pages 274 and 275. Usually, no crosslinking agents are required for this purpose. If necessary, physical hardening can be supported by atmospheric oxygen, heat or by exposure to actinic radiation.
- the powder coating materials of the invention can be thermally curable. Here they can be self-networking or externally networking.
- the term “self-crosslinking” denotes the property of a binder to undergo crosslinking reactions with itself.
- a prerequisite for this is that the binders already contain both types of complementary reactive functional groups which are necessary for crosslinking on the other hand, those coating materials, in which one type of the complementary reactive functional groups is present in the binder and the other type is in a hardener or crosslinking agent.
- the powder coating materials of the invention can be curable with actinic radiation.
- actinic radiation means electromagnetic radiation, such as visible light, UV radiation or X-rays, in particular UV radiation, and corpuscular radiation such as electron beams.
- the powder coating materials of the invention can be curable thermally and with actinic radiation. If thermal and actinic light curing are used together in a powder coating, this is also referred to as “dual cure” and “dual cure powder coating”.
- the powder coatings according to the invention are preferably one-component (1-component) systems.
- one-component (IK) systems are to be understood as thermally or thermally and with actinic radiation powder coatings in which the binder and the crosslinking agent are present next to one another in the powder coating particles.
- the prerequisite for this is that the two components only crosslink with one another at higher temperatures and / or when irradiated with actinic radiation.
- the size of the dimensionally stable particles of the powder coating materials of the invention can vary widely. It is preferably between 5 and 500, preferably between 5 and 400, particularly preferably between 5 and 300, very particularly preferably 10 and 200, in particular 10 and 100 ⁇ m.
- the average particle size is preferably 10 to 300, preferably 10 to 200, particularly preferably 10 to 150, very particularly preferably 10 to 100 and in particular 10 to 50 ⁇ m.
- the particle size distribution can be narrow or wide. In most cases, a narrow particle size distribution, as described in the patent applications and literature references EP 0 687 714 A1, DE 42 04 266 A1, DE 40 38 681 A1, PG de Lange and P.
- Selier, »particle size distribution and properties of electrostatic wettable powders (1) - fractionation of the powder and characterization of the fractions «, color and varnish, 79th year, No. 5, 1973, pages 403 to 412, PG de Lange and P. Selier,» grain size distribution and properties of electrostatic Wettable powders (2) - behavior of the powder fractions when spraying and after baking «, paint and varnish, 79th year, No. 6, 1973, pages 509 to 517. and EP 0 536 791 A1 are advantageous.
- dimensionally stable means that the particles agglomerate only slightly, if at all, and / or disintegrate into smaller particles under the customary and known conditions of storage and application of powder coatings or powder coating suspensions, but also under the influence of shear forces essentially retain their original shape, the particles being highly viscous and / or solid, preferably the dimensionally stable particles being solid.
- the powder coatings according to the invention are preferably free of volatile organic compounds (VOC), in particular of organic solvents (cosolvents).
- VOC volatile organic compounds
- the process according to the invention is based on the production of at least two liquid components which contain at least one liquid starting product of the powder coatings according to the invention.
- the starting products can already be liquid at room temperature or only melt at higher temperatures. It is essential that the starting products are liquid at the process temperatures used.
- the starting products are preferably solid at room temperature.
- the two liquid components can also contain at least one additive that is not liquid at the process temperatures used. However, such a non-liquid additive must be homogeneously distributable in the liquid components and must not interfere with the mixing processes in the static mixer or in the dispersing unit.
- One of the liquid components is preferably the melt of at least one of the binders described below.
- the binder melt may also contain at least one of the additives described below. These additives are preferably liquid at the process temperatures used and / or are homogeneously distributed in the melt.
- At least one of the further liquid components is preferably at least one of the additives described below, which is liquid at the process temperatures used.
- At least one of the further liquid components is preferably the melt of at least one of the crosslinking agents described below.
- the process temperatures are chosen so that the decomposition temperature of the starting product, which decomposes most easily, is not exceeded.
- Process temperatures of 50 to 250, preferably 60 to 220, particularly preferably 70 to 200, very particularly preferably 80 to 190 and in particular 90 to 180 ° C. are preferably used.
- the liquid components are first fed to a conventional and known static mixer in the desired ratio and homogenized.
- suitable mixers are those of the Sulzer type, which are sold by Sulzer Chemtech GmbH.
- the residence times of the liquid components in the static mixer are preferably 0.5 to 20, preferably 1 to 18, particularly preferably 1.5 to 16, very particularly preferably 1.5 to 15 and in particular 1.5 to 10 seconds.
- the resulting liquid mixture contains the liquid components in a molecularly dispersed and / or finely dispersed manner.
- the liquid mixture is then fed to the dispersing unit, in which it is emulsified in an aqueous medium, so that the result is an aqueous emulsion of liquid particles, which may contain constituents that are not liquid at the process temperatures used.
- the aqueous medium preferably contains or consists essentially of water.
- the aqueous medium may contain minor amounts of the additives and / or organic solvents and / or other dissolved solid, liquid or gaseous organic and / or inorganic, low and / or high molecular weight substances described in detail below, provided these do not contain the emulsification in influence negatively, for example by causing the agglomeration of the particles.
- the term “minor amount” is understood to mean an amount which does not cancel out the aqueous character of the aqueous medium.
- the aqueous medium containing additives can also be the pigment pastes or pigment preparations described below.
- the aqueous medium preferably contains the copolymers described below on the basis of the monomers (a) and (b) described below as emulsifiers.
- dispersing units which are suitable for the emulsification of liquids in aqueous media can be used as dispersing units.
- suitable dispersing units are inline dissolvers with a rotor-stator structure, preferably toothed-ring dispersing units, in particular with at least one cylindrical arrangement of at least two crushing organ wreaths (stator and rotor) which are seated on holders and enclose and can rotate in opposite directions.
- the working gap resulting from the relative movement between the stator and rotor having walls which are not parallel to one another. It is advantageous if the rotor rotates in the sense of an opening working gap.
- Examples of well-suited gear rim dispersing units are described in detail in patent specification EP 0 648 537 A1. They are sold under the trade name "K-Generators" by Kinematica AG, Lucerne, Switzerland.
- the ratio of disperse to continuous phase can vary widely and depends on the requirements of the individual case.
- the volume ratio of liquid mixture to aqueous medium is preferably selected such that an emulsion and a suspension having a solids content of at least 40% by weight, preferably at least 45% by weight, particularly preferably at least 50% by weight, very particularly preferably at least 55 wt .-% and in particular at least 60 wt .-% results.
- the residence times of the liquid mixture and the aqueous phase or the emulsion in the dispersing unit are preferably from 0.5 to 20, preferably from 1 to 18, particularly preferably from 1.5 to 16, very particularly preferably from 1.5 to 15 and in particular 1. 5 to 10 seconds.
- the resulting emulsified liquid particles are cooled, resulting in suspended, dimensionally stable, in particular solid, particles.
- the emulsion is preferably cooled immediately after its preparation without further aftertreatment.
- the methods described in DE 196 52 813 A1, column 8, lines 9 to 17, are preferably used here.
- the liquid particles become dimensionally stable, in particular solid, which results in a suspension.
- the suspended dimensionally stable particles are isolated to produce the powder coating materials of the invention. From a methodological point of view, the insulation has no peculiarities but is carried out with the aid of the customary and known devices and methods, such as those used for filtration, spray drying or freeze drying. Drying processes in which rotary atomizers, pressure atomizers or pneumatic atomizers are used are particularly suitable, as are described in international patent application WO 99/01499, page 5, page 24, to page 7, line 27, and page 27, line 16, to page 28 , Line 19.
- the dimensionally stable particles can also be obtained from the emulsions of the liquid particles. This is preferably done by depressurization (flashing), in which the emulsions cool due to the Joule-Thomson effect, the continuous phase evaporating at the same time.
- depressurization flashing
- Conventional and known devices comprising pressure vessels and evacuated vessels can be used for this purpose.
- the emulsified liquid and the suspended dimensionally stable particles contain or consist of at least one binder.
