glass wire coated with an aqueous sizing composition, sizing composition for coating glass yarns, composite comprising at least one thermosetting polymeric material and glass reinforcing yarns and use of glass yarns

摘要

"GLASS YARN COATED WITH A WATER WRAPPING COMPOSITION, WRAPPING COMPOSITION FOR COATING OF GLASS YARN, UNDERSTANDING AT LEAST ONE THERMOUSURED POLYMERIC MATERIAL AND USING GLASS WIRES." The invention relates to glass yarns coated with a sizing composition comprising as sizing film-forming agents at least one polyester, at least one vinyl polyacetate and at least one polyurethane. The obtained glass yarns are used as reinforcements in the manufacture of thermosetting die castings by the open molding technique, notably by simultaneous projection of said yarns and resin, and pipes by the centrifugation technique.