Blocked polyisocyanates with improved thermal stability
US5506327A · kind A · utility
9Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1995 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | May 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/8061
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to blocked polyisocyanates containing at least two isocyanate groups which are reversibly blocked with a monofunctional blocking agent for isocyanate groups and at least two isocyanate groups in the form of thermally stable hydantoin groups. The present invention also relates to one-component coating compositions containing these blocked polyisocyanates and compounds containing at least two isocyanate-reactive groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.