Glass size compositions

Details Glass size compositions Glass size compositions

C - Chemistry, Metallurgy

03

C

117/185, 400/411

C03C 25/26 (2006.01)

Patent

CA 1132281

ABSTRACT OF THE DISCLOSURE An aqueous glass fiber sizing composition comprising from about 1 to about 13 weight percent of an unsaturated, water-emulsifiable polyester resin, from about 1 to about 10 weight percent of an ethylene vinyl acetate emulsion and from about 1 to about 15 weight percent of a polyvinyl acetate- organo silane copolymer, substantially insoluble in styrene and having a silane level of from about 1 to about 7 weight percent is disclosed. Glass fibers coated with the sizing composition and molding compositions comprising a thermo- setting resin and the coated glass fibers are also disclosed. The sizing composition serves to facilitate the handling of glass fibers and to form bonds between the glass fibers and molding compositions.

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