RHEOLOGY MODIFIER

Abstract

A rheology modifier obtainable by polymerizing (i) at least one ethylenically unsaturated carboxylic acid; (ii) at least one nonionic ethylenically unsaturated surfactant monomer, (iii) at least one C.sub.1-C.sub.2-alkyl methacrylate, and (iv) at least one C.sub.2-C.sub.4-alkyl acrylate, where the alkyl chain length averaged over the number of alkyl groups of the alkyl acrylate is 2.1 to 4.0. The polymerization is carried out in the presence of at least one hydrocarbon comprising at least one XH-group, wherein X is selected from the group consisting of O, P, N and S. Liquid formulations and particles containing liquid detergents comprising the rheology modifier are also described.

Claims

1. A rheology modifier obtainable by polymerizing (i) at least one ethylenically unsaturated carboxylic acid; (ii) at least one nonionic ethylenically unsaturated surfactant monomer, (iii) at least one C.sub.1-C.sub.2-alkyl methacrylate, and (iv) at least one C.sub.2-C.sub.4-alkyl acrylate, where the alkyl chain length averaged over the number of alkyl groups of the alkyl acrylate is 2.1 to 4.0; in the presence of at least one hydrocarbon comprising at least one XH-group, wherein X is selected from the group consisting of O, P, N and S.

2. The rheology modifier according to claim 1, wherein the at least one hydrocarbon is selected from the group consisting of substituted and non-substituted oligo- and polysaccharides.

3. The rheology modifier according to claim 1, wherein the at least one hydrocarbon is selected from the group consisting of substituted and non-substituted β-1,4-D-glucopyranosides.

4. The rheology modifier according to claim 1, wherein the at least one hydrocarbon is selected from the group consisting of carboxymethylcellulose and starch.

5. The rheology modifier according to claim 1, wherein the at least one nonionic ethylenically unsaturated surfactant monomer has the general formula (I)
R—O—(CH.sub.2—CHR′—O).sub.n—CO—CR″′CH.sub.2   (I) in which R is C.sub.6-C.sub.30-alkyl, R′ is hydrogen or methyl, R″ is hydrogen or methyl, and n is an integer from 2 to 100.

6. The rheology modifier according to claim 1, wherein the at least one ethylenically unsaturated carboxylic acid is selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid and maleic acid.

7. The rheology modifier according to claim 1, wherein the alkyl acrylate comprises 5 to 85% by weight, based on the total weight of the alkyl acrylate, of copolymerized units of n-butyl acrylate.

8. The rheology modifier according to claim 1, further comprising at least one of an anionic and a nonionic emulsifier.

9. The rheology modifier according to claim 8, wherein the emulsifier has the general formula (II)
R—O—(CH.sub.2—CHR′—O).sub.n—X   (II) wherein R is C.sub.6-C.sub.30-alkyl, R′ is hydrogen or methyl, X is hydrogen or SO.sub.3M, M is hydrogen or an alkali metal, and n is an integer from 2 to 100.

10. The rheology modifier according to claim 1, wherein the at least one hydrocarbon is present in an amount of 1 to 50% by weight, based on the total weight of the alkyl acrylate.

11. A liquid formulation comprising the rheology modifier as defined in claim 1 and at least one component selected from the group consisting of gas bubbles, nanoparticles, and microcapsules, wherein the gas bubbles, nanoparticles, and microcapsules comprise at least one active ingredient selected from the group consisting of enzymes, perfumes, pharmaceuticals, organic particles, pigments, fibers, biocides, herbicides and fungicides.

12. (canceled)

13. A liquid detergent composition, comprising at least one rheology modifier as defined in claim 1, at least one surfactant, a liquid continuous phase comprising water and at least one component, dispersed in said liquid continuous phase.

14. The liquid detergent composition according to claim 13, wherein said continuous phase comprises said rheology modifier.

15. The liquid detergent composition according to claim 13 wherein the at least one surfactant comprises at least one anionic surfactant and at least one nonionic surfactant.

16. The liquid detergent composition according to claim 15, wherein the anionic surfactant is comprised in a total amount from 2 to 20 wt. % relative to the liquid detergent composition.

17. The liquid detergent composition according to claim 15, wherein the nonionic surfactant is comprised in a total amount from 1 to 10 wt. % relative to the liquid detergent composition.

18. The liquid detergent composition according to claim 13 further comprising at least one inorganic salt.

19. The liquid detergent composition according to claim 18, wherein the at least one inorganic salt is comprised in a total amount from 0.1 to 1 wt. % relative to the liquid detergent composition.

