Патент USA US2411604код для вставки
Patented Nov. 26, 1946 2,411,604 UNITED STATES PATENT OFICE 2,411,604 STABILIZED CYCLONITE Milton Heins Wahl, Woodbury, N. J ., assignor to E. I. du Pont de N emours & Company, Wilming ton, Del., a corporation of Delaware No Drawing. Application August 18, 1942, Serial No. 455,215 (01. 52—5) 1 Claim. 1 2 The present invention relates to detonating ex While the foregoing bases are all applicable under the invention, I ?nd that diphenylamine and the diethyl dialkyl ureas are particularly plosive compositions adapted to military and/or commercial use. advantageous. Certain existing explosive compositions of this type exhibit a marked tendency to undergo auto The compositions of my inventions may be pre . catalytic decomposition. pared in any convenient manner. I ?nd the An object of the present invention is a new invention particularly advantageous in the case and improved explosive composition of this type. of cast mixtures, wherein the composition is ex Another object is such a composition character posed to elevated temperatures during prepara ized by freedom from autocatalytic decomposi 10 tion. The invention is applicable also however tion. Other objects will be apparent from the in the case of simple mechanical mixtures, detailed description of my invention in the fol pressed or unpressed, or mixtures obtained by co lowing. precipitation from solvents. I have found that the foregoing objects are ac The amount of the base used is preferably complished by employing a. composition compris 15 within the range of 0.1% to 4.0%, based on the ing cyclotrimethylenetrinitramine and an or weight of the explosive composition. A smaller ganic base having a dissociation constant lower amount than 0.1% is insuf?cient to effect the than 1>< 10—5. freedom from autocatalytic decomposition if the The foregoing explosive may be employed as resulting composition, while the use of more than well in mixtures or blends with certain fusible 20 4.0% would lower the strength of the resulting nitrated organic compounds such as pentaerythri explosive compound, and tend to desensitize the tol tetranitrate tetryl, ethylene dinitramine, eth ylene dinitramine tetranitrate, nitromannite and trinitrotoluene. composition. In manufacturing cast explosives according to the invention, the base preferably will be added The following will serve as illustrations of or 25 when the explosive composition is in a molten con ganic bases that come within the scope of the dition. invention. I ?nd it preferable to use an amount Those engaged in the manufacture and/or use of the organic base within the range of 0.1% to of military detonating explosives, and commercial 4.0% of the explosive content: Dissocia Base ‘on Constant Urea 1. 5X10‘14 Alpha-naphthylamine _______________________________ .. Beta-napbthylamine - 2. XlO-lo Pyridine Phenylenerliamine 9. 9X10-11 3. 3X10” . 3. 3X10-10 o-Toluidine __________________________________ ._ 3. 3X10-1° Diphenylamine __________ -_ Sym-diphenyl-dimethyl ure . Sym-diphenyl-diethyl urea- _ . 1. l. 1. _ XlO'" Xl0-14 X10‘M Thioutea_ _ _ _ 1. 1X10'" Acetanilii __ 4. 1X10‘“ Dicyandiamid _______________________________________ __ 1. - 30 explosives as well, will appreciate that the art has been advanced in the development of the compositions of the present invention which are characterized by freedom from autocatalytic de composition to an extent not hitherto possible. 35 I intendto be bound only by the ‘following pat ent claim. I claim: An explosive composition comprising cyclotri methylenetrinitramine and between 0.1% and 40 4.0% of an organic base having a dissociation con stant lower than 1 x 10—5_ Xlo-H MILTON H. WAHL.