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:
Aug. 23, 2022
Filed:
Sep. 27, 2019
Applicant:
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Inventors:
Masahiro Ichino, Chiyoda-ku, JP;
Kazuhisa Ikeda, Chiyoda-ku, JP;
Satoshi Okamoto, Chiyoda-ku, JP;
Yuma Furuhashi, Chiyoda-ku, JP;
Assignee:
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/24 (2006.01); C08J 5/04 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C08J 5/24 (2013.01); C08J 5/042 (2013.01); C08J 5/18 (2013.01); C08J 2323/12 (2013.01); C08J 2325/18 (2013.01); C08J 2341/00 (2013.01); C08J 2377/00 (2013.01);
Abstract
A prepreg sheet () is formed by stacking a plurality of unit layers () In the unit layers (), prepreg tapes (), in which a reinforced fiber bundle is impregnated with a thermosetting matrix resin composition, are disposed in rows a plurality of times. One or more of the unit layers () has a gap (G) between adjacent prepreg tapes (), and the width thereof is 10% or less of the width of the narrower of the adjacent prepreg tapes ().