TW201805373A - Novel non-ionic polyamide rheology modifier for aqueous coating - Google Patents

Abstract

A non-ionic rheology modifier which comprises polyamides that are prepared from an acid-terminated polymer with capping by a polymer containing a non-ionic hydrophilic segment, and dispersing in water thereafter, is made for use in aqueous paint, and that provides excellent pigment suspension and rheological properties to the aqueous based coating.

Description

Novel nonionic polyamine rheology modifier for waterborne coatings

A nonionic rheology modifier composition for aqueous coatings that prevents pigments and solids from settling in the coating.

In order to prevent the pigment or other finely divided solid particles used in the coating from settling during storage, a pigment suspension or an anti-settling agent is added to the composition. The anti-settling agent provides excellent pigment suspension and rheological properties to the aqueous coating composition. Application of pigment suspensions or anti-settling agents can overcome the settling problems that occur in the coating. In the absence of such anti-settling agents, pigments and other undissolved materials can be difficult to redisperse in the coating system after settling. Thus, the additive anti-settling agent can be used in the art to control the rheological properties and pigment suspension properties of aqueous fluid systems containing finely divided solid particles and to make them easy to use.

Aluminum pigments or pearlescent pigments (such as mica) or anti-corrosive pigments (such as those used in metal coatings and anti-corrosive coatings) can easily cause settling in the coating due to the large particle size and high specific gravity of the pigment. In the solvent-based coating, a guanamine wax type or a polyethylene oxide wax type anti-settling agent is used to prevent sedimentation, but the addition Some of the additives are not suitable for aqueous coatings.

A material that can be used as an anti-settling or pigment suspending agent for an organic (or non-aqueous) coating composition is an emulsifiable polyethylene wax dispersed in an organic solvent. It is disclosed in U.S. Patent Nos. 3,123,488 and 3,184,233. U.S. Patent No. 3,985,568 describes an emulsifiable paste comprising an emulsifiable polyethylene wax finely divided particles in a sulfated/sulfonated castor oil which can be used to modify the rheology of a non-aqueous fluid system containing finely divided solid particles and Suspension properties.

U.S. Patent No. 3,937,678 discloses the use of a mixture of a guanamine wax obtained by reacting a hydrogenated castor oil fatty acid or a mixture of a hydrogenated castor oil fatty acid and an amine to a non-aqueous fluid system to improve a non-aqueous fluid system containing finely divided solid particles. Rheological properties and suspension properties.

Thickeners such as flame-made vermiculite or clay (such as microcrystalline kaolin), lithium bentonite or magnesium aluminum sepiolite have been used in aqueous coating systems to correct pigment settling problems. However, such materials have the disadvantage of reducing the gloss associated with the cured coating system and are difficult to use as post-additive corrections upon completion of the coating preparation. These materials are difficult to disperse during the manufacture of the coating and require high shear mixing equipment to achieve proper dispersion.

U.S. Patent No. 4,381,376 discloses a method of forming an ionic copolymer salt from a low molecular weight copolymer acid formed from ethylene having at least one carboxylic acid group and an α,β-ethylenically unsaturated carboxylic acid and having a cation having a valence of 1 to 3. The materials may be dispersing aids to disperse finely divided inert materials, such as pigments, in various non-aqueous polymer compositions including polypropylene and polyethylene.

U.S. Patent No. 5,374,687 discloses the use of neutralizing agents to neutralize emulsified copolymers obtained from alpha-olefins and alpha, beta-ethylenically unsaturated carboxylic acids. Substance. This composition acts as an aqueous anti-settling agent. The additive is liquid and therefore has the advantage of being treated, but it is insufficient as an anti-settling agent for an aluminum pigment or a mica pigment (such as mica) used in an aqueous metal paint.

Anti-settling agents for aqueous coatings are disclosed in U.S. Patent No. 5,994,494. The composition is obtained by the following method: polyamine, which is a dimer dicarboxylic acid having an excess of 2 to 12 carbon atoms and an excess of dimer dicarboxylic acid relative to the diamine a polymerized unsaturated fatty acid (generally known as a dimer acid) or a mixture of a dimer acid with another dicarboxylic acid having 3 to 21 carbon atoms and/or a monocarboxylic acid having 2 to 22 carbon atoms. obtain. The polyamine is neutralized with a neutralizing base, and the neutralized polyamine is then dispersed in a medium mainly composed of water.

