CA1134727A - Non-chromate conversion coatings - Google Patents

Non-chromate conversion coatings

Info

Publication number: CA1134727A
Authority: CA; Canada
Prior art keywords: solution; alkylene; thioureas; alkyl; organonitrogen
Prior art date: 1978-10-30
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.): Expired

Application number

CA000336962A

Other languages

English (en)

French (fr)

Inventor

Ajay M. Bengali

Richard F. Zuendt

John L.H. Allan

Philip D. Readio

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Dart Industries Inc

Original Assignee

Dart Industries Inc

Priority date (The priority date 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 date listed.)

1978-10-30

Filing date

1979-10-04

Publication date

1982-11-02

1979-06-04 Priority claimed from US06/045,160 external-priority patent/US4222779A/en

1979-10-04 Application filed by Dart Industries Inc filed Critical Dart Industries Inc

1982-11-02 Application granted granted Critical

1982-11-02 Publication of CA1134727A publication Critical patent/CA1134727A/en

Status Expired legal-status Critical Current

Links

238000007744 chromate conversion coating Methods 0.000 title description 6
239000000654 additive Substances 0.000 claims abstract description 22
238000005260 corrosion Methods 0.000 claims abstract description 21
230000007797 corrosion Effects 0.000 claims abstract description 21
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 20
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 11
150000001875 compounds Chemical class 0.000 claims abstract description 11
229910052725 zinc Inorganic materials 0.000 claims abstract description 11
239000011701 zinc Substances 0.000 claims abstract description 11
229910052751 metal Inorganic materials 0.000 claims abstract description 10
239000002184 metal Substances 0.000 claims abstract description 10
239000000243 solution Substances 0.000 claims description 69
238000000034 method Methods 0.000 claims description 33
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 27
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 27
UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 26
238000007739 conversion coating Methods 0.000 claims description 24
235000013877 carbamide Nutrition 0.000 claims description 21
125000002947 alkylene group Chemical group 0.000 claims description 19
230000000996 additive effect Effects 0.000 claims description 15
229910052681 coesite Inorganic materials 0.000 claims description 14
229910052906 cristobalite Inorganic materials 0.000 claims description 14
239000000377 silicon dioxide Substances 0.000 claims description 14
235000012239 silicon dioxide Nutrition 0.000 claims description 14
229910052682 stishovite Inorganic materials 0.000 claims description 14
150000003585 thioureas Chemical class 0.000 claims description 14
229910052905 tridymite Inorganic materials 0.000 claims description 14
150000003672 ureas Chemical class 0.000 claims description 14
229910052757 nitrogen Inorganic materials 0.000 claims description 13
-1 alkylene phosphonic acid Chemical compound 0.000 claims description 11
150000002903 organophosphorus compounds Chemical class 0.000 claims description 10
125000004122 cyclic group Chemical class 0.000 claims description 8
125000000217 alkyl group Chemical group 0.000 claims description 7
239000004202 carbamide Substances 0.000 claims description 7
YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 claims description 7
DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims description 7
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 6
239000000203 mixture Substances 0.000 claims description 6
229910052708 sodium Inorganic materials 0.000 claims description 6
239000011734 sodium Substances 0.000 claims description 6
125000004432 carbon atom Chemical group C* 0.000 claims description 5
239000004115 Sodium Silicate Substances 0.000 claims description 4
230000015572 biosynthetic process Effects 0.000 claims description 4
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
229910052911 sodium silicate Inorganic materials 0.000 claims description 4
235000011149 sulphuric acid Nutrition 0.000 claims description 4
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
