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:
May. 17, 1977
Filed:
Sep. 11, 1975
Russell Reed, Jr, Ridgecrest, CA (US);
Richard P Cornia, Logan, UT (US);
Thiokol Corporation, Newtown, PA (US);
Abstract
A solid rocket propellant composition having a relatively high low pressure deflagration limit (Pdl) and thereby capable of being extinguished with only a relatively small drop in combustion chamber pressure. The composition comprises a major amount of finely divided ammonium perchlorate and a minor amount of fluoroalkyl acrylate or methacrylate polymer as a binder, the weight ratio being from about 4.5:1 to about 6:1.The fluidity of the composition prior to curing can be improved by incorporating a small amount of an acrylate or methacrylate having an oxygen-containing functional group, e.g., hydroxyalkyl, epoxyalkyl and glycerol acrylates and methacrylates.