Patent ID: 7232855

Claim:
A plasticized thermoplastic polymer/elastomer composite composition comprising a thermoplastic polymer and a rubber selected from the group consisting of natural rubbers, synthetic rubbers, and combinations thereof, and a cyclic dimerate or trimerate ester plasticizer compound having formula I, II, or a mixture thereof: wherein R 5 and R 7 , same or different, are a C 3 –C 24 hydrocarbon chain, straight chain or branched, either saturated or having 1 to 6 carbon-to-carbon double bonds; R 6 and R 8 , same or different, are a C 3 –C 24 hydrocarbon chain, straight chain or branched, saturated or unsaturated containing 1 to 3 carbon-to-carbon double bonds; and R 10 and R 11 , same or different, are a C 3 –C 24 saturated hydrocarbon chain, straight chain or branched, or an unsaturated C 3 –C 24 hydrocarbon chain, straight chain or branched, having 1 to 6 carbon-to-carbon double bonds; wherein R 12 , R 14 and R 18 , same or different, are a C 3 –C 24 hydrocarbon chain, straight chain or branched, either saturated or having 1 to 6 carbon-to-carbon double bonds; R 13 , R 15 and R 19 , same or different, are a C 3 –C 24 hydrocarbon chain, straight chain or branched, saturated or unsaturated containing 1 to 3 carbon-to-carbon double bonds; and R 16 , R 17 and R 20 , same or different, are a C 3 –C 24 saturated hydrocarbon chain, straight chain or branched, or an unsaturated C 3 –C 24 hydrocarbon chain, straight chain or branched, containing 1 to 6 carbon-to-carbon double bonds.