Patent ID: 8034875

Claim:
A thermoplastic composition, comprising: a styrenic block copolymer comprising at least one hard polymer block (A) and at least one soft polymer block (B), wherein at least one block of the at least one hard polymer block (A) is crosslinkable and independently includes at least one of (i) an alkyl styrene-derived functional unit and (ii) an aromatic vinyl compound unit having a functional group, wherein the soft polymer block (B) includes at least one repeat unit derived from an olefin or a diene; a non-olefin thermoplastic polymer or copolymer in an amount from about 10 to about 1,500 parts per 100 parts by weight of the styrenic block copolymer, and wherein the composition has less than 5 parts by weight of a polyolefin per 100 parts by weight of the styrenic block copolymer, wherein the non-olefin thermoplastic includes one or more of polyimide, polyester, poly(phenylene oxide), poly(phenylene sulfide), poly(imide) and poly(sulfone); and a compatibilizer derived from a reaction of at least a) a compatibilizer styrenic block copolymer, the compatibilizer styrenic block copolymer being different than the styrenic block copolymer, the compatibilizer styrenic block copolymer having one or more aromatic vinyl derived hard blocks, one or more soft blocks including at least one repeat unit derived from an olefin or a diene, and including one or more functional groups independently derived from a compound including a carboxylic acid group or an anhydride group, wherein the compatibilizer functional groups are different than the (i) alkylstyrene-derived functional unit and (ii) the aromatic vinyl compound unit having a functional group; and b) the non-olefin thermoplastic polymer or copolymer, and wherein the composition is free of a crosslinking agent.