Oxazolidone-modified isocyanurate foams and a composition and method for their production
US4699931A · kind A · utility
11Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1986 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Apr 25, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/902
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Oxazolidone-containing isocyanurate foams characterized by thermal stability at a temperature of about 140.degree. C. or higher. These foams are produced by reacting at least one polyisocyanate with at least one polyepoxide in the presence of catalyst, surfactant, and blowing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.