Abstract:
A size composition for glass fibers, and glass fibers coated therewith, is disclosed. The size comprises an unsaturated, water-emulsifiable polyester resin, an ethylene-vinyl acetate copolymer emulsion and a polyvinyl acetate-organo silane copolymer, the size being suitable for application to fiberglass roving employed to reinforce sheet and bulk molding compounds.
Abstract:
A size composition for glass fibers, and glass fibers coated therewith, is disclosed. The size comprises an unsaturated, water-emulsifiable polyester resin, an ethylene-vinyl acetate copolymer emulsion and a polyvinyl acetate-organo silane copolymer, the size being suitable for application to fiberglass roving employed to reinforce sheet and bulk molding compounds.
Abstract:
Disclosed are gun roving glass fibers coated with an aqueous-based size comprising an epoxidized polyvinyl acetate copolymer in combination with a vinyl acetate-ethylene copolymer and a vinyl acetate copolymer.