20. The liquid detergent composition according to claim 13, wherein the at least one component dispersed in the liquid continuous phase particles comprises a particulate solid selected from the group consisting of microcapsules and pigments.

21. The liquid detergent composition according to claim 20, wherein the particulate solid has an average particle size X.sub.50,3 of from 0.05 to 500 μm.

Description

EXAMPLES

[0189]

TABLE-US-00001 TABLE 1 Abbreviations: EA Ethylacrylate BA n-Butylacrylate EHA Ethylhexylacrylate MAS Methacrylic acid AS Acrylic acid AM Acrylamide ASSOC 60% Lutensol AT 25 Methacrylate [═(C16-18)-(EO)25-Methacrylate, 20% Methacrylic acid, 20% water] PETIA Pentaerythritol tri/tetraacrylate BDA2 Butandioldiacrylate Maltodextrin Watersoluble mixture obtained by hydroly- sis of starch (Poly-α-glucose) CMC80 Carboxymethylcellulose with 80 mPas at 20 rmp CMC150 Carboxymethylcellulose with 150 mPas at 20 rpm CMC230 Carboxymethylcellulose with 230 mPas at 20 rpm PVP Poly(1-vinyl-2-pyrrolidone) with viscosity of 20 mPas at 20% aqueous solution 2-EHTG 2-Ethylhexyl thioglycolate SDS Sodium lauryl sulfate C12-Alkyldiphenyloxide benzene,1,1′-oxybis, tetrapropylene deriv- disulfonate atives, sulfonated, sodium salts Sodium lauryl ether Sodium lauryl ether sulphate with critical sulfate micel concentration of 0.38 g NaPS Sodiumperoxodisulfate H2O2 Hydrogen peroxide PVP4 Poly(1-vinyl-2-pyrrolidone) with viscosity of 3.7 mPas at 20% aqueous solution Flamenco Flamenco Sparkle Gold 220J Chione Chione ™ HD Infinite White S130V Trilon B Tetrasodium ethylenediaminetetraacetate

Comparative Example V1.1

Production of a Rheology Modifier in the Absence of a Hydrocarbon

[0190] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator reflux condenser, inside thermo sensor and metering station, 850.2 g deionized water, 0.66 g emulsifier SDS (15% in water) and 52.0 g PVP were mixed. At 85° C. 1.86 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 213.56 g deionized water, monomers (78.0 g methacrylic acid, 175.5 g ethylacrylate, 8.13 g ASSOC, 7.8 g emulsifier SDS (15% in water), and 2.89 g emulsifier C12-Alkyldiphenyloxide disulfonate (45% in water)) were added and constantly stirred at 85° C. After complete addition of the emulsion 13.94 g deionized water was added. After 15 minutes following the addition of the emulsion 26 g H.sub.2O.sub.2 (1% in water) and 10.4 g ascorbic acid (1% in water) were added at a constant rate for 2 hours and 15 minutes to the mixture. Then 0.13 g ethylenediaminetetraacetic acid ferric potassium com (4% in water) was added. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 26 g H.sub.2O.sub.2 (1% in water) and 39 g ascorbic acid (1% in water) were added at a constant rate for 1 hour. An aqueous polymer dispersion with 21% solid content was obtained.

Comparative Example V1.2

Production of a Rheology Modifier in the Absence of a Hydrocarbon

[0191] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 898.23 g deionized water, 2.72 g emulsifier sodium lauryl ether sulfate (28% in water) were mixed. At 75° C. 8.71 g NaPS (7% in water) were added and the mixture was stirred at 75° C. for 5 minutes. For 2 hours an emulsion consisting of 184.37 g deionized water, monomers (22.88 g acrylic acid, 45.75 g acrylamide, 228.75 g n-butylacrylate, 38.13 g ASSOC and 13.62 g emulsifier Sodium lauryl ether sulfate (28% in water)) were added and constantly stirred at 75° C. After complete addition of the emulsion 14.64 g deionized water was added. For another 1 hour at 75° C. further polymerization took place. Subsequently 0.15 g ethylenediaminetetraacetic acid ferric potassium complex (1% in water) and 6.1 g H.sub.2O.sub.2 (5% in water) were added to the mixture. Then 15.25 g sodium hydroxymethansulfinate (1% in water) was added for 1 hour at 75° C. Subsequently the reaction mixture was cooled slowly to room temperature. An aqueous polymer dispersion with 21% solid content was obtained.

