Heat-stabilized acrylate elastomer composition and process for its production

A polyamide-filled acrylate copolymer composition comprising

• A. a polymer blend composition comprising
• 1. 40 to 90 wt. % of one or more amorphous acrylate copolymers comprising
• a) at least 50 wt. %, based on the total weight of the amorphous acrylate copolymers, of polymerized units of at least one monomer having the structure
• wherein R1 is H or C1-C10 alkyl and R2 is C1-C12 alkyl, C1-C20 alkoxyalkyl, C1-C12 cyanoalkyl, or C1-C12 fluoroalkyl, and
• b) 0.3 mole percent-1.0 mole percent copolymerized units 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;
• and
• 2. 10-60 wt. % of one or more polyamides having a melting peak temperature of at least 160° C.;
• wherein i) the polymer blend composition has a green strength of less than about 2 MPa as determined according to ASTM D6746-10, ii) the one or more polyamides are present as a discontinuous phase in the polymer blend composition and iii) the weight percentages of the one or more amorphous acrylate copolymers and one or more polyamides are based on the combined weight of the one or more amorphous acrylate copolymers and one or more polyamides in the polymer blend composition.