Curable resin compositions comprising hydroxyl-terminated unsaturated polyester oligomer, a polyisocyanate, an ethylenically unsaturated monomer and a catalyst
AssigneeUnion Carbide Corporation
InventorEdward N. Peters
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Abstract
Described herein is a curable resin composition comprising a homogeneous mixture of a hydroxyl-terminated unsaturated polyester oligomer, a polyisocyanate, an ethylenically unsaturated monomer, and a polyurethane forming catalyst.
Claims22
A curable resin composition comprising:
- (a) a hydroxyl-terminated unsaturated polyester oligomer,
- (b) a polyisocyanate,
- (c) an ethylenically unsaturated monomer, and
- (d) a catalyst capable of catalyzing polyurethane-forming reactions of the polyester oligomer and the polyisocyanate.
A process for preparing a curable resin composition which comprises reacting a hydroxyl-terminated unsaturated polyester oligomer with a polyisocyanate and a polymerizable ethylenically unsaturated monomer at a temperature of from about 100.degree. to about 160.degree. C.
A process for preparing a curable resin composition which comprises reacting a hydroxyl-terminated unsaturated polyester oligomer with a polyisocyanate and a polymerizable ethylenically unsaturated monomer at ambient temperatures and then completing the reaction at from about 100.degree. to about 160.degree. C.
A curable resin composition comprising:
- (a) a hydroxyl-terminated unsaturated polyester oligomer having an acid number of less than about 0.5.
- (b) a polyisocyanate,
- (c) an ethylenically unsaturated monomer comprising styrene, and
- (d) a catalyst capable of catalyzing polyurethane-forming reactions of the polyester oligomer and the polyisocyanate.
Dependencies are inferred from the claim text.