Unsaturated polyester compositions
AssigneeUnion Carbide Corporation
InventorsLowell R. Comstock, Percy L. Smith
Life of this patent
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Abstract
The disclosure of this application is directed to unsaturated polyester compositions, containing a thermoplastic terpolymer of a vinyl halide monomer, a vinyl ester of a saturated, monocarboxylic acid and as the third component, an unsaturated, dicarboxylic acid or anhydride thereof; or as the third component, a glycidyl ester of an unsaturated, monocarboxylic acid, which can be pigmented with organic and/or inorganic pigments and molded into shaped, thermoset articles such as housings for telephones, automobile heater ducts and the like which are characterized by excellent surface characteristics and color properties.
Claims32
A polyester composition, suitable for use in molding, comprising an ethylenically unsaturated monomer, an unsaturated polyester which is the condensation product of an ethylenically unsaturated polycarboxylic acid or anhydride and a polyol, and, as a low profile additive, a thermoplastic terpolymer of a vinyl halide monomer, a vinyl ester of a saturated, monocarboxylic acid, and as the third component of said terpolymer an unsaturated dicarboxylic acid or anhydride thereof;
- or as the third component a glycidyl ester of an unsaturated, monocarboxylic acid, said terpolymer being present in said composition in an amount of about 1 to about 85 percent by weight based on the weight of said unsaturated polyester, wherein said terpolymer contains (a) at least about 45 weight percent polymerized vinyl halide, (b) from about 0.25 to about 10 weight percent of polymerized unsaturated dicarboxylic acid or anhydride thereof, or from about 1 to about 15 weight percent of polymerized glycidyl ester of an unsaturated, monocarboxylic acid, and (c) the remainder of said terpolymer being polymerized vinyl ester of a saturated, monocarboxylic acid.
A polyester composition, suitable for use in molding, comprising an ethylenically unsaturated monomer, an unsaturated polyester which is the condensation product of an ethylenically unsaturated polycarboxylic acid or anhydride and a polyol, and, as a low profile additive, a thermoplastic terpolymer of a vinyl halide monomer, a vinyl ester of a saturated monocarboxylic acid and an unsaturated, dicarboxylic acid or anhydride thereof, said terpolymer containing about 45 to about 95 percent by weight combined vinyl halide monomer, about 5 to about 55 percent by weight combined vinyl ester of a saturated, monocarboxylic acid, and about 1 to about 10 percent by weight combined dicarboxylic acid or anhydride thereof, and is present in said composition in an amount of about 1 to about 85 percent by weight based on the weight of said unsaturated polyester.
A polyester composition, suitable for use in molding, comprising an ethylenically unsaturated monomer, an unsaturated polyester which is the condensation product of an ethylenically unsaturated polycarboxylic acid or anhydride and a polyol, and, as a low profile additive, a thermoplastic terpolymer of a vinyl halide monomer, a vinyl ester of a saturated, monocarboxylic acid, and a glycidyl ester of an unsaturated, monocarboxylic acid, said terpolymer containing about 45 to about 95 percent by weight combined vinyl halide monomer, about 5 to about 55 percent by weight combined vinyl ester of a saturated, monocarboxylic acid, and about 1 to about 15 percent by weight combined glycidyl ester of an unsaturated, monocarboxylic acid, and is present in said composition in an amount of about 1 to about 85 percent by weight based on the weight of said unsaturated polyester.
A composition comprising (A) an unsaturated polyester which is the condensation product of at least one ethylenically unsaturated dicarboxylic acid with at least one dihydric alcohol, (B) an ethylenically unsaturated monomer, and (C) 1 to 85 percent by weight, based on polyester, of a terpolymer containing about 45 to about 95% by weight combined vinyl chloride, about 5 to about 55% by weight combined vinyl acetate, and about 1 to about 10% by weight of an ethylenically unsaturated dicarboxylic acid.
Dependencies are inferred from the claim text.