Composite materials of reinforced fibers

Details Composite materials of reinforced fibers Composite materials of reinforced fibers

1987-09-18

1989-08-22

Ives, P. C.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428367, 428375, 428379, 428372, 428392, 428396, 428408, 428413, 428414, D02G 300, B32B 900, B05D 312

Patent

active

048595330

ABSTRACT:
The present invention relates to advanced composite materials composed of reinforced fibers, and a polyvinyl formal and an epoxy resin composition hardened by dicyandiamide and/or a urea derivative. A specific polyvinyl formal resin and epoxy resin composition that is resistant to phase separation is disclosed. Also disclosed is a polyvinyl formal of 5 microns or less in average grain size finely dispersed in an epoxy resin composition which has enhanced tensile strength and elongation in the direction perpendicular to the fiber direction.

REFERENCES:
patent: 4518653 (1985-05-01), McWilliams et al.
patent: 4555446 (1985-11-01), Sumida et al.

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