Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1982-06-21
1984-07-03
Bell, James J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
428300, 428391, 428392, 428429, 428447, B32B 1704
Patent
active
044579705
ABSTRACT:
Treated glass fiber strands with improved processing characteristics such as payout and reduced fuzz and fly in forms such as continuous glass fiber strands, chopped glass fiber strands or mats of continuous glass fiber strands, chopped glass fiber strands or mixtures thereof are useful in reinforcing thermoplastic polymers. The treated glass fiber strands have on the glass fibers comprising the glass fiber strand an aqueous treating composition or a dried residue thereof. The aqueous treating composition has a vinyl-containing coupling agent in an amount of at least 0.05 weight percent of the aqueous composition, an epoxidized thermoplastic polymer or copolymer having about 1 to about 12 parts of epoxy to about 100 parts of the copolymer, an organo-reactable silane coupling agent in an unhydrolyzed and/or partially hydrolyzed condition or an interaction product of the epoxidized polymer or copolymer and organo-reactable silane coupling agent, and a glass fiber lubricant. Alternatively, the aqueous sizing composition may also have a crosslinkable film forming polymer. The treated glass fiber strand has an amount of the treating composition of at least about 0.3 weight percent of the treated strand.
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Das Balbhadra
Melle Carl A.
Bell James J.
PPG Industries Inc.
Stachel Kenneth J.
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