# US 2018/0022970 A1 · Novel thermoprocessable fluoropolymer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0022970 A1 - Document ID: US20180022970A1 - Status: Published application - Kind: A1 - Application number: 15/550,403 - Filed: 2016-02-05 - Published: 2018-01-25 - Earliest claimed: 2015-02-11 - Applicants: Solvay Specialty Polymers Italy S.P.A. - Inventors: Serena CARELLA; Giulio BRINATI - Web page: https://patentgrep.com/patent/US20180022970A1 ## CPC - C09J 127/12: containing fluorine atoms - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 15/08: of synthetic resin - B32B 15/082: comprising vinyl resins; comprising acrylic resins - B32B 15/085: comprising polyolefins - B32B 15/18: comprising iron or steel {(B32B15/011, B32B15/012 and B32B15/013 take precedence)} - B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} - B32B 27/08: of synthetic resin - B32B 27/26: using curing agents - B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF} - B32B 27/322: {comprising halogenated polyolefins, e.g. PTFE} - B32B 27/34: comprising polyamides - C08F 214/245: {with non-fluorinated comonomers} - C08F 214/265: {with non-fluorinated comonomers} - C09D 127/12: containing fluorine atoms - B32B 2307/714: Inert, i.e. inert to chemical degradation, corrosion - B32B 2307/7246: Water vapor barrier - B32B 2457/10: Batteries - B32B 2457/18: Fuel cells - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - 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 (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) ## Abstract The present invention relates to a novel thermoprocessable fluoropolymer containing ethylene and chlorotrifluoroethylene and/or tetrafluoroethylene, and to a multi-layered article comprising it. ## Claims ### Claim 1 A polymer (P) essentially consisting of: (a) from 51% to 65% by moles of recurring units derived from chlorotrifluoroethylene (CTFE) and/or tetrafluoroethylene (TFE); (b) from 0.5% to 10% by moles of recurring units derived from acrylic acid (AA); and (c) from 31% to 45% by moles of recurring units derived from ethylene (E) in an amount such that the sum of the percentages of the recurring units (a), (b) and (c) is equal to 100% by moles, wherein the mentioned percentages by moles are based on the total number of moles of recurring units of said polymer (P). ### Claim 2 (depends on 1) Polymer (P) according to claim 1, wherein the recurring units derived from chlorotrifluoroethylene (CTFE) and/or tetrafluoroethylene (TFE) are in an amount of from 53% to 62%, by moles based on the total number of moles of recurring units of said polymer (P). ### Claim 3 (depends on 2) Polymer (P) according to claim 2, wherein the recurring units derived from chlorotrifluoroethylene (CTFE) and/or tetrafluoroethylene (TFE) are in an amount of from 54% to 60%, by moles based on the total number of moles of recurring units of said polymer (P). ### Claim 4 (depends on 1) Polymer (P) according to claim 1, wherein the recurring units derived from acrylic acid (AA) are in an amount of from 0.5% to 9% by moles based on the total number of moles of recurring units of said polymer (P). ### Claim 5 (depends on 3) Polymer (P) according to claim 3, wherein the recurring units derived from acrylic acid (AA) are in an amount of from 1% to 9%, by moles based on the total number of moles of recurring units of said polymer (P). ### Claim 6 (depends on 1) Polymer (P) according to claim 1, said polymer (P) consisting of: (a) from 58% to 60% by moles of recurring units derived from chlorotrifluoroethylene (CTFE); (b) from 1% to 9% by moles of recurring units derived from acrylic acid (AA); and (c) from 31% to 41% by moles of recurring units derived from ethylene (E), wherein the percentages by moles are based on the total number of moles of recurring units of said polymer (P). ### Claim 7 (depends on 1) Polymer (P) according to claim 1, said polymer (P) consisting of: (a) from 58% to 60% by moles of recurring units derived from chlorotrifluoroethylene (CTFE); (b) from 1.2% to 8.5% by moles of recurring units derived from acrylic acid (AA); and (c) from 31.5% to 40.8% by moles of recurring units derived from ethylene (E), wherein the percentages by moles are based on the total number of moles of recurring units of said polymer (P). ### Claim 8 (depends on 1) A method for manufacturing polymer (P) as defined in claim 1, said method comprising reacting ethylene (E) and chlorotrifluoro ethylene (CTFE) and/or tetrafluoroethylene (TFE) in the presence of acrylic acid (AA). ### Claim 9 (depends on 8) The method according to claim 8, wherein the reaction of ethylene (E) and chlorotrifluoro ethylene (CTFE) and/or tetrafluoroethylene (TFE) in the presence of acrylic acid (AA) is carried out in suspension. ### Claim 10 (depends on 8) The method according to claim 8, wherein the reaction of ethylene (E) and chlorotrifluoro ethylene (CTFE) and/or tetrafluoroethylene (TFE) in the presence of acrylic acid (AA) is carried out at a temperature between −40° C. and +100° C. and at a pressure in the range 0.5-100 bar. ### Claim 11 (depends on 1) An article comprising: a substrate having at least one surface (S) and at least one layer (L1) directly adhered to said surface (S), said layer (L1) comprising polymer (P) as defined claim 1. ### Claim 12 (depends on 11) The article according to claim 11, wherein said substrate is a polymeric substrate or a metal substrate. ### Claim 13 (depends on 12) The article according to claim 12, wherein said polymeric substrate is selected from group consisting of a polyamide substrate, a polyarylamide substrate, and a polyimide substrate. ### Claim 14 (depends on 12) The article according to claim 12, wherein said metal substrate is selected from the group consisting of stainless steel, galvanized stainless steel, carbon steel, copper, aluminium, iron, zinc, cadmium, magnesium, brass, bronze, Monel®, and Inconel®. ### Claim 15 (depends on 11) A method for manufacturing an article as defined in claim 11, said method comprising the steps of: (I) providing a substrate having at least one surface (S); (II) manufacturing at least one layer (L1) directly adhered to said surface (S), said layer (L1) comprising polymer (P). ### Claim 16 (depends on 7) An article comprising: a substrate having at least one surface (S) and at least one layer (L1) directly adhered to said surface (S), said layer (L1) comprising polymer (P) as defined claim 7. ### Claim 17 (depends on 16) The article according to claim 16, wherein said substrate is a polymeric substrate or a metal substrate. ### Claim 18 (depends on 17) The article according to claim 17, wherein said polymeric substrate is selected from the group consisting of a polyamide substrate, a polyarylamide substrate, and a polyimide substrate. ### Claim 19 (depends on 17) The article according to claim 17, wherein said metal substrate is selected from the group consisting of stainless steel, galvanized stainless steel, carbon steel, copper, aluminium, iron, zinc, cadmium, magnesium, brass, bronze, Monel®, and Inconel®.