Thermoplastic polymer composition
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsAkira Saito, Akio Yamori, Hideo Morita
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Abstract
A thermoplastic polymer composition containing (i) a modified block copolymer of an aromatic vinyl compound and a conjugated diene compound, which is modified with a dicarboxylic acid or the derivative thereof, or the ionically crosslinked product of the modified block copolymer with a univalent, bivalent of trivalent metal ion and (ii) a thermoplastic polymer having a polar group. This thermoplastic polymer composition has excellent mechanical and other properties. The compatibility of each component in the thermoplastic composition is remarkably improved.
Claims49
A thermoplastic polymer composition comprising:
- (a) 1 to 99 parts by weight of a component A consisting essentially of at least one member selected from the group consisting of modified block copolymers and the ionically crosslinked products of at least one said modified block copolymer with at least one univalent, bivalent, or trivalent metal ion, said modified block copolymer comprising a block copolymer of at least one aromatic vinyl compound and at least one conjugated diene compound onto which at least one molecular unit containing at least one dicarboxylic acid group or the derivative thereof is grafted;
- and
- (b) 99 to 1 parts by weight of a component B consisting essentially of at least one thermoplastic polymer containing at least one polar group and selected from the group consisting of polyamides, polyurethanes, vinylalcohol polymers, polyacrylates, polymethacrylates, chlorinated hydrocarbon polymers, and ionomers.
A composition as claimed in claim 3, wherein the derivative of the dicarboxylic acid group of the component A is a dicarboxylic anhydride group.
A thermoplastic polymer composition comprising:
- (a) 1 through 99 parts by weight of a component A consisting essentially of a modified block copolymer, said modified block copolymer comprising a block of at least one aromatic vinyl compound and at least one conjugated diene compound onto which is grafted at least one molecular unit containing at least one dicarboxylic acid group or the derivative thereof;
- and
- (b) 99 through 1 parts by weight of a component B consisting essentially of at least one vinyl alcohol polymer.
A thermoplastic polymer composition comprising:
- (a) 1 through 99 parts by weight of a component A consisting essentially of a modified block copolymer, said modified block copolymer comprising a block copolymer of at least one aromatic vinyl compound and at least one conjugated diene compound onto which at least one molecular unit containing at least one dicarboxylic acid group or the derivative thereof is grafted;
- and
- (b) 99 through 1 parts by weight of a component B consisting essentially of at least one polyamide.
Dependencies are inferred from the claim text.