REINFORCED POLY(PHENYLENE ETHER)-POLYSILOXANE BLOCK COPOLYMER COMPOSITION, AND ARTICLE COMPRISING SAME

摘要

A reinforced poly(phenylene ether)-polysiloxane block copolymer composition includes specific amounts of a poly(phenylene ether)-polysiloxane block copolymer reaction product, a flame retardant, and a reinforcing filler. The composition exhibits a desirable balance of flame retardancy, heat resistance, and stiffness relative to a corresponding poly(phenylene ether) composition, and it is useful to fabricate articles including fuser holders for electrophotographic copiers.

主权项

1. A composition, comprising:
30 to 91 weight percent of a poly(phenylene ether)-polysiloxane block copolymer reaction product comprising a poly(phenylene ether) and a poly(phenylene ether)-polysiloxane block copolymer; 4 to 25 weight percent of a flame retardant comprising an organophosphate ester, a phosphazene, or a combination thereof; and 5 to 40 weight percent of a reinforcing filler; wherein all weight percents are based on the total weight of the composition.