코팅 시스템

• Main Authors: GUPTA RAJNI, IJDO WOUTER, HECK JAMES A, CHEN YANHUI, DESHMUKH PRASHANT, HOYTE WAYNE, GRAY MAURICE
• Format: Patent
• Language: Korean
• Published: 19.02.2020
• 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; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; 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 INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

가교성 코팅 조성물을 함유하는 코팅 조성물. 코팅 시스템은 활성화되어 마이클 탄소음이온 공여체를 형성할 수 있는 적어도 2개의 양성자를 갖는 구성성분 A; 전자-끄는 기에 의해 각각 활성화된 적어도 2개의 에틸렌계 불포화 관능기를 갖는 마이클 수용체로서 기능하는 구성성분 B; 및 촉매 시스템을 포함한다. 하나의 실시양태에서, 촉매 시스템은 디에틸 카르보네이트, 4급 암모늄 히드록시드 또는 4급 암모늄 알콕시드, 에탄올 및 4-6 중량% 물을 포함한다. 또 다른 실시양태에서, 촉매 시스템은 이산화탄소, 4급 암모늄 히드록시드 또는 4급 암모늄 알콕시드, 에탄올 및 2-4 중량% 물을 포함한다. 특정 실시양태에서, 코팅 조성물은 임의적으로 RR가 각각 독립적으로 수소, 1 내지 22개의 탄소 원자; 1 내지 8개의 탄소 원자; 1 내지 3개의 탄소 원자를 갖는 선형 또는 분지형 치환 또는 비치환된 알킬 기로부터 선택된 것인 암모늄 카르바메이트 (HNRR+-OC=ONRR)를 추가로 포함한다. A coating composition containing a crosslinkable coating composition. The coating system comprises: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a catalyst system. In one embodiment, the catalyst system comprises diethyl carbonate, quaternary ammonium hydroxide or quaternary ammonium alkoxide, ethanol and 4-6 wt. % water. In another embodiment, the catalyst system comprises carbon dioxide, quaternary ammonium hydroxide or quaternary ammonium alkoxide, ethanol and 2-4 wt. % water. In certain embodiments, the coating composition optionally further comprising ammonium carbamate (H2NR8R9+-OC═ONR8R9), wherein R8 R9 are each independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; 1 to 3 carbon atoms.