Patent ID: 8664317

Claim:
A process for production of a polyamide-filled acrylate polymer composition, the process comprising the steps (A) providing a polymer blend composition comprising 1 40 to 90 wt. % of one or more amorphous acrylate polymers, wherein at least one of the one or more amorphous acrylate polymers of the polymer blend composition is substantially free of a cure site monomer selected from the group consisting of unsaturated carboxylic acids, anhydrides of unsaturated carboxylic acids, unsaturated epoxides, and mixtures of two or more thereof, comprising at least 50 wt. %, based on the total weight of the amorphous acrylate polymer, of polymerized units of at least one monomer having the structure Where R 1 is H or C 1 -C 10 alkyl and R 2 is C 1 -C 12 alkyl, C 1 -C 20 alkoxyalkyl, C 1 -C 12 cyanoalkyl, or C 1 -C 12 fluoroalkyl; and 2 10-60 wt. % of one or more polyamides having a melting peak temperature greater than 160° C.; wherein the weight percentages of the one or more amorphous acrylate polymers and one or more polyamides are based on the combined weight of the one or more amorphous acrylate polymers and one or more polyamides in the polymer blend composition; (B) mixing the polymer blend composition at a temperature above the melting peak temperatures of the one or more polyamides to disperse the one or more polyamides within the one or more amorphous acrylate polymers, thereby forming a polyamide-filled acrylate polymer composition; and (C) cooling the polyamide-filled acrylate polymer composition to a temperature below the crystallization peak temperatures of the one or more polyamides, thereby forming a polyamide-filled acrylate polymer composition that i) comprises a continuous amorphous acrylate polymer phase and a discontinuous polyamide phase and ii) has a green strength of less than about 2 MPa as determined according to ASTM D 6746-10.