THERMOPLASTIC ELASTOMERIC COMPOSITION Russian patent published in 2013 - IPC C08L23/06 C08L23/34 C08K3/22 

FIELD: chemistry.

SUBSTANCE: present invention relates to a thermoplastic elastomeric composition based on polyethylene and chlorosulphonated polyethylene, which is meant for pressure moulding and extruding spacers, bushings, gaskets and other industrial rubber articles operating in conditions where they are in contact with aggressive media. The composition is obtained by mixing polyethylene at rotor speed of 50 min^-1 until complete melting thereof, after which chlorosulphonated polyethylene is added to the molten polyethylene at rotor speed of 65 min^-1. The melt flow index of the composition, which is determined at a load of 15 kg and temperature of 150°C, is equal to 0.5-4.99 g/10 min. The composition contains 20-60 wt % polyethylene and 40-80 wt % chlorosulphonated polyethylene.

EFFECT: obtained composition has high resistance to aggressive media and improved physical and mechanical properties.

2 cl, 1 tbl, 6 ex