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US 8,835,565 B2Granted
Preformed stabilizers useful for the production of polymer polyols and polymer polyols produced therefrom
AssigneeBayer MaterialScience AG
InventorsJiong England, Rick L. Adkins, Brian L. Neal, William Gill
Life of this patent
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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.
Claims14
A preformed stabilizer formed by free-radical polymerization of a mixture comprising:
- (a) at least one ethylenically unsaturated macromolecule or macromer,
- with
- (b) at least three different radically polymerizable 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.
6 more elements
Dependencies are inferred from the claim text.