Strong flexible pre-impregnation of fiber reinforced thermoplast

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428213, 428214, 428215, 428224, 428225, 428257, 428258, 428259, 428902, B32B 512

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active

055209955

ABSTRACT:
A pre-impregnation has a ribbon-shaped tow of reinforcing fibers and a ribbon of thermoplastic resin laminated on the ribbon-shaped tow and fixed thereto at intervals, and the thermoplastic resin is allowed to uniformly impregnate into the ribbon-shaped tow under heat application so that a void does not take place in the ribbon-shaped tow.

REFERENCES:
patent: 3997697 (1976-12-01), Brochier
patent: 4144115 (1979-03-01), Sundberg
patent: 4445951 (1984-05-01), Lind et al.
patent: 5175034 (1992-12-01), De La Porte et al.
patent: 5238728 (1993-08-01), Aucagne
patent: 5256475 (1993-10-01), Koyanagi et al.

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