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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 10822280 B1

PDFFull Text
Date of Patent:
Nov. 03, 2020

Filed:

Aug. 29, 2018

Method of making a fiber preform for ceramic matrix composite (cmc) fabrication utilizing a fugitive binder

Applicant:

Rolls-royce High Temperature Composites Inc., Cypress, CA (US);

Inventors:

Stephen Harris, Long Beach, CA (US);

David Smolenski, Huntington Beach, CA (US);

Assignee:

ROLLS-ROYCE HIGH TEMPERATURE COMPOSITES INC., Cypress, CA (US);

Attorney:

Brinks Gilson & Lione

Primary Examiner:

Alex B Efta

Int. Cl.
CPC ...
C04B 35/80 (2006.01); C04B 35/628 (2006.01); C04B 35/634 (2006.01); C04B 35/638 (2006.01); C04B 35/657 (2006.01); C04B 37/00 (2006.01); B29C 70/00 (2006.01); B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29B 11/00 (2006.01); B32B 37/15 (2006.01); B32B 38/00 (2006.01); C08J 5/12 (2006.01); B32B 5/02 (2006.01); B32B 9/00 (2006.01); C08J 5/24 (2006.01); B32B 37/20 (2006.01);
U.S. Cl.
CPC ...
C04B 35/806 (2013.01); B29B 11/00 (2013.01); B29C 48/00 (2019.02); B29C 70/00 (2013.01); B32B 5/024 (2013.01); B32B 9/005 (2013.01); B32B 37/153 (2013.01); B32B 38/0036 (2013.01); C04B 35/62863 (2013.01); C04B 35/62871 (2013.01); C04B 35/62894 (2013.01); C04B 35/638 (2013.01); C04B 35/63416 (2013.01); C04B 35/63444 (2013.01); C04B 35/63464 (2013.01); C04B 35/657 (2013.01); C04B 37/008 (2013.01); C08J 5/121 (2013.01); C08J 5/24 (2013.01); B32B 37/203 (2013.01); B32B 2260/021 (2013.01); B32B 2260/04 (2013.01); B32B 2262/105 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/524 (2013.01); C04B 2235/5244 (2013.01); C04B 2235/604 (2013.01); C04B 2235/616 (2013.01); C04B 2237/38 (2013.01); C08J 2329/04 (2013.01); C08J 2339/06 (2013.01); C08J 2369/00 (2013.01);
Abstract

A method of making a fiber preform for ceramic matrix composite (CMC) fabrication comprises laminating an arrangement of fibers between polymer sheets comprising an organic polymer, which may function as a fugitive binder during fabrication, to form a flexible prepreg sheet. A plurality of the flexible prepreg sheets are laid up in a predetermined geometry to form a stack, and the stack is heated to soften the organic polymer and bond together the flexible prepreg sheets into a bonded prepreg structure. Upon cooling of the bonded prepreg structure, a rigid preform is formed. The rigid preform is heated at a sufficient temperature to pyrolyze the organic polymer. Thus, a porous preform that may undergo further processing into a CMC is formed.

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