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:
Dec. 26, 2017
Filed:
Feb. 05, 2013
Toray Industries, Inc., Tokyo, JP;
Katsuhiro Miyoshi, Nagoya, JP;
Takashi Shimada, Otsu, JP;
Takafumi Hashimoto, Nagoya, JP;
Tetsuya Ohara, Otsu, JP;
Tomonori Iizuka, Nagoya, JP;
Shoji Nakashima, Nagoya, JP;
Toray Industries, Inc., , JP;
Abstract
A carbon fiber composite material includes the material is made of carbon fibers and a thermoplastic resin; the proportion Y, relative to the total weight of carbon fibers, of carbon fiber bundles for which Mn/(Ln×D) is 8.5×10(mg/mm) or more, is 30≦Y<90 (wt %); the average value X of Mn/Ln for the carbon fiber bundles is 1.1×10≦X≦8.1×10(mg/mm); and Y satisfies Y≧100X+30, wherein Mn: weight of carbon fiber bundles, Ln: fiber length of carbon fibers, D: fiber diameter of carbon fibers. The carbon fiber composite material combines high flowability and mechanical properties, has few variations in mechanical properties and shows an excellent adaptability of carbon fibers for small parts such as ribs.