Method for making fiber-reinforced plastics

Details Method for making fiber-reinforced plastics Method for making fiber-reinforced plastics

1988-04-08

1990-05-22

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

264174, 26421121, 26421123, 26432818, 264349, 264DIG53, B29C 4700

Patent

active

049275798

ABSTRACT:
A method for adding intact fiber reinforcing material into thermoplastic resin compositions for toughening purposes without breakage of the fibers, including blending a polymeric solution and chopped fibers in a mixture at low to medium shear, injecting the resulting mixture into an extruder with a resin to be reinforced at an entry point positioned very near a vacuum point, and then removing the solvent for recycle while the reinforcing glass fiber and polymer blend is extruded.

REFERENCES:
patent: 3720641 (1973-03-01), Berardinelli et al.
patent: 3931094 (1976-01-01), Segal et al.
patent: 4006209 (1977-02-01), Chiselko et al.
patent: 4015828 (1977-04-01), Miles
patent: 4288563 (1981-09-01), Thorpe
patent: 4657952 (1987-04-01), Kerschbaumer et al.

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