METHOD OF SHOTTING MULTI-COMPONENT THERMO ELASTOPLASTS-BASED ARMORED COMPOSITION (TEPC) Russian patent published in 2010 - IPC B29C39/10 C08J3/12 

FIELD: process engineering.

SUBSTANCE: proposed method can be used in armoring rocket solid propellant rocket charges, as well as in civil engineering, to be coated with TEPC-based polymer enclosures. Proposed method comprises shotting multi-component armoring composition based on thermo elastoplasts, dry mixing of components and subsequent plastification, homogenisation and extrusion of armoring mass in screw extruder. Note here that dry mixing of components lasts for at least 15 min. After mixing, 1-2%-solution of thermo elastoplasts in butyl acetate in introduced, in some 3 to 5 steps, into said mix of components. Content of said solution makes 10 to 15 percent by weight wit respect to armoring composition. Then armoring composition is discharged onto pans and uniformly distributed thereon to have layer thickness not over 10 mcm. Now, this composition is dried at 15 - 35°C for 3 to 12 hours and loaded into screw extruder to be extruded there in and cut into granules.

EFFECT: method of shotting TEPC-based multi-component armoring composition with higher homogeneity of granules and better thermo-physical properties, higher quality of armot and reduced power consumption.

1 dwg, 1 tbl, 1 ex