Urea and urethane group containing anti-settling rheology control additive

Abstract

The present invention relates to a urea and urethane group containing product comprising one or more species of formula (I) R1—O—(C═O)—NH—R2—NH—(C═O)—NH—R3—NH—[—(C═O)—NH—R4—NH—(C═O)—NH—R3—NH—]n—(C═O)—NH—R2—NH—(C═O)—O—R1 (I), wherein R1 independently represents a non-aromatic hydrocarbyl group having 14 to 30 carbon atoms; R2 independently represents alkyl-substituted aromatic hydrocarbyl groups having 7 to 12 carbon atoms; R3 independently represents hydrocarbyl groups having 2 to 36 carbon atoms, which can be interrupted by 1 to 17 ether oxygen atoms in case of aliphatic hydrocarbyl groups; R4 independently represents hydrocarbyl groups having 2 to 36 carbon atoms; n is an integer from 0 to 200; and wherein on average from 40 mol-% to 100 mol-% of all R3 and R4 groups contained in the one or more species of formula (I) are acyclic aliphatic hydrocarbyl groups which, in case of R3, can be interrupted by 1 to 17 ether oxygen atoms. The invention further relates to a method of manufacturing such product, liquid compositions containing such products and the use of the liquid compositions as rheology control additive, preferably as anti-settling agent. Furthermore, the present invention relates to a process for rheology adjustment, comprising the step of adding such liquid composition to a variety of compositions and formulations.

Dependencies are inferred from the claim text.