Curable compositions based on polyuretidiones, polythiols and photoactivable bases and generation of isocyanates from uretidiones
US9102785B2 · kind B2 · utility
9Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2009 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Aug 8, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Curable compositions based on polyuretidiones, polythiols and photoactivable bases are disclosed. Also a process for generating isocyanate groups by exposing uretidiones to radiation in the range of 100-315 nm is disclosed. The process can be used in a dual curing system for curing compositions that comprise groups that under go photoinduced polymerizations and active hydrogen groups that react with the generated isocyanates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.