Patent ID: 9303119
Filing Date: 2016-04-05
CPC Classification: B60L,C08G,C08K,C08L,H01H

Claim Text:
1. A current breaker case comprising a polycarbonate resin composition that comprises a polycarbonate-polyorganosiloxane copolymer and has a viscosity-average molecular weight of 18000 to 25000, wherein the polycarbonate resin composition comprises a polycarbonate-based resin (A) comprising: 5 to 100 mass % of a polycarbonate-polyorganosiloxane copolymer (A-1) that comprises, in its main chain, a polycarbonate block composed of structural units represented by the formula (I) and a polyorganosiloxane block composed of structural units represented by formula (II); the content of the polyorganosiloxane block being 2 to 20 mass %; and 0 to 95 mass % of an aromatic polycarbonate (A-2) that is other than the (A-1): wherein R X is a single bond, an alkylene group including 1 to 8 carbon atoms, an alkylidene group including 2 to 8 carbon atoms, a cycloalkylene group including 5 to 15 carbon atoms, a cycloalkylidene group including 5 to 15 carbon atoms, —S—, —SO—, —SO a and b are an integer of 0 to 4; R Y is a divalent organic group including one or more selected from an aliphatic chain and an aromatic ring; u is 0 or 1; and n is an average repeating number of the siloxane group and is an integer of 20 to 600.