- the binder can be viewed in itself, physically, thermally, with actinic radiation and thermally and with actinic radiation. In general, it is in the particles in an amount of 5.0 to 100, preferably 6.0 to 95, preferably 7.0 to 90, particularly preferably 8.0 to 85, very particularly preferably 9.0 to 80 and in particular 10 up to 80 wt .-%, based on the total amount of particles.
- the binder preferably has a glass transition temperature above room temperature, preferably from 30 to 80, particularly preferably from 40 to 70, very particularly preferably from 40 to 60 and in particular approximately 50 ° C. (measured with the aid of differential scanning calorimetry (DSC)).
- DSC differential scanning calorimetry
- the molecular weight of the binder can vary very widely. According to the invention, it is preferred not to select the molecular weight of the binder too high, because otherwise problems with the filming can occur.
- the number average molecular weight is preferably 500 to 30,000, preferably 500 to 25,000, particularly preferably 500 to 20,000, very particularly preferably 500 to 15,000 and in particular 500 to 10,000.
- binders are oligomeric and polymeric resins. Oligomers are understood to mean resins which contain at least 2 to 15 monomer units in their molecule. In the context of the present invention, polymers are understood to be resins which contain at least 10 recurring monomer units in their molecule. Complementary to these Terms referenced to Römpp Lexikon Lacke und Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, »Oligomere «, page 425.
- the minimum film-forming temperature of the binders is in the region of their glass transition temperature Tg and in particular is at least 25 ° C.
- the minimum film-forming temperature can be determined by drawing the aqueous dispersion of the binder onto a glass plate using a doctor blade and heating it in a gradient oven. The temperature at which the powdery layer films is called the minimum film-forming temperature.
- Suitable binders are random, alternating and / or block-shaped linear and / or branched and / or comb-like (co) polymers of olefinically unsaturated monomers, or polyaddition resins and / or polycondensation resins. These terms are supplemented by Römpp Lexikon Lacke und Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, page 457, “Polyaddition” and “Polyadditionharze (polyadducts)", and pages 463 and 464, "Polycondensates", “Polycondensation” and
- Suitable (co) polymers are (meth) acrylate (co) polymers or partially saponified polyvinyl esters, in particular
- suitable polyaddition resins and / or polycondensation resins are polyesters, alkyds, polyurethanes, Polylactones, polycarbonates, polyethers, epoxy resin-amine adducts, polyureas, polyamides, polyimides, polyester-polyurethanes, polyether-polyurethanes or polyester-polyether-polyurethanes, in particular polyester-polyurethanes.
- the (meth) acrylate (co) polymers have particular advantages and are therefore used with particular preference.
- the self-crosslinking binders of the thermally curable powder coatings according to the invention contain reactive functional groups which can undergo crosslinking reactions with groups of their type or with complementary reactive functional groups.
- the externally crosslinking binders contain reactive functional groups which can undergo crosslinking reactions with complementary reactive functional groups which are present in crosslinking agents.
- variable R stands for an acyclic or cyclic aliphatic, an aromatic and / or an aromatic-aliphatic (araliphatic) radical; the variables R and R stand for the same or different aliphatic radicals or are linked to one another to form an aliphatic or heteroaliphatic ring.
- the selection of the respective complementary groups depends on the one hand on the fact that they do not undergo any undesired reactions, in particular no premature crosslinking, during the production, storage, application and melting of the powder coatings according to the invention and / or do not interfere with curing with actinic radiation, if appropriate or inhibit, and on the other hand in which temperature range the crosslinking should take place.
- Crosslinking temperatures of 60 to 180 ° C. are preferably used in the powder coatings according to the invention. Therefore, binders with thio, hydroxyl, N-methylolamino, N, alkoxymethylamino, imino, carbamate, allophanate and / or carboxyl groups, preferably hydroxyl or carboxyl groups, on the one hand, and preferably crosslinking agents with anhydride, carboxyl, , Epoxy, blocked isocyanate, urethane, methylol, methylol ether, siloxane, Carbonate, amino, hydroxy and / or beta-hydroxyalkylamide groups, preferably epoxy, beta-hydroxyalkylamide, blocked isocyanate, urethane or alkoxymethylamino groups, used on the other hand.
- the binders contain, in particular, methylol, methylol ether and / or N-alkoxymethylamino groups.
- the functionality of the binders with respect to the reactive functional groups described above can vary very widely and depends in particular on the crosslinking density that is to be achieved and / or on the functionality of the crosslinking agent used in each case.
- the acid number is preferably 10 to 100, preferably 15 to 80, particularly preferably 20 to 75, very particularly preferably 25 to 70 and in particular 30 to 65 mg KOH / g.
- the OH number is preferably 15 to 300, preferably 20 to 250, particularly preferably 25 to 200, very particularly preferably 30 to 150 and in particular 35 to 120 mg KOH / g.
- the epoxy equivalent weight is preferably 400 to 2,500, more preferably 420 to 2,200, particularly preferably 430 to 2,100, very particularly preferably 440 to 2,000 and in particular 440 to 1,900.
- the above-described complementary functional groups can be incorporated into the binders by customary and known methods in polymer chemistry. This can be done, for example, by incorporating monomers which carry the corresponding reactive functional groups and / or using polymer-analogous reactions.
- Suitable olefinically unsaturated monomers with reactive functional groups are the monomers (a) described below, in particular
- Hydroxyalkyl esters of acrylic acid, methacrylic acid or another alpha.beta-olefinically unsaturated carboxylic acid which are derived from an alkylene glycol which is esterified with the acid, or which can be obtained by reacting the alpha.beta- olefinically unsaturated carboxylic acid with an alkylene oxide such as ethylene oxide or propylene oxide are, in particular hydroxyalkyl esters of acrylic acid,
- olefinically unsaturated alcohols such as allyl alcohol
- Polyols such as trimethylolpropane mono- or diallyl ether or pentaerythritol mono-, di- or triallyl ether;
- Acrylic and / or methacrylic acid which is then reacted during or after the polymerization reaction with the glycidyl ester of a monocarboxylic acid with 5 to 18 carbon atoms per molecule, in particular a Versatic® acid, branched in the alpha position;
- Aminoethyl acrylate aminoethyl methacrylate, allylamine or N-methyliminoethyl acrylate; N, N-di (methoxymethyl) aminoethyl acrylate or methacrylate or N, N-di (butoxymethyl) aminopropyl acrylate or methacrylate;
- Ethacrylic acid crotonic acid, maleic acid, fumaric acid or itaconic acid
- epoxy groups such as the glycidyl ester of acrylic acid, methacrylic acid, ethacrylic acid, crotonic acid,
- suitable monomer units for introducing reactive functional groups into polyester or polyester polyurethanes are 2,2-dimethylolethyl or propylamine, which are blocked with a ketone, the resulting ketoxime group being hydrolyzed again after incorporation; or compounds which contain two hydroxyl groups or two primary and / or secondary amino groups and at least one acid group, in particular at least one carboxyl group and / or at least one sulfonic acid group, such as
- Dihydroxypropionic acid dihydroxysuccinic acid, dihydroxybenzoic acid, 2,2-dimethylolacetic acid, 2,2-dimethylolpropionic acid, 2,2- Dimethylolbutyric acid, 2,2-dimenhylolpentanoic acid, 2,2-diaminovaleric acid, 3,4-diaminobenzoic acid, 2,4-diaminotoluenesulfonic acid or 2,4-diaminodiphenyl ether sulfonic acid.
- the binders of the dual-cure powder slurries and powder coatings according to the invention furthermore contain on average at least one, preferably at least two, group (s) with at least one bond (s) per molecule which can be activated with actinic radiation.
- a bond which can be activated with actinic radiation is understood to mean a bond which becomes reactive when irradiated with actinic radiation and which undergoes polymerization reactions and / or crosslinking reactions with other activated bonds of its type which take place according to radical and / or ionic mechanisms.
- suitable bonds are carbon-hydrogen single bonds or carbon-carbon, carbon-oxygen, carbon-nitrogen, carbon-phosphorus or Carbon-silicon single bonds or double bonds.
