Patent ID: 8440305
Filing Date: 2013-05-14
Classification: B32B,C08K,C08L,Y10T

Abstract:
1. A sheet, comprising (a) a substrate layer comprising from 21 to 87 mass % of a polycarbonate resin, from 7 to 68 mass % of a polyalkylene terephthalate resin and from 15 to 30 mass % of carbon black, relative to 100 mass % of the substrate layer, and (a1) a first surface layer comprising from 19 to 86 mass % of a polycarbonate resin, from 6 to 67 mass % of a polyalkylene terephthalate resin and from 5 to 35 mass % of carbon black, relative to 100 mass % of the first surface layer, and, (a2) optionally, a second surface layer comprising from 19 to 86 mass % of a polycarbonate resin, from 6 to 67 mass % of a polyalkylene terephthalate resin and from 5 to 35 mass % of carbon black, relative to 100 mass % of the second surface layer, wherein the first surface layer (a1) is directly laminated on one side of the substrate layer (a) by a heat lamination method, a dry lamination method, co-extrusion or extrusion coating, and the optional second surface layer (a2) is directly laminated on the opposite side of the substrate layer (a) by a heat lamination method, a dry lamination method, co-extrusion or extrusion coating, wherein the sheet has a burr incidence ratio of at most 4%, and wherein each of the first surface layer (a1) and the optional second surface layer (a2) has a surface resistivity of from 10