Patent ID: 7994254
Filing Date: 2011-08-09
Classification: C08L

Abstract:
1. A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate; 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer comprising wherein R is independently at each occurrence the same or different C E has an average value of 10 to 100, M can be the same or different, and can be a halogen, cyano, nitro, C n is independently 0, 1, 2, 3, or 4, and R 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane units, based on the total weight of the polysiloxane-polyimide copolymer; wherein a 3.2 mm thick molded sample comprising the composition has less than or equal to 8% haze and at least 80% luminous transmittance, measured in accordance with ASTM D1003-00, and a 3.2 mm thick molded sample comprising the composition retains more than 50% of its initial notched Izod impact strength of 6 to 20 ft-lb/in at 23° C. after hydro-aging for 5 days at 100° C., measured in accordance with ASTM D256: 2004.