Abstract:
Disclosed are polymer compositions, comprising: (a) a poly(phenylene ether); (b) a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene; (c) a polybutene; (d) a flame retardant; (e) an anti-UV agent wherein the agent comprises a trisaryl-1,3,5-triazine; (f) a copolymer of ethylene and a C3-C12 alpha-olefin; and (g) a polyolefin homopolymer; wherein the polymer composition does not contain a benzotriazole-type UV absorber; all weight percents are based on the total weight of the composition; and wherein an article made from the composition: (i) is substantially stainless; (ii) exhibits a CIELAB color shift, (ΔE) of 3 or less after 168 hours of heat exposure at 75° C.; and (iii) exhibits a CIELAB color shift, (ΔE) of 12 or less after 300 hours of xenon arc exposure according to ASTM D 4459. Also disclosed are processes for making the compositions as well as articles derived therefrom.
Abstract:
Disclosed herein is a flame retardant composition comprising 10 to 90 weight percent of a linear polycarbonate; a branched polycarbonate; 10 to 70 weight percent of a polysiloxane-polycarbonate copolymer; and 1 to 20 weight percent of a phosphazene compound; were all weight percents are based on the total weight of the composition. Disclosed herein too is a method comprising blending 10 to 90 weight percent of a linear polycarbonate; a branched polycarbonate; 10 to 70 weight percent of a polysiloxane-polycarbonate copolymer; and 1 to 20 weight percent of a phosphazene compound; to form a flame retardant composition; were all weight percents are based on the total weight of the composition.
Abstract:
Disclosed herein is a flame retardant composition comprising 10 to 90 weight percent of a linear polycarbonate; 5 to 50 weight percent of a polysiloxane-polycarbonate copolymer; where the polysiloxane-polycarbonate copolymer comprises 10 weight percent or more of polysiloxane and where the molecular weight of the polysiloxane is 30,000 grams per mole or greater; and 1 to 20 weight percent of a phosphazene compound; where all weight percents are based on the total weight of the composition.
Abstract:
Disclosed herein is a flame retardant composition comprising 20 to 90 weight percent of a polycarbonate composition; where the polycarbonate composition comprises a post-consumer recycle polycarbonate and a polysiloxane-carbonate copolymer; and 1 to 20 weight percent of a phosphazene compound; where all weight percents are based on a total weight of the flame retardant composition. Disclosed herein too is a flame retardant composition comprising 50 to 90 wt % of a polycarbonate composition; where the polycarbonate composition comprises a polysiloxane-carbonate copolymer; 0.5 to 10 weight percent of a silicone oil; and 1 to 20 weight percent of a phosphazene compound; where all weight percents are based on the total weight of the flame retardant composition; where the composition displays a flame retardancy of 5VA at a thickness of 2.0 millimeters or greater; when tested as per a UL-94 protocol.
Abstract:
Disclosed herein is a flame retardant composition comprising 10 to 90 weight percent of a linear polycarbonate; 5 to 50 weight percent of a polysiloxane-polycarbonate copolymer; where the polysiloxane-polycarbonate copolymer comprises 10 weight percent or more of polysiloxane and where the molecular weight of the polysiloxane is 30,000 grams per mole or greater; and 1 to 20 weight percent of a phosphazene compound; where all weight percents are based on the total weight of the composition.
Abstract:
Disclosed herein is a flame retardant composition comprising 10 to 90 weight percent of a linear polycarbonate; a branched polycarbonate; 10 to 70 weight percent of a polysiloxane-polycarbonate copolymer; and 1 to 20 weight percent of a phosphazene compound; were all weight percents are based on the total weight of the composition. Disclosed herein too is a method comprising blending 10 to 90 weight percent of a linear polycarbonate; a branched polycarbonate; 10 to 70 weight percent of a polysiloxane-polycarbonate copolymer; and 1 to 20 weight percent of a phosphazene compound; to form a flame retardant composition; were all weight percents are based on the total weight of the composition.