Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1983-12-23
1985-05-21
Bell, James J.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
156246, 4273898, 428375, 428391, 428392, 428396, 428415, D02G 300
Patent
active
045186537
ABSTRACT:
Glass fiber strands are produced which have a reduced tendency for strand to strand adhesion and good dispersibility or wettability in uncured polymeric materials for the production of glass fiber reinforced plastics. The glass fibers have a dried residue of an aqueous chemical treating composition. The aqueous chemical treating composition has a film forming polymeric system, gamma methacryloxy alkyltrialkoxy silane and a glass fiber lubricant in an effective lubricating amount. The film forming polymeric system has an epoxy-containing polymer or copolymer, a non-tacky film forming polymer, and polyvinyl pyrrolidone of which are aqueous soluble, dispersible or emulsifiable. The amount of the epoxy-containing polymer or copolymer is in the range of about 50 to about 70 weight percent of the solids of the aqueous chemical treating composition while the amount of the polyvinyl pyrrolidone does not exceed 25 weight percent of the solids of the aqueous chemical treating composition and the amount of the non-tacky film forming polymer is in the range of about 5 to about 20 weight percent of the aqueous chemical treating composition.
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Das Balbhadra
McWilliams Donald E.
Melle Carl A.
Bell James J.
PPG Industries Inc.
Stachel Kenneth J.
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