239000004111 Potassium silicate Substances 0.000 claims description 3
239000007864 aqueous solution Substances 0.000 claims description 3
BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 3
DKPHLYCEFBDQKM-UHFFFAOYSA-H hexapotassium;1-phosphonato-n,n-bis(phosphonatomethyl)methanamine Chemical compound [K+].[K+].[K+].[K+].[K+].[K+].[O-]P([O-])(=O)CN(CP([O-])([O-])=O)CP([O-])([O-])=O DKPHLYCEFBDQKM-UHFFFAOYSA-H 0.000 claims description 3
229910052739 hydrogen Inorganic materials 0.000 claims description 3
239000001257 hydrogen Substances 0.000 claims description 3
125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
229910052700 potassium Inorganic materials 0.000 claims description 3
239000011591 potassium Substances 0.000 claims description 3
NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
229910052913 potassium silicate Inorganic materials 0.000 claims description 3
235000019353 potassium silicate Nutrition 0.000 claims description 3
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
229910001297 Zn alloy Inorganic materials 0.000 claims description 2
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
239000010949 copper Substances 0.000 claims description 2
XQRLCLUYWUNEEH-UHFFFAOYSA-N diphosphonic acid Chemical compound OP(=O)OP(O)=O XQRLCLUYWUNEEH-UHFFFAOYSA-N 0.000 claims description 2
239000004332 silver Substances 0.000 claims description 2
125000004178 (C1-C4) alkyl group Chemical group 0.000 claims 1
229910001316 Ag alloy Inorganic materials 0.000 claims 1
229910000838 Al alloy Inorganic materials 0.000 claims 1
229910000925 Cd alloy Inorganic materials 0.000 claims 1
229910000881 Cu alloy Inorganic materials 0.000 claims 1
DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
229910000861 Mg alloy Inorganic materials 0.000 claims 1
125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
239000011777 magnesium Substances 0.000 claims 1
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 19
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract description 11
238000006243 chemical reaction Methods 0.000 abstract description 8
231100000252 nontoxic Toxicity 0.000 abstract description 2
230000003000 nontoxic effect Effects 0.000 abstract description 2
238000000576 coating method Methods 0.000 description 18
238000012360 testing method Methods 0.000 description 13
239000011248 coating agent Substances 0.000 description 11
239000002253 acid Substances 0.000 description 8
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
229910052804 chromium Inorganic materials 0.000 description 5
239000011651 chromium Substances 0.000 description 5
JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical class [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 5
238000001035 drying Methods 0.000 description 4
125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 4
239000002699 waste material Substances 0.000 description 4
ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
229910000831 Steel Inorganic materials 0.000 description 3
239000010959 steel Substances 0.000 description 3
239000003643 water by type Substances 0.000 description 3
AVQQQNCBBIEMEU-UHFFFAOYSA-N 1,1,3,3-tetramethylurea Chemical compound CN(C)C(=O)N(C)C AVQQQNCBBIEMEU-UHFFFAOYSA-N 0.000 description 2
235000008733 Citrus aurantifolia Nutrition 0.000 description 2
RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 2
PDQAZBWRQCGBEV-UHFFFAOYSA-N Ethylenethiourea Chemical compound S=C1NCCN1 PDQAZBWRQCGBEV-UHFFFAOYSA-N 0.000 description 2
235000011941 Tilia x europaea Nutrition 0.000 description 2
239000003929 acidic solution Substances 0.000 description 2
229910052793 cadmium Inorganic materials 0.000 description 2
ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
239000000356 contaminant Substances 0.000 description 2
230000001627 detrimental effect Effects 0.000 description 2
NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
238000007654 immersion Methods 0.000 description 2
239000004571 lime Substances 0.000 description 2
238000012544 monitoring process Methods 0.000 description 2
238000006386 neutralization reaction Methods 0.000 description 2
239000002244 precipitate Substances 0.000 description 2
239000010802 sludge Substances 0.000 description 2
