Composite prepreg and tennis rackets using the same

Details Composite prepreg and tennis rackets using the same Composite prepreg and tennis rackets using the same

1994-11-09

1995-12-26

Ryan, Patrick J.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428374, 428375, 428392, 428397, 428408, B32B 2702

Patent

active

054786479

ABSTRACT:
Disclosed is a composite prepreg for producing a tennis racket which is light and tough and superior in flexibility and vibration absorption abilities. The composite prepreg comprises thermosetting resin and reinforcing fibers, wherein the reinforcing fibers are a combination of (a) aromatic polyamide or polyester fibers and (b) carbon fibers and the fibers (a) and (b) are arranged with certain regularity. The present invention also provides a tennis racket comprising a circular frame constituting a ball hitting area and a shaft connecting with the circular frame, the frame and shaft having a plurality of layers structured so that at least one layer is formed from the above mentioned composite prepreg.

REFERENCES:
patent: 4532275 (1985-07-01), Aito et al.

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