Foam slabstock polyether polyols with improved scorch characteristics
US5169989A · kind A · utility
2Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Mar 1, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for preparing a polyether polyol of reduced scorching properties comprising buffering of the alkaline polyether polyol before heating to remove water, and the use of said polyether polyol to prepare flexible foam slabstocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.