238000004448 titration Methods 0.000 description 2
231100000331 toxic Toxicity 0.000 description 2
230000002588 toxic effect Effects 0.000 description 2
OVRQXQSDQWOJIL-UHFFFAOYSA-N 1,1-dibutylthiourea Chemical compound CCCCN(C(N)=S)CCCC OVRQXQSDQWOJIL-UHFFFAOYSA-N 0.000 description 1
VJDVTCMMFZCKKG-UHFFFAOYSA-N 1,1-ditert-butylthiourea Chemical compound CC(C)(C)N(C(N)=S)C(C)(C)C VJDVTCMMFZCKKG-UHFFFAOYSA-N 0.000 description 1
LTMHEXFMSAISLN-UHFFFAOYSA-N 1,3-ditert-butylthiourea Chemical compound CC(C)(C)NC(=S)NC(C)(C)C LTMHEXFMSAISLN-UHFFFAOYSA-N 0.000 description 1
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
241001502381 Budorcas taxicolor Species 0.000 description 1
XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
KFFQABQEJATQAT-UHFFFAOYSA-N N,N'-dibutylthiourea Chemical compound CCCCNC(=S)NCCCC KFFQABQEJATQAT-UHFFFAOYSA-N 0.000 description 1
238000013494 PH determination Methods 0.000 description 1
OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
MNOILHPDHOHILI-UHFFFAOYSA-N Tetramethylthiourea Chemical compound CN(C)C(=S)N(C)C MNOILHPDHOHILI-UHFFFAOYSA-N 0.000 description 1
GWBWGPRZOYDADH-UHFFFAOYSA-N [C].[Na] Chemical compound [C].[Na] GWBWGPRZOYDADH-UHFFFAOYSA-N 0.000 description 1
238000005299 abrasion Methods 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
230000032683 aging Effects 0.000 description 1
238000013019 agitation Methods 0.000 description 1
239000003513 alkali Substances 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
239000011609 ammonium molybdate Substances 0.000 description 1
229940010552 ammonium molybdate Drugs 0.000 description 1
235000018660 ammonium molybdate Nutrition 0.000 description 1
BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
229910052921 ammonium sulfate Inorganic materials 0.000 description 1
235000011130 ammonium sulphate Nutrition 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
239000006227 byproduct Substances 0.000 description 1
238000004210 cathodic protection Methods 0.000 description 1
231100000481 chemical toxicant Toxicity 0.000 description 1
VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
238000010981 drying operation Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000001914 filtration Methods 0.000 description 1
IAPICTXEJNEPFX-UHFFFAOYSA-N hydrogen peroxide silicic acid sulfuric acid Chemical compound [Si](O)(O)(O)O.OO.S(O)(O)(=O)=O IAPICTXEJNEPFX-UHFFFAOYSA-N 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
239000007788 liquid Substances 0.000 description 1
229910052744 lithium Inorganic materials 0.000 description 1
239000002932 luster Substances 0.000 description 1
229910021645 metal ion Inorganic materials 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
238000002156 mixing Methods 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
150000002897 organic nitrogen compounds Chemical class 0.000 description 1
150000002978 peroxides Chemical class 0.000 description 1
150000003009 phosphonic acids Chemical class 0.000 description 1
229910052698 phosphorus Inorganic materials 0.000 description 1
239000011574 phosphorus Substances 0.000 description 1
238000007747 plating Methods 0.000 description 1
238000005498 polishing Methods 0.000 description 1
NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 description 1
159000000001 potassium salts Chemical class 0.000 description 1
238000001556 precipitation Methods 0.000 description 1
125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
238000006479 redox reaction Methods 0.000 description 1
230000008929 regeneration Effects 0.000 description 1
238000011069 regeneration method Methods 0.000 description 1
238000010405 reoxidation reaction Methods 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
238000000926 separation method Methods 0.000 description 1
150000004760 silicates Chemical class 0.000 description 1
229910052709 silver Inorganic materials 0.000 description 1
235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
239000007921 spray Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1
239000003440 toxic substance Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/53—Treatment of zinc or alloys based thereon
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates

