Abrégé

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.

Classes IPC  ?

• D01F 1/10 - Autres agents modifiant les propriétés de ces filaments
• D01F 2/26 - Filaments, ou similaires, artificiels, à un seul composant, formés de cellulose ou de dérivés de la celluloseLeur fabrication à partir de dérivés de la cellulose à partir de nitrocellulose
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• C06B 25/18 - Compositions contenant un composé organique nitré le composé étant de la nitrocellulose représentant 10% ou plus en poids de la composition totale

Abrégé

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.

Classes IPC  ?

• F42B 5/38 - Charges propulsives sans projectile, p. ex. gargousses
• C06B 25/18 - Compositions contenant un composé organique nitré le composé étant de la nitrocellulose représentant 10% ou plus en poids de la composition totale
• C06B 45/00 - Compositions ou produits définis par une structure ou des dispositions particulières des composants ou du produit

Abrégé

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.

Classes IPC  ?

• C06B 23/04 - Compositions caractérisées par des constituants non explosifs ou non thermiques pour refroidir les gaz d'explosion
• C06B 25/18 - Compositions contenant un composé organique nitré le composé étant de la nitrocellulose représentant 10% ou plus en poids de la composition totale
• C06B 25/34 - Compositions contenant un composé organique nitré le composé étant une amine nitrée acyclique, cyclanique ou hétérocyclique
• C06B 45/12 - Compositions ou produits définis par une structure ou des dispositions particulières des composants ou du produit ayant des couches ou des zones contiguës

Produits et 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.

Produits et 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

Abrégé

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.

Classes IPC  ?

• D03D 23/00 - Méthodes générales de tissage qui ne sont pas spéciales à la production d'un tissu particulier ou à l'emploi d'un métier particulierArmures non prévues par un seul autre groupe
• D03D 43/00 - Métiers à boîtes à plusieurs trames
• C06B 31/00 - Compositions contenant un sel inorganique d'un composé d'azote et d'oxygène
• C06B 25/00 - Compositions contenant un composé organique nitré

Abrégé

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.

Classes IPC  ?

• F42B 5/16 - Cartouches, c.-à-d. projectile et douille avec charge propulsive formant un tout caractérisées par la composition ou les dimensions géométriques ou la forme de la charge propulsive ou de la poudre
• C06B 25/34 - Compositions contenant un composé organique nitré le composé étant une amine nitrée acyclique, cyclanique ou hétérocyclique
• C06B 25/18 - Compositions contenant un composé organique nitré le composé étant de la nitrocellulose représentant 10% ou plus en poids de la composition totale
• C06B 45/00 - Compositions ou produits définis par une structure ou des dispositions particulières des composants ou du produit
• C06B 45/10 - Compositions ou produits définis par une structure ou des dispositions particulières des composants ou du produit comportant des particules solides dispersées dans une solution solide ou une matrice le composé étant une solution solide ou matrice contenant un composant organique le composant organique contenant une résine
• C06B 45/12 - Compositions ou produits définis par une structure ou des dispositions particulières des composants ou du produit ayant des couches ou des zones contiguës

Produits et services

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

Produits et services

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

Produits et services

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

Produits et services

Ammunition and projectiles.

Produits et services

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

Produits et services

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

Produits et services

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