Water-insoluble nitrogen-containing polyols
US4137265A · kind A · utility
32Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1976 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | Jan 28, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/546
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A group of water-insoluble nitrogen-containing polyols is provided which are capable of self-catalyzed reaction with organic polyisocyanates to form rigid polyurethane foams of excellent dimensional strength. The polyols of this group are prepared by reacting from 2 to 3 mols of propylene oxide with one mol of the Mannich reaction product of a mol of phenol or nonylphenol with one or two mols of diethanolamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.