A water-based coating composition for Automobile interior materials

• Main Authors: YUN JAEKYUNG, CHO HEEWON, JANG JIHOON, KIM SUNMI
• Format: Patent
• Language: English; Korean
• Published: 10.06.2019
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

The present invention relates to a primerless coating composition for a thermoplastic polyolefin (TPO) substrate, which is eco-friendly by not including chlorine. The primerless coating composition for a TPO substrate comprises: a modified polyolefin emulsion resin obtained by performing primary grafting reaction of an acid anhydride and divinylbenzene to a propylene-alpha olefin copolymer resin and then performing secondary grafting reaction the same with a polar polymer; a water-dispersed polyurethane resin; an additive; and a water-based solvent. 본 발명은 프로필렌-알파올레핀 공중합 수지에 산무수물과 디비닐벤젠을 1차 그라프트 반응시킨 후 극성 폴리머로 2차 그라프트 반응시켜 얻은 변성 폴리올레핀 에멀젼 수지, 수분산 폴리우레탄 수지, 첨가제 및 수계 용매를 포함하는 TPO 기재용 프라이머리스 코팅 조성물에 대해 기술한다.