In recent years, due to environmental and ease of use considerations, waterborne coatings have been actively tested. Therefore, it is natural to seek anti-settling agents for aqueous systems. Although various materials have heretofore been proposed as aqueous anti-settling agents, they have problems such as the prevention of pigments having a large particle size and a large specific gravity (for example, aluminum pigments and pearlescent pigments (such as mica used in aqueous metal coatings). The effect of sedimentation of the anti-corrosion pigment used in the water-based anti-corrosion coating is insufficient. In addition, it reduces gloss and water repellency.

The anti-settling agent previously disclosed having a polyamine composition includes an aromatic solvent to improve the dehydration of the residual aromatic solvent remaining in the coating even if a solvent removal method is applied (U.S. Patent No. 5,994,494). In addition, many early anti-settling agents for aqueous coatings require the use of a neutralizing agent. Therefore, the coating properties become sensitive to pH. In some instances, the neutralizing agent also causes volatility problems.

The present invention overcomes the problems and disadvantages of the prior art by providing excellent pigment suspension and rheological properties to aqueous coating compositions without the presence of an amine neutralizing agent and consequent pH sensitivity.

In one embodiment, the present invention provides a nonionic rheology modifier composition for aqueous coatings which is derived from a process having the following steps: polyacids terminated with multiple acids and having nonionic The monoepoxy-terminated polymer of the hydrophilic segment is reacted to form a polymer; and the rheology-modifying agent dispersion is obtained by dispersing the polymer in water in a co-solvent.

In another embodiment, the present invention provides a nonionic rheology modifier composition for aqueous coatings which is derived from a process comprising the steps of: polyacid-terminated polyamines and alkyl groups The glycidyl ether is reacted to form an intermediate; the intermediate is reacted with a monoisocyanate-terminated polymer having a nonionic hydrophilic segment to form a polymer; and the polymer is dispersed in water by a co-solvent to obtain The rheology modifier dispersion.

。式(1)中之X為經多重酸封端之聚醯胺，n=2~6，且式(1)中之Y為包括下列的端基之一或多者：

其中式(1)中之R1為具有1至22個碳原子之脂族、環脂族或芳族端基。在一實施態樣中，式(1)中之R2為選自由下列所組成之群組的二異氰酸酯化合物之殘基部分：甲苯二異氰酸酯、二異氰酸異佛酮、六亞甲基二異氰酸酯、二苯甲烷-4,4'-二異氰酸酯、環己基甲烷-4,4'-二異氰酸酯、1,4-雙(2-異氰酸-2-基)苯、三甲基六亞甲基二異氰酸酯，且其中之X'為聚(C_2-4環氧烷)。 In still another embodiment, the present invention provides a nonionic polyamine rheology modifier as in formula (1)

. X in the formula (1) is a polyacid-terminated polyamine, n=2 to 6, and Y in the formula (1) is one or more of the following terminal groups:

Wherein R1 in the formula (1) is an aliphatic, cycloaliphatic or aromatic terminal group having 1 to 22 carbon atoms. In one embodiment, R2 in the formula (1) is a residue portion of a diisocyanate compound selected from the group consisting of toluene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate , diphenylmethane-4,4'-diisocyanate, cyclohexylmethane-4,4'-diisocyanate, 1,4-bis(2-isocyanato-2-yl)benzene, trimethylhexamethylene Diisocyanate, and wherein X' is poly(C _2-4 alkylene oxide).

The object of the present invention is to provide an anti-settling agent or pigment suspending agent from an aromatic-free and non-volatile process which is more environmentally friendly than existing materials used in aqueous coating systems for anti-settling and pigment suspension. The anti-settling agent is easy to handle and is easy to incorporate into the aqueous composition. Further, when a material for anti-settling is produced in the present invention by using a raw material having a designed composition instead of a mixture, the ratio of the method and the composition is controlled, and physical properties and coating properties can be controlled. Embodiments of rheological additives for achieving this purpose are described herein.

One embodiment of the present invention provides a nonionic polyamine rheology modifier which can be terminated from a monoepoxy group comprising a polyacid terminated polyamine and a nonionic hydrophilic segment. A method of polymer reaction is obtained. Subsequently, the polyamine was dispersed in water as a cosolvent to obtain a rheology modifier having a solids content of 25%.

