FIELD: chemistry.
SUBSTANCE: additive contains high-molecular weight polyisobutylene. The additive is a solution of high-molecular weight polyisobutylene in a mixture of organic solvents, with addition of industrial oil and 1,2-epoxypropane, with the following ratio of components, wt %: high-molecular weight polyisobutylene 2.0-7.0; nefras 15-30; white spirit 45-62.5; industrial oil 15-20; 1,2-epoxypropane 0.25-0.75. The present invention also relates to a method of reducing pipe friction losses.
EFFECT: high effectiveness of the additive for reducing pipe friction losses in a pumped liquid.
2 cl, 12 ex
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