Comparative Example V1.3

Production of a Rheology Modifier in the Absence of a Hydrocarbon

[0192] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 844.12 g deionized water, 2.72 g emulsifier sodium lauryl ether sulfate (28% in water) were mixed. At 75° C. 32.68 g NaPS (7% in water) were added and the mixture was stirred at 75° C. for 5 minutes. For 2 hours an emulsion consisting of 184.37 g deionized water, monomers (22.88 g acrylic acid, 122 g acrylamide, 95.31 g n-butylacrylate, 95.31 g ethylacrylate, 38.13 g ASSOC and 13.62 g emulsifier sodium lauryl ether sulfate (28% in water)) were added and constantly stirred at 75° C. After complete addition of the emulsion 14.64 g deionized water was added. For another 1 hour at 75° C. further polymerization took place. Subsequently 0.15 g ethylenediaminetetraacetic acid ferric potassium complex (1% in water) and 6.1 g H.sub.2O.sub.2 (5% in water) were added to the mixture. Then 15.25 g sodium hydroxymethansulfinate (1% in water) was added for 1 hour at 75° C. Subsequently the reaction mixture was cooled slowly to room temperature. An aqueous polymer dispersion with 21% solid content was obtained.

Comparative Example V2.2

Production of a Rheology Modifier in the Absence of a Hydrocarbon

[0193] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator reflux condenser, inside thermo sensor and metering station, 701.48 g deionized water, 2.8 g emulsifier SDS (15% in water) were mixed. At 85° C. 2 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 229.88 g deionized water, monomers (84 g methacrylic acid, 94.5 g n-butylacrylate, 94.5 g ethylacrylate, 8.75 g ASSOC, 8.4 g emulsifier SDS (15% in water), and 3.11 g emulsifier C12-Alkyldiphenyloxide disulfonate (45% in water)) were added and constantly stirred at 85° C. After 15 minutes following the addition of the emulsion 28 g H.sub.2O.sub.2 (1% in water) and 11.2 g ascorbic acid (1% in water) were added at a constant rate for 2 hours and 15 minutes to the mixture. After complete addition of the emulsion 15.12 g deionized water was added. Then 0.14 g ethylenediaminetetraacetic acid ferric potassium complex (4% in water) was added. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 28 g H.sub.2O.sub.2 (1% in water) and 42 g ascorbic acid (1% in water) were added at a constant rate for 1 hour. An aqueous polymer dispersion with 21% solid content was obtained.

Comparative Example V2.3

Production of a Rheology Modifier in the Absence of a Hydrocarbon

[0194] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 651.92 g deionized water, 0.69 g emulsifier SDS (15% in water) were mixed. At 85° C. 1.86 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 215.2 g deionized water, monomers (78 g methacrylic acid, 182 g ethylacrylate, 7.8 g emulsifier SDS (15% in water), and 2.89 g emulsifier C12-Alkyldiphenyloxide disulfonate (45% in water)) were added and constantly stirred at 85° C. After complete addition of the emulsion 13.94 g deionized water was added. After 15 minutes following the addition of the emulsion 26 g H.sub.2O.sub.2 (1% in water) and 10.4 g ascorbic acid (1% in water) were added at a constant rate for 2 hours and 15 minutes to the mixture. Then 0.13 g ethylenediaminetetraacetic acid ferric potassium complex (4% in water) was added. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 26 g H.sub.2O.sub.2 (1% in water) and 39 g ascorbic acid (1% in water) were added at a constant rate for 1 hour. An aqueous polymer dispersion with 21% solid content was obtained.

Example B1.4

Production of a Rheology Modifier with CMC

[0195] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 847.55 g deionized water, 0.69 g emulsifier SDS (15% in water) and 52 g CMC150 were mixed. The following steps of the process were identical to the process described in Comparative Example V2.3: At 85° C. 1.86 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 215.2 g deionized water, monomers (78 g methacrylic acid, 182 g ethylacrylate, 7.8 g emulsifier SDS (15% in water), and 2.89 g emulsifier C12-Alkyldiphenyloxide disulfonate (45% in water)) were added and constantly stirred at 85° C. After complete addition of the emulsion 13.94 g deionized water was added. After 15 minutes following the addition of the emulsion 26 g H.sub.2O.sub.2 (1% in water) and 10.4 g ascorbic acid (1% in water) were added at a constant rate for 2 hours and 15 minutes to the mixture. Then 0.13 g ethylenediaminetetraacetic acid ferric potassium complex (4% in water) was added. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 26 g H.sub.2O.sub.2 (1% in water) and 39 g ascorbic acid (1% in water) were added at a constant rate for 1 hour. An aqueous polymer dispersion with 21% solid content was obtained.