In some embodiments, the multiplexed acid terminated polyamine is prepared by reacting at least one dicarboxylic acid having 3 to 54 carbon atoms and/or a tricarboxylic acid with at least one diamine. . In such embodiments, the dicarboxylic acid is selected from the group consisting of malonic acid, succinic acid, glutamic acid, adipic acid, pimelic acid, suberic acid, azelaic acid, Azelaic acid, dodecanedioic acid, isophthalic acid and dimer fatty acids. In another embodiment, the tricarboxylic acid is selected from the group consisting of citric acid, propane-1,2,3-tricarboxylic acid, 1,2,4-butanetricarboxylic acid, benzene- 1,3,5-tricarboxylic acid, 1,2,4-benzenetricarboxylic acid, biphenyl-3,4',5-tricarboxylic acid and trimeric fatty acid. In each of the foregoing embodiments, the diamine is selected from the group consisting of ethylene diamine, 1,4-diaminobutane, hexamethylenediamine, 1,10-decethylenediamine. 1,11-undecethylenediamine, 1,12-dodeethylenediamine, xylenediamine and 4,4'-diaminodiphenylmethane.

In some embodiments, the monoepoxy-terminated polymer having a nonionic hydrophilic segment is reacted with a monohydroxy nonionic hydrophilic compound or a monoalkyl acid with a bicyclic ring. It is prepared by reacting an oxypropyl-terminated nonionic hydrophilic compound. In such embodiments, the monohydroxy nonionic hydrophilic compound has a molecular weight of from 500 to 3000 g/mole and comprises an aliphatic, cycloaliphatic or aromatic end group having from 1 to 22 carbon atoms. Poly(C _2-4 alkylene oxide).

In some embodiments in which the monoalkyl acid is reacted with a diepoxypropyl terminated nonionic hydrophilic compound, the monoalkyl acid is selected from the group consisting of acetic acid, butyric acid, caproic acid , octanoic acid, citric acid, lauric acid, myristic acid, palmitic acid, stearic acid, diced acid, 1,2-hydroxystearic acid and oleic acid. In such embodiments, the nonionic hydrophilic segment of the diepoxypropyl terminated compound has a molecular weight of from 500 to 3000 and comprises from 10% to 100% of an oxirane group (C _{2- 4} alkylene oxide) fragment.

Each of the foregoing embodiments of the polyacid-terminated polyamine and the monoepoxy-terminated polymer can be combined into different embodiments of the nonionic polyamine rheology modifier.

Other embodiments disclosed herein provide a nonionic polyamine rheology modifier which can be obtained by a process comprising the steps of reacting a polyacid terminated polyamine with an alkyl glycidyl ether To form an intermediate; the intermediate is then reacted with a monoisocyanate-terminated polymer having a nonionic hydrophilic segment.

In one embodiment, the polyacid-terminated polyamine is prepared by reacting at least one dicarboxylic acid having 3 to 54 carbon atoms and/or a tricarboxylic acid with at least one diamine. . In such embodiments, the dicarboxylic acid is selected from the group consisting of malonic acid, succinic acid, glutamic acid, adipic acid, pimelic acid, suberic acid, azelaic acid, Azelaic acid, dodecanedioic acid, isophthalic acid and dimer fatty acids. In another embodiment, the tricarboxylic acid is selected from the group consisting of citric acid, propane-1,2,3-tricarboxylic acid, 1,2,4-butanetricarboxylic acid, benzene- 1,3,5-tricarboxylic acid, 1,2,4-benzenetricarboxylic acid, biphenyl-3,4',5-tricarboxylic acid and trimeric fatty acid. In each of the foregoing embodiments, the diamine is selected from the group consisting of ethylene diamine, 1,4-diaminobutane, hexamethylenediamine, 1,10-decethylenediamine. 1,11-undecethylenediamine, 1,12-dodeethylenediamine, xylenediamine and 4,4'-diaminodiphenylmethane.

