Low density high resiliency foams
US4269946A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1980 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Jan 31, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing flexible polyurethane foams having improved load bearing properties which process includes the step of reaction of a polyisocyanate with a polymeric polyol in the presence of a catalyst, a blowing agent and a chain extender consisting of 1,2-diaminocyclohexane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.