EP0811038A1 - Composition comprenant un fluoroelastomere et un polyamide thermoplastique et film obtenu - Google Patents
Composition comprenant un fluoroelastomere et un polyamide thermoplastique et film obtenuInfo
- Publication number
- EP0811038A1 EP0811038A1 EP96943166A EP96943166A EP0811038A1 EP 0811038 A1 EP0811038 A1 EP 0811038A1 EP 96943166 A EP96943166 A EP 96943166A EP 96943166 A EP96943166 A EP 96943166A EP 0811038 A1 EP0811038 A1 EP 0811038A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blocks
- polyamide
- fluoroelastomer
- extruder
- film
- 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- Withdrawn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
- 239000000203 mixture Substances 0.000 title claims abstract description 48
- 229920001973 fluoroelastomer Polymers 0.000 title claims abstract description 21
- 229920006345 thermoplastic polyamide Polymers 0.000 title claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000004952 Polyamide Substances 0.000 claims description 30
- 229920002647 polyamide Polymers 0.000 claims description 30
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 26
- 229920000570 polyether Polymers 0.000 claims description 26
- 229920000642 polymer Polymers 0.000 claims description 26
- 229920003023 plastic Polymers 0.000 claims description 20
- 239000004033 plastic Substances 0.000 claims description 20
- 229920001577 copolymer Polymers 0.000 claims description 17
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 15
- 239000004698 Polyethylene Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 230000009466 transformation Effects 0.000 claims description 7
- 229920001519 homopolymer Polymers 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 229920006255 plastic film Polymers 0.000 claims description 2
- 239000004594 Masterbatch (MB) Substances 0.000 abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 229920006370 Kynar Polymers 0.000 description 10
- 239000002202 Polyethylene glycol Substances 0.000 description 8
- 238000010101 extrusion blow moulding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 229920001223 polyethylene glycol Polymers 0.000 description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 7
- 239000005977 Ethylene Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 229920002614 Polyether block amide Polymers 0.000 description 6
- 239000003963 antioxidant agent Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 150000008064 anhydrides Chemical class 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 229920001451 polypropylene glycol Polymers 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 150000004985 diamines Chemical class 0.000 description 3
- 150000001991 dicarboxylic acids Chemical class 0.000 description 3
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 150000002924 oxiranes Chemical class 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- WMCQWXZMVIETAO-UHFFFAOYSA-N 2-(2-carboxyethyl)-4-methyl-5-propylfuran-3-carboxylic acid Chemical compound CCCC=1OC(CCC(O)=O)=C(C(O)=O)C=1C WMCQWXZMVIETAO-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002981 blocking agent Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000004427 diamine group Chemical group 0.000 description 2
- 238000000375 direct analysis in real time Methods 0.000 description 2
- 238000012063 dual-affinity re-targeting Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 235000019589 hardness Nutrition 0.000 description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 2
- 150000003951 lactams Chemical class 0.000 description 2
- CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical compound OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical group CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 description 1
- 101500021168 Aplysia californica Myomodulin-F Proteins 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- WXCZUWHSJWOTRV-UHFFFAOYSA-N but-1-ene;ethene Chemical compound C=C.CCC=C WXCZUWHSJWOTRV-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007278 cyanoethylation reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 1
- 229940100630 metacresol Drugs 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 229920006146 polyetheresteramide block copolymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
Definitions
- the subject of the present invention is a composition comprising a fluoroelastomer and a thermoplastic polyamide. Intended to improve the processing of plastics.
- Another subject of the invention relates to a composition based on hydrocarbon polymers comprising a fluoroelastomer and a thermoplastic polyamide.
- the present invention further relates to a homogeneous thermoplastic film having improved optical and mechanical properties and comprising modifying agents such as a fluoroelastomer and a thermoplastic polyamide. It is generally accepted that during the extrusion of a plastic material, flow irregularities appear at the outlet of the die when a critical shear rate is exceeded. Below, the extrudates are smooth so that * above the critical rate is observed for surface defects.
