Surface conductive laminated sheet and electronic part packaging container

摘要

Disclosed is a surface conductive laminated sheet which comprises a base material layer containing an ABS resin as a main component, and a surface layer laminated on the surface of at least one side of the base material layer. In the laminated sheet, the ABS resin in the base material layer includes a composition made of 5-15 mass % of vinyl cyanide monomer, 45-65 mass % of diene-based rubber, and 50-20 mass % of aromatic vinyl monomer, and includes a graft rubber having a graft rate of 50-80%. The graft rubber has a mass average molecular weight (Mw) of a graft chain of 18,000-56,000, and/or has a volume average particle diameter of 0.3 to 2.0 μm. By using the laminated sheet, it is possible to obtain an electronic part packaging container, such as carrier tape etc., which has extremely few punch burrs regardless of the type of forming apparatus when punched by means of a slit method or embossing.

主权项

1. A surface conductive laminated sheet, comprising:
a substrate layer comprising an ABS resin as a main ingredient; and a surface layer laminated on a surface of the substrate layer, wherein the ABS resin comprises:
a composition comprising 5 to 15 mass % of a vinyl cyanide monomer, 45% to 65 mass % of a diene rubber, 50 to 20 mass % of an aromatic vinyl monomer, and a grafted rubber having a graft ratio of 50% to 80%; anda copolymer comprising vinyl cyanide and an aromatic vinyl, the copolymer comprising a composition comprising 20 to 40 mass % of vinyl cyanide and 60 to 80 mass % of the aromatic vinyl, and has a mass average molecular weight (Mw) of 80,000 to 120,000, and wherein the grafted rubber comprises a graft chain having a mass average molecular weight (Mw) of 18,000 to 56,000 and a volume average particle diameter of 0.3 μm to 2.0 μm.