Polyisocyanurate resin and process for making the same
US4299924A · kind A · utility
23Cited by
4References
27Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 17, 1980 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Jul 17, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
High-density polyisocyanurate resins having improved rigidity, heat resistance and/or impact resistance can be obtained by reacting a polyisocyanate with a polymer polyol derived from a polyol having a molecular weight of at least 4500, and optionally a crosslinker, in the presence of trimerization catalyst, using isocyanate index of 200-5000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.