Example B1.11

Production of a Rheology Modifier with CMC

[0196] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 806.82 g deionized water, 2.8 g emulsifier SDS (15% in water) and 28 g CMC150 were mixed. The following steps of the process were identical to the process described in Comparative Example V2.2: At 85° C. 2 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 229.88 g deionized water, monomers (84 g methacrylic acid, 94.5 g n-butylacrylate, 94.5 g ethylacrylate, 8.75 g ASSOC, 8.4 g emulsifier SDS (15% in water), and 3.11 g emulsifier C12-Alkyldiphenyloxide disulfonate (45% in water)) were added and constantly stirred at 85° C. After 15 minutes following the addition of the emulsion 28 g H.sub.2O.sub.2 (1% in water) and 11.2 g ascorbic acid (1% in water) were added at a constant rate for 2 hours and 15 minutes to the mixture. After complete addition of the emulsion 15.12 g deionized water was added. Then 0.14 g ethylenediaminetetraacetic acid ferric potassium complex (4% in water) was added. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 28 g H.sub.2O.sub.2 (1% in water) and 42 g ascorbic acid (1% in water) were added at a constant rate for 1 hour. An aqueous polymer dispersion with 21% solid content was obtained.

[0197] Examples B1.1 to B1.3, B1.5 to B1.10, B1.12 and B1.13 were produced via the same process except that the amount of the starting material was varied as can be derived from Table 2.

Example B2.1

Production of a Rheology Modifier with CMC

[0198] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 882.14 g deionized water, 0.14 g ethylenediaminetetraacetic acid ferric potassium complex (4% in water), 2.8 g emulsifier SDS (15% in water) and 28 g CMC150 were mixed. At 85° C. 2 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 229.99 g deionized water, monomers (84 g methacrylic acid, 96.6 g n-butylacrylate, 96.6 g ethylacrylate, 3.5 g ASSOC, 8.4 g emulsifier SDS (15% in water), and 3.11 g emulsifier C12-Alkyldiphenyloxide disulfonate (45% in water)) were added and constantly stirred at 85° C. 11.2 g ascorbic acid (0.25% in water) was added in 2 hours and 30 minutes. After 15 minutes following the addition of the emulsion 0.56 g H.sub.2O.sub.2 (1% in water) was added. After complete addition of the emulsion 15.01 g deionized water was added. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 1.12 g H.sub.2O.sub.2 (1% in water) and 21 g ascorbic acid (1% in water) were added at a constant rate for 1 hour. An aqueous polymer dispersion with 21% solid content was obtained.

[0199] Example B2.2 was produced via the same process except that the amount of the starting material was varied as can be derived from Table 2.

Example B3.1

Production of a Rheology Modifier with CMC and Starch

[0200] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 740.52 g deionized water, 0.17 g ethylenediaminetetraacetic acid ferric potassium complex (4% in water), 1.21 g emulsifier sodium lauryl ether sulfate (28% in water), 68 g maltodextrin (50% in water) and 17 g CMC150 were mixed. At 85° C. 2.43 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes.

[0201] For 2 hours an emulsion consisting of 279.28 g deionized water, monomers (102 g methacrylic acid, 114.75 g n-butylacrylate, 114.75 g ethylacrylate, 10.63 g ASSOC, 13.96 g emulsifier sodium lauryl ether sulfate (28% in water)) were added and constantly stirred at 85° C. 13.6 g ascorbic acid (0.25% in water) was added in 2 hours and 30 minutes. After 15 minutes following the addition of the emulsion 0.68 g H.sub.2O.sub.2 (1% in water) was added. After complete addition of the emulsion 10.91 g deionized water and 8.49 g NaPS (1% in water) were added during 10 minutes. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 1.36 g H.sub.2O.sub.2 (1% in water) and 25.5 g ascorbic acid (2% in water) were added at a constant rate for 2 hour. An aqueous polymer dispersion with 26% solid content was obtained.

[0202] Examples B3.2 to B3.5 were produced via the same process except that the amount of the starting material was varied as can be derived from Table 2.

