Abstract

The present application is directed at a thermoplastic filament for use in three-dimensional printing processes for the manufacture of energetic objects which can be used for propulsion of projectiles in weapons and for solid rocket engines. The thermoplastic filament comprises at least one energetic plasticizer and nitrocellulose, wherein the ratio of the concentration of the at least one energetic plasticizer to the concentration of the nitrocellulose is between 0.5:1 to 2:1 by weight. The present application is also directed at the use of such a thermoplastic filament in a three-dimensional printing process, preferably in a material extrusion type three- dimensional printing process, to the manufacture of energetic objects which can be used for propulsion of projectiles in weapons and for solid rocket engines.

IPC Classes  ?

• D01F 1/10 - Other agents for modifying properties
• D01F 2/26 - Monocomponent artificial filaments or the like of cellulose or cellulose derivativesManufacture thereof from cellulose derivatives from nitrocellulose
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• C06B 25/18 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition

Abstract

The present application relates to a propellant charge system for firing artillery shells comprising at least two partial charges. The partial charges each have one type of powder, which comprises nitrocellulose, at least one crystalline energy carrier and at least a first inert plasticiser. At least one partial charge has a first type of powder and the at least one further partial charge has a second type of powder. The second type of powder has between 2 and 10 percent by weight of a second inert plasticiser in the region of zones near the surface, to a maximum depth of penetration of 400 micrometres, while the first type of powder has no second inert plasticiser in zones near the surface.

IPC Classes  ?

• C06B 23/00 - Compositions characterised by non-explosive or non-thermic constituents
• C06B 25/00 - Compositions containing a nitrated organic compound
• C06B 25/18 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
• C06B 45/00 - Compositions or products which are defined by structure or arrangement of component or product
• C06B 45/12 - Compositions or products which are defined by structure or arrangement of component or product having contiguous layers or zones
• F42B 5/38 - Separately-loaded propellant charges, e.g. cartridge bags

Abstract

The present application relates to a propellant charge system for firing artillery shells comprising at least two partial charges. The partial charges each have one type of powder, which comprises nitrocellulose, at least one crystalline energy carrier and at least a first inert plasticiser. At least one partial charge has a first type of powder and the at least one further partial charge has a second type of powder. The second type of powder has between 2 and 10 percent by weight of a second inert plasticiser in the region of zones near the surface, to a maximum depth of penetration of 400 micrometres, while the first type of powder has no second inert plasticiser in zones near the surface.

IPC Classes  ?

• F42B 5/38 - Separately-loaded propellant charges, e.g. cartridge bags
• C06B 25/18 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
• C06B 45/00 - Compositions or products which are defined by structure or arrangement of component or product

Abstract

Powder as propulsion powder or ignition powder for accelerating projectiles for mortar systems is based on nitrocellulose and comprises a crystalline, nitramine-based energetic material at 1-30 wt% and an inorganic muzzle flash suppressor at 0.1-10 wt%. The powder is in the form of grains, and the grains on their surface optionally have an inert plasticizing additive at not more than 1 wt%. The crystalline, nitramine-based energetic material is preferably at least one compound from the group encompassing hexogen (RDX) and octogen (HMX). The inorganic muzzle flash suppressor preferably comprises at least one compound from the group encompassing potassium nitrate and potassium sulfate.

IPC Classes  ?

• C06B 23/04 - Compositions characterised by non-explosive or non-thermic constituents for cooling the explosion gases
• C06B 25/18 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
• C06B 25/34 - Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
• C06B 45/12 - Compositions or products which are defined by structure or arrangement of component or product having contiguous layers or zones

Abstract

Powder as propellant powder or ignition powder for accelerating projectiles for mortar systems, which is based on nitrocellulose and contains a crystalline energy carrier based on nitramine in an amount of 1-30 percent by weight and an inorganic muzzle flash suppressor in an amount of 0.1-10 percent by weight. The powder is in the form of particles and the particles optionally have an inert plasticising additive in an amount of not more than 1 percent by weight on their surface. The crystalline energy carrier based on nitramine is preferably at least one compound from the group consisting of hexogen (RDX) and octogen (HMX). The inorganic muzzle flash suppressor is preferably at least one compound from the group consisting of potassium nitrate and potassium sulphate.

IPC Classes  ?

• C06B 23/04 - Compositions characterised by non-explosive or non-thermic constituents for cooling the explosion gases
• C06B 25/18 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
• C06B 25/34 - Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
• C06B 45/12 - Compositions or products which are defined by structure or arrangement of component or product having contiguous layers or zones

Goods & Services

Chemical products used in industry, particularly for the manufacture of propellant powders for ammunition; all the aforesaid goods of Swiss origin. Ammunition and projectiles, particularly cartridge fillers, cartridges, cartridge cases, ammunition reloading dies; propellant powder for ammunition; all the aforesaid goods of Swiss origin.

