Polymerizable cyclic urea derivatives and polymers having a pendant urea
US5179184A · kind A · utility
1Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1991 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | Apr 10, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F20/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to polymerizable cyclic urea derivatives which can be thermally split to give rise to an isocyanate group; and to a polymer having cyclic urea pendant groups, which can be cured by heating without any additional curing agent such as an isocyanate blocked with a volatile lower molecular weight material, so that volatile material is not released in a thermal curing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.