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.

Date of Patent:
Feb. 06, 2018

Filed:

Jul. 25, 2013
Applicant:

Teijin Limited, Osaka-shi, Osaka, JP;

Inventors:

Naoaki Sonoda, Matsuyama, JP;

Yuhei Konagai, Matsuyama, JP;

Katsuyuki Hagihara, Matsuyama, JP;

Assignee:

Teijin Limited, Osaka-Shi, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 7/02 (2006.01); C08J 5/04 (2006.01); C08K 7/06 (2006.01); D04H 1/4218 (2012.01); D04H 1/4242 (2012.01); D04H 1/4342 (2012.01); D04H 1/587 (2012.01);
U.S. Cl.
CPC ...
C08K 7/06 (2013.01); C08J 5/047 (2013.01); D04H 1/4218 (2013.01); D04H 1/4242 (2013.01); D04H 1/4342 (2013.01); D04H 1/587 (2013.01);
Abstract

A random mat contains reinforcing fibers having an average fiber length of 3 to 100 mm and a thermoplastic resin, the reinforcing fiber contains reinforcing fiber bundle (A) defined as the bundle composed of the reinforcing fibers of a critical number of single fiber (defined by the following formula (1)) or more, an average thickness of the reinforcing fiber bundles (A) is 100 μm or less, and the number (n) of the reinforcing fiber bundles (A) per unit weight (g) of the reinforcing fibers satisfies the following formula (I): Critical number of single fiber=600/D (1) (wherein D is the average fiber diameter (μm) of the reinforcing fiber), and 0.65×10/L<N (I) (wherein L is the average fiber length (mm) of the reinforcing fiber).


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