- melt fracture defects come in several forms.
- the films obtained by extrusion blow-molding lose their transparency and their gloss.
- homogeneity defects with smooth areas in a rough surface appear. These defects significantly reduce the optical and mechanical properties of the film. The same phenomena can be observed on extruded rods. When the surface of the rods loses their shine and becomes dull and rough, it is often compared to an "orange peel".
- composition which improves the transformation of plastics, during their processing by extrusion, without however having the drawbacks set out above.
- This composition comprising a fluoroelastomer and a thermoplastic polyamide, forms the subject of the present invention
- the present invention not only makes it possible to move the “melt fractures” towards high shear rates but also to obtain homogeneous films with a reduced duration of setting in operation of the extruder.
- the present invention therefore provides a composition of modifying agents for improving the transformation of plastics, characterized in that it comprises
- Thermoplastic polyamides are polymers with polyamide blocks and polyether blocks
- Polymers with polyamide blocks and polyether blocks result from the copolycondensation of polyamide blocks with reactive ends with polyether blocks with reactive ends, such as, inter alia •
- polyamide sequences with dicarboxylic chain ends originate, for example, from the condensation of alpha-omega aminocarboxylic acids of lactams or of dicarboxylic acids and diamines in the presence of a chain-limiting dicarboxylic acid.
- the polyamide blocks are advantageously made of polyamide- 12_or in polyamide- 6
- the number-average molar mass Mn of the polyamide blocks is between 300 and 15,000 and preferably between 600 and 5,000
- the mass Mn of the polyether blocks is between 100 and 6,000 and preferably between 200 and 3,000
- Polymers with polyamide blocks and polyether blocks can also comprise randomly distributed units. These polymers can be prepared by the simultaneous reaction of the polyether and of the precursors of the polyamide blocks.
- polyetherdiol, a lactam (or an alpha-omega amino acid) and a chain-limiting diacid can be reacted in the presence of a little water.
- a polymer is obtained which essentially has polyether blocks, polyamide blocks of very variable length, but also the different reactants which reacted randomly which are distributed statistically along the polymer chain
- polymers containing polyamide blocks and polyether blocks whether they originate from the copolycondensation of polyamide and polyether blocks prepared beforehand or from a reaction in one step, exhibit, for example, shore D hardnesses which may be between 20 and 75 and advantageously between 30 and 70 and an intrinsic viscosity between 0.8 and 2.5 measured in metacresol at 250 ° C for an initial concentration of 0.8 g / 100 ml
- polyether blocks are derived from polyethylene glycol, polyoxypropylene glycol or polyoxytetramethylene glycol, they are either used as such and copolycondensed with polyamide blocks having carboxylic ends, or they are aminated to be transformed into polyether diamines and condensed with polyamide blocks to carboxylic ends They can also be mixed with polyamide precursors and a chain limiter to make polymers with polyamide blocks and polyether blocks having randomly distributed units Polymers with polyamide and polyether blocks are described in US Patents 4,331,786, US 4,115,475, US 4,195,015, US 4,839,441, US 4,864,014, US 4,230,838 and US 4,332,920.
- the polyether may for example be a polyethylene glycol (PEG), a polypropylene glycol (PPG) or a polytetra methylene glycol (PTMG).
- PEG polyethylene glycol
- PPG polypropylene glycol
- PTMG polytetra methylene glycol
- the latter is also called polytetrahydrofuran (PTHF).
- polyether blocks are in the polymer chain with polyamide blocks and polyether blocks in the form of diols or diamines, they are called for simplification PEG blocks or PPG blocks or even PTMG blocks. It would not be departing from the scope of the invention if the polyether blocks contained different units such as units derived from ethylene glycol, propylene glycol or even tetramethylene glycol.
- the polymer with polyamide blocks and polyether blocks comprises a single type of polyamide block and a single type of polyether blocks.
- polymers with PA-12 blocks and PEG blocks are used, polymers with PA-12 blocks and PTMG blocks and polymers with PA-6 blocks and blocks.
