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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.:

US 9909253 B1

PDFFull Text
Date of Patent:
Mar. 06, 2018

Filed:

Jun. 25, 2014

Random mat, shaped product of fiber reinforced composite material, and carbon fiber mat

Applicant:

Teijin Limited, Osaka-shi, Osaka, JP;

Inventors:

Naoaki Sonoda, Matsuyama, JP;

Takeru Ohki, Matsuyama, JP;

Katsuyuki Hagihara, Matsuyama, JP;

Assignee:

Teijin Limited, Osaka-Shi, Osaka, JP;

Attorney:

Banner & Witcoff, Ltd.

Primary Examiner:

Frank J Vineis

Int. Cl.
CPC ...
D04H 1/72 (2012.01); D04H 1/4242 (2012.01); D06M 101/40 (2006.01); D06M 15/513 (2006.01); D21H 17/55 (2006.01); D04H 1/54 (2012.01); C08J 5/04 (2006.01); C08J 5/06 (2006.01); D21H 13/50 (2006.01); D21H 17/53 (2006.01); D21H 19/72 (2006.01); D04H 1/60 (2006.01); D04H 1/732 (2012.01); D21H 15/02 (2006.01);
U.S. Cl.
CPC ...
D06M 15/513 (2013.01); C08J 5/043 (2013.01); C08J 5/06 (2013.01); D04H 1/4242 (2013.01); D04H 1/54 (2013.01); D04H 1/60 (2013.01); D04H 1/72 (2013.01); D04H 1/732 (2013.01); D21H 13/50 (2013.01); D21H 15/02 (2013.01); D21H 17/53 (2013.01); D21H 17/55 (2013.01); D21H 19/72 (2013.01); C08J 2369/00 (2013.01); C08J 2377/00 (2013.01); D06M 2101/40 (2013.01);
Abstract

There is provided a random mat including carbon fibers having an average fiber length of from 3 mm to 100 mm and a thermoplastic resin, wherein a fiber areal weight of the carbon fibers is from 25 to 10,000 g/m, a proportion of carbon fiber bundles (A) constituted by single carbon filaments of a critical single fiber number or more defined by the formula (1) to the total amount of fibers in the random mat is from 40 to 99 Vol %, and an average number (N) of fibers in the carbon fiber bundles (A) satisfies the formula (2):critical single fiber number=600/  (1)2.0×10<8.0×10  (2)

Find Patent Forward Citations

Sonoda, Naoaki. (2018). Random mat, shaped product of fiber reinforced composite material, and carbon fiber mat (U.S. Patent No. 9909253). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9909253

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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