公开(公告)号：US12154818B2

公开(公告)日：2024-11-26

申请号：US17793538

申请日：2021-03-08

Applicant: DENKA COMPANY LIMITED

Inventor： Yuko Fukuda ,  Junpei Fujiwara ,  Ryosuke Yanaka

IPC: B32B27/20 ,  B32B27/08 ,  H01L21/683

Abstract: A layered sheet 10 includes a substrate layer 1, and surface layers 2 and 3 configured to be layered on at least one surface of the substrate layer 1. The substrate layer 1 contains a first thermoplastic resin and inorganic fillers. The surface layers 2 and 3 contain a second thermoplastic resin and a conductive material. A content of the inorganic fillers in the substrate layer 1 is 0.3 to 28 mass % based on a total amount of the substrate layer.

公开(公告)号：US11292233B2

公开(公告)日：2022-04-05

申请号：US16954340

申请日：2019-01-23

Applicant: DENKA COMPANY LIMITED

Inventor： Ryosuke Yanaka ,  Yusuke Masuda

IPC: B32B25/04 ,  C08F220/14 ,  C08F212/08 ,  C08F236/06 ,  B32B25/16 ,  B65D65/40 ,  H01L21/683 ,  H05K13/00

Abstract: 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.

公开(公告)号：US12119255B2

公开(公告)日：2024-10-15

申请号：US17793538

申请日：2021-03-08

Applicant: DENKA COMPANY LIMITED

Inventor： Yuko Fukuda ,  Junpei Fujiwara ,  Ryosuke Yanaka

IPC: B32B27/20 ,  B32B27/08 ,  H01L21/683

CPC classification number: H01L21/6836 ,  B32B27/08 ,  B32B27/20 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2260/046 ,  B32B2264/108 ,  B32B2305/30 ,  B32B2313/04 ,  B32B2398/20 ,  B32B2439/02

Abstract: A layered sheet 10 includes a substrate layer 1, and surface layers 2 and 3 configured to be layered on at least one surface of the substrate layer 1. The substrate layer 1 contains a first thermoplastic resin and inorganic fillers. The surface layers 2 and 3 contain a second thermoplastic resin and a conductive material. A content of the inorganic fillers in the substrate layer 1 is 0.3 to 28 mass % based on a total amount of the substrate layer.

公开(公告)号：US11701874B2

公开(公告)日：2023-07-18

申请号：US17604341

申请日：2020-04-16

Applicant: DENKA COMPANY LIMITED

Inventor： Ryosuke Yanaka ,  Junpei Fujiwara

IPC: B32B27/30

CPC classification number: B32B27/30

Abstract: 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.