Laundry care or dish care composition comprising a poly alpha-1,6-glucan derivative

Patent metadata

Field	Value
Publication number	US-11732216-B2
Application number	US-202117342577-A
Country	US
Kind code	B2
Filing date	Jun 9, 2021
Priority date	Jun 10, 2020
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A laundry care or dish care composition can include a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative includes:(i) a poly alpha-1,6-glucan backbone of glucose monomer units, wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages; and(ii) at least one hydrophobic organic group linked to the poly alpha-1,6-glucan backbone through an ether (—O—) linkage moiety;wherein, the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least 5;wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of ether linkage moiety of from 0.20 to 1.00;wherein the poly alpha-1,6-glucan derivative is substantially free from hydrophilic substitution.

First claim

What is claimed is:

1. A laundry care or dish care composition comprising a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative comprises:
(i) a poly alpha-1,6-glucan backbone of glucose monomer units, wherein about 40% or more of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and optionally at least about 5% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages;
(ii) at least about one hydrophobic organic group linked to the poly alpha-1,6-glucan backbone through an ether (—O—) linkage moiety; and
(iii) one or more additional hydrophobic organic groups linked to the poly alpha-1,6-glucan backbone through linkage moiety selected from one or more of ester (—OCO—), carbamate

sulfonate ester (—OSO 2 —), and carbonate ester (—OCOO—);
wherein, the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least about 5;
wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of ether linkage moiety of from about 0.20 to about 1.00; and
wherein the poly alpha-1,6-glucan derivative is free from hydrophilic substitution.

2. The composition according to claim 1 , wherein no hydrophilic organic groups are linked to the poly alpha-1,6-glucan backbone through the ether (—O—) linkage moiety.

3. The composition according to claim 1 , wherein the alpha-1,6-glucan backbone of the poly alpha-1,6-glucan derivative has a weight average degree of polymerization of either about 5 to about 95, or about 125 to about 4000.

4. The composition according to claim 1 , wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of ether linkage moiety of about 0.40 to about 0.90.

5. The composition according to claim 1 , wherein about 5% to about 9% or about 26% to about 40% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages.

6. The composition according to claim 1 , wherein the hydrophobic organic group is a benzyl group, wherein the benzyl group may be substituted with one or more of: a halogen; a cyano group; an ester group; an amide group; an ether group; a C 1 to C 6 alkyl group; an aryl group; a C 2 to C 6 alkene group; a C 2 to C 6 alkyne group; or any combination thereof.

7. The composition according to claim 1 , wherein the composition is 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 pad, a multi-compartment sachet, a single compartment pouch, or a multi-compartment pouch.

8. The composition according to claim 1 , wherein the composition further comprising an ingredient selected from: surfactant, 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 any combination thereof.

9. The composition according to claim 1 , wherein the composition comprises an enzyme selected from: a cellulase, a protease, an amylase, a lipase, or any combination thereof.

10. The composition according to claim 1 , wherein the poly alpha-1,6-glucan derivative is randomly substituted with the hydrophobic organic groups.

11. The composition according to claim 1 , wherein the glucose monomers of the poly alpha-1,6-glucan backbone are disproportionately substituted relative to the glucose monomers of any branches.

Assignees

• Procter & Gamble

Inventors

• Sivik Mark Robert
• Fliter Kristine Lynn
• Fairweather Neil Thomas
• Si Gang
• Good David
• Lu Helen
• Qiu Weiming

Classifications

• C11D3/225 Primary

  etherified, e.g. CMC · CPC title

• C11D2111/14

  Hard surfaces · CPC title

• C11D2111/12

  Soft surfaces, e.g. textile · CPC title

• C11D2111/16

  Metals · CPC title

• C11D2111/18

  Glass; Plastics · CPC title