- the carbon-carbon double bonds are particularly advantageous and are therefore used with very particular preference in accordance with the invention. For the sake of brevity, they are referred to below as "double bonds".
- the group preferred according to the invention contains one double bond or two, three or four double bonds. If more than one double bond is used, the double bonds can be conjugated. According to the invention, however, it is advantageous if the double bonds are isolated, in particular each individually in the group in question here. According to the invention, it is particularly advantageous to use two, in particular one, double bond.
- the dual-cure binder contains at least one of the groups described above which can be activated with actinic radiation.
- the functionality of the binder in this regard is an integer, i.e. for example two, three, four, five or more, or non-integer, i.e. for example 2.1 to 10.5 or more. Which functionality is chosen depends on the requirements placed on the respective pigmented dual-cure powder slurries and powder coatings according to the invention.
- the groups are structurally different from one another or of the same structure.
- Suitable groups are (meth) acrylate, ethacrylate, crotonate, cinnamate, vinyl ether, vinyl ester, dicyclopentadienyl, norbornenyl, isoprenyl, isopropenyl, allyl or butenyl groups; Dicyclopentadienyl, norbornenyl, isoprenyl, isopropenyl, allyl or butenyl ether groups or dicyclopentadienyl, norbornenyl, isoprenyl, isopropenyl, allyl or butenyl ester groups, but especially acrylate groups.
- the groups are preferably bonded to the respective basic structures of the binders via urethane, urea, allophanate, ester, ether and / or amide groups, but in particular via ester groups.
- This is usually done by customary and known polymer-analogous reactions, such as the reaction of pendant glycidyl groups with the above-described olefinically unsaturated monomers which contain an acid group, of pendant hydroxyl groups with the halides of these monomers, of isocyanates containing hydroxyl groups with double bonds, such as vinyl isocyanate, methacryloyl isocyanate and / or 1- (1- isocyanato-1-methylethyi) -3- (1-methylethenyl) benzene (TMI® from CYTEC) or of isocanate groups with the above-described monomers containing hydroxyl groups.
- TMI® 1- (1- isocyanato-1-methylethyi) -3- (1-methyleth
- EP 0 652 264 A1 described binders intended for use in powder clearcoat slurries curable with thermal and / or actinic radiation
- the preparation of the binders also has no special features in terms of method, but instead takes place with the aid of the customary and known methods of polymer chemistry, as described in detail, for example, in the patents listed above.
- Suitable reactors for the copolymerization are the customary and known stirred kettles, stirred kettle cascades, tubular reactors, loop reactors or Taylor reactors, as described, for example, in the patent specifications and patent applications DE 1 071 241 B1, EP 0498 583 A1 or DE 198 28 742 A1 or in the article by K. Kataoka in Chemical Engineering Science, Volume 50, Issue 9, 1995, pages 1409 to 1416.
- polyester and alkyd resins are described, for example, in the standard work Ullmanns Encyklopadie der Technische Chemie, 3rd edition, volume 14, Urban & Schwarzenberg, Kunststoff, Berlin, 1963, pages 80 to 89 and pages 99 to 105, as well as in the books: "Resines Alkydes-Polyesters” by J. Bourry, Paris, Dunod Verlag, 1952, "Alkyd Resins” by CR Martens, Reinhold Publishing Corporation, New York, 1961, and "Alkyd Resin Technology” by TC Patton, Intersience Publishers, 1962, described.
- the (meth) acrylate copolymers containing epoxide groups, with an epoxy equivalent weight are preferably 400 to 2,500, preferably 420 to 2,200, particularly preferably 430 to 2,100, very particularly preferably 440 to 2,000 and in particular 440 to 1,900, a number average molecular weight (gel permeation chromatography using) a polystyrene standard) of preferably 2,000 to 20,000 and in particular 3,000 to 10,000, and a glass transition temperature (TG) of preferably 30 to 80, preferably 40 to 70 and in particular 40 to 60 ° C.
- TG glass transition temperature
- the externally crosslinking powder coatings according to the invention which are curable thermally or thermally and with actinic radiation or the particles used for their preparation contain at least one crosslinking agent which contains the reactive functional groups which are complementary to the reactive functional groups of the binders. The person skilled in the art can therefore easily select the crosslinking agents suitable for the individual case.
- the crosslinking agents are preferably fed to the static mixer as a separate liquid component, in particular as a melt, or in a separate liquid component, in particular in a melt.
- the ratio of binder melt to crosslinker melt depends on the desired ratio of complementary reactive functional groups in the powder coatings according to the invention.
- beta-hydroxyalkylamides such as N, N, N ', N'-tetrakis (2-hydroxyethyl) adipamide or N, N, N', N'-tetrakis (2-hydroxypropyl) adipamide and / or
- Tris (alkoxycarbonylamino) triazines as described in the patents US 4,939,213 A 1, US 5,084,541 A 1, US 5,288,865 A 1 or EP 0 604 922 A 1.
- the content of the crosslinking agents in the particles can likewise vary very widely and is based on the requirements of the individual case, in particular on the number of reactive functional groups present and on the crosslinking density as they are in the Coatings, adhesive layers and seals produced according to the powder coatings according to the invention should be present.
- the content is preferably 1 to 50, preferably 2 to 45, particularly preferably 3 to 40, very particularly preferably 4 to 35 and in particular 5 to 30% by weight, based on the solids of the powder coatings according to the invention.
- the powder coatings according to the invention can contain color and / or effect, fluorescent, electrically conductive and / or magnetically shielding pigments, metal powders, organic and inorganic, transparent or opaque fillers and / or nanoparticles (hereinafter referred to collectively as "pigments").
- the pigments are used when the powder coatings according to the invention are to be used as pigmented coating materials, adhesives and sealants.
- aqueous media or form, such as, in the form of pigment pastes or pigment preparations (cf. Römpp Lexikon Lacke und Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, Pigment Preparations «, page 452) already mentioned above, the aqueous media.
- pigment pastes or pigment preparations cf. Römpp Lexikon Lacke und Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, Pigment Preparations «, page 452
- emulsifiers described below.
- the emulsified or suspended particles contain at least one pigment; i.e. the total amount of pigments used is in and / or on the particles.
- the emulsified or suspended particles contain no pigment; ie all pigments are in a separate solid phase.
- the foregoing applies analogously to their particle size.
- the emulsified or suspended particles contain part of the pigments used, whereas the other part of the pigments is present as a separate solid phase.
- the proportion present in the particle or particles can be the main amount, i.e. are more than 50% of the pigments used. However, less than 50% may also be in and / or on the particles. With regard to the particle sizes, what has been said above also applies here analogously.
- variant of the process according to the invention is preferred in the production of the pigmented powder coatings according to the invention depends in particular on the nature of the pigments and their functions.
- the variant in which all or most of the pigments are present in and / or on the emulsified and suspended particles is particularly preferably used.
- suitable effect pigments are platelet pigments such as commercially available aluminum bronzes, aluminum bronzes chromated according to DE 36 36 183 A1, and commercially available stainless steel bronzes and non-metallic effect pigments, such as pearlescent or interference pigments, platelet-shaped effect pigments based on iron oxide, or a reddish shade of pink from brown has or liquid crystalline effect pigments.
- platelet pigments such as commercially available aluminum bronzes, aluminum bronzes chromated according to DE 36 36 183 A1
- non-metallic effect pigments such as pearlescent or interference pigments, platelet-shaped effect pigments based on iron oxide, or a reddish shade of pink from brown has or liquid crystalline effect pigments.
- Suitable inorganic color pigments are white pigments such as titanium dioxide, zinc white, zinc sulfide or lithopone; Black pigments such as carbon black, iron-manganese black or spinel black; Colored pigments such as chromium oxide, chromium oxide hydrate green, cobalt green or ultramarine green, cobalt blue, ultramarine blue or manganese blue, ultramarine violet or cobalt and manganese violet, iron oxide red, cadmium sulfoselenide, molybdenum red or ultramarine red; Iron oxide brown, mixed brown, spinel and corundum phases or chrome orange; or iron oxide yellow, nickel titanium yellow, chrome titanium yellow, cadmium sulfide, cadmium zinc sulfide, chrome yellow or bismuth vanadate.
