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AssigneesZeon Corporation, Zeon Kasei Co., Ltd.
InventorsKenji Tsukakoshi, Shuichi Akita, Kuniaki Goto
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An electrically conductive elastomer film comprising (i) a thermoplastic elastomer and (ii) 5 to 100 parts by weight, based on 100 parts by weight of the thermoplastic elastomer, of an electrically conductive filler, and having a volume resistance of 0.1 to 5 Ωcm as measured in the direction perpendicular to the film plane. This film is produced by a casting process wherein a releasable base is coated with a solution prepared by dissolving or dispersing 5 to 30 parts by weight of the sum of a thermoplastic elastomer and an electrically conductive filler in 100 parts by weight of an organic solvent; the thus-formed coating is dried; and then the thus-formed film is released from the releasable base.
An electrically conductive elastomer film comprising (i) 5 to 70% by weight of at least one thermoplastic elastomer selected from the group consisting of thermoplastic vinyl aromatic hydrocarbon-conjugated diene block copolymers and hydrogenation products thereof, and (ii) 5 to 100 parts by weight, based on 100 parts by weight of the thermoplastic elastomer, of electrically conductive carbon having a specific surface area of 20 m2/g to 2,000 m2/g, said film having a volume resistance of 0.1 to 5 Ωcm as measured in the direction perpendicular to the film plane.
An electrically conductive elastomer composition comprising (i) at least one thermoplastic elastomer selected from the group consisting of thermoplastic vinyl aromatic hydrocarbon-conjugated diene block copolymers and hydrogenation products thereof, (ii) 5 to 100 parts by weight, based on 100 parts by weight of the thermoplastic elastomer, of electrically conductive carbon having a specific surface area of 20 m2/g to 2,000 m2/g, and (iii) 100 to 1,000 parts by weight, based on 100 parts by weight of the thermoplastic elastomer, of a solvent capable of dissolving the thermoplastic elastomer.
The electrically conductive elastomer film according to clam 1, wherein the said thermoplastic elastomer is a hydrogenated aromatic hydrocarbon-conjugated diene block copolymer.
The electrically conductive elastomer film according to clam 11, wherein the thermoplastic elastomer is a hydrogenated thermoplastic vinyl aromatic hydrocarbon-conjugated diene block copolymer composed of (a) at least two blocks A predominantly comprised of vinyl aromatic hydrocarbon and (b) at least one block B predominantly comprised of hydrogenated conjugated diene.
Dependencies are inferred from the claim text.