Method for producing plastically bonded propulsion powders and explosives

Patent 4608210 Issued on August 26, 1986. Estimated Expiration Date:

October 10, 2004. 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.

Abstract Claims Description Full Text

Patent References

Process for extrusion of pyrotechnical compositions
Patent #: 4120920
Issued on: 10/17/1978
Inventor: Cougoul , et al.

Production of plastic-bonded explosive substances
Patent #: 4405534
Issued on: 09/20/1983
Inventor: Deisenroth

Method and means for making an explosive in the form of an emulsion Patent #: 4491489
Issued on: 01/01/1985
Inventor: Ellis , et al.

Inventors

Application

No. 06/659247 filed on 10/10/1984

US Classes:

264/3.2, Rolling to form sheet or rod264/3.5, By liquid comminuting264/3.6Immersed in liquid

Examiners

Primary: Nelson, Peter A.

Attorney, Agent or Firm

McCormick, Paulding & Huber

International Classes

C06B 21/00 (20060101)
B30B 11/22 (20060101)
B30B 11/24 (20060101)

Foreign Application Priority Data

1984-04-03 DE

Abstract

A method for manufacturing plastically bonded propulsive powders and explves by means of an extruder which comprises a housing with at least one entry opening, under certain conditions a solvent supplementing opening, two co- or counterrotating screw shafts and a forming head. The method makes possible continuous production with minimal binder components of 4-6 percent. Firstly, the plastic binder in a fixed, soluble or suspended form is added by means of an entry opening for a period of time until the screws float in the plastic binder without opposing friction and without friction with the walls. The components of the propulsive powder, or correspondingly the explosive material in crystalline form, are added in steadily increasing proportions with a simultaneous reduction of the portion of the plastic binder and finally, the mixture ratio is held constant.