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:
Apr. 15, 2008
Filed:
Aug. 18, 2005
Himansu M. Gajiwala, Layton, UT (US);
David G. Guillot, Tremonton, UT (US);
Himansu M. Gajiwala, Layton, UT (US);
David G. Guillot, Tremonton, UT (US);
Alliant Techsystems Inc., Edina, MN (US);
Abstract
An insulation composition that comprises at least one nitrile butadiene rubber ('NBR') having an acrylonitrile content that ranges from approximately 26% by weight to approximately 35% by weight and polybenzoxazole ('PBO') fibers. The NBR may be a copolymer of acrylonitrile and butadiene and may be present in the insulation composition in a range of from approximately 45% by weight to approximately 56% by weight of a total weight of the insulation composition. The PBO fibers may be present in a range of from approximately 3% by weight to approximately 10% by weight of a total weight of the insulation composition. A rocket motor including the insulation composition and a method of insulating a rocket motor are also disclosed.