METHOD OF OBTAINING LOW-MOLECULAR RUBBERS Russian patent published in 2009 - IPC C08F36/04 C08C2/06 

FIELD: chemistry.

SUBSTANCE: invention relates to field of obtaining low-molecular rubbers and can be applied in oil-chemical industry. Low molecular rubbers are obtained by polymerisation of coupled dienes or by their copolymerisation between each other and/or with vinyl monomers in mass or in medium of hydrocarbon solvent at 60-120°C and 7-10 kgf/cm² in presence of radical initiators and regulators with following distillation of non- polymerised monomers or their mixtures with hydrocarbons from polymerisate with water steam, being subjected to degassing at temperature of polymerisation for pressure 0.1-4.0 kgf/cm² before processing with water steam. At degassing it is possible to have content of initiator in polymerisate 0.1-1.5 wt %.

EFFECT: process intensification.

2 cl, 3 tbl, 3 ex