Process and apparatus for producing plastic-bound propellant powders and explosives

Patent 4767577 Issued on August 30, 1988. Estimated Expiration Date:

October 1, 2006. 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

3874207

Nitrocellulose explosive process involving a ketone
Patent #: 3969167
Issued on: 07/13/1976
Inventor: Johannes

Process for the production of propellant charge powders, especially nitroguanidine powders
Patent #: 4051207
Issued on: 09/27/1977
Inventor: Brachert , et al.

Method for making extruded, solventless, composite-modified double base propellant
Patent #: 4102953
Issued on: 07/25/1978
Inventor: Johnson , et al.

Process and apparatus for producing single- or multi-base propellants
Patent #: 4525313
Issued on: 06/25/1985
Inventor: Muller

Extrusion, conveyance, and cutting system
Patent #: 4585600
Issued on: 04/29/1986
Inventor: Rollyson , et al.

Method for producing plastically bonded propulsion powders and explosives Patent #: 4608210
Issued on: 08/26/1986
Inventor: Muller , et al.

Inventors

Application

No. 06/914072 filed on 10/01/1986

US Classes:

264/3.3, Extrusion to form sheet or rod149/100, With nonexplosive or nonthermic component149/109.6, PROCESSES OF MAKING149/19.92, Process149/2, STRUCTURE OR ARRANGEMENT OF COMPONENT OR PRODUCT149/92, Nitrated acyclic, alicyclic or heterocyclic amine149/96, Nitrocellulose, 10 percent or over264/148, Extruding followed by cutting to length264/159, Tubular work264/3.2, Rolling to form sheet or rod425/113, Extrusion shaping means425/131.1, Extrusion shaping means425/174, MEANS APPLYING ELECTRICAL OR WAVE ENERGY DIRECTLY TO WORK425/174.4, Radiated energy83/365With photo-electric work-sensing means

Examiners

Primary: Lechert, Stephen J. Jr.
Assistant: Locker, Howard J.

Attorney, Agent or Firm

Antonelli, Terry & Wands

International Classes

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

Foreign Application Priority Data

1985-10-03 DE

Abstract

A process and apparatus for producing plastic-bound propellant powders and explosives in crystalline form, with the apparatus including an extruder comprising a casing with a feed opening, optionally a solvent supply opening and one or two extruder shafts with kneading and conveying segments. For processing the plastic binders, which polymerize photochemically or under X-rays, a casing section transparent for the rays is provided, with polymerization within the extruder being initiated by UV/VIS or X-radiation sources arranged around it and the radiation intensity and/or the wavelength of the radiation are controlled as a function of the pressure difference over a given path in a compression zone of the extruder, in such a manner that the propellant or explosive strand or strands leave the extruder in a dimensionally stable and cuttable manner.