Patent ID: 9234096
Filing Date: 2016-01-12
CPC Classification: C08K,C08L

Claim Text:
1. A polycarbonate resin composition comprising 47-50 wt % of a first branched polycarbonate that is a bisphenol-A polycarbonate resin having a carbonate end-capping group derived from p-hydroxybenzonitrile (HBN) and branching derived from tris-(hydroxyphenyl)ethane (THPE) as a branching agent; 22-28 wt % of a second branched polycarbonate that is a bisphenol-A polycarbonate resin having branching derived from tris-(hydroxyphenyl)ethane (THPE) as a branching agent; 21-31 wt % of a high flow polycarbonate that is a bisphenol-A polycarbonate homopolymer having a melt volume flow rate (MVR) of between 21.9 and 31.8 cm 0.014-0.016 wt % of a first heat stabilizer that is tris(2,4-di-t-butylphenyl)phosphite; 0.016-0.017 wt % of a second heat stabilizer that is bis(2,4-dicumylphenyl)pentaerythritol diphosphite; a cyclic siloxane; a flame retardant salt; and 0.047-0.05 wt % of a hindered phenol heat stabilizer.