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AssigneeKuraray Co., Ltd.
InventorsNobuhiro Moriguchi, Shinichi Torigoe, Kazuki Tokuchi
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Provided is a thermoplastic polymer composition, including a thermoplastic elastomer (A) and a polyvinyl acetal (B), wherein the thermoplastic elastomer (A) is a styrene-based thermoplastic elastomer or an olefin-based thermoplastic elastomer. Thus, a thermoplastic polymer composition is provided that has good flexibility as a thermoplastic elastomer composition, is excellent in mechanical properties and formability, and also itself has excellent adhesion to a ceramic, a metal, or a polar polymer. In addition, provided is a shaped article in which the thermoplastic polymer composition is adhered to a ceramic, a metal, or a polar polymer, in particular a shaped article adhered to a glass.
A thermoplastic polymer composition, comprising a thermoplastic elastomer (A) and a polyvinyl acetal (B) wherein the polyvinyl acetal (B) is polyvinyl butyral, wherein the thermoplastic elastomer (A) is a hydrogenation product of a block copolymer having a polymer block of an aromatic vinyl compound and a polymer block of a conjugated diene compound, wherein the block copolymer contains from 5 to 75 weight % of structural units obtained from the aromatic vinyl compound based on a total weight of the block copolymer before hydrogenation, wherein the thermoplastic elastomer (A) is at least one member selected from the group consisting of polystyrene-polyisoprene-polystyrene block copolymers, polystyrene-poly(isoprene-butadiene)-polystryene block copolymers and polystyrene-polybutadiene-polystyrene block copolymers, and wherein the polyvinyl acetal (B) is contained in an amount from 5 to 70 parts by mass in terms of 100 parts by mass of the thermoplastic elastomer (A),
Dependencies are inferred from the claim text.