- the polymer with polyamide blocks and polyether blocks is such that the polyamide which is in the form of blocks and that which is optionally distributed statistically in the chain, represents 50% by weight or more of the polymer with polyamide blocks and polyether blocks.
- the amount of polyamide and the amount of polyether are in the ratio (polyamide / polyether) 2/3 to 3/1 and preferably close to 1/1.
- polymer containing polyamide blocks and polyether blocks having hydrophilic properties is particularly preferred, that is to say that having PEG blocks or whose polyether blocks have a majority of units derived from ethylene oxide.
- films of the invention are antistatic.
- the fluoroelastomers can be in the form of powder or granules. They are generally homopolymers or copolymers of fluorinated olefins whose fluorine / carbon ratio is greater than or equal to 0.5. A fluorine / carbon atom ratio close to 1 is particularly preferred.
- polyvinylidene fluoride or polyvinyl fluoride.
- the advantageously chosen copolymers are derived from vinylidene fluoride and one or more fluorinated olefins.
- fluoroelastomers are copolymers of vinylidene fluoride and propylene hexafluoride.
- the copolymers containing more than 50 mol% of vinylidene fluoride are used
- the masterbatch advantageously consists of a plastic material of the same type as that which it is desired to modify, and the fluoroelastomer and the polyamide are incorporated therein.
- plastic material of the same type means materials comprising essentially the same monomers in similar proportions. The polymers whose viscosity is close to that of the plastic material to be extruded are particularly preferred.
- masterbatches can also contain fillers, in particular antioxidants (in the following, unless indicated otherwise, the% are by weight).
- the dilution of the modifying agent compositions is such that the content of fluoroelastomer in these masterbatches is generally greater than
- thermoplastic polyamide 0.1% and preferably between 0.3% and 5% by weight and the content of thermoplastic polyamide is generally greater than 0.1% and preferably
- These masterbatches can be used to pre-treat the output die of the extruders or mix them with the plastics to be transformed before or during the processing.
- compositions comprising a fluoroelastomer, a thermoplastic polyamide and the plastic to be extruded. They can also contain anti-blocking agents, for example silica, pigments such as titanium dioxide and stearates.
- plastic material polymers comprising olefin units such as for example ethylene, propylene, butene-1 units, etc.
- olefin units such as for example ethylene, propylene, butene-1 units, etc.
- Mixtures of two or more of these polyolefins can be used.
- LDPE low density copolymers
- LLDPE better still linear low density copolymers
- the amount of fluoroelastomer present in the final composition can be greater than 10 ppm and preferably between 100 ppm and 1000 ppm.
- thermoplastic polyamide present in the final composition can vary within wide limits. It is generally between 10 ppm and 5% and preferably between 100 ppm and 1%.
- the final compositions according to our invention can be transformed by any known means, for example injection, extrusion, extrusion blow molding of hollow bodies and extrusion blow molding of sheath
- Another object of the invention relates to a thermoplastic film obtained by extrusion blow molding of the final compositons described above.
- This homogeneous film Having improved optical and mechanical properties is characterized in that it comprises a fluoroelastomer and a thermoplastic polyamide. besides the advantage of being antistatic
- the film according to the invention can be obtained for a period of warm-up of the extruder of less than 2 hours, preferably for a period of less than or equal to one hour.
- KYNAR 2821 copolymer comprising 88% by weight of vinylidene difluoride and 12% by weight of propylene hexafluoride
- the masterbatches are obtained either by mechanical mixing of the various modifying agents, additives and polymers, or by mixing in a BUSS PR 46/70 1 1 mixer. In this case the temperature profile is 170 ° C - 195 ° C - 200 ° C and the die temperature is equal to 210 ° C.
- the masterbatches are then diluted in LDPE LL0209AA by simple mechanical mixing with the optional addition of additives to give the final compositions
- the modifiers in the final compositions were evaluated using two types of extruder a)
- the HAAKE U HAAKE RHEOLEX extruder has a screw diameter equal to 30 mm and an active screw length equal to 25 times its diameter.