Landscapes

Chemical & Material Sciences (AREA)
General Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Chemical Treatment Of Metals (AREA)

CA000336962A 1978-10-30 1979-10-04 Non-chromate conversion coatings Expired CA1134727A (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US95581278A	1978-10-30	1978-10-30
US955,812		1978-10-30
US45,160		1979-06-04
US06/045,160 US4222779A (en)	1979-06-04	1979-06-04	Non-chromate conversion coatings

Publications (1)

Publication Number	Publication Date
CA1134727A true CA1134727A (en)	1982-11-02

Family

ID=26722443

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000336962A Expired CA1134727A (en)	1978-10-30	1979-10-04	Non-chromate conversion coatings

Country Status (6)

Country	Link
CA (1)	CA1134727A (it)
DE (1)	DE2943833A1 (it)
FR (1)	FR2440412A1 (it)
GB (1)	GB2032963B (it)
IT (1)	IT1124813B (it)
NL (1)	NL7907961A (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2249320B (en) *	1987-11-17	1992-07-15	Toyo Kohan Co Ltd	Metod for post-treatment of plated steel sheet for soldering
GB8906160D0 (en) *	1989-03-17	1989-05-04	Alcan Int Ltd	Surface preparation for aluminium
US5306526A (en) *	1992-04-02	1994-04-26	Ppg Industries, Inc.	Method of treating nonferrous metal surfaces by means of an acid activating agent and an organophosphate or organophosphonate and substrates treated by such method
JP3973323B2 (ja)	1998-08-13	2007-09-12	日本ペイント株式会社	硫黄含有化合物とリン含有化合物によるノンクロム処理剤
DE19905134A1 (de) *	1999-02-09	2000-09-28	Hillebrand Walter Gmbh & Co Kg	Passivierungsverfahren
WO2006079643A1 (de)	2005-01-28	2006-08-03	Basf Aktiengesellschaft	Korrosionsschutzbeschichtungen enthaltend thioamidgruppen
WO2006079627A1 (de)	2005-01-28	2006-08-03	Basf Aktiengesellschaft	Verfahren zum aufbringen von korrosionsschutzschichten umfassend thioamide auf metallische oberflächen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5210834A (en) *	1975-06-02	1977-01-27	Nippon Packaging Kk	Surface treatment of metal

1979
- 1979-09-20 GB GB7932624A patent/GB2032963B/en not_active Expired
- 1979-10-04 CA CA000336962A patent/CA1134727A/en not_active Expired
- 1979-10-29 FR FR7926747A patent/FR2440412A1/fr active Granted
- 1979-10-29 IT IT26888/79A patent/IT1124813B/it active
- 1979-10-30 NL NL7907961A patent/NL7907961A/nl not_active Application Discontinuation
- 1979-10-30 DE DE19792943833 patent/DE2943833A1/de not_active Withdrawn

Also Published As

Publication number	Publication date
FR2440412A1 (fr)	1980-05-30
NL7907961A (nl)	1980-05-02
DE2943833A1 (de)	1980-05-08
FR2440412B1 (it)	1982-11-26
GB2032963A (en)	1980-05-14
GB2032963B (en)	1982-09-29
IT7926888A0 (it)	1979-10-29
IT1124813B (it)	1986-05-14

Legal Events

Date	Code	Title	Description
1999-11-02	MKEX	Expiry

Publication	Publication Date	Title
US4222779A (en)	1980-09-16	Non-chromate conversion coatings
KR910003722B1 (ko)	1991-06-08	인산염 코우팅 조성물과 아연-니켈 인산염 코우팅의 적용 방법
JP2806531B2 (ja)	1998-09-30	鉄又は鉄合金材料の表面処理用リン酸亜鉛系水溶液及び処理方法
US6755917B2 (en)	2004-06-29	Process and solution for providing a conversion coating on a metallic surface II
RU2510431C2 (ru)	2014-03-27	Жидкость для химической конверсионной обработки металлического материала и способ обработки
KR100197145B1 (ko)	1999-06-15	금속표면의 인산아연 처리방법
WO2001071058A1 (en)	2001-09-27	Process and solution for providing a conversion coating on a metallic surface i
EP0034040A1 (en)	1981-08-19	Method of producing conversion coatings
JPS63190178A (ja)	1988-08-05	リン酸塩皮膜の形成方法
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