In one embodiment, the alkylepoxypropyl ether is selected from the group consisting of alkyl epoxidized propyl ethers having a C2-C16 alkyl group, such as ethyl epoxy propyl ether, Epoxypropyl isopropyl ether, butyl epoxy propyl ether, epoxy propyl isobutyl ether, tert-butyl epoxy propyl ether, octyl epoxy propyl ether, decyl epoxy propyl Ether, dodecyl epoxypropyl ether, tetradodecyl epoxypropyl ether and glycidyl hexadecyl ether.

In another embodiment, the monoisocyanate-terminated polymer having a nonionic hydrophilic segment is prepared by reacting a diisocyanate with a monohydroxy nonionic hydrophilic compound. In such embodiments, the diisocyanate is selected from the group consisting of toluene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, diphenylmethane-4,4'-di Isocyanate, dicyclohexylmethane-4,4'-diisocyanate, 1,4-bis(2-isocyanato-2-yl)benzene, trimethylhexamethylene diisocyanate or a mixture of such diisocyanates. In such embodiments, the monohydroxy nonionic hydrophilic compound has a molecular weight M of from 500 to 3000 g/mole and comprises an aliphatic, cycloaliphatic or aromatic end group having from 1 to 22 carbon atoms. Poly(C _2-4 alkylene oxide).

Each of the foregoing embodiments of the polyacid-terminated polyamine, alkylepoxypropyl ether, and monoisocyanate-terminated polymer can be combined into different embodiments of the nonionic polyamine rheology modifier .

In each of the foregoing embodiments of the nonionic polyamine rheology modifier, the cosolvent is selected from the group consisting of ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, Propylene glycol monomethyl ether butyl cyanohydrin solvent, N-methyl-2-pyrrolidone, 3-methoxy-3-methyl-1-butanol, 3-methoxy- 3-methyl-1-butanol acetate, methyl-5-(dimethylamino)-2-methyl-5-oxo valerate, N-methylmorphomorpholine.

其中X為經多重酸封端之聚醯胺且n=2~6。式(1)中之Y為選自由下列所組成之群組的端基之一或多者：

在一些實施態樣中，R1為具有1至22個碳原子之脂族、環脂族或芳族端基。在一些其他實施態樣中，R2為選自由下列所組成之群組的二異氰酸酯化合物之殘基部分：甲苯二異氰酸酯、二異氰酸異佛酮、六亞甲基二異氰酸酯、二苯甲烷-4,4'-二異氰酸酯、環己基甲烷-4,4'-二異氰酸酯、1,4-雙(2-異氰酸-2-基)苯、三甲基六亞甲基二異氰酸酯，且其中之X'為聚(C_2-4環氧烷)。 In another embodiment of the present disclosure, a nonionic polyamine rheology modifier is provided as in formula (1)

Wherein X is a polyacid terminated polyamine and n=2-6. Y in the formula (1) is one or more selected from the group consisting of the following groups:

In some embodiments, R1 is an aliphatic, cycloaliphatic or aromatic end group having from 1 to 22 carbon atoms. In some other embodiments, R2 is a residue portion of a diisocyanate compound selected from the group consisting of toluene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, diphenylmethane- 4,4'-diisocyanate, cyclohexylmethane-4,4'-diisocyanate, 1,4-bis(2-isocyanato-2-yl)benzene, trimethylhexamethylene diisocyanate, and X' is poly(C _2-4 alkylene oxide).

Instance

Example A-1: Synthesis of Polyamines by Multiple Acid Blocking

0.49 mole of dimer acid and 0.11 mole of adipic acid were charged into a 1 L four-necked flask equipped with a stirring apparatus, a temperature regulator, a steering apparatus, and a nitrogen introduction tube, followed by stirring and heating to 50 °C. 0.4 mol of ethylenediamine was gradually added and an exothermic state was observed, and the mixture was stirred and gradually heated to 175 ° C to carry out a dehydration reaction. A brown polyacid-terminated polyamine A-1 having an acid value of 74 mg KOH/g was obtained by a two (2) hour reaction.

Examples A-2 to A-8: Examples of polyamine-terminated polyamine synthesis

Further multiplexed acid terminated polyamine synthesis examples were carried out according to the synthesis method of Example 1 and using the compositions shown in Table 1 to obtain polyacid terminated polyamines A-2 to A-8.

