logo

For the Inventor, By the Inventor

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 9180653 B1

PDFFull Text
Date of Patent:
Nov. 10, 2015

Filed:

Aug. 28, 2012

Prepreg production method

Applicants:

Daiki Minamida, Ehime, JP;

Koichi Kawase, Ehime, JP;

Osamu Kuramata, Otsu, JP;

Takashi Mori, Ehime, JP;

Keita Oe, Ehime, JP;

Inventors:

Daiki Minamida, Ehime, JP;

Koichi Kawase, Ehime, JP;

Osamu Kuramata, Otsu, JP;

Takashi Mori, Ehime, JP;

Keita Oe, Ehime, JP;

Assignee:

Toray Industries, Inc., Tokyo, JP;

Attorney:

RatnerPrestia

Primary Examiner:

Michael Tolin

Int. Cl.
CPC ...
C08J 5/24 (2006.01); G01N 21/88 (2006.01); G01N 21/892 (2006.01); B32B 41/00 (2006.01); G01N 21/898 (2006.01); G01N 21/84 (2006.01); G01N 21/94 (2006.01); B29C 70/50 (2006.01); B29C 70/54 (2006.01); B32B 7/06 (2006.01); B32B 29/02 (2006.01); G01N 21/89 (2006.01);
U.S. Cl.
CPC ...
B32B 41/00 (2013.01); B29C 70/506 (2013.01); B29C 70/54 (2013.01); B32B 7/06 (2013.01); B32B 29/02 (2013.01); C08J 5/24 (2013.01); G01N 21/8422 (2013.01); G01N 21/88 (2013.01); G01N 21/8806 (2013.01); G01N 21/89 (2013.01); G01N 21/892 (2013.01); G01N 21/898 (2013.01); G01N 21/8914 (2013.01); G01N 21/8921 (2013.01); G01N 21/94 (2013.01); B32B 2041/04 (2013.01); B32B 2250/40 (2013.01); B32B 2255/12 (2013.01); B32B 2255/26 (2013.01); B32B 2262/106 (2013.01); B32B 2305/076 (2013.01); B32B 2305/08 (2013.01); B32B 2305/22 (2013.01); B32B 2307/738 (2013.01); B32B 2307/748 (2013.01); B32B 2313/04 (2013.01); B32B 2363/00 (2013.01); B32B 2377/00 (2013.01); G01N 2021/8472 (2013.01); G01N 2021/888 (2013.01); G01N 2021/8841 (2013.01); G01N 2021/8854 (2013.01); G01N 2021/8861 (2013.01); G01N 2021/8874 (2013.01); G01N 2021/8908 (2013.01); G01N 2021/8925 (2013.01);
Abstract

Provided is a method of producing prepreg including: inspecting, with an optical device, in a resin sheet made of a release paper and a resin film which is formed by coating the release paper with a resin to be impregnated into a carbon fiber bundle, the surface of the resin film, detecting a defect in the surface of the resin film which would be the cause of a defect in the prepreg to be produced, and judging the type of the detected defect; or inspecting, with an optical device, the surface of the prepreg after the release paper is separated from the prepreg sheet which is formed by impregnating a resin forming the resin film into the carbon fiber bundle, detecting defects in the surface of the prepreg, and judging the type of the detected defect.

Find Patent Forward Citations

Loading…