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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 10808091 B1

PDFFull Text
Date of Patent:
Oct. 20, 2020

Filed:

Sep. 14, 2015

Notched pre-preg and notched pre-preg sheet

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Ichiro Taketa, Iyo-gun, JP;

Yuzo Fujita, Iyo-gun, JP;

Nobuyuki Arai, Iyo-gun, JP;

Narumichi Sato, Iyo-gun, JP;

Assignee:

Toray Industries, Inc., Tokyo, JP;

Attorney:

DLA Piper LLP (US)

Primary Examiner:

Brian Handville

Int. Cl.
CPC ...
C08J 5/24 (2006.01); B32B 5/12 (2006.01); B32B 3/26 (2006.01); B32B 27/36 (2006.01); B32B 15/09 (2006.01); B32B 27/28 (2006.01); B32B 15/14 (2006.01); B32B 15/088 (2006.01); B32B 5/02 (2006.01); B32B 27/30 (2006.01); B32B 5/26 (2006.01); B32B 29/02 (2006.01); B32B 27/10 (2006.01); B32B 15/082 (2006.01); B32B 15/085 (2006.01); B32B 27/12 (2006.01); B32B 27/32 (2006.01); B32B 7/04 (2019.01); B32B 27/34 (2006.01); B32B 15/20 (2006.01); B32B 15/08 (2006.01); B32B 5/10 (2006.01); B32B 27/08 (2006.01); C08J 5/04 (2006.01); B29C 43/12 (2006.01);
U.S. Cl.
CPC ...
C08J 5/24 (2013.01); B32B 3/266 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 5/026 (2013.01); B32B 5/10 (2013.01); B32B 5/12 (2013.01); B32B 5/26 (2013.01); B32B 7/04 (2013.01); B32B 15/08 (2013.01); B32B 15/082 (2013.01); B32B 15/085 (2013.01); B32B 15/088 (2013.01); B32B 15/09 (2013.01); B32B 15/14 (2013.01); B32B 15/20 (2013.01); B32B 27/08 (2013.01); B32B 27/10 (2013.01); B32B 27/12 (2013.01); B32B 27/281 (2013.01); B32B 27/283 (2013.01); B32B 27/285 (2013.01); B32B 27/286 (2013.01); B32B 27/288 (2013.01); B32B 27/302 (2013.01); B32B 27/304 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/322 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 29/02 (2013.01); C08J 5/042 (2013.01); B29C 43/12 (2013.01); B32B 2255/06 (2013.01); B32B 2255/10 (2013.01); B32B 2255/12 (2013.01); B32B 2255/205 (2013.01); B32B 2255/26 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0269 (2013.01); B32B 2262/10 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2307/54 (2013.01); B32B 2605/08 (2013.01); B32B 2605/18 (2013.01); C08J 2363/02 (2013.01); C08J 2377/00 (2013.01);
Abstract

An intermediate base material has high handleability and shape conformity to complicated shapes and serves to perform high-yield production, even by low pressure molding, of fiber reinforced plastic material that do not suffer from significant generation of molding defects, such as creases and voids, that can cause a decrease in strength and that has good mechanical characteristics, decreased variations therein, and high dimensional stability. The prepreg includes a layer containing reinforcement fibers impregnated with a resin composition and the impregnation rate with the resin composition in the prepreg is in a predetermined range. It is characterized by being an incised prepreg having a plurality of incisions, being at least partly formed of reinforcement fibers with a predetermined fiber length, and having a reinforcement fiber content by volume Vf in a predetermined range.

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