Examples B1 to B2: Synthesis of monoepoxy terminated polymers with nonionic hydrophilic segments

The MPEG 1000 was charged into a four-necked round bottom flask equipped with a stirring device, a cold water condenser, a temperature regulator, and a nitrogen introduction tube. An equivalent amount of epichlorohydrin was added dropwise to the flask, which was carried out at 60 ° C for three (3) hours, and by centrifugation The liquid funnel was further extracted with a 5% aqueous NaOH solution to obtain a monoepoxy-terminated polymer B-1 having a nonionic hydrophilic segment.

Diethylene propyl PEG 1000 and triethylamine as a catalyst were placed in a four-necked round bottom flask equipped with a stirring apparatus, a cold water condenser, a temperature regulator, and a nitrogen introduction tube. Half equivalent of lauric acid was pre-melted at 70 ° C and gradually added to the flask, and the reaction was carried out at 85 ° C for six (6) hours to obtain a monoepoxy-terminated polymer B-2 having a nonionic hydrophilic segment.

Examples C1 to C2: Synthesis of Monoisocyanate Terminated Polymers with Nonionic Hydrophilic Fragments

One (1) Mohr MPEG550 was charged into a 1 L four-necked flask equipped with a stirring device, a temperature regulator and a nitrogen introduction tube, and heated to 70 ° C. When the MPEG compound was melted, one (1) Mo IPI was added. It was gradually added to the flask, then cooled to 50 ° C, and 0.15 wt% of triethylamine was added. The monoisocyanate terminated polymer synthesis example C-1 was obtained by changing the NCO% from 10.8% to 5.4%.

The monoisocyanate-terminated polymer synthesis example C-2 was carried out according to the synthetic procedure of Example C-1, and the NCO% was changed from 6.9% to 3.45% to obtain the target intermediate.

Example 1: Synthesis of nonionic polyamine rheology modifier

One (1) mole of polyacid-terminated polyamine A-1 and 2 mole of monoepoxy terminated polymer B-1 was charged with a stirring device, a cold water condenser, a temperature regulator And a four-necked round bottom flask with a nitrogen introduction tube. 0.15 wt% of triethylamine as a catalyst was added to the flask and the reaction was carried out at 120 ° C for six (6) hours to obtain the nonionic rheology modifier Example 1.

Examples 2 to 4: Synthesis examples of nonionic polyamine rheology modifiers

Examples of other nonionic polyamine rheology modifiers were synthesized according to the synthesis method of Example 1 and using the compositions shown in Table 4 to obtain nonionic polyamine rheology modifier examples 2 to 4.

Example 5: Synthesis of nonionic polyamine rheology modifier

One (1) mole of polyacid-terminated polyamine A-3 was charged into a four-necked round bottom flask equipped with a stirring apparatus, a cold water condenser, a temperature regulator, and a nitrogen introduction tube, and heated to 120 ° C to melt 2 mol of BGE, 0.15 wt% of triethylamine as a catalyst was added to the flask, and then the reaction was carried out at 120 ° C for six (6) hours to obtain a hydroxypolyamine having an acid value of <1 mg KOH/g. The mixture was then cooled to 70 ° C, and two (2) moles of monoisocyanate-terminated polymer C-1 was added to the flask and reacted with the hydroxypolyamine intermediate for five (5) hours while the NCO % is less than 0.1% to obtain a nonionic polyamine rheology modifier.

Examples 6 to 12: Synthesis examples of nonionic polyamine rheology modifiers

Examples of other nonionic polyamine rheology modifiers were synthesized according to the synthesis method of Example 5 and using the compositions shown in Table 4 to obtain nonionic polyamine rheology modifier examples 6 to 12.

Test case

A non-ionic polyamine rheology modifier was applied to the aqueous styrene acrylic resin coating of the composition shown in Table 5 below for the performance test of the aqueous coating.

Method for preparing waterborne coatings:

Deionized water, Levelol W-469, DAPRO DF677, AS2610 and Deuadd MA-95 (10%) were mixed with stirring to produce a base coat as Part A. BG and deionized water, NUOSPESE FN265 and AWA 40596 (50%) used as a cosolvent were mixed together under stirring to produce an aluminum paste as Part B. Part B was added to Part A with stirring, and then a rheology modifier and a thickener Rheolate 150 were added to produce an aqueous coating.

Evaluate KU viscosity and Brookfield viscosity of waterborne coatings:

The initial and overnight KU viscosity of the aqueous coating was measured by a KU viscometer at 25 °C.

