Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for manufacture of microcrystalline nitrocellulose

a technology of microcrystalline nitrocellulose and manufacturing method, which is applied in the direction of nitrocellulose explosive composition, explosives, weapons, etc., can solve the problems of difficult consolidation of nitrocellulose in this manner, low bulk density of cellulose, and light, fluffy material that is not easily compressed

Inactive Publication Date: 2006-08-17
NICKEL RUSSELL R +1
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011] Briefly stated, an embodiment of the present invention provides a chemically unaltered nitrocellulose product for use in an energetic high

Problems solved by technology

The most problematic physical property of cellulose is it's low bulk density.
The fibrous nature of cellulose results in a light, fluffy material which is not easily compressed.
Nitrocellulose is very difficult to consolidate in this manner due to a low bulk density of approximately 0.2 gm / cc.
However, the addition of solvents to nitrocellulose alters the basic chemistry of the nitrocellulose, and most of the commonly used plasticizing agents are unsuitable for use in pyrotechnics.
While such alterations to increase the plasticity of the nitrocellulose may be suitable for the manufacture of smokeless gunpowder, they are not desirable for use in the pyrotechnics industry.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for manufacture of microcrystalline nitrocellulose
  • Method for manufacture of microcrystalline nitrocellulose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The following detailed description illustrates the invention by way of example and not by way of limitation. The description clearly enables one skilled in the art to make and use the invention, describes several embodiments, adaptations, variations, alternatives, and uses of the invention, including what is presently believed to be the best mode of carrying out the invention.

[0019] Microcrystalline cellulose is basically cellulose, and is derived from high-quality wood pulp, and in particular, from special grades of alpha cellulose. In many ways, cellulose is an ideal excipient. A naturally occurring polymer, cellulose is comprised of glucose units connected by a 1-4 beta glycosidic bond. These linear cellulose chains are bundled together as microfibril spiraled together in the walls of a plant cell. Each microfibril exhibits a high degree of three-dimensional internal bonding resulting in a crystalline structure that is insoluble in water and resistant to reagents. There a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A microcrystalline nitrocellulose composition for use in an energetic high-nitrogen fuel, which exhibits the plastic characteristics of colloided nitrocellulose, suitable for forming, molding, or compacting, and a method of manufacturing the same.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] Not Applicable. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] Not Applicable. BACKGROUND OF THE INVENTION [0003] The present application relates generally to nitrocellulose, and in particular, to a method for manufacturing microcrystalline nitrocellulose to provide an energetic, high-nitrogen fuel which is compressible and has a high binding capability. [0004] Nitrocellulose, also known as cellulose nitrate, pyroxylin, colloxylin, xyloidin, celloidin, and parlodion, is a fast burning, easily ignitable, high-nitrogen energetic material which has been used in such applications as explosives and as a gun and rocket propellant. Nitrocellulose burns cleanly with non-toxic combustion byproducts, such as nitrogen, carbon dioxide, and water vapor. In the fireworks industry, nitrocellulose is typically utilized as an energetic binder in a lacquer form, added to pyrotechnic compositions. [0005] Nitrocellulose is manufactured from cellul...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C06B31/52
CPCC06B21/0016C06B25/18
Inventor NICKEL, RUSSELL R.WALKER, RONALD R.
Owner NICKEL RUSSELL R
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com