Method for production of fiber-reinforced thermosetting resin mo

Details Method for production of fiber-reinforced thermosetting resin mo Method for production of fiber-reinforced thermosetting resin mo

1989-03-28

1992-01-07

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

65 343, 264112, 264175, 425371, 425373, B29C 4128, B29C 4132, B29C 4150

Patent

active

050789341

ABSTRACT:
In a method for the production of a fiber-reinforced thermosetting resin molding material by a procedure of leading a mixture of a liquid thermosetting resin composition with reinforcing fibers to an impregnation apparatus and deaerating the mixture and impregnating the reinforcing fibers with the resin composition, apparatus including at least one pair of vertically opposed endless belts adapted to be driven in the directions of taking in and nipping the mixture and at least one pair of vertically opposed rollers adapted to depress the mixture across the endless belts, at least one of the opposed rollers being a flexible roller possessing elasticity.

REFERENCES:
patent: 3586573 (1971-06-01), Vissers
patent: 4315965 (1982-02-01), Mason et al.
patent: 4402785 (1983-09-01), Withers
patent: 4702872 (1987-10-01), Yamamoto et al.
patent: 4973440 (1990-11-01), Tamura et al.

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