Goods & Services

Ammunition and projectiles, namely, cartridge fillers, gun cartridges, cartridge cases, ammunition reloading dies; propellant powder for ammunition; all the aforesaid goods of Swiss origin Chemical products used in industry, namely, chemical products for use in the manufacture of propellant powders for ammunition; all the aforesaid goods of Swiss origin

Abstract

2, where R is a residual. The nitramine compound is present in a concentration in the range from 1 to 35% by weight, in particular in the range from 5 to 25% by weight. The nitramine compound is preferably RDX. The inert plasticizing additive is a water-insoluble polyoxo compound, if necessary in combination with a substance containing carboxyl groups. In layers near the surface an increased concentration can be present. The inert plasticizing additive is present in a concentration of 1 to 5% by weight.

IPC Classes  ?

• D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
• D03D 43/00 - Looms with change-boxes
• C06B 31/00 - Compositions containing an inorganic nitrogen-oxygen salt
• C06B 25/00 - Compositions containing a nitrated organic compound

Abstract

The propulsion system for the acceleration of projectiles is based on a multi-perforated grain propellant and is composed from nitrocellulose, a crystalline energy carrier of a nitramine type and an inert plasticizing additive. The number of perforations is 2 to 6, preferably 4. The propellant grains can have round or polygonic profiles, depending on the number of perforations. The preferred grain geometry is cubic with a rectangular grain profile. The nitramine compound contains a structural element of the general chemical structure formula R-N-N02, where R is a residual group. The nitramine compound is present in a concentration in the range from 0 to 35% by mass, in particular in the range from 5 to 25% by mass. The nitramine compound is preferably RDX. The inert plasticizing additive is a water-insoluble polyoxo compound, if necessary in combination with a substance containing carboxyl groups. In layers near the surface an increased concentration can be present. The inert plasticizing additive is present in a concentration of 0 to 10% by mass, preferred 0 to 5% by mass.

IPC Classes  ?

• F42B 5/16 - Cartridges, i.e. cases with propellant charge and missile characterised by composition or physical dimensions or form of propellant charge or powder
• C06B 25/34 - Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
• C06B 25/18 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
• C06B 45/00 - Compositions or products which are defined by structure or arrangement of component or product
• C06B 45/10 - Compositions or products which are defined by structure or arrangement of component or product comprising solid particles dispersed in solid solution or matrix the solid solution or matrix containing an organic component the organic component containing a resin
• C06B 45/12 - Compositions or products which are defined by structure or arrangement of component or product having contiguous layers or zones

Abstract

The propulsion system for the acceleration of projectiles is based on nitrocellulose and contains a crystalline energy carrier on a nitramine base and an inert plasticising additive. The nitramine compound contains a structural element of the general chemical structure formula R-N-NO2, where R is a residual. The nitramine compound is present in a concentration in the range from 1 to 35 % by weight, in particular in the range from 5 to 25 % by weight. The nitramine compound is preferably RDX. The inert plasticising additive is a water-insoluble polyoxo compound, if necessary in combination with a substance containing carboxyl groups. In layers near the surface an increased concentration can be present. The inert plasticising additive is present in a concentration of 1 to 5 % by weight.

IPC Classes  ?

• C06B 23/00 - Compositions characterised by non-explosive or non-thermic constituents
• C06B 25/18 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
• C06B 25/20 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with a non-explosive or a non-thermic component
• C06B 25/22 - Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with a nitrated aromatic compound
• C08J 3/18 - Plasticising macromolecular compounds
• C08K 5/07 - AldehydesKetones
• C08K 5/3492 - Triazines
• C08L 1/02 - CelluloseModified cellulose
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 71/00 - Compositions of polyethers obtained by reactions forming an ether link in the main chainCompositions of derivatives of such polymers
• F42B 15/00 - Self-propelled projectiles or missiles, e.g. rocketsGuided missiles

Goods & Services

Chemical products, particularly for the production of propellant powders for ammunition. Ammunition and projectiles, propellant powders for ammunition.

Goods & Services

[ Chemicals for use in the manufacture of blasting powder for ammunition ] [ Ammunition and projectiles, ] blasting powder for ammunition

Goods & Services

[ Firearms and ] pyrotechnical products, namely, and ammunition [weapons projectiles ]

Goods & Services

Ammunition and projectiles.

Goods & Services

[ Chemicals for use in the production of propellant powder for ammunition and in the production of propellants ] Ammunition and projectiles

Goods & Services

(1) Chemicals for use in the manufacture of propellant powder for ammunition; ammunition and projectiles (weapons).

Goods & Services

Chemicals used in particular for the production of propellant powder for ammunition, propellants. Ammunition and projectiles.