Prepreg, composite molded body and method of manufacture of the

Details Prepreg, composite molded body and method of manufacture of the Prepreg, composite molded body and method of manufacture of the

1996-09-06

1998-06-23

Nold, Charles

Stock material or miscellaneous articles

Composite

428364, 428 3691, 428 345, 428413, 428417, 428435, 4284758, B32B 2700

Patent

active

057703132

ABSTRACT:
The present invention relates to a novel composite material, that is, a prepreg, obtained by bonding a film (1) comprised of an organic polymer having substantially no melting point and having a high modulus of 700 kg/mm.sup.3 or more and a high strength of 35 kg/mm.sup.2 or more and a resin layer (2) and/or fiber-reinforced layer (3), a composite molded body, and a method of manufacturing a composite molded body.
The composite molded body obtained by bonding the film (1) and the resin layer (2) of the present invention has superior strength, excellent pliability, and large toughness in all directions. Further, the composite molded body obtained by bonding the film (1) and the fiber-reinforced resin layer (3) has both an extremely large impact resistance which could never be obtained with conventional molded bodies and also a strength and modulus greater than in the past. The molded body can be suitably used for aerospace equipment, sports goods, leisure goods, etc. making use of its light weight, corrosion resistance, and other properties in addition to the above superior proportion.

REFERENCES:
patent: 4868050 (1989-09-01), Tanaka et al.
patent: 4892774 (1990-01-01), Vallance
patent: 4954382 (1990-09-01), Riefler et al.
patent: 5597631 (1997-01-01), Furumoto et al.
Elias, Hans-Georg, "Neue Polymere Werkstoffe 1969-1974", pp. 129-149.
Enka Information Sheet: Arenka a high tensile, high modulus aramid (1981).

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