Preformed stabilizers useful for the production of polymer polyols and polymer polyols produced therefrom
US8835565B2 · kind B2 · utility
10Cited by
18References
14Claims
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Key dates
| Filing date | Apr 18, 2012 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | May 20, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L33/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Preformed stabilizers useful for the production of low viscosity, high solids polymer polyols are produced by free-radical polymerization of: (a) at least one ethylenically unsaturated macromolecule or macromer with (b) at least three different ethylenically unsaturated monomers in the presence of (c) at least one free-radical polymerization initiator, and, optionally, (d) a liquid diluent, and, optionally, (e) a chain transfer agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.