Solvents that are suitable for use with polyurethane-polyurea based rheology modifying agents of the type which, in the past, have generally been formulated as solids or viscous liquids. The present solvents enable the rheology modifying agents to be prepared and formulated in a liquid or solution form more suited to prepare coating formulations that include polyurethane-polyurea based rheology modifying agents. The present solvents are N-alkyl substituted caprolactams, including N-methyl caprolactam, N-ethyl caprolactam, N-butyl caprolactam, and mixtures thereof, which are aprotic, non-toxic, have good solvency for polar groups such as those found in polyurethanes and polyureas, are thermally stable, and have high boiling points and low vapor pressure.

The invention relates to a composition comprising a mixture of compounds according to formula (I) wherein IC1 and IC2 independently of one another and of each occurrence represent a hydrocarbyl group, AM independently of each occurrence represents N a hydrocarbyl group, m is the average number of repeating units from 0 to 20, RP1 and RP2 independently of one another and of each occurrence represent an organic group selected from RP3, RP4, RP5, wherein RP3 represents a hydrocarbyl group, RP4 represents an t7 organic group according to formula (II) RP41-(AO).sub.n- wherein RP41 represents a hydrocarbyl group having 1 to 24 carbon atoms, AO represents an alkylene oxide repeating unit and n is the average number of repeating units from 6 to 30, RP5 represents an organic group N according to formula (III) RP51-(AO).sub.p- wherein RP51 represents a hydrocarbyl group having 1 to 24 carbon atoms, AO represents an CN alkylene oxide repeating unit and p is the average number of repeating units from 1 to 5, wherein the mixture comprises compounds of formula (I) wherein (A) RP1 is RP3 and RP2 is RP4, (B) RP1 is RP4 and RP2 is RP5, (C) RP1 is RP3 and RP2 is RP5.

##STR00001##

The invention relates to a composition comprising a mixture of compounds according to formula (I) wherein IC1 and IC2 independently of one another and of each occurrence represent a hydrocarbyl group, AM independently of each occurrence represents N a hydrocarbyl group, m is the average number of repeating units from 0 to 20, RP1 and RP2 independently of one another and of each occurrence represent an organic group selected from RP3, RP4, RP5, wherein RP3 represents a hydrocarbyl group, RP4 represents an t7 organic group according to formula (II) RP41-(AO).sub.n- wherein RP41 represents a hydrocarbyl group having 1 to 24 carbon atoms, AO represents an alkylene oxide repeating unit and n is the average number of repeating units from 6 to 30, RP5 represents an organic group N according to formula (III) RP51-(AO).sub.p- wherein RP51 represents a hydrocarbyl group having 1 to 24 carbon atoms, AO represents an CN alkylene oxide repeating unit and p is the average number of repeating units from 1 to 5, wherein the mixture comprises compounds of formula (I) wherein (A) RP1 is RP3 and RP2 is RP4, (B) RP1 is RP4 and RP2 is RP5, (C) RP1 is RP3 and RP2 is RP5.

##STR00001##

Suggested is a urea urethane with improved rheological properties, obtainable or obtained according to a process encompassing or consisting of the following steps: (a) providing a monohydroxyl compound; (b) providing a diisocyanate compound; (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer; (d) reacting said pre-polymer with a diamine compound,
Wherein said pre-polymer and said diamine are reacted in the presence of a surfactant.

Suggested is a urea urethane with improved rheological properties, obtainable or obtained according to a process encompassing or consisting of the following steps: (a) providing a monohydroxyl compound; (b) providing a diisocyanate compound; (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer; (d) reacting said pre-polymer with a diamine compound,
Wherein said pre-polymer and said diamine are reacted in the presence of a surfactant.

A coating composition for coating of components of a flow machine, especially a turbomachine such as a gas turbine with compressor, or of a compressor, which are exposed to the fluid stream of the flow machine or of the compressor, wherein the coating composition includes anticorrosion pigments, wherein the coating composition includes hard material particles, and wherein the coating composition is an RT-curing, UV-curing and/or thermally curing coating composition. A component of a flow machine or of a compressor has the coating composition. A method of maintaining a flow machine or a compressor uses the coating composition.

A coating composition for coating of components of a flow machine, especially a turbomachine such as a gas turbine with compressor, or of a compressor, which are exposed to the fluid stream of the flow machine or of the compressor, wherein the coating composition includes anticorrosion pigments, wherein the coating composition includes hard material particles, and wherein the coating composition is an RT-curing, UV-curing and/or thermally curing coating composition. A component of a flow machine or of a compressor has the coating composition. A method of maintaining a flow machine or a compressor uses the coating composition.

A casting resin composition comprising or consisting of: (a) a monomer capable of forming a casting resin upon polymerisation and (b) at least one thixotropic agent
wherein said at least one thixotropic agent is a urea urethane.

A casting resin composition comprising or consisting of: (a) a monomer capable of forming a casting resin upon polymerisation and (b) at least one thixotropic agent
wherein said at least one thixotropic agent is a urea urethane.

The present invention relates to novel polymer compositions, to a process for their manufacturing, to the use of said polymer compositions for modifying the viscosity of aqueous compositions, and to water-borne coating compositions containing the novel polymer compositions as thickeners. The polymer compositions comprise a polymer material which is obtainable by reacting: a) a polymer P1 having at least one functional group of the formula (I), where k is an integer from 0 to 4; n is 0 or 1 p is an integer from 1 to 10, the number average of p being from 1.5 to 10; Q is a divalent moiety selected from the group consisting of O and NH; P is a p-valent hydrophilic neutral polymer radical; and R.sup.1 is as defined in the claims; with b) a succinic anhydride of the formula (II) where R is C.sub.4-C.sub.24-alkyl or C.sub.4-C.sub.24-alkenyl. ##STR00001##