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Title:
MIXTURE OF BENZOXAZINE RESIN AND CYANATE ESTER RESIN FOR PYROLISIS DENSIFICATION OF CARBON-CARBON COMPOSITES
Document Type and Number:
WIPO Patent Application WO/2017/062324
Kind Code:
A3
Abstract:
A method of forming carbon-carbon composites includes molding carbon fibers with a compound comprising a blend of benzoxazine resin and cyanate ester resin; and pyrolyzing the compound to form the carbon-carbon composite. The moulding can be RTM. A carbon-carbon composite includes carbon fibers impregnated with a compound comprising a blend of benzoxazine resin and cyanate ester resin. The benzoxazine resin has preferably a char yield of greater than 65%.

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Inventors:
FOWLER GRAY E (US)
Application Number:
PCT/US2016/055249
Publication Date:
August 10, 2017
Filing Date:
October 04, 2016
Export Citation:
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Assignee:
RAYTHEON CO (US)
International Classes:
C04B35/626; C04B35/83
Domestic Patent References:
WO2011161171A12011-12-29
Foreign References:
CN102643516A2012-08-22
US5152939A1992-10-06
CN103145437A2013-06-12
DE102011084626A12012-04-19
US5266695A1993-11-30
US20140212658A12014-07-31
EP2336221A12011-06-22
US20150141583A12015-05-21
JP2003003065A2003-01-08
Attorney, Agent or Firm:
LAWRENCE, M., Brad (US)
Download PDF:
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