METHOD OF SYNTHESIS OF SYNTHETIC FILM-FORMING AGENT Russian patent published in 1997 - IPC

FIELD: chemical technology. SUBSTANCE: method involves polymerization of monomers mixture taken from the group involving piperylene, isoprene, isoamylenes, vinylaromatic monomers, coupled diene cyclodimers at 50-120 C in solvent in the presence of titanium, tin or antimony chloride as catalyst taken at amount 0.3-0.5 wt. -% as measured for comonomers and promoter. Promoter is a mixture of additions taken from the group involving ketone, amine, water. Mass ratio of catalyst : promoter = 200-6000. Method involves degassing polymerizate, deactivation of catalyst. Comonomeric mixture has isoprene and piperylene at mass ratio = 1.6-3.6. EFFECT: improved method of synthesis. 1 tbl