Process for production of polymer polyols
US8470927B2 · kind B2 · utility
3Cited by
37References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2004 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Sep 12, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2101/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a process for preparing a polymer polyol (PMPO) by alkoxylating a starter compound(s) having active hydrogen atoms in the presence of a double metal cyanide (DMC) catalyst, radical initiator(s) and optionally PMPO stabilizers and simultaneously polymerizing unsaturated monomer(s) with radical initiator(s). The polymer polyols (PMPOs) made by the inventive process may find use in the preparation of polyurethane foams and elastomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.