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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 8906494 B1

PDFFull Text
Date of Patent:
Dec. 09, 2014

Filed:

Dec. 17, 2012

Process for producing composite prepreg base, layered base, and fiber-reinforced plastic

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Eisuke Wadahara, Ehime, JP;

Masahiro Yamanouchi, Ehime, JP;

Ichiro Taketa, Ehime, JP;

Akihiko Kitano, Ehime, JP;

Assignee:

Toray Industries, Inc., , JP;

Attorney:

DLA Piper LLP (US)

Primary Examiner:

David Sample

Assistant Examiner:

Nicole T Gugliotta

Int. Cl.
CPC ...
B32B 7/02 (2006.01); B32B 5/16 (2006.01); B32B 27/38 (2006.01); B32B 5/02 (2006.01); B32B 27/04 (2006.01); D04H 1/74 (2006.01); B32B 5/12 (2006.01); B29B 11/16 (2006.01); B29C 43/00 (2006.01); B29C 70/02 (2006.01); B29C 70/08 (2006.01); B29C 70/20 (2006.01); B29C 70/54 (2006.01); C08J 5/24 (2006.01); B29K 105/08 (2006.01);
U.S. Cl.
CPC ...
B32B 5/12 (2013.01); B29B 11/16 (2013.01); B29C 43/003 (2013.01); B29C 70/025 (2013.01); B29C 70/086 (2013.01); B29C 70/20 (2013.01); B29C 70/545 (2013.01); C08J 5/24 (2013.01); B29C 70/202 (2013.01); B29K 2105/0854 (2013.01); B29K 2105/0872 (2013.01);
Abstract

A composite prepreg base includes a raw prepreg base comprising a fiber sheet including discontinuous reinforcing fibers arranged in one direction and having a fiber length of 1-300 mm and a matrix resin infiltrated into the fiber sheet; and an additional resin layer formed on at least one surface of the raw prepreg base. The composite prepreg base is produced by a process including (i) the step of preparing the raw prepreg base and (ii) the step of forming an additional resin layer on at least one surface of the raw prepreg base prepared. A layered base includes two or more sheets of the composite prepreg base which have been superposed so that the additional resin layer is present on at least one surface; and a fiber-reinforced plastic formed by heating and pressing the layered base.

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