Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1981-05-18
1982-10-26
McCamish, Marion
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156285, 156295, 428286, 428287, 428288, 428290, 428327, 428367, 428408, 428902, B32B 516
Patent
active
043562280
ABSTRACT:
A carbon fiber-reinforced moldable sheet is provided. The moldable sheet comprises a thermoplastic resin and at least two reinforcing agents differing in the length/diameter ratio, which are incorporated with the thermoplastic resin. One reinforcing agent (A) contained in the composite sheet is a carbon fiber having a length/diameter ratio of 200 to 30,000 and the other reinforcing agent (B) is a fibrous and/or powdery reinforcer having a length/diameter ratio of less than 50, and the contents of the reinforcers (A) and (B) in the moldable sheet are 5 to 30% by volume and at least 5% by volume, respectively, the sum of the contents of the reinforcing agents (A) and (B) being in the range of from 20 to 50% by volume. The reinforcing effect of the carbon reinforcing fiber (A) is enhanced by the fibrous and/or powdery reinforcing agent (B) filled among spaces of reinforcing fibers (A). Therefore, molded articles made therefrom are excellent in mechanical properties and appearance and light in weight.
REFERENCES:
patent: 4269884 (1981-05-01), Della Vecchia et al.
Kitanaka Minoru
Kobayashi Hirokazu
McCamish Marion
Miller Austin R.
Toray Industries Inc.
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