- the compression ratio of the extruder is equal to 3.
- the diameter of the die is 3 mm and its length is equal to 3 times its diameter
- the angle at the inlet of the die is 180 °.
- the KAUFMAN extruder transforms the final compositions by extrusion blow molding of sheath.
- the characteristics of the extruder and of its die are given in table 1.
- the different zones of the extruder screw are presented in table 2.
- the temperature profile of the different zones recorded in table 3, is constant for all attempts.
- the optical and mechanical properties of the film obtained by sheath extrusion-blowing are then evaluated using the LUMAQUITAINE test and the DART TEST respectively.
- the LUMAQUITAINE test consists in forming, through a system of lenses, the image of the fixed slit of a collimator, illuminated by a light source This image is received on a window of transparent sinusoidal or "test pattern" associated with a photometer recorder A film test piece having a circular useful part of 20 mm in diameter is placed in a sample holder which can be rotated, located on the optical axis of the system between the collimator and the target, in a parallel beam of light
- the contrast factor making it possible to determine, for each number of waves, the attenuation due to the film is given by the following formula
- the DART TEST is a method consisting in determining the energy necessary for the impact rupture of a plastic film, under the effect of a punch of mass less than or equal to 300g falling in free fall from a height 66 cm The mass of the projectile is determined for which 50% of the test pieces
- the mass of the projectile is defined as the mass of the punch increased by the additional masses and the mass of the clamping collar of these masses
- the mass of the projectile is varied so as to obtain both broken test pieces and intact test pieces in the same group of 10 test pieces and with at least 3 different rupture rates between 0% and
- ⁇ W is the increase in mass used successively from one test to another (in grams)
- S is the sum of the percentages of ruptures for each mass of projectile (this sum includes the percentages corresponding to all the masses of projectile used from the mass corresponding to no rupture up to the mass W
- the antistatic properties of the film are evaluated by a method based on the ability of a surface to run off static charges. This method consists first of all in charging the film surface for a few seconds via a high voltage After cutting from the high-voltage source, note the half-discharge time, which is the time necessary to go from the maximum potential V max reached to half this value V max / 2 An antistatic material will more easily discharge the charges and therefore the half-discharge time will be shorter b) Conduct of the tests (i) Stabilization of the extruder with LDPE LL0209AA,
- a film width 500 mm
- a film thickness 50 ⁇ m
- a final composition is used containing only the plastic material (PEbdl LL0209AA) to be transformed.
- This final composition is transformed into a rod using the HAAKE RHEOLEX extruder.
- the parameters and samples were taken one hour after starting the extrusion at a screw rotation speed of 20 revolutions / min and at a die temperature equal to 215 ° C.
- a film is obtained by the extrusion blow molding of sheath using the KAUFMAN extruder.
- the appearance of the rods and film thus obtained is shown in Table 4.
- IRGANOX B 900 (antioxidant agent) 0.1% in the plastic material (PEbdl LL0209 AA) to be transformed.
- the final composition thus obtained contains:
- Example 3 A final composition is prepared in the same way as in Example 2 except that I add 2% of MMF15C from SCHULMANN containing about 15% of natural silica.
- a final composition is prepared in an identical manner to Example 3 except that 2% of MMF15C is replaced by 4% of MM CMPF 59080 of SYNTHECOLOR containing 2% of anti-slip agent ERUCAMIDE
- the final composition contains
- Example 2 The final composition of Example 2 is taken up again and its behavior as a function of time is studied during the extrusion blow molding process on the KAUFMAN extruder. The parameters noted and the appearance of the film obtained are shown in Table 5.
- Examples 6 to 8 were carried out on the KAUFMAN extruder.
- MM 29790 PG antioxidant (SANTONOX)
- a final composition is prepared from a masterbatch containing LDPE LL0209 AA (granules) 97.7% KYNAR 2821 2.0%
- PE polyethylene
- Example 7 The procedure is identical to Example 6 except that the masterbatch used additionally contains 4% of PEBAX M. The final composition contains
- PE polyethylene
- Example 7 The procedure is identical to that in Example 7 except that the masterbatch contains 8% of PEBAX M instead of 4%.
