High energy explosives

USH1459H · kind H · statutory invention registration

Assignee

• United States of America as represented by the Secretary of the Air Force · US

Inventors

• William Lawrence · Four Corners, US
• Robert C. Gill · Salisbury, US

Key dates

• Grant date: Jul 4, 1995

Classification

• Technology area (CPC —): General

Abstract

A high energy explosive composite which comprisesPA0 (1) from about 2 to about 30 weight percent of an energetic polymer matrix f a urethane which is the reaction product ofPA1 (a) a hydroxy-terminated prepolymer of the formula ##STR1## where R is --CH.sub.2 CF(NO.sub.2).sub.2 or --CH.sub.2 C(NO.sub.2).sub.2 CH.sub.3 ; A is --CH.sub.2 CH.sub.2, --CH.sub.2 OCH.sub.2 --, or --CH.sub.2 OCH.sub.2 OCH.sub.2 --, and n>1, andPA1 (b) a polyisocyanate which is used in an amount sufficient to supply from about 0.8:1 to about 1.5:1 isocyanate functional groups for each hydroxy functional group;PA0 (2) from about 8 to about 20 weight percent of an energetic plasticizer; andPA0 (3) from about 50 to about 90 weight percent of an explosive;PA0 wherein the energetic plasticizer and explosives are uniformly dispersed throughout the energetic polymer matrix.