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:
Feb. 28, 2017
Filed:
Oct. 14, 2013
Teijin Limited, Osaka-shi, Osaka, JP;
Katsuyuki Hagihara, Matsuyama, JP;
Yuhei Konagai, Matsuyama, JP;
Naoaki Sonoda, Matsuyama, JP;
Masatomo Teshima, Matsuyama, JP;
Teijin Limited, Osaka-Shi, Osaka, JP;
Abstract
There is provided a fiber-reinforced composite material is constituted by reinforcing fibers with an average fiber length of 5 mm to 100 mm and a thermoplastic resin, in which in a viscoelastic characteristic that is defined by following formulas (1) and (2), an average value in a range of −25° C. of the melting point of a matrix resin to +25° C. of the melting point of a matrix resin satisfies following formula (3):tan δ=  (1)tan δ'=×tan δ/(100−)  (2)0.01≦tan δ′≦0.2  (3)