METHOD OF PRODUCING POLYMER PETROLEUM RESINS Russian patent published in 2009 - IPC C08F240/00 C08F6/02 

FIELD: chemistry.

SUBSTANCE: method is described for producing polymer petroleum resins, involving polymerisation of unsaturated compounds of the fraction of liquid products of pyrolysis of straight run benzene with boiling range from 130 to 190°C in the presence of catalyst systems: titanium tetrachloride and an organoaluminium compound in molar ratios: TiCl₄ : Al(C₂H₅)₂Cl = 1 : (0.1 - 3.0); TiCl₄ : Al(C₂H₅)₃ = 1 : (0.1 - 3.0); TiCl₄ : Al(iso-C₄H₉)₃ = 1 : (0.1 - 3.0). The method is distinguished by that, the catalyst is successively deactivated with 1,2-epoxy-compounds of general formula where R=CH₃, C₂H₅, C₃H₇, C₆H₅, CH₂-O-R', where R'=C_nH_2n+1 (n=1-3); C₆H₅-R", where R"=H, CH₃, C₂H₅, epoxy-diane resins of general formula: , where n=0-3, with content of epoxy groups from 10.0 to 22.5%, taken in molar ratio: epoxy-diane resin : 1,2-epoxy-compound, equal to 1.0-1.25 : 1.0-1.5, where total amount of epoxy equivalents is equal to the total number of chlorine atoms and alkyl substitutes with aluminium and titanium atoms in the selected catalyst system. The deactivation products remain the composition of polymer petroleum resins.

EFFECT: simpler technology, improved environmental friendliness of the process.

1 cl, 3 tbl, 24 ex