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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 10472474 B1

PDFFull Text
Date of Patent:
Nov. 12, 2019

Filed:

Dec. 12, 2017

Semipreg with thermoplastic toughened novolac-based epoxy resin matrix

Applicant:

Hexcel Corporation, Dublin, CA (US);

Inventors:

Kathlyn Lizette Baron, Dublin, CA (US);

Gordon Emmerson, Dublin, CA (US);

Yen-Seine Wang, San Ramon, CA (US);

Assignee:

HEXCEL CORPORATION, Dublin, CA (US);

Attorneys:

W. Mark Bielawski

David J. Oldenkamp

Primary Examiner:

Ana L Woodward

Int. Cl.
CPC ...
C08J 5/04 (2006.01); C08L 63/04 (2006.01); C08L 79/08 (2006.01); C08G 59/32 (2006.01); F02K 9/34 (2006.01); B29C 70/50 (2006.01); B29B 15/12 (2006.01); C08J 5/24 (2006.01); C08G 59/50 (2006.01); C08G 69/14 (2006.01); C08G 69/26 (2006.01); C08G 73/10 (2006.01); C08L 77/02 (2006.01); C08L 77/06 (2006.01); B64C 1/00 (2006.01); B64G 1/00 (2006.01); B29C 70/40 (2006.01);
U.S. Cl.
CPC ...
C08J 5/042 (2013.01); B29B 15/122 (2013.01); B29C 70/50 (2013.01); C08G 59/32 (2013.01); C08G 59/5033 (2013.01); C08G 69/14 (2013.01); C08G 69/26 (2013.01); C08G 73/1035 (2013.01); C08G 73/1067 (2013.01); C08J 5/24 (2013.01); C08L 63/04 (2013.01); C08L 77/02 (2013.01); C08L 77/06 (2013.01); C08L 79/08 (2013.01); F02K 9/34 (2013.01); B29C 70/40 (2013.01); B64C 2001/0072 (2013.01); B64G 1/002 (2013.01); C08J 2300/22 (2013.01); C08J 2363/02 (2013.01); C08J 2363/04 (2013.01); C08J 2477/06 (2013.01); C08J 2479/08 (2013.01); C08J 2481/06 (2013.01); C08L 2205/03 (2013.01); F05D 2300/603 (2013.01);
Abstract

A semipreg that can be cured/molded to form aerospace composite parts including rocket booster casings. The semipreg includes a fibrous layer and a resin layer located on one side of the fibrous layer. The resin layer includes an epoxy component that is a combination of a hydrocarbon epoxy novolac resin and a trifunctional epoxy resin and optionally a tetrafunctional epoxy resin. The resin matrix includes polyethersulfone as a toughening agent and a thermoplastic particle component.

Find Patent Forward Citations

Baron, Kathlyn. (2019). Semipreg with thermoplastic toughened novolac-based epoxy resin matrix (U.S. Patent No. 10472474). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10472474

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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