| abstract |
The present invention relates to alkylphenol-aldehyde resins containing oligo- or polymmers having a repeat structural unit of the formula n nwhere n R 1 is a branched alkyl or alkenyl radical which has from 10 to 40 carbon atoms and bears at least one carboxyl, carboxylate and/or ester group, R 2 is hydrogen or R 1 R 3 is hydrogen or an alkoxy group of the formulan n—(A-O) m —H,n A is a C 2 - to C 4 -alkylene group, m is from 1 to 100, R 4 is hydrogen, a C 1 - to C 11 -alkyl radicals or a carboxyl group, R 5 is C 1 -C 200 -alkyl or -alkenyl, O—R 6 or O—C(O)—R 6 , R 6 is C 1 -C 200 -alkyl or-alkenyl, n is from 1 to 100 and k is 1 or 2. |