- white pigments such as titanium dioxide, zinc white, zinc sulfide or lithopone
- Black pigments such as carbon black, iron-manganese black or spinel black
- suitable organic color pigments are monoazo pigments, bisazo pigments, anthraquinone pigments, and
- Benzimidazole pigments quinacridone pigments, quinophthalone pigments, diketopyrrolopyrrole pigments, dioxazine pigments, indanthrone pigments, isoindoline pigments, isoindolinone pigments, azomethine pigments,
- Thioindigo pigments metal complex pigments, perinone pigments, and
- Perylene pigments phthalocyanine pigments or aniline black.
- fluorescent pigments are bis (azomethine) pigments.
- Suitable electrically conductive pigments are titanium dioxide / tin oxide pigments.
- magnétiqueally shielding pigments examples include pigments based on iron oxides or chromium dioxide.
- suitable metal powders are powders made from metals and metal alloys aluminum, zinc, copper, bronze or brass.
- organic and inorganic fillers are chalk, calcium sulfates, barium sulfate, silicates such as talc, mica or kaolin, silicas, oxides such as aluminum hydroxide or magnesium hydroxide or organic fillers such as plastic powder, in particular made of polylamide or polyacrylonitrile.
- silicates such as talc, mica or kaolin
- silicas oxides such as aluminum hydroxide or magnesium hydroxide
- organic fillers such as plastic powder, in particular made of polylamide or polyacrylonitrile.
- Mica and talc are preferably used if the scratch resistance of the coatings produced from the powder coatings according to the invention is to be improved.
- platelet-shaped inorganic fillers such as talc or mica
- non-platelet-shaped inorganic fillers such as chalk and dolomite Calcium sulfate or barium sulfate
- Suitable transparent fillers are those based on silicon dioxide, aluminum oxide or zirconium oxide.
- Suitable nanoparticles are selected from the group consisting of hydrophilic and hydrophobic, in particular hydrophilic, nanoparticles based on silicon dioxide, aluminum oxide, zinc oxide, zirconium oxide and the polyacids and heteropolyacids of transition metals, preferably of molybdenum and tungsten, with a primary article size ⁇ 50 nm, preferably 5 to 50 nm, in particular 10 to 30 nm.
- the hydrophilic nanoparticles preferably have no matting effect. Nanoparticles based on silicon dioxide are particularly preferably used.
- Hydrophilic pyrogenic silicon dioxides are very particularly preferably used, the agglomerates and aggregates of which have a chain-like structure and which can be produced by flame hydrolysis of silicon tetrachloride in a detonating gas flame. These are sold, for example, by Degussa under the brand Aerosil ®. Precipitated water glasses, such as nanorectorites, which are sold, for example, by Südchemie under the Optigel ® brand or by Laporte under the Laponite ® brand, are also used with particular preference.
- Pigment pastes or pigment preparations can have a particularly high content of nanoparticles when using the particularly preferred emulsifiers described below, which is another valuable advantage of the emulsifiers to be used with particular preference.
- the powder coatings according to the invention can contain, in addition to the pigments described above or instead of these, molecularly dispersed organic dyes.
- the organic dyes can be fed to the static mixer as separate liquid or in separate liquid components or in the binder and / or crosslinking agent melts and / or they can be present in the aqueous media described above.
- the molecularly disperse dyes can be either in the emulsified or suspended particles or in the continuous phase, ie. H. the continuous, i.e. aqueous medium. However, they can also be present in the particles or in the continuous phase.
- the proportion present in the particles can be the main amount, i.e. by more than 50% of the organic used
- the distribution of the organic dyes between the phases can correspond to the thermodynamic equilibrium which results from the solubility of the organic dyes in the phases.
- the distribution can also be far from the thermodynamic equilibrium. Those are preferred
- the content of the molecularly dispersed organic dyes in the powder coating materials according to the invention can vary extremely widely and depends primarily on the color and hue to be adjusted and on the amount of any pigments present.
- the pigmented and unpigmented powder coatings according to the invention can contain at least one further additive. As part of the method according to the invention, this can be fed to the static mixer as a separate liquid component or in a separate liquid component.
- the additive is preferably incorporated into the emulsified and suspended particles via the binder melts.
- suitable additives which can be contained in both the pigmented and the non-pigmented powder ticks according to the invention are UV absorbers, antioxidants, light stabilizers, radical scavengers, deaerating agents, wetting agents, slip additives, polymerization inhibitors, catalysts for crosslinking, thermolabile free radical initiators, photoinitiators , thermally curable reactive diluents, reactive diluents curable with actinic radiation, Adhesion promoter, leveling agents, film-forming aids, flame retardants, corrosion inhibitors, pouring aids, waxes, siccatives, biocides and / or matting agents.
- thermally curable reactive diluents are positionally isomeric diethyloctanediols or hydroxyl group-containing hyperbranched compounds or dendrimers, as are described in German patent applications DE 198 09 643 A1, DE 198 40 605 A1 or DE 198 05421 A1.
- Suitable reactive diluents curable with actinic radiation are those described in Römpp Lexikon Lacke und Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, on page 491 under the keyword “reactive diluents”.
- Suitable light stabilizers are HALS compounds, benzotriazoles or oxalanilides.
- antioxidants examples include hydrazines and phosphorus compounds.
- Suitable polymerization inhibitors are organic phosphites or 2,6 di-tert-butylphenol derivatives.
- thermolabile free radical initiators examples include dialkyl peroxides, hydroperoxides, peresters, azodinitriles or C-C-cleaving initiators.
- Suitable catalysts for the crosslinking are bismuth lactate, citrate, ethylhexanoate or dimethylol propionate, dibutyltin dilaurate,
- Imidazole derivatives such as 2-styrylimidazole, 1-benzyl-2-methylimidazole, 2-
- Acetic acid complex tetrabutylphosphonium iodide, tetrabutylphosphonium bromide and tetrabutylphosphonium acetate-acetic acid complex, as described, for example, in US Pat. Nos. 3,477,990 A or US
- Suitable deaerating agents are diazadicycloundecane or benzoin.
- Suitable wetting agents are siloxanes, fluorine-containing compounds, carboxylic acid half-esters, phosphoric acid esters, polyacrylic acids and their copolymers or polyurethanes.
- An example of a suitable adhesion promoter is tricyclodecanedimethanol.
- Suitable film-forming aids are cellulose derivatives.
- Magnesium stearate is an example of a suitable matting agent.
- suitable leveling agents, flame retardants, siccatives, drying agents, skin preventives, corrosion inhibitors, biocides and waxes are described in detail in the textbook “Varnish Additives” by Johan Bieleman, Wiley-VCH, Weinheim, New York, 1998 ,
- low-boiling and high-boiling ("long") organic solvents are also suitable as additives.
- the organic solvents are used only exceptionally.
- Emulsifiers used are used.
- the customary and known emulsifiers come into consideration, such as those cited in the introduction
- Patent applications are described. More examples of
- Emulsifiers are nonionic emulsifiers, such as alkoxylated alkanols and polyols, phenols and alkylphenols, or anionic emulsifiers, such as alkali metal salts or ammonium salts of alkane carboxylic acids, alkane sulfonic acids, and sulfonic acids of alkoxylated alkanols and polyols, phenols and alkylphenols.
- nonionic emulsifiers such as alkoxylated alkanols and polyols, phenols and alkylphenols
- anionic emulsifiers such as alkali metal salts or ammonium salts of alkane carboxylic acids, alkane sulfonic acids, and sulfonic acids of alkoxylated alkanols and polyols, phenols and alkylphenols.
- An emulsifier is preferably used for the production of the powder coatings according to the invention, the aqueous solution of which has a surface tension of> 30, preferably> 35 and in particular> 40 mN / m at the critical micelle formation concentration (KMK).
