Samuel A Pt Goldhagen

US Patent:

40509680, Sep 27, 1977

Filed:

Apr 29, 1970

Appl. No.:

5/029623

Inventors:

Samuel Goldhagen - Sacramento CA
Harry Heller - Silver Spring MD
Julius Rothenstein - Citrus Heights CA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C06B 4510

US Classification:

149 194

Abstract:

A readily castable explosive composition comprising (1) an explosive such RDX, HMX or perchlorate salts, (2) a readily curable elastomeric polymer such as a copolymer of 2,2-dinitropropyl acrylate, methyl acrylate and at least one member of the group 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate and 2-hydroxyethyl acrylate, (3) a diluent or plasticizer such as bis(2,2-dinitropropyl)formal and/or bis(2,2-dinitropropyl)acetal and (4) a cross-linking agent such as 2,4-toluene diisocyanate and polymethylene polyphenylisocyanate and optionally containing one or more of the following: fuels, stabilizers, antioxidants, polymerization catalysts and explosive desensitizers.

US Patent:

41636813, Aug 7, 1979

Filed:

Apr 15, 1970

Appl. No.:

5/028991

Inventors:

Julius Rothenstein - Citrus Heights CA
Samuel Goldhagen - Sacramento CA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C06B 4522

US Classification:

149 11

Abstract:

This patent describes a novel desensitized explosive wherein a normally sitive solid explosive material is coated with an effective desensitizing amount of a phlegmatizing agent which contains functional groups reactive with one or more ingredients conventionally used in forming a thermally stable, crosslinked solid composite explosive. The present invention also includes thermally stable, crosslinked solid composite explosive in which said desensitized explosives are an integral part. Still further this invention includes the method of coating the as-received explosive material with said phlegmatizing agent, preferably in a drying vessel at elevated temperatures.