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:
Nov. 06, 2018
Filed:
Aug. 04, 2016
Applicants:
Hexcel Corporation, Dublin, CA (US);
Hexcel Composites Limited, Cambridge, GB;
Inventors:
Assignees:
HEXCEL CORPORATION, Dublin, CA (US);
HEXCEL COMPOSITES LIMITED, Duxford, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 5/24 (2006.01); C08L 77/02 (2006.01); C08G 59/50 (2006.01); C08L 63/00 (2006.01); C08L 81/06 (2006.01); C08G 59/32 (2006.01); C08K 5/18 (2006.01);
U.S. Cl.
CPC ...
C08J 5/24 (2013.01); C08G 59/32 (2013.01); C08G 59/5033 (2013.01); C08K 5/18 (2013.01); C08L 63/00 (2013.01); C08L 77/02 (2013.01); C08L 81/06 (2013.01); C08J 2363/00 (2013.01); C08J 2477/00 (2013.01); C08J 2481/06 (2013.01);
Abstract
Uncured epoxy resin for use in making prepreg for aerospace applications. The resin includes an epoxy resin component comprising difunctional epoxy resin, trifunctional epoxy resin and/or tetrafunctional epoxy resin and a sufficient amount of [3-(4-aminobenzoyl) oxyphenyl]4-aminobenzoate (3-ABOAB), as a curing agent, such that the uncured resin can be stored at room temperature of at least 6 weeks and wherein the uncured resin can be fully cured in no more than 2 hours at a temperature of between 175° C. and 185° C.