FIELD: chemistry.
SUBSTANCE: invention concerns a method for obtaining rubbers, particularly an uninterrupted obtaining of butyl rubber, and the butyl rubber. Butyl rubber with Mooney viscosity of at least 25 units and gel content of at least 15 mass % is obtained at the transformation degree within 50% to 95%. The butyl rubber includes repeating links derived from at least one isoolefine monomere, over 4.1 mol % of repeating links derived from at least one multiolefine monomere including isoprene, and optionally other co-polimersable monomers. The butyl rubber is obtained by polymerisation of respective monomers in the presence of initiating agent, which is a system containing AlCl3 and at least one proton source, e.g. water, and/or cation-generating substance capable of polymerisation initiating. The method is implemented in the presence of at least one multiolefine binding agent.
EFFECT: higher degree of butyl rubber transformation.
13 cl, 4 tbl, 4 ex
