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:
Jun. 15, 2010
Filed:
Dec. 14, 2005
Paul Touchet, Woodbridge, VA (US);
Alan R. Teets, Middletown, DE (US);
David P. Flanagan, Alexandria, VA (US);
Charles G. Pergantis, Wilmington, DE (US);
Paul Touchet, Woodbridge, VA (US);
Alan R. Teets, Middletown, DE (US);
David P. Flanagan, Alexandria, VA (US);
Charles G. Pergantis, Wilmington, DE (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
An elastomer composition includes a polymer system made up of a majority of HNBR polymer and an optional polymer additive such as carboxylated nitrile, ethylene-propylene-diene rubber, isoprene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, butyl rubber, isoprene rubber, natural rubber and hydrogenated carboxylated butadiene acrylonitrile terpolymer, and combinations thereof. The polymer system totals 100 parts by weight. A cure system for the elastomer composition includes 1.5 to 30 parts by weight of zinc, magnesium or calcium oxide, 15 to 50 parts by weight of an α,β-ethylenically unsaturated carboxylic acid and an organoperoxide. Under vulcanization conditions, the elastomer composition cures through the in situ formation of a metal carboxylate. A degradation inhibitor for an elastomer composition that includes an amine and an imidazole along with an optional polymerized quinoline is noted to be particularly effective.