The Brookfield viscosity (cPs) of the aqueous coating at 10 ° C to 100 rpm at 25 ° C was measured using a DV-II viscometer with a mandrel LV3 and the ratio (viscosity at 10 rpm / viscosity at 100 rpm) was calculated.

Anti-settling test:

The coating was diluted with deionized water to a viscosity of 12 to 15 seconds (25 ° C) using a NK2 viscosity cup, the diluted coating was transferred to a 50-mL glass test tube, and the deposited AWA 40596 was measured. The percentage of volume to the overall coating volume.

Performance measurement of nonionic polyamine rheology modifier for waterborne coatings The test results are shown in Table 6. These results show that the rheology modifier of the present invention exhibits good effects in rocking and visbreaking properties, prevents precipitation of metallic pigments, and contributes to improved pigment orientation of metallic pigments when aqueous coating systems are used.

Claims (23)

A nonionic rheology modifier composition for aqueous coatings derived from a process comprising the steps of: (1) multi-acid terminated polyamines with nonionic The monoepoxy-terminated polymer of the hydrophilic segment reacts to form a polymer; and (2) the polymer is dispersed in water in a cosolvent to obtain the rheology modifier dispersion. The nonionic rheology modifier composition of claim 1, wherein the polyacid-terminated polyamine is obtained by at least one dicarboxylic acid having 3 to 54 carbon atoms and/or The tricarboxylic acid is obtained by reacting with at least one diamine. The nonionic rheology modifier composition of claim 2, wherein the dicarboxylic acid is selected from the group consisting of malonic acid, succinic acid, glutamic acid, adipic acid, Pimelic acid, suberic acid, azelaic acid, sebacic acid, dodecanedioic acid, isodecanoic acid and dimer fatty acids. The nonionic rheology modifier composition of claim 2, wherein the tricarboxylic acid is selected from the group consisting of citric acid, propane-1,2,3-tricarboxylic acid, 1 , 2,4-butanetricarboxylic acid, benzene-1,3,5-tricarboxylic acid, 1,2,4-benzenetricarboxylic acid, biphenyl-3,4',5-tricarboxylic acid and trimeric fatty acid . The nonionic rheology modifier composition of claim 2, wherein the diamine is selected from the group consisting of ethylenediamine, 1,4-diaminobutane, and hexamethylene Diamine, 1,10-decethylenediamine, 1,11-undecethylenediamine, 1,12-dodeethylenediamine, xylenediamine and 4,4'-di Aminodiphenylmethane. The nonionic rheology modifier composition of claim 1, wherein the monoepoxy-terminated polymer having a nonionic hydrophilic segment is obtained by the following steps: (1) obtaining epichlorohydrin (epichlorohydrin) is reacted with a monohydroxy nonionic hydrophilic compound, or (2) a monoalkyl acid is reacted with a diepoxypropyl-terminated nonionic hydrophilic compound. The nonionic rheology modifier composition of claim 6, wherein the monohydroxy nonionic hydrophilic compound comprises an aliphatic, cycloaliphatic or aromatic end group having 1 to 22 carbon atoms. Poly(C _2-4 alkylene oxide), and wherein the monohydroxy nonionic hydrophilic compound has a molecular weight of from 500 to 3000 g/mole. The nonionic rheology modifier composition of claim 6, wherein the monoalkyl acid is selected from the group consisting of acetic acid, butyric acid, caproic acid, caprylic acid, capric acid, and lauric acid. , myristic acid, palmitic acid, stearic acid, behenic acid, 1,2-hydroxystearic acid and oleic acid. The nonionic rheology modifier composition of claim 6, wherein the nonionic hydrophilic segment of the diepoxypropyl-terminated nonionic hydrophilic compound has a molecular weight of 500 to 3,000. And a poly(C _2-4 -alkylene oxide) fragment containing 10% to 100% of an oxirane group. A nonionic rheology modifier composition for aqueous coatings derived from a process comprising the steps of: (1) reacting a polyacid terminated polyamine with an alkyl glycidyl ether To form an intermediate; (2) reacting the intermediate with