Abstract: A glass fiber-filled poly(arylene ether)/polyamide composition exhibits reduced die build-up during profile extrusion. The composition includes specific amounts of polyamide, poly(arylene ether), glass fibers, and polypropylene. The reduced die build-up means that the profile extrusion equipment needs to be shut down and cleaned less often, resulting in a substantial productivity improvement.

Abstract: A glass fiber-filled poly(arylene ether)/polyamide composition exhibits reduced die build-up during profile extrusion. The composition includes specific amounts of polyamide, poly(arylene ether), glass fibers, and polypropylene. The reduced die build-up means that the profile extrusion equipment needs to be shut down and cleaned less often, resulting in a substantial productivity improvement.

Abstract: A process for preparing a polymer composition useful as a prepreg comprises (a) melt-mixing at least one thermoplastic polymer above the glass transition temperature or melt temperature of the thermoplastic polymer with either (i) an uncured epoxy resin or (ii) an epoxy curing agent or a catalyst; (b) melt-mixing above the glass transition temperature or melt temperature of the thermoplastic polymer, the other of (i) an uncured epoxy resin or (ii) an epoxy curing agent or a catalyst to form a substantially uncured but essentially curable and/or polymerizable composition; (c) optionally forming a shaped product from the melt-mixed composition of (b); and (d) fast-curing and/or fast-polymerizing the optionally formed shaped product.