Example B4.1

Production of a Rheology Modifier with Starch

[0203] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 644.46 g deionized water, 2.46 g emulsifier sodium lauryl ether sulfate (28% in water) and 184 g maltodextrin (50% in water) were mixed. At 85° C. 18.4 g NaPS (1% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 339.99 g deionized water, monomers (126.5 g methacrylic acid, 143.75 g n-butylacrylate, 143.75 g ethylacrylate, 57.5 g ASSOC, 22.18 g emulsifier sodium lauryl ether sulfate (28% in water)73.6 g NaPS (1% in water)) were added and constantly stirred at 75° C. After complete addition of the emulsion 18.4 g deionized water was added. For another 1 hour at 85° C. further polymerization took place. Subsequently 0.92 g ethylenediaminetetraacetic acid ferric potassium complex (1% in water) and 9.2 g H.sub.2O.sub.2 (5% in water) were added to the mixture. Then 23 g sodium hydroxymethansulfinate (1% in water) was added for 1 hour at 85° C. Subsequently the reaction mixture was cooled slowly to room temperature. An aqueous polymer dispersion with 31% solid content was obtained.

Example B4.2

Production of a Rheology Modifier with CMC

[0204] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 1473.3 g deionized water, 0.92 g ethylenediaminetetraacetic acid ferric potassium complex (1% in water), 4.6 g emulsifier SDS (15% in water) and 55.2 g CMC150 were mixed. At 85° C. 3.29 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 229.88 g deionized water, monomers (138 g methacrylic acid, 159.85 g n-butylacrylate, 159.85 g ethylacrylate, 2.88 g ASSOC, 13.8 g emulsifier SDS (15% in water) and 5.11 g C12-Alkyldiphenyloxide disulfonate (45% in water) were added and constantly stirred at 85° C. After complete addition of the emulsion 24.66 g deionized water was added. After 15 minutes following the addition of the emulsion 0.92 g H.sub.2O.sub.2 (25% in water) and 18.4 g ascorbic acid (0.25% in water) added in 2 hours and 15 minutes. Then 1.84 g H.sub.2O.sub.2 (25% in water) were added. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 46 g ascorbic acid (2% in water) were added at a constant rate for 2 hour. An aqueous polymer dispersion with 21% solid content was obtained.

[0205] Example B2.2 was produced via the same process except that the amount of the starting material was varied as can be derived from Table 2.

Example B5.1

Production of a Rheology Modifier with high CMC Content

[0206] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 1240.6 g deionized water, 0.71 g emulsifier sodium lauryl ether sulfate (28% in water) and 100 g CMC80 were mixed. At 90° C. 1.43 g NaPS (7% in water) were added and the mixture was stirred at 85° C. for 5 minutes. For 3 hours an emulsion consisting of 226.66 g deionized water, monomers (80 g methacrylic acid, 60 g n-butylacrylate, 60 g ethylacrylate, 8 g PETIA (5% in 1,2-propandiole, 13.57 g emulsifier sodium lauryl ether sulfate (28% in water) were added and constantly stirred at 90° C. For 3 hours were simultaneously added 90 g NaPS (1% in Water). After complete addition of the emulsion and NaPS 10.72 g deionized water was added. For another 0.5 hour at 90° C. further polymerization took place. Subsequently the reaction mixture was cooled slowly to room temperature. At 90° C. 0.8 g H.sub.2O.sub.2 (25% in water) were added and during cooling 20 g ascorbic acid (2% in water) were added at a constant rate for 2 hours. An aqueous polymer dispersion with 16% solid content was obtained.

[0207] Examples B5.2, B5.7, B5.8, B5.9, B5.10, B5.11, B5.13, B5.14, B5.15, B5.16, B5.18, B5.19, B5.21 were produced via the same process except that the amount of the chemical ingredients were varied as can be derived from Table 2.

Example B5.3

Production of a Rheology Modifier with High CMC Content

[0208] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 1070.1 g deionized water, 0.54 g emulsifier sodium lauryl ether sulfate (28% in water) and 75 g CMC150 were mixed. At 75° C. 6.43 g NaPS (7% in water) were added and the mixture was stirred at 75° C. for 5 minutes. For 2 hours an emulsion consisting of 94.56 g deionized water, monomers (60 g methacrylic acid, 44.63 g n-butylacrylate, 44.63 g ethylacrylate, 0.94 g ASSOC, 10.18 g emulsifier sodium lauryl ether sulfate (28% in water) were added and constantly stirred at 75° C. After complete addition of the emulsion 8.04 g deionized water was added. For another 1 hour at 75° C. further polymerization took place. Subsequently the reaction mixture was cooled slowly to room temperature. At 75° C. 0.6 g H.sub.2O.sub.2 (25% in water) were added and during cooling 15 g ascorbic acid (2% in water) were added at a constant rate for 2 hours. An aqueous polymer dispersion with 16% solid content was obtained.

[0209] Examples B5.4, B5.12, B5.20 were produced via the same process except that the amount of the chemical ingredients were varied as can be derived from Table 2.

