FROST-RESISTANT CAOUTCHOUC COMPOSITION Russian patent published in 2016 - IPC C08L7/00 C08L9/00 C08L11/00 F16F1/36 F16F9/04 

FIELD: chemistry.

SUBSTANCE: frost-resistant caoutchouc composition contains butadiene caoutchouc, chloroprene caoutchouc and natural caoutchouc or natural caoutchouc can be partially substituted with special caoutchouc, selected from the group, which consists of styrene-butadiene caoutchouc and nitrile caoutchouc. The content of butadiene caoutchouc constitutes from 10 to 35 wt. p., the content of chloroprene caoutchouc constitutes from 50 to 75 wt. p. and the content of natural caoutchouc or the total content of natural caoutchouc and special caoutchouc constitutes from 10 to 35 wt. p. relative to 100 wt. p. of the total content of the caoutchoucs. For the case, when the caoutchouc composition contains special caoutchouc, the content of the special caoutchouc constitutes from 10 to 60 wt % relative to the total content of natural caoutchouc and special caoutchouc.

EFFECT: excellent ozone resistance and excellent frost-resistance.

4 cl, 5 tbl