Integral skin rigid polyurethane structural foam
US4780482A · kind A · utility
12Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | May 1, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to integral skin rigid polyurethane structural foam having high impact strength, high heat distortion and flame retardant properties. This foam is prepared from a polyol selected from the group consisting of polyoxyalkylene polyether polyol, a polyester polyol or mixture thereof, an organic polyisocyanate, a chain extender and blowing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.