Reinforced poly(phenylene ether) compositions, and articles prepared therefrom
AssigneeSabic Global Technologies B.V.
InventorsYukiyoshi Chiku, Sho Sato
Life of this patent
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Abstract
A composition includes specific amounts of a poly(phenylene ether), a poly(phenylene ether)-polysiloxane block copolymer, a homopolystyrene, a flame retardant, and a reinforcing filler. The composition exhibits a desirable balance of flame retardancy, heat resistance, stiffness, and melt flow. Articles that can be prepared from the composition include frames and chassis of office equipment, fuser module parts for printers, copiers, and facsimile machines, cooling fan blades, cooling fan housings, parts for automotive kinetic energy recovery systems, and parts for electric vehicle junction boxes.
Claims18
A composition comprising, based on the total weight of polymers and fillers:
- 0.5 to 91 weight percent of a poly(phenylene ether)-polysiloxane block copolymer reaction product comprising a first poly(phenylene ether) and a poly(phenylene ether)-polysiloxane block copolymer;
- 5 to 90.5 weight percent of a second poly(phenylene ether);
- 1 to 50 weight percent of homopolystyrene;
- 3 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 reinforcing filler.
An article comprising a composition comprising, based on the total weight of polymers and fillers:
- 0.5 to 91 weight percent of a poly(phenylene ether)-polysiloxane block copolymer reaction product comprising a first poly(phenylene ether) and a poly(phenylene ether)-polysiloxane block copolymer;
- 5 to 90.5 weight percent of a second poly(phenylene ether);
- 1 to 50 weight percent of homopolystyrene;
- 3 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 reinforcing filler.
Dependencies are inferred from the claim text.