Modification of amino polyols with epoxy resins
US4309532A · kind A · utility
17Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Sep 2, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The modification of rigid amino polyols by their reaction with epoxy resin and alkylene oxides is described. The modified polyols produce rigid polyurethane foams that have higher heat distortion temperatures and better low temperature properties than foams made with nonmodified polyols. The viscosities of the epoxy resin-modified amino polyols are not significantly different than those of the prior art amino polyols although they are of a higher functionality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.