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:
Oct. 20, 1998
Filed:
Sep. 18, 1997
Stephen John Backlund, Fair Oaks, CA (US);
Robert Earl Olsen, Placerville, CA (US);
Aerojet-General Corporation, Rancho Cordova, CA (US);
Abstract
Resins and carbon-carbon composites are formed from di(alken-1-yl) borinic acids and borinates, either as monomers or as nonpolymerizing additives in a monomer mixture, with the effect of sharply increasing the oxidative stability of the cured product. The compounds have the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are H, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.5 -C.sub.7 cycloalkenyl, aryl, (C.sub.1 -C.sub.6 alkyl)-substituted aryl, (C.sub.2 -C.sub.6 alkenyl)-substituted aryl, or (C.sub.2 -C.sub.6 alkynyl)-substituted aryl, at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 being other than H.