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. 11, 1996
Filed:
Nov. 07, 1994
Applicant:
Inventors:
Assignee:
Societe Nationale des Poudres et Explosifs, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C06B / ;
U.S. Cl.
CPC ...
149 196 ; 149 191 ; 149 195 ; 149 20 ; 149 45 ;
Abstract
The present invention relates to the field of gas-generating pyrotechnic compositions intended for motor vehicle safety. The compositions according to the invention include: an oxygen-containing thermoplastic binder and especially a block aliphatic copolymer of formula: ##STR1## in which: PA is a polyamide block, PE is a polyether block, n is a number between 2 and 10, an energetic plasticizer which is a polyglycidyl azide, an oxidizing charge in which at least 85% of its weight consists of ammonium nitrate. The compositions according to the invention burn without solid residues and can be employed in gas generators without a filter chamber.