Low viscosity polymer polyols
US7179882B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2004 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Aug 2, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to low viscosity polymer polyols and to a process for the preparation of these low viscosity polymer polyols. These polymer polyols comprise the free-radical polymerization product of (A) a base polyol, (B) a pre-formed stabilizer, and (C) at least one ethylenically unsaturated monomer, in the presence of (D) at least one free-radical polymerization initiator, and (E) at least one polymer control agent. The total amount of polymer control agent present in the polymer polyols of the present invention ranges from greater than about 5.0% up to about 20% by weight, based on 100% by weight of the polymer polyol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.