QVARTOPREN TERMOPLASTIC ELASTOMER COMPOSITION AND METHOD OF ITS OBTAINMENT Russian patent published in 2008 - IPC C08L23/16 C08L23/12 C08J3/22 C08K13/02 

FIELD: chemistry.

SUBSTANCE: invention concerns chemical, rubber, plastic and other industries processing and applying rubber and plastic and can be applied in insulation of flexible cables instead rubber ones, in manufacturing of building production, such as window and door gaskets, roofing materials, in manufacturing of consumer goods. Thermoplastic elastomer composition based on non-saturated triple copolymer ethylene-propylene rubber and polypropylene includes alkylphenolformaldehyde resin, zinc oxide, halogen-containing component, filler, plastification agent and special additive improving thechnological properties of the composition during processing, the additive including potassium or sodium salts of fatty acids with 10 to 20 carbon atoms. Method of obtaining dynamic thermoplastic elastomer composition involves two stages. At the first stage master batch is prepared in rubber mixer, non-saturated triple copolymer ethylene-propylene rubber, zinc oxide, filler, plastification agent and special additive including potassium or sodium salts of fatty acids with 10 to 20 carbon atoms are mixed. At the second stage the master batch is stirred in polypropylene melt in twin-screw extruder at 140-200°C with simultaneous curing of triple copolymer ethylene-propylene rubber in the presence of alkylphenolformaldehyde resin and halogen-containing component.

EFFECT: obtaining QVARTOPREN thermoplastic elastomer composition with improved technological properties.

2 cl, 1 tbl