Explosive and thermic compositions or charges – Metal or alloy or metalloid – each in particulate form – with... – Plural oxygen yielding compounds
Patent
1997-06-23
2000-08-15
Acquah, Samuel A.
Explosive and thermic compositions or charges
Metal or alloy or metalloid, each in particulate form, with...
Plural oxygen yielding compounds
528 48, 528 55, 528 71, 528 76, 528361, 528403, 528417, 528420, 528421, 528422, 525403, 525410, 149 194, 149 196, 149 199, 149 23, 149 38, C06B 3312, C08G 6391, C08G 7300
Patent
active
061030295
ABSTRACT:
Polyethers containing pendant azide groups are cured without a catalyst by yclo-addition with diacetylenes to form triazole cross-linked, energetic binders having improved mechanical properties and stability. The polyethers typically have three hydroxy-terminated chains each of about 5000 to about 50,000 daltons. Ideally, only one azide group per chain reacts by cyclo-addition since the diacetylene is added in a proportion of about one molecule to each two polyether chains. Repeating units of glycidal azide, azidomethylmethyloxetane, bis-azidomethyloxetane
itratomethylmethyloxetane, and bis-azidomethyloxetane/azidomethylmethyloxetane are believed effective as polyethers when used with the diethynlbenzenes 1,4-bis(ethynl)benzene, 1,4-bis(ethynlcarbonyl)benzene, and 1,3-bis(cyanoethynl)benzene. The polyethers may be further cross-liked at the hydroxyl terminations by urethane bonds.
REFERENCES:
patent: 3132976 (1964-05-01), Klager et al.
patent: 3245849 (1966-04-01), Klager et al.
patent: 3350245 (1967-10-01), Dickinson
patent: 3645917 (1972-02-01), Vandenberg
Acquah Samuel A.
Baugher Jr. Earl H.
Bokar Gregory M.
The United States of America as represented by the Secretary of
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