US 2010/0160469 A1Published application

Polymer polyols comprising a natural oil base polyol, polyurethane foams comprising these polymer polyols and processes for their preparation

AssigneeBayer Material Science AG

InventorsRick L. Adkins, Stanley L. Hager, Brian L. Neal, Jack R. Reese, Jiong England, Micah N. Moore

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Abstract

This invention relates to polymer polyols comprising the free-radical polymerization product of a base polyol, at least one ethylenically unsaturated monomer, and, optionally, a preformed stabilizer, in the presence of at least one free-radical polymerization initiator and at least one chain transfer agent, in which the base polyol is a natural oil. A process for preparing these polymer polyols is also described. The present invention also relates to a polyurethane foam prepared from these polymer polyols and to a process for the preparation of these polyurethane foams.

Claims32

Dependent claims

A polymer polyol comprising the free-radical polymerization reaction product of:

(1) a base polyol selected from the group consisting of:
(a) one or more natural oils which naturally contains at least one hydroxyl group,
(b) one or more hydroxylated derivatives of one or more natural oils,
(c) one or more polyols which comprise the alkoxylation product of one or more natural oils which naturally contains at least one hydroxyl group with one or more alkylene oxides,
(d) one or more polyols which comprise the alkoxylation product of one or more hydroxylated derivatives of one or more natural oils with one or more alkylene oxides;
and
(e) mixtures thereof;
(2) at least one ethylenically unsaturated monomer,
and
(3) optionally, a preformed stabilizer,
in the presence of
(4) a free-radical polymerization initiator,
and, optionally,
(5) a chain transfer agent.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/317,563Filed 23 Dec 2008
Published: 24 Jun 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

C08G 18/4072
Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64: mixtures of compounds of group…
C08F 283/06
Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G: on to polyethers, polyoxymethylenes or…
C08F 291/08
On to oxygen-containing macromolecules: on to macromolecules containing hydroxy radicals
C08G 18/631
Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers: onto polyesters and/or polycarbonates