Denka Company Limited

Ryosuke Yanaka

Junpei Fujiwara

Yusuke Masuda

Yuko Fukuda

A layered sheetincludes a substrate layer, and surface layersandconfigured to be layered on at least one surface of the substrate layer. The substrate layercontains a first thermoplastic resin and inorganic fillers. The surface layersandcontain a second thermoplastic resin and a conductive material. A content of the inorganic fillers in the substrate layeris 0.3 to 28 mass % based on a total amount of the substrate layer.

Layered sheet, container, carrier tape, and electronic component packaging body

A layered sheet has a substrate layer and surface layers provided on both surfaces of the substrate layer, wherein the surface layers contain 50 to 90 mass % of component (A) defined below and 10 to 50 mass % of component (B) defined below relative to the overall mass of the surface layer; the substrate layer is composed of a vinyl aromatic hydrocarbon resin composition containing monomer units derived from conjugated dienes; and a percentage of the monomer units derived from the conjugated dienes in the substrate layer is 6 to 14 mass % relative to all monomer units in the vinyl aromatic hydrocarbon-based resin composition. Component (A) is a rubber-modified (meth)acrylic acid ester-vinyl aromatic hydrocarbon copolymer in which the percentage of a conjugated diene rubber component is 5 to 25 mass %. Component (B) is a polymeric antistatic agent.

Layered sheet, electronic component packaging container, and electronic component packaging

A laminated sheet with a cover material, an adhesive cover tape, and an electronic component packaging container molded. A laminated sheet having a surface layer on both sides of a substrate layer, and the substrate layer includes 30 to 70 mass % of a component mentioned below, 70 to 30 mass % of a component mentioned below, and 0 to 30 mass % of a recycled material of the laminated sheet to the total mass of the substrate layer. The component is a rubber modified (meth)acrylic acid ester-vinyl aromatic hydrocarbon copolymer having a conjugated diene rubber component content of 5 to 15 mass %. The component is a vinyl aromatic hydrocarbon-conjugated diene block copolymer containing 15 to 30 mass % of monomeric units derived from conjugated dienes. The component is at least one polymer selected from the group consisting of a vinyl aromatic hydrocarbon polymer and a rubber modified vinyl aromatic hydrocarbon polymer.

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Isesaki, Japan

Ryosuke Yanaka