Patent ID: 9732220
Date: 2017-08-15
CPC Classifications: C08K,C08L

Claim:
1. A thermoplastic molding composition comprising: A) 50 to 98 wt. % aromatic poly(ester) carbonate having a weight-average molecular weight of at least 25,000; B) a flame retardant; C) 1 to 20 wt. % of a graft (co)polymer having a core-shell morphology, including a grafted shell that contains polymerized alkyl(meth)acrylate and a composite rubber core that contains interpenetrated and inseparable polyorganosiloxane and poly(meth)alkyl acrylate components, wherein said core is in the form of particles having median particle size of 0.05 to 5 microns and glass transition temperature below 0° C., and wherein weight ratio of polyorganosiloxane/poly(meth)alkylacrylate/rigid shell is 5-90/5-90/5-15; D) greater than zero wt. % to 7.0 wt. % aluminum oxide particles having a particle size (d wherein the sum of the wt. %, totals 100 and wherein the composition exhibits an increased gloss level at 20 degrees over that of a similar composition not containing aluminum oxide.