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.

Date of Patent:
Jul. 30, 2024

Filed:

Nov. 07, 2019
Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Kenji Nagao, Takaishi, JP;

Fuchih Li, Takaishi, JP;

Sadamu Nagahama, Takaishi, JP;

Assignee:

DIC Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D06M 15/564 (2006.01); B29B 15/08 (2006.01); C08J 5/04 (2006.01); C08J 5/06 (2006.01); D06M 15/55 (2006.01);
U.S. Cl.
CPC ...
D06M 15/564 (2013.01); B29B 15/08 (2013.01); C08J 5/042 (2013.01); C08J 5/06 (2013.01); D06M 15/55 (2013.01); D06M 2200/40 (2013.01);
Abstract

Provided is a fiber sizing agent including a vinyl ester resin (A), an epoxy compound (B), and an aqueous medium. The vinyl ester resin (A) has an alkoxy polyoxyalkylene structure and a urethane linkage. The fiber sizing agent exhibits excellent binding ability for various fibers, such as glass fibers and carbon fibers. Molded articles produced from a molding material including the fiber sizing agent have various excellent physical properties, and examples of the physical properties include flexural strength, compressive strength, and interlaminar shear strength. Accordingly, the molded articles can be used, for example, in automotive parts, aircraft parts, windmill parts, industrial parts, and the like.


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