- the critical micelle formation concentration (KMK) is the characteristic concentration at which micelles form from surfactant molecules in aqueous solutions above a certain temperature (Krafft point) (cf. Römpp-Chemie-Lexikon, Georg Thieme Verlag, Stuttgart, New York, 9th edition, 1991, volume 4, pages 2769 and 2770, »Micellen«).
- Particularly preferred emulsifiers are copolymers which are obtained by single- or multi-stage, in particular single-stage, radical, in particular controlled radical, copolymerization of
- radicals R 1 , R 2 , R 3 and R 4 are each independently of one another hydrogen atoms or substituted or unsubstituted alkyl
- substantially acid-free (meth) acrylic esters such as (meth) alkyl or cycloalkyl esters of up to 20 carbon atoms in the alkyl radical, in particular methyl, ethyl,
- cycloaliphatic (meth) acrylic acid esters in particular cyclohexyl, isobornyl, dicyclopentadienyl, octahydro-4,7-methano-1H-indene methanol or tert-butylcyclohexyl (meth) acrylate;
- (Meth) acrylic acid oxaalkyl esters or oxacycloalkyl esters such as ethyl triglycol (meth) acrylate and methoxy oligoglycol (meth) acrylate with a molecular weight Mn of preferably 550 or other ethoxylated and / or propoxylated hydroxyl group-free (meth) acrylic acid derivatives.
- Amounts of higher functional (meth) acrylic acid alkyl or cycloalkyl esters such as ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, butylene glycol, pentane-1, 5-diol, hexane-1, 6-diol, octahydro-4,7- methano-1H-indene-dimethanol or cyclohexane-1, 2-, -1, 3- or -1, 4-diol-di (meth) acrylate; Trimethylolpropane di or
- (a2) Monomers which carry at least one hydroxyl group, amino group, alkoxymethylamino group or imino group per molecule and are essentially free of acid groups, such as hydroxyalkyl esters of acrylic acid, methacrylic acid or another alpha-beta-olefinically unsaturated carboxylic acid which are derived from an alkylene glycol and which the acid is esterified, or those which are unsaturated by reaction of the alpha, beta-olefin
- Carboxylic acid with an alkylene oxide are available, in particular hydroxyalkyl esters of acrylic acid, methacrylic acid, ethacrylic acid, crotonic acid, maleic acid, fumaric acid or itaconic acid, in which the hydroxyalkyl group contains up to 20 carbon atoms, such as 2-hydroxyethyl, 2-hydroxypropyl, 3-hydroxypropyl, 3-hydroxybutyl
- cyclic esters e.g. epsilon-caprolactone and these hydroxyalkyl or cycloalkyl esters
- olefinically unsaturated alcohols such as allyl alcohol or polyols such as trimethylolpropane mono- or diallyl ether or pentaerythritol mono-, di- or triallyl ether
- (a3) monomers which carry at least one acid group which can be converted into the corresponding acid anion group per molecule, such as acrylic acid, methacrylic acid, beta-carboxyethyl acrylate, ethacrylic acid, crotonic acid, maleic acid, fumaric acid or itaconic acid; olefinically unsaturated sulfonic or phosphonic acids or their partial esters; or maleic acid mono (meth) acryloyloxyethyl ester, succinic acid mono (meth) acryloyloxyethyl ester or phthalic acid mono (meth) acryloyloxyethyl ester.
- Monocarboxylic acids can be obtained by reacting formic acid or carbon monoxide and water with olefins in the presence of a liquid, strongly acidic catalyst; the olefins can be cracked products of paraffinic hydrocarbons, such as mineral oil fractions, and can contain both branched and straight-chain acyclic and / or cycloaliphatic olefins.
- olefins When such olefins are reacted with formic acid or with carbon monoxide and water, a mixture of carboxylic acids is formed in which the carboxyl groups are predominantly located on a quaternary carbon atom.
- vinyl esters (a4) can, however, also be prepared from the acids in a manner known per se, for example by allowing the acid to react with acetylene. Because of the good availability, vinyl esters of saturated aliphatic monocarboxylic acids with 9 to 11 carbon atoms which are branched on the alpha carbon atom, but especially Versati c® acids.
- Glycidyl ester of a monocarboxylic acid branched in the alpha position with 5 to 18 carbon atoms per molecule, in particular a Versatic® acid, is reacted.
- Cyclic and / or acyclic olefins such as ethylene, propylene, but-1-ene, pent-1-ene, hex-1-ene, cyclohexene, cyclopentene, norbones, butadiene, isoprene, cyclopentadiene and / or dicyclopentadiene.
- (a7) (Meth) acrylic acid amides such as (meth) acrylic acid amide, N-methyl, N, N-dimethyl, N-ethyl, N, N-diethyl, N-propyl, N, N-dipropyl, N -
- N-dibutyl N-cyclohexyl, N, N-cyclohexyl-methyl and / or N-methylol
- N, N-dimethylol N-methoxymethyl, N, N-di (methoxymethyl ) -, N-ethoxymethyl and / or N, N-
- epoxy groups such as the glycidyl ester of acrylic acid, methacrylic acid, ethacrylic acid, crotonic acid, maleic acid, fumaric acid and / or itaconic acid.
- vinylaromatic hydrocarbons such as styrene, alpha-alkylstyrenes, in particular alpha-methylstyrene, and / or vinyltoluene; Vinylbenzoic acid (all isomers), N, N-diethylaminostyrene (all isomers), alpha-methylvinylbenzoic acid (all isomers), N, N-
- (a10) nitriles such as acrylonitrile and / or methacrylonitrile.
- Vinylidene dihalides such as vinyl chloride, vinyl fluoride,
- Vinylidene dichloride or vinylidene difluoride N-vinylamides such as vinyl-N-methylformamide, N-vinylcaprolactam, 1-vinylimidazole or N-vinylpyrrolidone; Vinyl ethers such as ethyl vinyl ether, n-propyl vinyl ether,
- Allyl compounds in particular allyl ethers and esters such as allyl methyl, ethyl, propyl or butyl ether or allyl acetate, propionate or butyrate.
- Molecular weight Mn from 1,000 to 40,000 and on average 0.5 to 2.5 olefinically unsaturated double bonds per molecule; in particular polysiloxane macromonomers which have a number average molecular weight Mn of 2,000 to 20,000, particularly preferably 2,500 to 10,000 and in particular 3,000 to 7,000 and on average 0.5 to 2.5, preferably 0.5 to 1.5, olefinically unsaturated double bonds per molecule, as described in DE-A-38 07 571 on pages 5 to 7 of DE-A 37 06 095 in columns 3 to 7, EP-B-0 358 153 on pages 3 to 6, in US-A 4,754,014 in columns 5 to 9, in DE-A 44 21 823 or in international patent application WO 92 / 22615 on page 12, line 18, to page 18, line 10.
- each of the above-mentioned monomers (a1) to (a14) can be polymerized alone with the monomer (b).
- the method can be customized.
- reactive functional groups can be incorporated into the copolymers, by means of which the copolymers can be crosslinked into the coatings, adhesive layers and seals produced from the powder slurries and powder coatings according to the invention.
- Compounds of the general formula I are used as monomers (b).
- the radicals R 1 , R 2 , R 3 and R 4 each independently represent hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R 1 , R 2 , R 3 and R 4 stand for substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, in particular substituted or unsubstituted aryl radicals.
- alkyl radicals examples include methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert-butyl, amyl, hexyl or 2-ethylhexyl.
- Suitable cycloalkyl radicals are cyclobutyl, cyclopentyl or cyclohexyl.
- alkylcycloalkyl radicals examples include methylenecyclohexane, ethylenecyclohexane or propane-1,3-diylcyclohexane.
- Suitable cycloalkylalkyl radicals are 2-, 3- or 4-methyl-, ethyl-, propyl- or butylcyclohex-1-yl.
- Suitable aryl radicals are phenyl, naphthyl or biphenylyl.
- alkylaryl radicals examples include benzyl or ethylene or propane-1,3-diyl-benzene.
- Suitable cycloalkylaryl radicals are 2-, 3-, or 4-phenylcyclohex-1-yl.
