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US 4,393,020 AGranted
Method for manufacturing a fiber-reinforced thermoplastic molded article
AssigneeThe Standard Oil Company
InventorsGeorge S. Li, John F. Jones, William M. Giffen, Jr.
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Abstract
Molded fiber-reinforced thermoplastic articles are prepared by a novel two-step process involving an in situ polymerization of monomers onto the fiber followed by compression molding of the product.
Claims14
The method for manufacturing a molded article from a fiber-reinforced thermoplastic resin comprising
- (A) copolymerizing at least two vinyl monomers in the presence of fibers which are unidirectionally disposed to produce a resin-fiber composite composed of from about 60 to 95% by weight of fibers and correspondingly from about 5 to 40% by weight of resin, and
- (B) compression molding the substantially oriented resin-fiber composite at a suitable temperature and pressure to form said molded article.
Dependencies are inferred from the claim text.