Example B5.5

Production of a Rheology Modifier with CMC

[0210] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 1927.6 g deionized water, 1.2 g ethylenediaminetetraacetic acid ferric potassium complex (1% in water), 6 g emulsifier SDS (15% in water) and 72 g CMC150 were mixed. At 90° C. 4.29 g NaPS (7% in water) were added and the mixture was stirred at 90° C. for 5 minutes. For 2 hours an emulsion consisting of 492.84 g deionized water, monomers (180 g methacrylic acid, 208.5 g n-butylacrylate, 208.5 g ethylacrylate, 3.75 g ASSOC, 18 g emulsifier SDS (15% in water), and 6.67 g emulsifier C12-Alkyldiphenyloxide disulfonate (45% in water)) were added and constantly stirred at 90° C. After 15 minutes following the addition of the emulsion 1.2 g H.sub.2O.sub.2 (1% in water) were added and 18 g ascorbic acid (0.25% in water) were simultaneously added for 2 hours and 30 minutes. After complete addition of the emulsion 32.16 g deionized water was added. After complete addition of the ascorbic acid (0.25% in water) the reaction mixture was cooled slowly to room temperature. At 90° C. 2.4 g H.sub.2O.sub.2 (25% in water) were added and during cooling 60 g ascorbic acid (2% in water) were added at a constant rate for 2 hours. An aqueous polymer dispersion with 21% solid content

[0211] Examples B5.6, B5.17 were produced via the same process except that the amount of the chemical ingredients were varied as can be derived from Table 2.

Example B5.22

Production of a Rheology Modifier with CMC

[0212] In a stirring apparatus consisting of a 4 liter HWS vessel with anchor agitator, reflux condenser, inside thermo sensor and metering station, 1474.3 g deionized water, 0.92 g ethylenediaminetetraacetic acid ferric potassium complex (1% in water), 4.6 g emulsifier SDS (15% in water), 1.15 g Trilon B (tetrasodium ethylenediaminetetraacetate) and 55.2 g CMC150 were mixed. At 85° C. 3.29 g NaPS (7% in water) was added and the mixture was stirred at 85° C. for 5 minutes. For 2 hours an emulsion consisting of 377.84 g deionized water, monomers (138 g methacrylic acid, 159.85 g n-butylacrylate, 159.85 g ethylacrylate, 2.88 g ASSOC, 13.8 g emulsifier SDS (15% in water) and 5.11 g C12-Alkyldiphenyloxide disulfonate (45% in water) were added and constantly stirred at 85° C. After complete addition of the emulsion 24.66 g deionized water was added. After 15 minutes following the addition of the emulsion 0.92 g H.sub.2O.sub.2 (25% in water) was added and 18.4 g ascorbic acid (0.25% in water) was added in 2 hours and 15 minutes. Then 1.84 g H.sub.2O.sub.2 (25% in water) was added. Subsequently the reaction mixture was cooled slowly to room temperature. During cooling 46 g ascorbic acid (2% in water) was added at a constant rate for 2 hours. An aqueous polymer dispersion with 21% solid content was obtained.