- suitable arylalkyl radicals are 2-, 3- or 4-methyl, ethyl, propyl or butylphen-1-yl.
- Suitable arylcycloalkyl radicals are 2-, 3- or 4-cyclohexylphen-1 -yl.
- radicals R 1 , R 2 , R 3 and R 4 described above can be substituted.
- electron-withdrawing or electron-donating atoms or organic residues can be used.
- Suitable substitutes are halogen atoms, in particular chlorine and fluorine, nitrile groups, nitro groups, partially or completely halogenated, in particular chlorinated and / or fluorinated, alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl and Arylcycloalkyl radicals, including those exemplified above, in particular tert-butyl; Aryloxy, alkyloxy and cycloalkyloxy radicals, in particular phenoxy, naphthoxy, methoxy, ethoxy, propoxy, butyloxy or cyclohexyloxy; Arylthio, alkylthio and cycloalkylthio radicals, in particular phenylthio, naphthylthio, methylthio, ethylthio, propylthio, butylthio
- Examples of monomers (b) which are particularly preferably used according to the invention are diphenylethylene, dinaphthaleneethylene, ice or trans Stilbene, vinylidene bis (4-N, N-dimethylaminobenzene), vinylidene bis (4-aminobenzene) or vinylidene bis (4-nitrobenzene).
- the monomers (b) can be used individually or as a mixture of at least two monomers (b).
- diphenylethylene is of very particular advantage and is therefore used with particular preference in accordance with the invention.
- the monomers (a) and (b) to be used according to the invention are reacted with one another to form the copolymer in the presence of at least one radical initiator.
- initiators which can be used are: dialkyl peroxides, such as di-tert-butyl peroxide or dicumyl peroxide; Hydroperoxides, such as cumene hydroperoxide or partial - butyl hydroperoxide; Peresters, such as tert-butyl perbenzoate, tert-butyl perpivalate, tert-butyl per-3,5,5-trimethyl hexanoate or tert-butyl per-2-ethyl hexanoate; Potassium, sodium or ammonium peroxodisulfate; Azodinitriles such as azobisisobutyronitrile; C-C-cleaving initiators such as benzpinacol silyl ether; or a combination of a non-oxidizing initiator
- Comparatively large amounts of free-radical initiator are preferably added, the proportion of the initiator in the reaction mixture, based in each case on the total amount of the monomers (a) and the initiator, particularly preferably 0.5 to 50% by weight, very particularly preferably 1 to 20 % By weight and in particular 2 to 15% by weight.
- the weight ratio of initiator to monomers (b) is preferably 4: 1 to 1: 4, particularly preferably 3: 1 to 1: 3 and in particular 2: 1 to 1: 2. Further advantages result if the initiator within the specified limits Excess is used.
- the radical copolymerization is preferably carried out in the devices mentioned above, in particular stirred kettles or Taylor reactors, the Taylor reactors being designed so that the conditions of the Taylor flow are met over the entire length of the reactor, even if the kinematic viscosity of the reaction medium changes greatly as a result of the copolymerization , especially increases.
- the copolymerization is carried out in an aqueous medium.
- the aqueous medium essentially contains or consists of water.
- the aqueous medium can contain minor amounts of the additives and / or organic solvents and / or other dissolved solid, liquid or gaseous organic and / or inorganic, low and / or high molecular weight substances described above, provided that they do not contain the copolymerization negatively influence or even inhibit.
- the term “minor amount” is understood to mean an amount which does not cancel out the aqueous character of the aqueous medium.
- the copolymerization is preferably carried out in the presence of at least one base.
- Low molecular weight are particularly preferred
- Bases such as sodium hydroxide solution, potassium hydroxide solution, ammonia, diethanolamine, triethanolamine, mono-, di- and triethylamine, and / or Dimethylethanolamine, especially ammonia and / or di- and / or triethanolamine.
- the copolymerization is advantageously carried out at temperatures above room temperature and below the lowest decomposition temperature of the monomers used in each case, a temperature range from 10 to 150 ° C., very particularly preferably 70 to 120 ° C. and in particular 80 to 110 ° C. being chosen.
- the copolymerization can also be carried out under pressure, preferably under 1.5 to 3000 bar, preferably 5 to 1500 and in particular 10 to 1000 bar.
- the copolymer is not subject to any restrictions with regard to the molecular weight distributions.
- the copolymerization is advantageously carried out in such a way that a molecular weight distribution Mw / Mn measured with gel permeation chromatography using polystyrene as the standard of ⁇ 4, preferably particularly preferably ⁇ 2 and in particular ⁇ 1, 5 and in individual cases also ⁇ 1, 3.
- the molecular weights of the constituents (A) can be controlled within wide limits by the choice of the ratio of monomer (a) to monomer (b) to radical initiator.
- the content of monomer (b) in particular determines the molecular weight in such a way that the greater the proportion of monomer (b), the lower the molecular weight obtained.
- the copolymer resulting from the copolymerization generally falls in the form of a mixture with the aqueous medium Dispersion. In this form it can be used directly as an emulsifier or isolated as a solid and then used for the purposes of the invention.
- the emulsifier in particular as a solid, can be introduced into the melts and / or, in particular as a dispersion, into the aqueous media. It is preferably introduced into the aqueous media in the form of a dispersion.
- the particularly preferred emulsifier is introduced into the aqueous media via at least one of the pigment pastes or pigment preparations described above. Or the pigment pastes or pigment preparations in question form the aqueous medium.
- the amount of emulsifiers used in the process according to the invention can vary widely and depends on the requirements of the individual case. Thus, they can be used in the amounts known from the prior art and customary for emulsifiers. They are preferably used in an amount of 0.01 to 5.0, preferably 0.02 to 4.5, particularly preferably 0.03 to 4, very particularly preferably 0.04 to 3.5 and in particular 0.05 to 3% by weight .-%, each based on the amount of melted or solid particles and the emulsifiers used.
- the powder coatings according to the invention have excellent fluidity
- the coating materials of the invention are outstandingly suitable for the production of single- or multi-layer, color and / or effect-giving, electrically conductive, magnetically shielding or fluorescent coatings, such as filler coatings, basecoats, solid-color topcoats or combination effect layers, or single- or multi-layer clearcoats.
- the adhesives according to the invention are outstanding for the production of adhesive layers, and the sealing compounds according to the invention are outstandingly suitable for the production of seals.
- the unpigmented powder coating materials of the invention are used as clearcoats for the production of single- or multi-layer clearcoats.
- the clearcoats according to the invention are used for the production of color and / or effect multi-layer coatings by the wet-on-wet method, in which a basecoat, in particular a water-based basecoat, is applied to the surface of a substrate, after which the resulting basecoat film is applied without it harden, dry and covered with a clear coat. The two layers are then hardened together.
- a combination effect layer is to be understood as a paint job that is in a colored and / or effect painting fulfills at least two functions. Functions of this kind are in particular protection against corrosion, the imparting of adhesion, the absorption of mechanical energy and the coloring and / or effect.
- the combination effect layer preferably serves for the absorption of mechanical energy as well as for coloring and / or effecting at the same time; it therefore fulfills the functions of a filler paint or stone chip protection primer and a base coat.
- the combination effect layer preferably also has a corrosion protection effect and / or an adhesion-promoting effect.
- the pigmented coatings or varnishes can also be produced using the wet-on-wet method.
- the pigmented powder coatings according to the invention can be applied to electrodeposition lacquer layers which have not or are not fully hardened, after which the layers lying one above the other are hardened together.
- the very particular advantage of the powder coatings according to the invention is that they can be used to produce all types of multi-layer coatings which are based entirely or predominantly on the powder coatings according to the invention.
- the application of powder coatings also has no special features in terms of method, but is carried out, for example, using the customary and known fluidized bed processes, such as those found in the company publications of BASF Coatings AG, “Powder coatings, for industrial applications”, January 2000, or “Coatings Partner, Pulveriack Spezial «, 1/2000, or Römpp Lexikon Lacke und Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, pages 187 and 188,» Electrostatic Powder Spraying «,» Electrostatic Spraying «and» Electrostatic Whirl Bath Process «.
