| abstract |
1477706 Hydrogenated block copolymerpolyphenylene ether composition GENERAL ELECTRIC CO 29 July 1974 [13 Aug 1973] 33385/74 Headings C3P and C3R A composition comprises (a) a polyphenylene ether resin, (b) an hydrogenated block copolymer, containing monoalkenyl aromatic hydrocarbon polymer and conjugated diene polymer blocks prior to hydrogenation, and optionally (c) a styrene homo- or random copolymer and (d) glass fibres. The examples refer to the blending of (a) poly-(2,6-dimethyl-1,4-phenylene)ether, (b) hydrogenated poly(-styrene-bbutadiene-b-styrene), and in some cases (c) crystal polystyrene, high impact polystyrene, (d) polyethylene, tridecylphosphite, triphenyl phosphate, ZnO and ZnS. |