Use of polysaccharide microgels in detergents

Abstract

The proposed cluster of inventions relates to chemical industry, in particular to compositions of and additives in detergents designed for household, professional or personal use, to be used at home or industrially. The essence of this cluster of inventions lays in the use of polysaccharide microgels as an additive or the base in detergents, in particular as an antiresorption agent, thickener, or an agent for reducing surface tension at the interphase boundary, including also composition of detergents with polysaccharide microgels. The technological result of the application of these inventions is reduction of the quantity of surfactants in the detergent, while its detergency is no affected, which raises their ecological value and safety for the final users.

Claims

1. A detergent comprising water, at least one surfactant, and at least one cross-linked polysaccharide microgel, wherein the at least one polysaccharide microgel is at least one microgel based on modified starch, pectin, chitosan, or combinations thereof, and wherein the total concentration of surfactants in the detergent is from 0.1% to 15% by mass, and the total concentration of cross-linked polysaccharide microgels in the detergent is from 0.1 to 5% by mass.

2. The detergent of claim 1, wherein the detergent further comprises a range of acids constituting 0.1-50 mass % of the detergent.

3. The detergent of claim 1, wherein the detergent further comprises a range of alkalis constituting 0.1-50 mass % of the detergent.

4. The detergent of claim 1, wherein the at least one surfactant is an anionic surfactant.

5. The detergent of claim 1, wherein the at least one surfactant is a nonionic surfactant.

6. The detergent of claim 1, wherein the at least one surfactant comprises at least two surfactants, comprising an anionic surfactant and a nonionic surfactant.

7. The detergent of claim 1, further comprising a hydrotropic agent.

8. The detergent of claim 1, further comprising an organic solvent.

9. The detergent of claim 1, further comprising a thickener.

10. The detergent of claim 1, further comprising a dye or aroma.

11. The detergent of claim 1, wherein the at least one cross-linked polysaccharide microgel is based on modified starch.

12. The detergent of claim 1, wherein the at least one cross-linked polysaccharide microgel is based on pectin.

13. The detergent of claim 1, wherein the at least one cross-linked polysaccharide microgel is based on chitosan.

14. The detergent of claim 1, wherein the at least one cross-linked polysaccharide microgel is formed by chemical cross-linking of polysaccharide with a diether, diamine, dialdehyde, di-isocyanide, di-isocyanate or genipin cross-linking agent.

15. The detergent of claim 1, wherein the at least one cross-linked polysaccharide microgel is modified with hydrophobic substituents.

16. The detergent of claim 15, wherein the at least one cross-linked polysaccharide microgel is modified with hydrophobic substituents at a substitution level of between 5% to 50%.

17. The detergent of claim 11, wherein the modified starch is modified with hydrophobic substituents.

18. The detergent of claim 12, wherein the pectin is modified with hydrophobic substituents.

19. The detergent of claim 13, wherein the chitosan is modified with hydrophobic substituents.

Description

EXAMPLE 1. DISH AND CUTLERY WASHING LIQUID (NEUTRAL PH)

(1) Carboxylmethyl cellulose (CMC)-based microgel: 1% on dry weight basis, sodium laureth sulfate (coconut oil based): 4.5%, coconut diethanolamide (coconut oil based): 1.8%, table salt: 4%, a hydrotropic agent: 4%, preservative: 0.1%. Introduction of the microgel reduced the total concentration of anion and non-ionic surfactants from 10 to 6.3% without affecting detergency.

EXAMPLE 2. UNIVERSAL HOUSEHOLD LIQUID FOR EVERYDAY CLEANING (NEUTRAL PH)

(2) Pectin ammonium salt-based microgel: 0.5% on dry weight basis, sodium alkyl benzosulfate: 4.0%, coconut diethanolamide (coconut oil based): 2.5%, a hydrotropic agent: 4%, preservative: 0.1%. This microgel reduced the total concentration of anion and non-ionic surfactant from 10 to 6.5% without affecting detergency.

EXAMPLE 3. HYPOALLERGENIC LIQUID SOAP (NEUTRAL PH)

(3) Carboxymethylated starch-based microgel: 3% on dry weight basis, sodium laureth sulfate (coconut oil based): 3.5%, sodium alkyl benzosulfate: 1%, coconut diethanolamide (coconut oil based): 2.0%, glycerine: 2%, hydrotropic agent: 4%, preservative: 0.1%. This microgel decreased the total concentration of anion and non-ionic surfactant from 10 to 6.5% without affecting detergency.

EXAMPLE 4. FLOOR CLEANER (NEUTRAL PH)

(4) Chitosan-based microgel: 0.1% on dry weight basis; hexadecyl trimethyl ammonium chloride: 4.0%; elotant CSAE120 (APG 8-10): 1.8%, preservative: 0.1%. This microgel reduced total concentration of anion and non-ionic surfactants from 10 to 5.8% without affecting detergency.

