The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 1994
Filed:
Apr. 23, 1992
Teijin Limited, Osaka, JP;
Abstract
A fiber-reinforced thermoplastic sheet such as a flame-resistant, fiber-reinforced thermoplastic sheet comprising at least one first layer formed by impregnating a woven or knitted fabric of continuous carbon fibers with a matrix resin of a thermoplastic resin and at least one second layer formed by impregnating a fiber structure material of a heat-resistant fiber with a matrix resin of a thermoplastic resin, the above first layer(s) and the second layer(s) being laminated integrally, the second layer having the heat-resistant fibers substantially uniformly distributed in the matrix resin in the cross section of the sheet and substantially having no voids of which the diameter exceeds the fiber diameter of the heat-resistant fibers, the fiber structure material, used in the second layer, having a fiber-entangling strength of at least 1.0 kg/mm.sup.2 in any directions crossing at right angles; and a process for the production thereof.