High modulus thermoplastic composites

Details High modulus thermoplastic composites High modulus thermoplastic composites

1988-09-13

1991-03-19

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524496, 524592, 524611, C08K 706, C08K 704

Patent

active

050011847

ABSTRACT:
Reinforced composite materials having a thermoplastic matrix and at least 30% by volume and preferably at least 35% by volume of reinforcing filaments, at least 25% by volume being pitch based graphite fibres, are produced having a longitudinal flexural modulus according to ASTM D790-81 of at least 250 GN/m.sup.2. Impregnation of very fragile, inflexible pitch based graphite filaments is achieved using supporting filaments of greater robustness to the abrasion encountered in impregnation processes and, optionally, severing the filaments during the process if products containing only pitch based graphite filaments are required.

REFERENCES:
patent: 4588538 (1986-05-01), Chung et al.
patent: 4842933 (1989-06-01), Cizmechioglu

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