Preparation of polyether compositions
US4877879A · kind A · utility
9Cited by
11References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1988 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Jan 4, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2011/0023
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In an improved process for the preparation of polyether compositions, amine-initiated, alkaline catalyzed polyethers are neutralized with a substantial excess of formic acid that neutralizes the catalyst and stabilizes the resultant composition. This is particularly advantageous where tertiary nitrogen is found in the amine initiator or in the polyether that results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.