- Suitable substrates are all those whose surface is not damaged by the application of heat and / or actinic radiation during the curing of the layers thereon.
- the substrates preferably consist of metals, plastics, wood, ceramics, stone, textiles, fiber composites, leather, glass, glass fibers, glass and rock wool, mineral and resin-bound building materials, such as gypsum and cement boards or roof tiles, as well as composites of these materials.
- the coating materials, adhesives and sealants are excellent for the coating, gluing and sealing of motor vehicle bodies, parts of motor vehicle bodies, motor vehicles indoors and outdoors, structures indoors and outdoors, doors, windows and furniture as well as for painting, gluing and sealing in the context of industrial painting, for example of small parts such as nuts, screws, rims or hubcaps, of coils, containers, packaging, electrical components such as motor windings or transformer windings, and of white goods such as household appliances, boilers and radiators.
- primers can be used which are produced in a customary and known manner from electrocoat materials. Both anodic and cathodic electrocoat materials, but in particular cathodic electrocoat materials, are suitable for this.
- non-functionalized and / or non-polar plastic surfaces these can be subjected to a pretreatment in a known manner, such as with a plasma or with flame treatment, or can be provided with a hydro primer before coating.
- the curing of the powder coating materials according to the invention has no special features in terms of method, but instead takes place in accordance with the customary and known thermal methods, such as heating in a forced-air oven or irradiation with IR lamps.
- Radiation sources such as high-pressure or low-pressure mercury vapor lamps, which may be doped with lead to open a radiation window up to 405 nm, or electron beam sources are suitable for curing with actinic radiation. Further examples of suitable methods and devices for curing with actinic radiation are described in German patent application DE 198 18 735 A1, column 10, lines 31 to 61.
- Clear coats are easy to manufacture and have excellent optical properties and a very high light, chemical, water, condensation and weather resistance. In particular, they are free from cloudiness and inhomogeneities. They are tough, flexible and scratch-resistant. They have very good reflow behavior and excellent interlayer adhesion and good to very good adhesion to conventional and known car refinishing paints.
- the adhesive layers according to the invention permanently bond a wide variety of substrates to one another and have high chemical and mechanical stability even in the case of extreme temperatures and / or temperature fluctuations.
- the seals according to the invention permanently seal the substrates, with high chemical and mechanical stability even with extreme temperatures and / or temperature fluctuations even i. V. m. exposed to aggressive chemicals.
- Another advantage of the dual-cure coating materials, adhesives and sealing compounds is that they can also be coated with actinic radiation in the shadow zones of complex three-dimensional substrates such as car bodies, radiators or electrical winding goods, even without optimal, in particular complete, illumination of the shadow zones , Deliver adhesive layers and seals whose application properties profile at least comes close to that of the coatings, adhesive layers and seals outside the shadow zones.
- the coatings, adhesive layers and seals located in the shadow zones are no longer easily damaged by mechanical and / or chemical action, as can occur, for example, when installing further components of motor vehicles in the coated bodies.
- the primed or unprimed substrates which are usually used in the above-mentioned technological fields and which are coated with at least one coating according to the invention, bonded with at least one adhesive layer according to the invention and / or sealed with at least one seal according to the invention, have a particularly long profile with a particularly advantageous application properties Service life on what makes them economically particularly attractive.
- Production Example 1 The production of an emulsifier
- the first feed existed 10.18 parts by weight of acrylic acid, 18.35 parts by weight of methyl methacrylate and 1.49 parts by weight of diphenylethylene.
- the second feed consisted of 9.9 parts by weight of a 25% by weight ammonia solution in water.
- the third feed consisted of a solution of 2.25 Parts by weight of ammonium peroxodisulfate in 5.25 parts by weight of deionized water. The first and the second feed were metered in over an hour.
- the third feed was metered in over 1.25 hours. After the addition had ended, the polymerization was continued for four hours slowly lowered, resulting in a tue version of the emulsifier with a solids content of 33 wt .-%.
- the aqueous solution of the emulsifier had a surface tension of 50 mN / m at the critical micelle concentration.
- the binder was prepared by solution polymerization of 25 parts by weight of styrene, 36 parts by weight of methyl methacrylate, 28 parts by weight of glycidyl methacrylate and 11 parts by weight of butyl methacrylate in xylene at 140 ° C.
- the initiator used was 6.7 parts by weight of tert-butyl perethyl hexanoate Polymerization, the solvent was stripped.
- the resulting solid resin had a number average molecular weight of 4,200 daltons and an epoxy equivalent weight of 550 g / mol. It was heated to process temperature in a melt container.
- the first melt container contained a mixture of
- Tinuvin® CGL 1545 commercially available UV absorber from Ciba Specialty Chemicals
- Tinuvin® 123 commercially available reversible radical scavenger, HALS, from Ciba Specialty Chemicals
- Irgafos® P-EPQ commercially available antioxidant from Ciba Specialty Chemicals
- Troy® EX 542 commercial gasoline-containing degassing agent from Troy, USA
- the melt was pumped into the mixer at a process temperature of 152 ° C. with a mass flow of 34 kg / h. Their share in the disperse phase was 73.6% by weight.
- the second melt container contained dodecanedioic acid. This was pumped into the mixer at a process temperature of 154 ° C with a mass flow of 7.2 kg / h. Their share in the disperse phase was 16.2% by weight.
- the third melt container contained a 3,5-dimethylpyrazoI blocked polyisocyanate based on isophorone diisocyanate with an NCO content of 15.5% by weight. It was pumped into the mixer at a process temperature of 134 ° C. with a mass flow of 5.0 kg / h. Its share of the disperse phase was 10.8% by weight.
- the melt entered the chamber of the gear rim dispersing unit.
- the continuous aqueous phase consisting of 95% by weight of deionized water and 5.0% by weight of the emulsifier dispersion of preparation example 1 was metered in from a further metering container with a mass flow of 77.5 kg / h.
- the speed of the gear rim dispersing unit was 9,000 rpm.
- the resulting emulsion was rapidly cooled with a tube cooler after leaving the gear rim dispersing unit.
- the resulting suspension had a z-average particle size of 12.9 ⁇ m (measured with the laser diffraction device from Malvern) and a solids content of 37.5% by weight (one hour / 130 "Celsius).
- the suspension was completely stable against settling and had excellent transport and application properties. It was also ideal for the production of powder coatings.
- the suspension was sprayed in a spray tower so that the temperature of the particles did not exceed 40 ° C.
- the temperature of the drying air flow was 110 ° C.
- the water content of the powder coating according to the invention was less than 0.5% by weight. Its average particle size was 25 ⁇ m.
