FIELD: manufacturing technology.
SUBSTANCE: invention relates to diene-vinyl aromatic rubbers producing method. Method of diene-vinyl aromatic rubbers producing is implemented by emulsion copolymerization of conjugated dienes and vinyl aromatic monomers in presence of polymerization initiator and chain transfer agent. Method is characterized by that return vinyl aromatic monomer in amount of 30–60 % of total weight of all participating in reaction vinyl aromatic monomer is subjected to preliminary mixing with chain transfer agent microemulsion.
EFFECT: method enables to achieve high conversion of monomers with production of latex with higher resistance to mechanical action, also providing production of vulcanized rubbers with good properties for use in tire industry.
19 cl, 3 tbl, 11 ex
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Authors
Dates
2017-04-11—Published
2015-12-29—Filed