The glass fiber binder for fiber reinforcement unsaturated polyester resin additional strength,

摘要

PPROBLEM TO BE SOLVED: To provide a glass fiber sizing agent for producing fiber-reinforced unsaturated polyester resins that have good surface appearance with no appearance defect as well as excellent converging properties, workability, formability, mechanical strength, resistance to water and to hot water and provide glass fibers. PSOLUTION: The sizing agent comprising 100 pts.mass of a vinyl acetate polymer, 30 to 70 pts.mass of polyurethane and 30 to 70 pts.mass of a saturated polyester is coated on glass fibers. PCOPYRIGHT: (C)2005,JPO&NCIPI