Patent ID: 9434840
Filing Date: 2016-09-06
CPC Classification: C08G,C08K,C08L

Claim Text:
1. A polycarbonate-based resin composition, comprising: (A) 100 parts by mass of a resin mixture comprising  and a constituent unit represented by a general formula (II): wherein an average number of repetitions of the constituent unit represented by formula (II) is 80 to 500, and (B) 0.01 to 0.15 part by mass of an alkali metal salt, an alkaline earth metal salt, or both, of an organosulfonic acid; and (C) 0.1 to 1 part by mass of a mixed powder comprising polytetrafluoroethylene particles and organic polymer particles, wherein: a content of a polyorganosiloxane block moiety comprising the constituent unit represented by formula (II) in the resin mixture (A) is 2 to 30 mass %; the composition is free of an organohalogen-based flame retardant and an organophosphate-based flame retardant; R X represents a single bond, an alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, —S—, —SO—, —SO R a and b each independently represent an integer of 0 to 4; I represents an average number of repeating units and represents an integer of 80 to 500; a notched Izod impact strength of the composition at 23° C. is at least 78 kJ/m a notched Izod impact strength of the composition at −40° C. is greater than 43 kJ/m and the composition is free of an organic polymer that comprises styrene, a (meth)acrylate-based monomer, and butadiene.