METHOD FOR PRODUCTION OF ALKENYLSUCCINEIMIDES Russian patent published in 2007 - IPC C08F8/32 C08F8/46 C08G73/10 C10M149/22 C10L1/22 

FIELD: organic chemistry, polymers.

SUBSTANCE: claimed method includes interaction of maleic anhydride with C₁₀-C₃₀-poly-alpha-olefin or C10-C30-polyisobutylene containing with molecular mass of 700-1100 in presence of initiator, previously at 70-90°C for 0.5-1.0 h and further at 165-175°C for 3-4 h in poly-alpha-olefin (polyisobutylene)/maleic anhydride ratio of 1:1-1.1 followed by condensation of obtained alkenylsuccinic anhydride in oil (such as industrial oils) with polypropylene polyamines at 40-70°C for 0.5-1.5 h then at 140-145°C for 4-4.5 hours. As initiator tert-butyl peroxide or methylethylketone peroxide in amount of 1-1.5 % based on the weight of starting poly-alpha-olefin (or polyisobutylene) and maleic anhydride is used. As polypropylene polyamines dipropylenetriamine, tripropylenetetramine, tetrapropylenepentamine, as well as mixture of polypropylene polyamines containing (mass %): moisture 0.5-0.8; 1,2-diaminepropane 0.9-1.8; dipropylenetriamine 20-47; tripropylenetetramine 26-51; tetrapropylenepentamine and hentapropylenehexamine 26-28 are used.

EFFECT: simplified process (decreased energy consumption and synthetic process duration), product of increased quality.

4 cl, 8 ex, 1 tbl