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US 2006/0217516 A1Published application
Tertiary amine modified polyurethane products made therefrom
OwnerFrancois Casati, Joseph Gan +4inventors
InventorsFrancois Casati, Joseph Gan, Richard Wehmeyer, Robert Whitmarsh, Ray Drumright, John Weston
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Abstract
The present invention pertains to low emission polyurethane polymer products based on autocatalytic polyols made by modification of conventional polyols with tertiary amines and processes for their manufacture. The tertiary amine is bound to a conventional polyol by means of an epoxide, epichlorohydrin, or grafting by means of an azo and/or peroxide initiator or sulfonyl azide.
Claims19
A process for the production of a polyurethane product by reaction of a mixture of
- (a) at least one organic polyisocyanate with
- (b) a polyol composition comprising
- (b1) from 0 to 99 percent by weight of a polyol compound having a functionality of 2 to 8 and a hydroxyl number of from 20 to 800 and
- (b2) from 1 to 100 percent by weight of at least one polyol compound having a functionality of 1 to 12, a hydroxyl number of from 20 to 800 and containing at least one tertiary amine group,
- wherein the weight percent is based on the total amount of polyol composition (b), (b1) is different than (b2) and (b2) is one or more of:
- polyol (b2a) obtained by the reactions of a polyol of (b 1) type with a polyepoxide and an amine based molecule wherein the amine-base molecule is a secondary amine or a molecule containing at least one tertiary nitrogen and at least one reactive hydrogen able to react with the epoxide group;
- polyol (b2b) obtained by the reactions of a polyol of (b1) type with an epihalohydrin and an amine based molecule wherein the amine based molecule is a secondary amine or a molecule containing at least one tertiary nitrogen and at least one reactive hydrogen able to react with the product of the polyol (b1) an epihalohydrin group;
- or polyol (b2c) obtained by reaction of a polyol made from epihalohydrin as a co-monomer together with propylene oxide and/or ethylene oxide and an amine based molecule wherein the amine based molecule is a secondary amine or a molecule containing at least one tertiary nitrogen and at least one reactive hydrogen able to react with a haloalkyl;
- or polyol (b2d) obtained by grafting of tertiary amine functions to a conventional polyol of (b1) type by functional azo and/or peroxide initiator;
- or polyol (b2e) obtained by grafting of tertiary amine functions onto a polyol of (b1) type via reactive functionality such as sulfonyl azide;
- or (b2) is (b2f) a hydroxyl-tipped prepolymer obtained from the reaction of an excess of (b2a)-(b2e) or a mixture thereof with a polyisocyanate;
- or (b2) is (b2g) a blend of several polyols (b1) modified with one or more polyepoxides and/or polyol (b2) blended with one or more types of amine initiated polyols containing each at least one reactive hydrogen or a blend of (b2a) and/or (b2b) and/or (b2c) and/or (b2d) and/or (b2e);
- (c) optionally in the presence of a blowing agent;
- and
- (d) optionally additives or auxiliary agents known per se for the production of polyurethane foams, elastomers and/or coatings.
12 more elements
Dependencies are inferred from the claim text.