Glucan fiber compositions for use in laundry care and fabric care

Patent metadata

Field	Value
Publication number	US-10876074-B2
Application number	US-201615765538-A
Country	US
Kind code	B2
Filing date	Nov 7, 2016
Priority date	Nov 13, 2015
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

An enzymatically produced α-glucan oligomer/polymer compositions is provided. The enzymatically produced α-glucan oligomer/polymers can be derivatized into α-glucan ether compounds. The α-glucan oligomers/polymers and the corresponding α-glucan ethers are cellulose and/or protease resistant, making them suitable for use in fabric care and laundry care applications. Methods for the production and use of the present compositions are also provided.

First claim

What is claimed is:

1. A fabric care composition or laundry care composition comprising:
(a) an α-glucan oligomer/polymer composition comprising:
(i) at least 75% α-(1,3) glycosidic linkages;
(ii) less than 25% α-(1,6) glycosidic linkages;
(iii) less than 10% α-(1,3,6) glycosidic linkages;
(iv) a weight average molecular weight of less than 5000 Daltons;
(v) a viscosity of less than 0.25 Pascal second at 12 wt % in water at 20° C.;
(vi) a solubility of at least 20% (w/w) in water at 25° C.; and
(vii) a polydispersity index of less than 5; and

(b) at least one additional fabric care or laundry care ingredient, wherein the additional ingredient is at least one cellulase.

2. A fabric care composition or laundry care composition comprising:
(a) an α-glucan oligomer/polymer composition comprising:
(i) at least 75% α-(1,3) glycosidic linkages;
(ii) less than 25% α-(1,6) glycosidic linkages;
(iii) less than 10% α-(1,3,6) glycosidic linkages;
(iv) a weight average molecular weight of less than 5000 Daltons;
(v) a viscosity of less than 0.25 Pascal second at 12 wt % in water at 20° C.;
(vi) a solubility of at least 20% (w/w) in water at 25° C.; and
(vii) a polydispersity index of less than 5; and

(b) at least one additional fabric care or laundry care ingredient, wherein the additional ingredient is at least one protease.

3. The fabric care composition or laundry care composition of claim 1 , wherein the α-glucan oligomer/polymer composition comprises less than 5% α-(1,4) glycosidic linkages.

4. The fabric care composition or laundry care composition of claim 1 , wherein the fabric care composition or laundry care composition comprises 0.01 to 90% wt % of the α-glucan oligomer/polymer composition.

5. The fabric care composition or laundry care composition of claim 1 , wherein the at least one additional fabric care or laundry care ingredient further comprises at least one of surfactants selected from anionic surfactants, nonionic surfactants, cationic surfactants, or zwitterionic surfactants, enzymes selected from proteases, polyesterases, amylases, cutinases, lipases, pectate lyases, perhydrolases, xylanases, peroxidases, and/or laccases, detergent builders, complexing agents, polymers, soil release polymers, surfactancy-boosting polymers, bleaching systems, bleach activators, bleaching catalysts, fabric conditioners, clays, foam boosters, suds suppressors, anti-corrosion agents, soil-suspending agents, anti-soil redeposition agents, dyes, bactericides, tarnish inhibiters, optical brighteners, perfumes, saturated or unsaturated fatty acids, dye transfer inhibiting agents, chelating agents, hueing dyes, calcium and magnesium cations, visual signaling ingredients, anti-foam, structurants, thickeners, anti-caking agents, starch, sand, gelling agents, or any combination thereof.

6. The fabric care composition or laundry care composition of claim 1 , wherein the fabric care composition or laundry care composition is in the form of a liquid, a gel, a powder, a hydrocolloid, an aqueous solution, granules, tablets, capsules, single compartment sachets, multi-compartment sachets, or any combination thereof.

7. The fabric care composition or laundry care composition of claim 1 , wherein the α-glucan oligomer/polymer composition is cellulase-resistant, protease-resistant, amylase-resistant, or a combination thereof.

8. The fabric care composition or laundry care composition of claim 2 , wherein the α-glucan oligomer/polymer composition comprises less than 5% α-(1,4) glycosidic linkages.

9. The fabric care composition or laundry care composition of claim 2 , wherein the fabric care composition or laundry care composition comprises 0.01 to 90% wt % of the α-glucan oligomer/polymer composition.

10. The fabric care composition or laundry care composition of claim 2 , wherein the at least one additional fabric care or laundry care ingredient further comprises at least one of surfactants selected from anionic surfactants, nonionic surfactants, cationic surfactants, or zwitterionic surfactants, enzymes selected from cellulases, polyesterases, amylases, cutinases, lipases, pectate lyases, perhydrolases, xylanases, peroxidases, and/or laccases, detergent builders, complexing agents, polymers, soil release polymers, surfactancy-boosting polymers, bleaching systems, bleach activators, bleaching catalysts, fabric conditioners, clays, foam boosters, suds suppressors, anti-corrosion agents, soil-suspending agents, anti-soil redeposition agents, dyes, bactericides, tarnish inhibiters, optical brighteners, perfumes, saturated or unsaturated fatty acids, dye transfer inhibiting agents, chelating agents, hueing dyes, calcium and magnesium cations, visual signaling ingredients, anti-foam, structurants, thickeners, anti-caking agents, starch, sand, gelling agents, or any combination thereof.

11. The fabric care composition or laundry care composition of claim 2 , wherein the fabric care composition or laundry care composition is in the form of a liquid, a gel, a powder, a hydrocolloid, an aqueous solution, granules, tablets, capsules, single compartment sachets, multi-compartment sachets, or any combination thereof.

12. The fabric care composition or laundry care composition of claim 2 , wherein the α-glucan oligomer/polymer composition is cellulase-resistant, protease-resistant, amylase-resistant, or a combination thereof.

Assignees

• Dupont Ind Biosciences Usa Llc

Inventors

• Dicosimo Robert
• Cheng Qiong
• Nambiar Rakesh
• Paullin Jayme L
• Payne Mark S
• Prasad Jahnavi Chandra
• You Zheng

Classifications

• C11D3/222 Primary

  Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin · CPC title

• C11D3/001

  Softening compositions · CPC title