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US 4,400,425 AGranted
High impact chemically activated polyester fiber reinforced plastic composite
OwnerVladimir Vanhainventor
Life of this patent
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Abstract
A reinforced plastic composite structure is disclosed which includes a fiberglass reinforced plastic structure wherein adhesive-activated thermally stabilized polyester fibers are included affording highly improved impact resistance.
Claims7
A high impact-fiber reinforced plastic composite structure comprising:
- a resin matrix;
- a plurality of treated chemically-activated polyester fibers included with said resin matrix and reinforcing fibers;
- said polyester fibers being treated to have an adhesively activated surface prior to inclusion in said matrix enhancing the degree of fiber to resin adhesion in said resin matrix providing coherent bonding of said composite structure under high impact loads to effectively resist structural separation after initial impact.
In a fiberglass reinforced thermoset resin construction, the improvement comprising:
- inclusion of chemically-activated polyester fiber or fabric treated to have a chemically-activated surface prior to inclusion as an additional reinforcing element to increase the impact strength of the composite construction.
Dependencies are inferred from the claim text.