U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Energetic plasticizer, and explosive and propellant composition containing same

Patent 6425966 Issued on July 30, 2002. Estimated Expiration Date: Icon_subject September 14, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2185297

2340268

2374484

2522959

3000933

3223725

3396187

3865658

3901974

Preparation of esters from organic bromo alkyl tellurium compounds
Patent #: 4258208
Issued on: 03/24/1981
Inventor: Kao ,   et al.

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Inventors

Assignee

Application

No. 661557 filed on 09/14/2000

US Classes:

149/19.1, Organic material contains polysaccharide resin or synthetic resin149/19.8, Nitrocellulose149/88, CONTAINING NITRATED ORGANIC COMPOUND560/264Substituted

Examiners

Primary: Miller, Edward A.

Attorney, Agent or Firm

International Class

C06B 045/10

Abstract

2,2-dinitro-1,3-propanediol-diformate is a novel low sensitivity, energetic plasticizer that is useful in explosive and propellant compositions. 2,2-dinitro-1,3-propanediol-diformate can be made by reacting 2,2-dinitro-1,3-propane diol with acetic formic anhydride in the presence of pyridine and at least one solvent.

Other References

  • Leach et al., Plasticisers in Energetic Materials Formulations--A UK Overview, p. 2-2 to 2-14 (1988)
  • Kissinger et al., 28 Journal of Organic Chemistry, "gem-Dinitro Esters. IV. Pyridine-Catalyzed . . . Alcohols", p.2491-2494 (1963)
  • Ungnade et al., 31 Journal of Organic Chemistry, "Esters and Ethers . . . 1-alkanols", Feb. 1966, p. 369-371 (1966)
  • Garver, et al. "Catalyzed . . . Salts", J. Org. Chem. 1985, vol. 50, p. 16-99-1702 (1985)
  • Krimen, "Acetic Formic Anhydride", Organic Synthesis, Collective vol. 4 (1988
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