# US 12,006,489 B2 · Amphiphilic polysaccharide derivatives and compositions comprising same

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- Number: US 12,006,489 B2
- Document ID: US12006489B2
- Status: Granted
- Kind: B2
- Application number: 17/376,806
- Filed: 2021-07-15
- Published: 2022-02-10
- Granted: 2024-06-11
- Earliest claimed: 2016-12-16
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Zhengzheng Huang; Helen Lu; Weiming Qiu; Mukesh C. Shah; Steven W. Shuey; Mark Robert Sivik; Kristi Lynn Fliter
- Web page: https://patentgrep.com/patent/US12006489B2

## CPC

- C11D 3/228: {with phosphorus- or sulfur-containing groups}
- B08B 3/10: with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- C08B 37/0009: {alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof}
- C11D 3/0036: {Soil deposition preventing compositions; Antiredeposition agents}
- C11D 3/225: {etherified, e.g. CMC}
- C11D 3/226: {esterified}
- C11D 3/227: {with nitrogen-containing groups}
- C11D 3/38618: {Protease or amylase in liquid compositions only}
- C11D 3/38627: {containing lipase}
- C11D 3/38645: {containing cellulase}
- C11D 7/268: {Carbohydrates or derivatives thereof}
- C11D 17/042: {Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions}
- C11D 17/045: {Multi-compartment}
- C11D 3/222: {Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin}
- C11D 2111/12: Soft surfaces, e.g. textile
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- C08B: POLYSACCHARIDES; DERIVATIVES THEREOF (polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages C07H; fermentation or enzyme-using processes C12P19/00; sugar industry C13; production of cellulose D21)

## Abstract

The disclosure relates to compositions comprising a polysaccharide derivative, wherein the polysaccharide derivative comprises a polysaccharide substituted with a) at least one hydrophobic group, and b) at least one hydrophilic group, wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, or poly alpha-1,3-1,6-glucan.

## Claims

### Claim 1

A product comprising:
from about 1% to about 60% by weight of a surfactant; and from about 0.1% to about 10% by weight of a polysaccharide derivative, wherein the polysaccharide derivative comprises a polysaccharide substituted with a) at least one hydrophilic group comprising a carboxylic acid, a carboxylic acid salt, a sulfonic acid derivative, a sulfonic acid derivative salt, a sulfuric acid derivative, a sulfuric acid derivative salt, a thiosulfate, a thiosulfate salts, a phosphoric acid derivative, a phosphoric acid derivative salt, an alkyl amine, an alkyl substituted ammonium salt, a quaternized pyridine salt, a quaternized imidazole salt, or a combination thereof; and b) at least one hydrophobic group; wherein the polysaccharide is a poly alpha-1,6-glucan or poly alpha-1,3-1,6-glucan; wherein said product is a household product.

### Claim 2 (depends on 1)

The product of claim 1 in the form of a liquid, a gel, a powder, a hydrocolloid, an aqueous solution, a granule, a tablet, a capsule, a single compartment sachet, a multi-compartment sachet, a single compartment pouch, or a multi-compartment pouch.

### Claim 3 (depends on 1)

The product of claim 1, further comprising at least one of an enzyme, a detergent builder, a complexing agent, a polymer, a soil release polymer, a surfactancy-boosting polymer, a bleaching agent, a bleach activator, a bleaching catalyst, a fabric conditioner, a clay, a foam booster, a suds suppressor, an anti-corrosion agent, a soil-suspending agent, an anti-soil re-deposition agent, a dye, a bactericide, a tarnish inhibitor, an optical brightener, a perfume, a saturated or unsaturated fatty acid, a dye transfer inhibiting agent, a chelating agent, a hueing dye, a calcium cation, a magnesium cation, a visual signaling ingredient, an anti-foam, a structurant, a thickener, an anti-caking agent, a starch, sand, a gelling agent, or a combination thereof.

### Claim 4 (depends on 3)

The product of claim 3, wherein the enzyme is a cellulase, a protease, an amylase, a lipase, or a combination thereof.

### Claim 5 (depends on 1)

The product of claim 1, wherein the polysaccharide derivative at 2 wt % has a surface tension of less than 65 mN/m.

### Claim 6 (depends on 1)

A water-soluble unit dose article comprising a water-soluble film and a composition from claim 1.

### Claim 7 (depends on 6)

The water soluble unit does article according to claim 6 comprising at least two compartments.

### Claim 8 (depends on 6)

The water soluble unit does article according to claim 6 comprising at least three compartments.

### Claim 9 (depends on 7)

The water soluble unit does article according to claim 7 where the compartments are arranged in a superposed orientation or in a side-by-side orientation.

### Claim 10 (depends on 1)

A method of treating a substrate, where the method includes the step of contacting the substrate with the household product of claim 1 in the presence of water, wherein the substrate is a fabric or a hard surface.

### Claim 11 (depends on 1)

A method of treating a fabric with the product of claim 1 comprising applying the product to the fabric, wherein the treated fabric has a change in WICIE of +1.5 or more units versus the fabric before treatment, as determined according to the L*a*b* WICIE method.

### Claim 12

A product comprising:
from about 1% to about 60% by weight of a non-petroleum derived surfactant; from about 0.1% to about 10% by weight of a polysaccharide derivative, wherein the polysaccharide derivative comprises a polysaccharide substituted with
c) at least one hydrophobic group; and
d) at least one hydrophilic group;
wherein the polysaccharide is poly alpha-1,6-glucan or poly alpha-1,3-1,6-glucan;
wherein said product is a household product.

### Claim 13 (depends on 12)

The product of claim 12, wherein the product is free of dye and brightener.

### Claim 14 (depends on 1)

The product of claim 1, wherein the at least one hydrophilic group comprises a sulfonic acid derivative, a sulfonic acid derivative salt, a sulfuric acid derivative, a sulfuric acid derivative salt, a thiosulfate, a thiosulfate salts, a phosphoric acid derivative, a phosphoric acid derivative salt, an alkyl amine, an alkyl substituted ammonium salt, a quaternized pyridine salt, a quaternized imidazole salt, or a combination thereof.

### Claim 15 (depends on 12)

The product of claim 12, wherein the at least one hydrophilic group comprises a carboxylic acid, a carboxylic acid salt, a sulfonic acid derivative, a sulfonic acid derivative salt, a sulfuric acid derivative, a sulfuric acid derivative salt, a thiosulfate, a thiosulfate salts, a phosphoric acid derivative, a phosphoric acid derivative salt, an alkyl amine, an alkyl substituted ammonium salt, a quaternized pyridine salt, a quaternized imidazole salt, or a combination thereof.