TABLE-US-00002 TABLE 2 Summary of Examples Other components (pphm) C12-Alkyldiphe- Exam- Monomers (pphm) Malto- 2- nyloxide disul- Further ple EA BA EHA MAS AM ASSOC dextrin CMC150 PVP EHTG SDS fonate components V1.1 67.5 30 2.5 20 0.49 0.5 V1.2 75 7.5 7.5 10 1.5 AS Sodium lauryl ether sulfate V1.3 31.25 31.25 7.5 20 10 1.5 AS Sodium lauryl ether sulfate V2.2. 33.75 33.75 30 2.5 — — 0.6 0.5 V2.3. 70 — 30 — — — 0.49 0.5 B1.1 57.5 30 10 2.5 20 0.7 0.5 CMC80 B1.2 67.5 30 2.5 15 0.49 0.5 B1.3 67.5 30 2.5 10 0.6 0.5 CMC230 B1.4 70 30 20 0.49 0.5 B1.5 67.5 30 2.5 10 0.6 0.5 B1.6 67.5 30 2.5 10 0.6 0.5 2 alkyl-polygly- coside B1.7 67.5 30 2.5 10 5 0.49 0.5 B1.8 67.5 30 2.5 10 10 0.6 0.5 B1.9 67.5 30 2.5 10 5 0.6 0.5 Methoxy polyeth- yleneglycol 1000 methacrylate B1.10 67.5 30 2.5 10 10 1.15 0.5 PVP4 B1.11 33.75 33.75 30 2.5 10 0.6 0.5 B1.12 33.75 33.75 30 2.5 10 0.6 0.5 B1.13 37 37 25 1 10 0.6 0.5 B2.1 34.5 34.5 30 1 10 0.6 0.5 B2.2 33.75 33.75 30 2.5 10 0.6 0.5 B3.1 33.75 33.75 30 2.5 10  5 1.25 Sodium lauryl ether sulfate B3.2 33.75 33.75 30 2.5 5  5 1.25 Sodium lauryl ether sulfate B3.3 33.75 33.75 30 2.5 20  5 1.25 Sodium lauryl ether sulfate B3.4 33.75 33.75 30 2.5 20 10 1.25 Sodium lauryl ether sulfate B3.5 33.75 35.25 30 1 20 1.25 Sodium lauryl ether sulfate B4.1. 31.25 31.25 27.5 10 20 — 1.5 Sodium lauryl ether sulfate B4.2. 34.75 34.75 30 0.5 12 0.6 0.5 B5.1 30 30 40 50 2 CMC80 Sodium lauryl ether sulfate 0.2 PETIA B5.2 30 30 40 50 2 CMC80 Sodium lauryl ether sulfate B5.3 29.75 29.75 40 0.5 50 2 Sodium lauryl ether sulfate B5.4 29.75 29.75 40 0.5 50 2 CMC80 Sodium lauryl ether sulfate B5.5 34.75 34.75 30 0.5 12 0.6 0.5 0.05 NaPS B5.6 34.75 34.75 30 0.5 12 0.6 0.5 0.025 NaPS B5.7 30 30 40 50 0.25 2 CMC80 Sodium lauryl ether sulfate B5.8 30 30 40 50 0.25 2 CMC80 Sodium lauryl ether sulfate 0.2 PETIA B5.9 29.75 29.75 40 0.5 50 0.25 2 CMC80 Sodium lauryl ether sulfate B5.10 29.94 29.94 39.92 50 2 CMC80 Sodium lauryl ether sulfate 0.2 BDA2 B5.11 30 30 40 50 2 CMC80 Sodium lauryl ether sulfate 0.2 PETIA B5.12 29.75 29.75 40 0.5 50 2 CMC80 Sodium lauryl ether sulfate B5.13 30 30 40 50 0.25 2 CMC80 Sodium lauryl ether sulfate 0.2 PETIA B5.14 29.75 29.75 40 0.5 50 0.25 2 CMC80 Sodium lauryl ether sulfate B5.15 30 30 40 100  2 Sodium lauryl ether sulfate 0.2 BDA2 0.5 Acetic acid B5.16 30 30 40 40 2 Sodium lauryl ether sulfate 0.2 BDA2 0.5 Acetic acid B5.17 30 30 40 25 2 Sodium lauryl ether sulfate 0.2 BDA2 0.5 Acetic acid B5.18 28.75 28.75 40 2.5 50 2 Sodium lauryl ether sulfate 0.2 BDA2 0.5 Acetic acid 0.05 Sodiumhy- pophpsphite B5.19 25 25 40 10 50 2 Sodium lauryl ether sulfate 0.2 BDA2 0.5 Acetic acid 0.05 Sodiumhy- pophpsphite B5.20 29.75 29.75 40 0.5 100 2 CMC80 Sodium lauryl ether sulfate B5.21 30 30 40 50 0.1 2 CMC80 Sodium lauryl ether sulfate B5.22 34.75 34.75 30 0.5 12 0.7 0.5 0.1 Trilon B

[0213] Determination of the Viscosity

[0214] The viscosity subject to sheer was determined according to DIN 51550, DIN 53018 and DIN 53019 with a Brookfield Viscometer Model RV-03 at 0.3, 1 and 20 rpm (rounds per minute) with spindle Nr. 3 at 20° C.

[0215] Determination of Solid Content

[0216] The dispersion was dried at 140° C. for 30 minutes and the solid content in % was determined from the ration of dry residue to weighted sample.

[0217] Determination of LD-Value

[0218] The dispersion was diluted to 0.01% and the light transmission (LD) of the dispersion as compared to pure water as measure for particle size was measured optically with Hach DR/2010.