- the powder coating according to the invention was stable in storage and transport and did not tend to cake. Its fluidity and application properties were excellent. It supplied smooth, high-gloss, scratch-resistant, flexible, hard and chemical-resistant clear coats with excellent adhesion properties.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10126652 | 2001-06-01 | ||
| DE10126652A DE10126652A1 (de) | 2001-06-01 | 2001-06-01 | Pulverlacke, Verfahren zu ihrer Herstellung und ihre Verwendung |
| PCT/EP2002/005703 WO2002098995A1 (de) | 2001-06-01 | 2002-05-24 | Pulverlacke, verfahren zu ihrer herstellung und ihre verwendung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1397442A1 true EP1397442A1 (de) | 2004-03-17 |
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| EP02740647A Withdrawn EP1397442A1 (de) | 2001-06-01 | 2002-05-24 | Pulverlacke, verfahren zu ihrer herstellung und ihre verwendung |
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| US (1) | US7449516B2 (de) |
| EP (1) | EP1397442A1 (de) |
| JP (1) | JP2004532343A (de) |
| CA (1) | CA2443994C (de) |
| DE (1) | DE10126652A1 (de) |
| WO (1) | WO2002098995A1 (de) |
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| DE10126649A1 (de) * | 2001-06-01 | 2002-12-12 | Basf Coatings Ag | Kontinuierliches Verfahren zur Herstellung von Pulverlacksuspensionen (Pulverslurries) und Pulverlacken |
| DE10126653A1 (de) | 2001-06-01 | 2002-12-12 | Basf Coatings Ag | Pigmentierte Pulverlacksuspersionen (pigmentierte Pulverslurries), Verfahren zu ihrer Herstellung und ihre Verwendung |
| MXPA05003691A (es) | 2002-10-07 | 2005-11-17 | James Hardie Int Finance Bv | Material mixto de fibrocemento de densidad media durable. |
| US7998571B2 (en) * | 2004-07-09 | 2011-08-16 | James Hardie Technology Limited | Composite cement article incorporating a powder coating and methods of making same |
| EP1841716B1 (de) * | 2004-11-02 | 2009-03-04 | Valspar Sourcing, Inc. | Faserzementprodukte |
| US7910022B2 (en) | 2006-09-15 | 2011-03-22 | Performance Indicator, Llc | Phosphorescent compositions for identification |
| AU2005319365B2 (en) | 2004-12-20 | 2011-02-03 | Performance Indicator L.L.C. | High-intensity, persistent photoluminescent formulations and objects, and methods for creating the same |
| US20060182975A1 (en) * | 2005-02-17 | 2006-08-17 | Reichhold, Inc. | Thermoset polymer substrates |
| DE102005047609A1 (de) * | 2005-10-05 | 2007-04-12 | Giesecke & Devrient Gmbh | Echtheitssicherung von Wertdokumenten mittels Merkmalsstoffen |
| WO2007059516A1 (en) | 2005-11-15 | 2007-05-24 | Valspar Sourcing, Inc. | Crush resistant latex topcoat composition for fiber cement substrates |
| US8343570B2 (en) * | 2005-11-17 | 2013-01-01 | Dcc Ip | Stabilizers for thermosetting powder coating compositions |
| US9783622B2 (en) | 2006-01-31 | 2017-10-10 | Axalta Coating Systems Ip Co., Llc | Coating system for cement composite articles |
| CN101374787B (zh) | 2006-01-31 | 2013-12-11 | 威士伯采购公司 | 涂布水泥纤维板制品的方法 |
| EP1979426A1 (de) | 2006-01-31 | 2008-10-15 | Valspar Sourcing, Inc. | Beschichtungssystem für zementverbundartikel |
| CA2636435C (en) | 2006-01-31 | 2013-10-22 | Valspar Sourcing, Inc. | Coating system for cement composite articles |
| EP2361955B1 (de) | 2006-05-19 | 2014-12-17 | Valspar Sourcing, Inc. | Beschichtungssystem für Zementverbundwerkstofferzeugnisse |
| DE602007012700D1 (de) | 2006-06-02 | 2011-04-07 | Valspar Sourcing Inc | Wässrige hochleistungsbeschichtungszusammensetzungen |
| US7812090B2 (en) * | 2006-06-02 | 2010-10-12 | Valspar Sourcing, Inc. | High performance aqueous coating compositions |
| ES2716987T3 (es) | 2006-07-07 | 2019-06-18 | Swimc Llc | Sistemas de recubrimiento para artículos composite de cemento |
| US7547894B2 (en) | 2006-09-15 | 2009-06-16 | Performance Indicator, L.L.C. | Phosphorescent compositions and methods for identification using the same |
| MX2008002220A (es) | 2007-02-16 | 2009-02-25 | Valspar Sourcing Inc | Tratamiento para articulos compuestos de cemento. |
| CN101772472B (zh) * | 2007-08-01 | 2016-04-20 | 威士伯采购公司 | 用于水泥复合制品的涂层体系 |
| US8039193B2 (en) | 2007-09-13 | 2011-10-18 | Performance Indicator Llc | Tissue markings and methods for reversibly marking tissue employing the same |
| US7842128B2 (en) | 2007-09-13 | 2010-11-30 | Performance Indicatior LLC | Tissue marking compositions |
| DE202008000136U1 (de) * | 2008-01-03 | 2008-04-24 | Röhr + Stolberg Gmbh | Metallblech und dessen Verwendung |
| US20090300919A1 (en) * | 2008-06-09 | 2009-12-10 | Boulanger Peter D | Method of manufacturing a vehicle frame assembly including an integrated hitch having a coating |
| MX2011001736A (es) | 2008-08-15 | 2011-05-10 | Valspar Sourcing Inc | Composicion de recubrimiento de sustrato cementoso de auto-grabado. |
| AU2009316285A1 (en) | 2008-11-24 | 2010-05-27 | Valspar Sourcing, Inc. | Coating system for cement composite articles |
| EP2539412A4 (de) | 2010-02-24 | 2013-07-31 | Basf Se | Wässriges reinigungsmittel sowie pfropfcopolymere und ihre verwendung in einem verfahren zur reinigung gemusterter und unstrukturierter metalloberflächen |
| US20170157582A1 (en) * | 2014-07-02 | 2017-06-08 | Corning Incorporated | Spray drying mixed batch material for plasma melting |
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| GB1364244A (en) | 1970-10-21 | 1974-08-21 | Ici Ltd | Pigmented polymer coating compositions |
| US4056653A (en) | 1973-11-28 | 1977-11-01 | E. I. Du Pont De Nemours And Company | Spherical-shaped particles from ionomer resins and ethylene/carboxylic acid copolymer resins |
| GB9611118D0 (en) * | 1996-05-29 | 1996-07-31 | Ici Plc | Dispersions |
| DE19652813A1 (de) | 1996-12-18 | 1998-06-25 | Basf Coatings Ag | Wäßrige Pulverlack-Dispersion |
| US5928577A (en) | 1997-04-08 | 1999-07-27 | E. I. Du Pont De Nemours And Company | Spherical particles of a coating composition |
| DE19930067A1 (de) | 1999-06-30 | 2001-01-11 | Basf Coatings Ag | Beschichtungsstoff und seine Verwendung zur Herstellung von Füllerschichten und Steinschlagschutzgrundierungen |
| DE19930664A1 (de) | 1999-07-02 | 2001-01-11 | Basf Coatings Ag | Klarlack und seine Verwendung zur Herstellung von Klarlackierungen und farb- und/oder effektgebenden Mehrschichtlackierungen |
| DE19930665A1 (de) | 1999-07-02 | 2001-01-11 | Basf Coatings Ag | Basislack und seine Verwendung zur Herstellung von farb- und/oder effektgebenden Basislackierungen und Mehrschichtlackierung |
| DE10006673C1 (de) | 2000-02-15 | 2001-09-27 | Basf Coatings Ag | Wäßrige Pulverlackdispersionen (Pulverslurries) und Verfahren zu ihrer Herstellung |
| DE10018581C1 (de) | 2000-04-14 | 2002-02-21 | Basf Coatings Ag | Farb- und/oder effektgebende Lackierung mit Kombinationseffektschicht und deren Verwendung |
| DE10126653A1 (de) | 2001-06-01 | 2002-12-12 | Basf Coatings Ag | Pigmentierte Pulverlacksuspersionen (pigmentierte Pulverslurries), Verfahren zu ihrer Herstellung und ihre Verwendung |
-
2001
- 2001-06-01 DE DE10126652A patent/DE10126652A1/de not_active Withdrawn
-
2002
- 2002-05-24 JP JP2003502107A patent/JP2004532343A/ja active Pending
- 2002-05-24 US US10/476,092 patent/US7449516B2/en not_active Expired - Fee Related
- 2002-05-24 EP EP02740647A patent/EP1397442A1/de not_active Withdrawn
- 2002-05-24 CA CA002443994A patent/CA2443994C/en not_active Expired - Fee Related
- 2002-05-24 WO PCT/EP2002/005703 patent/WO2002098995A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
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| See references of WO02098995A1 * |
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| Publication number | Publication date |
|---|---|
| US7449516B2 (en) | 2008-11-11 |
| CA2443994A1 (en) | 2002-12-12 |
| DE10126652A1 (de) | 2002-12-12 |
| US20040082715A1 (en) | 2004-04-29 |
| CA2443994C (en) | 2008-04-29 |
| JP2004532343A (ja) | 2004-10-21 |
| WO2002098995A1 (de) | 2002-12-12 |
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