abstract |
FIELD: chemical industry, in particular, concentrate for lubricating oils. SUBSTANCE: copolymer of general formula , where R I , R II , R 1 ÷R 6 is H; C 1 -C 3 is alkyl; A is -CH 2 -CH 2 - or -CH(CH 3 )CH 2 -; R a is linear or branched C 8 -C 30 alkyl; n is 0 or 1, at least, two radicals from the group consisting of R 1 , R 4 , R 6 , R 3 are C 1 -C 3 -alkyls; X is 80-98 wt.-%; y is 2-20 wt.-%. EFFECT: improved properties of composition. 4 cl |