EXAMPLE 5. NEUTRAL LIQUID FOR GLASS AND MIRROR CLEANING (NEUTRAL PH)

(5) Pectin-based microgel: 0.3% on dry weight basis, elotant CSAE120 (APG 8-10): 3.5%, preservative: 0.1%. This microgel reduced the total concentration of anion and non-ionic surfactants from 10 to 3.5% without affecting detergency.

EXAMPLE 6. CARPETS AND UPHOLSTERY CLEANER (NEUTRAL PH)

(6) Carboxymethylated starch-based microgel: 1.5% on dry weight basis, sodium laureth sulfate (coconut oil based): 4.2%, coconut diethanolamide (coconut oil based): 2.1%, methoxypropanol: 5%, hydrotropic agent: 4%, preservative: 0.1%. This microgel reduced the total concentration of anion and non-ionic surfactants from 10 to 6.3% without affecting detergency.

EXAMPLE 7. PROFESSIONAL CLEANER FOR CERAMIC TILES (WEAKLY ACIDIC PH)

(7) CMC-based microgel: 1% on dry weight basis; acetic acid: 12%; elotant CSAE (APG 8-10): 3.8%; coconut diethanolamide (coconut oil based): 1.0%, preservative: 0.1% This microgel reduced the total concentration of anion and non-ionic surfactants from 10 to 4.8% without affecting detergency.

EXAMPLE 8. ALKALINE CLEANER FOR KITCHEN STOVES (STRONGLY ALKALINE PH)

(8) Chitosan-based microgel: 2% on dry weight basis, caustic soda: 15%, elotant Milcoside100 (APG 8-10): 2.0%, chelating agent: 0.2%. This microgel reduced the total concentration of anion and non-ionic surfactants from 5 to 2% without affecting detergency.

EXAMPLE 9. SANITARY WARE CLEANER (STRONGLY ACIDIC PH)

(9) CMC-based microgel: 1% on dry weight basis; sulfamic acid: 10%, oxalic acid: 10%, ethoxyethylated spirit ethoxylated alcohols: 1.5%; preservative: 0.1%. This microgel reduced the total concentration of anion and non-ionic surfactants from 5 to 1.5% without affecting detergency.

EXAMPLE 10. PROFESSIONAL ACIDIC CLEANER (STRONGLY ACIDIC PH)

(10) CMC-based microgel: 5% on dry weight basis, orthophosphoric acid: 10%, oxalic acid: 15%, etoxyethylated spirit ethoxylated alcohols: 0.5%, preservative: 0.1%. This microgel reduced the total concentration of anion and non-ionic surfactants from 2 to 0.5% without affecting detergency.

(11) The proposed cluster of inventions is explained, using the following examples of detergents containing polysaccharide microgels modified with hydrophobic aggregates.

EXAMPLE 11. DISH AND CUTLERY WASHING LIQUID, COMPOSITION 1 (NEUTRAL PH)

(12) Carboxymethyl cellulose (CMC) based microgel, modified with aliphatic substitutes C8; substitution 15.0%, concentration 1.0% on dry weight basis; sodium laureth sulfate (coconut oil based); 3.8%; coconut diethanolamide (coconut oil based): 1.7%; hydrotropic agent: 4.0%, preservative: 0.1%.

(13) This microgel reduced the total concentration of anion and non-ionic surfactants from 10 to 5.5% and eliminated table salt from the composition, while not affecting detergency.

EXAMPLE 12. DISH AND CUTLERY WASHING LIQUID, COMPOSITION 2 (NEUTRAL PH)

(14) Pectin-based microgel, modified with aliphatic substitutes based on coconut oil C8-C16, substitution 25.0%, concentration 0.5% on dry weight basis; sodium laureth sulfate (coconut oil based): 5.1%, coconut diethanolamide (coconut oil based): 2.0%, hydrotropic agent: 4.0%, preservative: 0.1%.

(15) Addition of this microgel reduced total concentration of anion and non-ionic surface-active agents from 10 to 7.1% and eliminated table salt from the composition, while not affecting detergency.

EXAMPLE 13. HYPOALLERGENIC LIQUID SOAP (NEUTRAL PH)

(16) Microgel based on starch modified with aliphatic substitutes, based on coconut oil C8-C18, substitution 50.0%, concentration 2.0% on dry weight basis, sodium alkylbenzosulphate: 1.2%, coconut diethanolamide (based on coconut oil): 1.8%, glycerine: 2.0%, hydrotropic substance: 4.0%, preservative: 0.1%. Addition of this microgel reduced the total concentration of anion and non-ionic surfactants from 10 to 3.0%, while not affecting detergency.

