Title:
Gelatinized explosive
United States Patent 3208890


Abstract:
A substantially oxygen-balanced explosive composition contains by weight 3-70% propylene glycol dinitrate and 10-95% of an oxidizing salt. The propylene glycol dinitrate may also contain up to 50% nitroglycerine, up to 2% nitroglycol, and, as a gelatinizing agent, nitrocellulose or a hydrogen bond forming agent; such an agent may be an aliphatic alcohol or glycol, glycerol, an aliphatic ketone or camphor, an aliphatic acetate, formate, propionate, or nitrate ester, or an ether, many examples of such compounds being given. Examples of oxidizing salts are the nitrates, perchlorates, and chlorates of ammonium, alkali metals, and alkaline earth metals. Other optional ingredients of the explosive compositions are T.N.T., P.E.T.N., hexogen, sawdust, flour, metal powder, and kieselguhr. The composition may be in the form of a powder, or in plastic or semi-plastic condition. In examples, the following ingredients are specified: 1,2-propylene glycol dinitrate, 1,3-propylene glycol dinitrate, nitroglycerine, nitrocellulose, ammonium nitrate, sodium nitrate, ammonium perchlorate, dinitrotoluene, monoacetin, T.N.T., sulphur,aluminium, wood flour, kieselguhr, paraffin wax and chalk. The explosives have an improved physiological acceptance and a lower sensitivity to impact as compared with corresponding compositions containing ethylene glycol dinitrate.



Inventors:
Torsten, Edlund Carl
Allan, Wetterholm Gustav
Application Number:
US26152163A
Publication Date:
09/28/1965
Filing Date:
02/27/1963
Assignee:
NITROGLYCERIN AG
Primary Class:
Other Classes:
149/45, 149/76, 149/104
International Classes:
C06B25/10; C06B25/12; C06B31/56
View Patent Images:
US Patent References:
2768073Explosive compositions1956-10-23
2481795Explosives suitable for safety blasting explosives1949-09-13
1879064Gelatinous explosive composition1932-09-27
1640712Acceleration of gelatinization of cellulose nitrate1927-08-30
1637726N/A1927-08-02
1485003N/A1924-02-26
1307033N/A1919-06-17
1213369N/A1917-01-23