- the final composition contains PEbdl LL0209 AA 97.794%
- PE polyethylene
- the optical and mechanical properties of the film obtained, as a function of the operating time of the extruder, are shown in Tables 6 and 7 respectively.
- the PE polyethylene comes from the masterbatches MM F 15C and MM
- Tables 8 and 9 show that the film obtained by extrusion blow molding of a final composition comprising a fluoroelastomer and a thermoplastic polyamide is more homogeneous than a film obtained by transformation of a final composition comprising a fluoroelastomer alone.
- the antistatic character of the film obtained from the compositions of Examples 6 and 8 was evaluated according to the method described above.
- the half-discharge time of the film from Example 6 is 169 seconds
- a composition of LDPE comprising 400 ppm of KYNAR and 1600 ppm of PEBAX results in a film whose half-time charge reduced to 18 seconds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9515352 | 1995-12-22 | ||
| FR9515352 | 1995-12-22 | ||
| PCT/FR1996/002050 WO1997023570A1 (fr) | 1995-12-22 | 1996-12-20 | Composition comprenant un fluoroelastomere et un polyamide thermoplastique et film obtenu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0811038A1 true EP0811038A1 (fr) | 1997-12-10 |
Family
ID=9485853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96943166A Withdrawn EP0811038A1 (fr) | 1995-12-22 | 1996-12-20 | Composition comprenant un fluoroelastomere et un polyamide thermoplastique et film obtenu |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5986005A (fr) |
| EP (1) | EP0811038A1 (fr) |
| JP (1) | JPH11501083A (fr) |
| KR (1) | KR100312055B1 (fr) |
| CN (1) | CN1102616C (fr) |
| AU (1) | AU1198597A (fr) |
| CA (1) | CA2211806A1 (fr) |
| WO (1) | WO1997023570A1 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7353756B2 (en) | 2002-04-10 | 2008-04-08 | Accutec Usa | Lead free reduced ricochet limited penetration projectile |
| MX2023015364A (es) | 2021-08-12 | 2024-02-21 | Nova Chem Int Sa | Adyuvantes de procesamiento de polimeros a base de copolimeros de bloques. |
| CN119365321A (zh) | 2022-06-10 | 2025-01-24 | 诺瓦化学品(国际)股份有限公司 | 不含氟的聚合物加工助剂 |
| WO2023241955A1 (fr) | 2022-06-15 | 2023-12-21 | Nova Chemicals (International) S.A. | Auxiliaires de traitement des polymères à base de copolymères séquencés |
| JP2025533218A (ja) | 2022-10-11 | 2025-10-03 | ノバ ケミカルズ(インターナショナル)ソシエテ アノニム | ポリマー加工助剤としての金属塩 |
| EP4431563A1 (fr) | 2023-03-13 | 2024-09-18 | Arkema France | Auxiliaires de traitement de polymères pour extrusion de polymères |
| WO2025003837A1 (fr) | 2023-06-26 | 2025-01-02 | Nova Chemicals (International) S.A. | Polymères polaires utilisés en tant qu'auxiliaires de traitement dans du polyéthylène |
| CN121487997A (zh) | 2023-07-20 | 2026-02-06 | 诺瓦化学品(国际)股份有限公司 | 用于在含再循环聚乙烯的组合物的挤出中减轻模唇积料的非氟化聚合物加工助剂 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3334157A (en) * | 1963-12-03 | 1967-08-01 | Union Carbide Canada Ltd | Polyethylene blends containing trace amounts of polytetrafluoroethylene |
| LU64603A1 (fr) * | 1972-01-18 | 1973-08-03 | ||
| FR2273021B1 (fr) * | 1974-05-31 | 1977-03-11 | Ato Chimie | |