EXAMPLE 14. PROFESSIONAL CLEANER FOR CERAMIC TILES (WEAKLY ACID PH)

(17) CMC-based microgel, modified with aliphatic substitutes C8, substitution 20.0%, concentration 0.3% on dry weight basis, acetic acid: 12.0%, elotant CSAE120 (APG 8-10): 4.2%, diethanolamide coconut diethanolamide (coconut oil based): 1.1%, preservative: 0.1%.

(18) Addition of this microgel reduced total concentration of anion and non-ionic surfactants from 10 to 5.3% and eliminated table salt from the composition, while not affecting detergency.

EXAMPLE 15. ALKALINE CLEANER FOR CLEANING KITCHEN STOVES, COMPOSITION 1 (HIGHLY ALKALINE PH)

(19) Chitasan-based microgel, modified with aliphatic substitutes C12, substitution 10.0%, concentration 0.1% on dry weight basis, caustic soda: 15.0%, elotant Milcoside (APG 8-10): 1.0%, chelating agent: 0.2%. Addition of this microgel reduced the total concentration of anion and non-ionic surfactants from 5.0 to 1.0% and eliminate thickening from the composition, while not affecting detergency.

EXAMPLE 16. ALKALINE DETERGENT FOR CLEANING KITCHEN HOBS, COMPOSITION 2 (VERY ALKALINE PH)

(20) Pectin-based microgel, modified with aliphatic substitutes C8, substitution 15.0%, concentration 0.8% calculated for dry weight; caustic soda: 15.0%; elotant Milcoside100 (APG 8-10): 1.2%, chelating agent: 0.2%. Addition of this microgel reduced total concentration of anion and non-ionic surfactants from 5.0 to 1.2% and eliminated thickener from the composition, while not affecting detergency.

EXAMPLE 17. SANITARY WARE CLEANER, COMPOSITION 1 (HIGHLY ACID PH)

(21) CMC-based microgel, modified with branched aliphatic substitutes based on oil processing products C8-C16, substitution 30.0%, concentration 2.0% on dry weight basis, sulfamic acid: 10.0%, preservative: 0.1%. Addition of this microgel eliminates all anion and non-ionic surfactants and thickeners, while not affecting detergency.

EXAMPLE 18. SANITARY WARE CLEANING GEL, COMPOSITION 2 (STRONGLY ACID PH)

(22) Chitosan-based microgel, modified with aryl substitutes Ph, substitution 20.0%, concentration: 1.5% on dry weight basis; sulfamic acid: 10.0%, oxalic acid: 10.0%, preservative: 0.1%. Addition of this microgel eliminates all anion and non-ionic surfactants and thickeners, while not affecting detergency.

(23) TABLE-US-00001 TABLE 1 Detergents, containing polysaccharide microgels, nonmodified by hydryphobic aggregates Concentration of Concentration of Concentration of polysaccharide surfactants, no surfactants, Acid/alkali No. Polysaccharide microgels microgels used microgels used concentration Use 1 CMC 1% 10% 6.3% neutral Dish wash 2 Ammonium pectate 0.5%   10% 6.5% neutral Cleaning 3 Carboxymethylated starch 3% 10% 6.5% neutral Hand wash 4 Chitosan 0.1%   10% 5.8% neutral Floor cleaner 5 Pectin 0.3%   10% 3.5% neutral Glass cleaner 6 Carboxylmethylated starch 1.5%   10% 6.3% neutral Carpet cleaner 7 CMC 1% 10% 4.8% weakly acid Ceramic tiles cleaner 8 Chitosan 2%  5% 2.0% strongly alkaline Kitchen cleaner 9 CMC 1%  5% 1.5% strongly acidic Sanitary ware cleaner 10 CMC 5%  2% 0.5% strongly acidic Sanitary ware cleaner

(24) TABLE-US-00002 TABLE 2 Detergents containing polysaccharide microgels modified with hydrophobic aggregates Surfactant Surfactant concentration, concentration, Hydrophobic Macrogel no microgels microgels Alkali/acid No. Polysacharide aggregates Substitution concentration used used concentration Commentary 11 CMC C8 15.0 1.0 10.0 5.5 neutral Dish wash 12 Pectin C8-C16 25.0 0.5 10.0 7.1 neutral Dish wash 13 Starch C8-C16 50.0 2.0 10.0 3.0 neutral Hand wash 14 CMC C8 20.0 0.3 10.0 5.3 weakly acid Ceramic tiles cleaner 15 Chitosan C12 10.0 0.1 10.0 1.0 alkaline Kitchen cleaner 16 Pectin C8 15.0 0.8 5.0 1.2 alkaline Kitchen cleaner 17 CMC Branched 30.0 2.0 3.0 0 strongly Sanitary ware C8-C16 acidic cleaner 18 Chitosan Ph 20.0 1.5 3.0 0 strongly Sanitary ware acidic cleaner