PROCESS OF PRODUCING CHLORINE-CONTAINING FILM FORMER Russian patent published in 2007 - IPC C09D109/00 C08F236/00 

FIELD: polymer production.

SUBSTANCE: invention relates to technology of production of synthetic chlorine-containing film formers via cationic copolymerization of cationophilic monomers selected from monochloroprenes and vinylaromatic hydrocarbons. Copolymerization of organochlorine compounds with unsaturated hydrocarbons is carried out for 1-3 h at 25-65°C in presence of catalytic complex AlCl₃O(C₆H₅)₂ and involves (i) 60-80% of organochlorine compounds, which are by-products from allyl chloride production containing 80-98% monochloroprene fraction and (ii) 20-40% of unsaturated hydrocarbons. Above-indicated catalytic complex is promoted with 10% toluene solution of propylene oxide or acetone and contains 0.5-1.0% AlCl₃ based on the weight of copolymerizates. Unreacted organochlorine compounds are distilled off and recycled to copolymerization process. Catalyst comprised in thus obtained copolymer is treated with propylene oxide at AlCl₃/propylene oxide ratio 1:2.

EFFECT: achieved production of low-inflammability film former and enabled utilization allyl chloride production by-products.

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