a monoisocyanate-terminated polymer having a nonionic hydrophilic segment to form a polymer; and (3) dispersing the polymer in water with a co-solvent to obtain The rheology modifier dispersion. The nonionic rheology modifier composition of claim 10, wherein the polyacid-terminated polyamine is obtained by at least one dicarboxylic acid having 3 to 54 carbon atoms and/or The tricarboxylic acid is obtained by reacting with at least one diamine. The nonionic rheology modifier composition of claim 11, wherein the dicarboxylic acid is selected from the group consisting of malonic acid, succinic acid, glutamic acid, adipic acid, Pimelic acid, suberic acid, azelaic acid, sebacic acid, dodecanedioic acid, isodecanoic acid and dimer fatty acids. The nonionic rheology modifier composition of claim 11, wherein the tricarboxylic acid is selected from the group consisting of citric acid, propane-1,2,3-tricarboxylic acid, 1 , 2,4-butanetricarboxylic acid, benzene-1,3,5-tricarboxylic acid, 1,2,4-benzenetricarboxylic acid, biphenyl-3,4',5-tricarboxylic acid and trimeric fatty acid . The nonionic rheology modifier composition of claim 11, wherein the diamine is selected from the group consisting of ethylenediamine, 1,4-diaminobutane, and hexamethylene Diamine, 1,10-decethylenediamine, 1,11-undecethylenediamine, 1,12-dodeethylenediamine, xylenediamine and 4,4'-diaminodiphenyl Methane. The nonionic rheology modifier composition of claim 10, wherein the alkylepoxypropyl ether is selected from the group consisting of a group consisting of alkyl epoxidized propyl ethers of up to sixteen carbon atoms, such as ethyl epoxidized propyl ether, epoxy propyl isopropyl ether, butyl epoxidized propyl ether, epoxy propyl Isobutyl ether, tert-butyl epoxypropyl ether, octyl epoxypropyl ether, mercapto epoxidized propyl ether, dodecyl epoxypropyl ether, tetradodecyl epoxypropyl Ether and epoxypropyl hexadecyl ether. The nonionic rheology modifier composition of claim 10, wherein the monoisocyanate-terminated polymer is produced by reacting a diisocyanate with a monohydroxy nonionic hydrophilic compound. The nonionic rheology modifier composition of claim 11, wherein the diisocyanate is selected from the group consisting of toluene diisocyanate, isophorone diisocyanate, hexamethylene diene Isocyanate, diphenylmethane-4,4'-diisocyanate, dicyclohexylmethane-4,4'-diisocyanate, 1,4-bis(2-isocyanato-2-yl)benzene, trimethylhexa Methyl diisocyanate or a mixture of such diisocyanates. The nonionic rheology modifier composition of claim 11, wherein the monohydroxy nonionic hydrophilic compound comprises poly(C _2-4 alkylene oxide) _n and has 1 to 22 carbon atoms. An aliphatic, cycloaliphatic or aromatic end group, and wherein the monohydroxy nonionic hydrophilic compound has a molecular weight of from 500 to 3000 g/mole. The nonionic rheology modifier composition of claim 1 or 10, wherein the cosolvent is selected from the group consisting of ethylene glycol monomethyl ether, ethylene glycol monoethyl ether , propylene glycol monomethyl ether butyl cyanohydrin solvent, N-methyl-2-pyrrolidone, 3-methoxy-3-methyl-1-butanol, 3-methoxy-3-methyl 1-butanol acetate, methyl-5-(dimethylamino)- 2-methyl-5-oxo valerate, N-methylmorphomorpholine. Nonionic polyamine rheology modifier as formula (1) Wherein X is a polyacid-terminated polyamine, n=2-6, and Y in formula (1) is one or more selected from the group consisting of: Wherein R1 is an aliphatic, cycloaliphatic or aromatic end group having 1 to 22 carbon atoms, and R2 is a residue portion of a diisocyanate compound selected from the group consisting of toluene diisocyanate, diisocyanate Isophorone, hexamethylene diisocyanate, diphenylmethane-4,4'-diisocyanate, dicyclohexylmethane-4,4'-diisocyanate, 1,4-bis(2-isocyanate-2- Benzo, trimethylhexamethylene diisocyanate, and X' is poly(C _2-4 alkylene oxide). For example, the composition of claim 20, where Y is: For example, the composition of claim 20, where Y is: For example, the composition of claim 20, where Y is: