Polyester urethane-containing molding compositions

Details Polyester urethane-containing molding compositions Polyester urethane-containing molding compositions

C - Chemistry, Metallurgy

08

L

400/104, 402/140

C08L 67/06 (2006.01) C08F 290/06 (2006.01) C08G 18/67 (2006.01) C08G 18/68 (2006.01) C08L 75/06 (2006.01) C08L 75/16 (2006.01)

Patent

CA 1164142

ABSTRACT OF THE DISCLOSURE Polyester urethane derivatives having the following general formula: c-i-(d-n)td-i-c wherein d is a radical derived from an organic polyol; n is a radical derived from an unsaturated aliphatic dicarboxylic acid or an anhydride thereof; i is a radical derived from a polyisocyanate; c is a carbamyl-linked radical derived from a hydroxy-terminated ester of acrylic or methacrylic acid; t is an integer equal to from 1 to about 5; in ethylenically unsaturated monomer solutions are thickened to moldable non-sticky gels by the formation in said solution of minor amounts of branch chain polyurethane resin mixtures free of ethylenic unsaturation. The physical properties of reinforced molded articles made from these molding compositions show dramatic improvement in impact strength and flexibility.

351190

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