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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 10927226 B1

PDFFull Text
Date of Patent:
Feb. 23, 2021

Filed:

Sep. 25, 2013

Prepreg and method for producing same

Applicant:

Toho Tenax Co., Ltd., Tokyo, JP;

Inventors:

Takaya Suzuki, Shizuoka, JP;

Hajime Sakamoto, Shizuoka, JP;

Toyoaki Ishiwata, Shizuoka, JP;

Yoshitaka Umemoto, Shizuoka, JP;

Assignee:

TOHO TENAX CO., LTD., Tokyo, JP;

Attorney:

Norris McLaughlin, P.A.

Primary Examiner:

Sheeba Ahmed

Int. Cl.
CPC ...
B32B 5/26 (2006.01); B32B 7/06 (2019.01); B32B 27/08 (2006.01); B32B 37/10 (2006.01); B32B 27/38 (2006.01); B29B 11/16 (2006.01); C08J 5/24 (2006.01); B29K 63/00 (2006.01); B29K 105/08 (2006.01); B29K 307/04 (2006.01);
U.S. Cl.
CPC ...
C08J 5/24 (2013.01); B29B 11/16 (2013.01); B32B 5/26 (2013.01); B32B 7/06 (2013.01); B32B 27/08 (2013.01); B32B 27/38 (2013.01); B32B 37/10 (2013.01); B29K 2063/00 (2013.01); B29K 2105/089 (2013.01); B29K 2307/04 (2013.01); B29K 2995/0005 (2013.01); B32B 2250/24 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/106 (2013.01); B32B 2264/105 (2013.01); B32B 2264/108 (2013.01); B32B 2307/202 (2013.01); B32B 2307/558 (2013.01); B32B 2307/702 (2013.01); B32B 2307/748 (2013.01); B32B 2605/00 (2013.01); C08J 2363/00 (2013.01); C08J 2377/00 (2013.01); C08J 2381/06 (2013.01); Y10T 156/10 (2015.01); Y10T 428/31515 (2015.04);
Abstract

The invention provides a prepreg comprising: a primary prepreg composed of reinforcing fibers and a resin composition (I) impregnating the interior of a reinforcing fiber layer formed from these fibers; and a surface layer composed of a resin composition (II) formed on one or both sides of the primary prepreg; wherein the resin composition (I) is an epoxy resin composition [B] containing at least an epoxy resin and a thermoplastic resin, and the resin composition (II) is an epoxy resin composition [A] containing at least an epoxy resin and conductive particles.

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