Coating, adhesive and sealant compositions
US6521716B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Feb 25, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0667
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A coating, adhesive or sealant composition curable by Michael reaction comprises (A) a Michael acceptor which is a compound or polymer containing at least two activated olefinic double bonds and (B) a Michael donor which is a compound or polymer containing at least two nucleophilic groups. The double bonds of the Michael acceptor (A) are activated by two adjacent electron-withdrawing groups. Alternatively or additionally, the Michael donor (B) contains &bgr;-ketoamide, enamine carboxylate, enamine amide, pyrazolone, isoxazolone, hydantoin, rhodanine, thio-substituted unsaturated ester, thio-substituted lactone or phosphonite or phosphinite ester groups. More rapid ambient temperature curing is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.