[0219] Determination of Stability of Microcapsules

[0220] Under gentle stirring perfume microcapsules (shell: based on melamine-formaldehyde condensate, comprising cationic charged polymer; core: perfume) were added to “Persil® Color” liquid detergent, followed by the inventive rheology modifier (B1.x to B4.x; view table 2); stirring was continued for 30 min. The pH was adjusted again to pH=8. The final formulation was stored at 50° C. for 4 weeks. Sedimentation and/or creaming was judged visually and rated in comparison to a liquid detergent formulation “Persil® Color” (Henkel AG & Co. KGaA, Germany) with perfume microcapsules and rheology modifier (V1.x to V2.x; view table 2) which is not a rheology modifier of the invention (=very bad). The final results are shown in Table 3.

TABLE-US-00003 TABLE 3 Properties of the Examples Microcapsule Stability Test Very bad: Brookfield .Math. −−− Viscosity .Math. 20 rpm Viscosity Very good: 1% ig mPas ++++ 1% ig liquid In liquid In liquid LD VE- detergent detergent detergent Example [%] Water formulation formulation formulation V1.1 76 990 −−− V1.2 96 20 −− V1.3 97 15 − V2.2. 97 1020 −− V2.3. 98 150 −−− B1.1 66 515 370 + B1.2 68 1020 955 800 ++++ B1.3 53 1200 1485 +++ B1.4 66 610 1100 950 ++++ B1.5 50 1070 870 862 ++++ B1.6 58 2150 905 866 ++++ B1.7 45 315 490 506 + B1.8 48 175 430 954 ++++ B1.9 55 530 510 492 +++ B1.10 48 375 745 742 +++ B1.11 54 785 1050 820 ++++ B1.12 58 20 700 540 +++ B1.13 55 230 2190 ++ B2.1 50 635 860 2585 +++ B2.2 57 350 690 1950 ++ B3.1 60 525 670 1690 +++ B3.2 52 905 810 1900 +++ B3.3 49 1110 670 1720 +++ B3.4 50 705 680 B3.5 92 1015 830 2410 ++ B4.1. 60 300 ++ B4.2. 48 1045 1560 2405 ++++

[0221] Determination of Stability of Pigments

[0222] For the determination of the pigment stability a premix of 98 g liquid detergent “Persil® Color” (Henkel AG & Co. KGaA, Germany) was poured into a glass vessel. Afterwards 0.1 gram of the pigment powder of “Flamenco Sparkle Gold 220J” or 0.01 gram “Prestige Soft silver” (Sudarshan, particle size 10 μm, bulk density 350 kg/m.sup.3), corresponding to 0.1% and 0.01% respectively, was added and gently homogenized for 1 min at about 1500 rpm. In the last formulation step the rheology modifier, as described in table 2 and 4, was added in an amount of 10 gram (20% solid content in aqueous solution), corresponding to 2% solid content in formulation. After additional stirring for 10 min the final liquid detergent formulation in the glass vessel was stored at 50° C. for 4 weeks. After the storage time the creaming and/or sedimentation of the pigments were determined as summarised in table 4 in the following way:

[0223] ++++ the pigments remain completely homogeneous distributed in the final formulation

[0224] −−−− the pigments are completely phase separated and not at all homogeneously distributed in the final formulation.

[0225] The evaluation steps in between are defined by the increasing amount of phase separated pigments.

[0226] The final results are shown in Table 4.

TABLE-US-00004 TABLE 4 Properties of the Examples Prestige Soft Flamenco Sparkle Silver Stability Gold 220J Stability Test Brookfield .Math. Test Very bad: Viscosity .Math. Very bad: −−− 1% ig, 20 −−− Very good: rpm Very good: ++++ ++++ LD (mPas) In liquid detergent In liquid deter- Example [%] VE-Water formulation 2% gent formulation V1.1 76 990 −−− n.d. V1.2 96 20 −−− n.d. V1.3 97 15 −−− −−− V2.2. 97 1020 −−− −−− V2.3. 98 150 −−− −−− B5.1 92 45 ++++ ++++ B5.2 93 45 +++ +++ B5.3 77 65 ++ +++ B5.4 85 55 +++ +++ B5.5 47 575 ++++ +++ B5.6 43 600 +++ +++ B5.7 89 55 ++ n.d. B5.8 93 15 +++ n.d. B5.9 92 15 ++ n.d. B5.10 92 45 ++++ n.d. B5.11 92 45 +++ n.d. B5.12 86 50 ++ n.d. B5.13 92 15 +++ n.d. B5.14 90 20 ++ n.d. B5.15 95 150 +++ n.d. B5.16 76 75 +++ n.d. B5.17 68 50 ++ n.d. B5.18 79 45 ++ n.d. B5.19 79 35 ++ n.d. B5.20 90 25 ++ n.d. B5.21 92 40 + n.d. n.d. = not determined