# US 10,766,999 B2 · Poly(amide-imide) resin composition and fluorochemical coating material > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,999 B2 - Document ID: US10766999B2 - Status: Granted - Kind: B2 - Application number: 15/781,201 - Filed: 2016-12-05 - Published: 2018-12-13 - Granted: 2020-09-08 - Earliest claimed: 2015-12-07 - Assignees: Hitachi Chemical Company, Ltd. - Applicants: Hitachi Chemical Company, Ltd. - Inventors: Atsushi Takahashi - Web page: https://patentgrep.com/patent/US10766999B2 ## CPC - C08G 18/8064: {with monohydroxy compounds} - C08G 18/0852: {the solvents being organic} - C08G 18/10: Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step - C08G 18/345: {having three carboxylic acid groups} - C08G 18/7671: {containing only one alkylene bisphenyl group} - C08G 18/8074: {Lactams} - C08G 18/8077: {Oximes} - C08G 73/1035: {from tetracarboxylic acids or derivatives and diisocyanates} - C08G 73/14: Polyamide-imides - C08K 5/357: Six-membered rings - C09D 7/20: Diluents or solvents - C09D 7/40: Additives - C09D 179/08: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors - C09D 201/04: containing halogen atoms - C08K 3/22: of metals - C08L 79/08: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors - C09D 7/65: macromolecular (C09D7/41-C09D7/48 take precedence) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - 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) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract A polyamideimide resin composition containing: (A) a polyamideimide resin which has isocyanate groups at the terminals and in which at least a portion of the isocyanate groups are blocked with a blocking agent selected from the group consisting of alcohols, oximes and lactams, (B) N-formylmorpholine, and (C) water. ## Claims ### Claim 1 A fluorochemical coating material comprising a fluororesin and a polyamideimide resin composition comprising: (A) a polyamideimide resin which has isocyanate groups at terminals and in which at least a portion of the isocyanate groups are blocked with a blocking agent selected from the group consisting of alcohols, oximes and lactams, (B) N-formylmorpholine, and (C) water. ### Claim 2 (depends on 1) The fluorochemical coating material according to claim 1, wherein a number average molecular weight of the polyamideimide resin (A) is from 5,000 to 50,000. ### Claim 3 (depends on 1) The fluorochemical coating material according to claim 1, wherein an acid value of the polyamideimide resin (A), composed of a combination of carboxyl groups and other carboxyl groups formed as a result of ring-opening of acid anhydride groups, is from 10 to 80 mgKOH/g. ### Claim 4 (depends on 1) The fluorochemical coating material according claim 1, wherein an amount of the water (C) is at least 10% by mass relative to a total mass of the composition. ### Claim 5 (depends on 1) A substrate having a coating film formed from the fluorochemical coating according to claim 1 on at least a portion of a surface of the substrate. ### Claim 6 (depends on 1) An article having a coating film formed from the fluorochemical coating according to claim 1 on at least a portion of a surface of the article. ### Claim 7 A fluorochemical coating material comprising a blocked polyamideimide resin and a fluororesin, the blocked polyamideimide resin being produced using a method comprising: reacting a diisocyanate compound and a tribasic acid anhydride and/or tribasic acid halide in an organic solvent containing N-formylmorpholine to produce a polyamideimide resin, and blocking terminal isocyanate groups of the polyamideimide resin with a blocking agent selected from the group consisting of alcohols, oximes and lactams. ### Claim 8 (depends on 7) A substrate having a coating film formed from the fluorochemical coating material according to claim 7 on at least a portion of a surface of the substrate. ### Claim 9 (depends on 7) An article having a coating film formed from the fluorochemical coating material according to claim 7 on at least a portion of a surface of the article. ### Claim 10 (depends on 2) An article having a coating film formed from the fluorochemical coating according to claim 2 on at least a portion of a surface of the article. ### Claim 11 (depends on 3) An article having a coating film formed from the fluorochemical coating according to claim 3 on at least a portion of a surface of the article. ### Claim 12 (depends on 4) An article having a coating film formed from the fluorochemical coating according to claim 4 on at least a portion of a surface of the article.