| FR2318185A1 (fr) * | 1975-07-17 | 1977-02-11 | Ato Chimie | Procede de preparation de copolyesteramides comme produits a mouler |
| US4195015A (en) * | 1976-07-30 | 1980-03-25 | Ato Chimie | Heat and aging stable copolyetheresteramides and method of manufacturing same |
| US4230836A (en) * | 1979-04-26 | 1980-10-28 | Mobil Oil Corporation | Chemically cross-linked poly(p-methylstyrene) |
| FR2466478B2 (fr) * | 1979-10-02 | 1986-03-14 | Ato Chimie | Procede de preparation de copolyetheresteramides aliphatiques elastomeres |
| FR2611726B1 (fr) * | 1987-02-26 | 1989-06-16 | Atochem | Polyesteramides et polyetherthioether-ester-amides - leur procede de fabrication |
| FR2611727B1 (fr) * | 1987-02-26 | 1989-06-16 | Atochem | Polyesteramides et polyetheresteramides - leur procede de fabrication |
| US4983677A (en) * | 1988-04-15 | 1991-01-08 | Minnesota Mining And Manufacturing Company | Extrudable thermoplastic hydrocarbon polymer composition |
| US5015693A (en) * | 1988-04-15 | 1991-05-14 | Minnesota Mining And Manufacturing Company | Extrudable thermoplastic hydrocarbon polymer composition |
| US4863983A (en) * | 1988-04-15 | 1989-09-05 | Minnesota Mining And Manufacturing Company | Extrudable thermoplastic hydrocarbon polymer composition |
| US4855360A (en) * | 1988-04-15 | 1989-08-08 | Minnesota Mining And Manufacturing Company | Extrudable thermoplastic hydrocarbon polymer composition |
| KR920701336A (ko) * | 1989-10-06 | 1992-08-11 | 제임즈 제이 플린 | 어렵게-용융-가공성 중합체를 위한 압출 방법 |
| CA2029979A1 (fr) * | 1989-11-16 | 1991-05-17 | Kenneth D. Goebel | Composition a base de polymeres |
| US5304422A (en) * | 1990-09-19 | 1994-04-19 | Bando Chemical Industries, Ltd. | Low friction polyamide, polyethylene, P.T.F.E. resin |
| US5459188A (en) * | 1991-04-11 | 1995-10-17 | Peach State Labs, Inc. | Soil resistant fibers |
| US5750626A (en) * | 1992-12-10 | 1998-05-12 | Daikin Industries, Ltd. | Thermoplastic resin composition |
| US5891538A (en) * | 1993-10-29 | 1999-04-06 | Baikin Industries, Ltd. | Thermoplastic resin composition and laminate comprising the same |
-
1996
- 1996-12-20 WO PCT/FR1996/002050 patent/WO1997023570A1/fr not_active Ceased
- 1996-12-20 CN CN96193411A patent/CN1102616C/zh not_active Expired - Fee Related
- 1996-12-20 AU AU11985/97A patent/AU1198597A/en not_active Abandoned
- 1996-12-20 US US08/894,622 patent/US5986005A/en not_active Expired - Fee Related
- 1996-12-20 JP JP9523368A patent/JPH11501083A/ja active Pending
- 1996-12-20 EP EP96943166A patent/EP0811038A1/fr not_active Withdrawn
- 1996-12-20 CA CA002211806A patent/CA2211806A1/fr not_active Abandoned
- 1996-12-20 KR KR1019970705800A patent/KR100312055B1/ko not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9723570A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997023570A1 (fr) | 1997-07-03 |
| JPH11501083A (ja) | 1999-01-26 |
| US5986005A (en) | 1999-11-16 |
| KR19980702401A (ko) | 1998-07-15 |
| AU1198597A (en) | 1997-07-17 |
| CA2211806A1 (fr) | 1997-07-03 |
| CN1102616C (zh) | 2003-03-05 |
| KR100312055B1 (ko) | 2002-05-09 |
| CN1182449A (zh) | 1998-05-20 |
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