DUAL-CURABLE LOW-TEMPERATURE CROSSLINKED BLOCKED ISOCYANATE AND COMPOSITION COMPRISING SAME

• Main Authors: NOH, Seung-Man, NAM, Joon-Hyun, SONG, Young-Kyu, KIM, Jin-Chul, KIM, Beom-Jin, PARK, Young-IL
• Format: Patent
• Language: English; French; Korean
• Published: 21.09.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention pertains to a novel blocked isocyanate having a dual curing reaction type structure having different dissociation temperatures, and more specifically pertains to a dual-curable low-temperature crosslinked blocked isocyanate formed by using a radical initiator to block an isocyanate group of a polyisocyanate compound that is an aliphatic, aromatic, alicyclic or araliphatic diisocyante, and to a low-temperature crosslinked composition which comprises the blocked isocyanate and an oligomer or a monomer having simultaneously a hydroxyl group and an ethylene or acrylic unsaturated double bond. La présente invention concerne un nouvel isocyanate bloqué présentant une structure de type à double réaction de durcissement présentant des températures de dissociation différentes, et plus particulièrement un isocyanate bloqué réticulé à basse température et à durcissement double formé à l'aide d'un initiateur radicalaire pour bloquer un groupe isocyanate d'un composé polyisocyanate qui est un diisocyanate aliphatique, aromatique, alicyclique ou araliphatique, et une composition réticulée à basse température qui comprend l'isocyanate bloqué et un oligomère ou un monomère présentant simultanément un groupe hydroxyle et une double liaison insaturée éthylénique ou acrylique. 본원 발명은 해리온도가 서로 다른 이중경화 반응형 구조의 새로운 블록이소시아네이트에 대한 것으로, 보다 구체적으로는 지방족, 방향족,지환식(alicyclic), 또는 방향지방족 디이소시아네이트인 폴리이소시아네이트 화합물의 이소시아네이트기를 라디칼 개시제로 블록화하여 제조되는 이중 경화가 가능한 저온가교형 블록이소시아네이트 및 이러한 블록이소시아네이트와 에틸렌계 또는 아크릴계의 불포화 이중결합과 수산화기를 동시에 가지는 단량체 또는 올리고머를 포함하는 저온가교형 조성물에 대한 것이다.