Stable Compositions Comprising Cationic Cellulose Polymers and Cellulase

• US 20110319310A1
• Filed: 06/14/2011
• Published: 12/29/2011
• Est. Priority Date: 06/24/2010
• Status: Abandoned Application

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: LABEQUE, Regine
• Application Number:
  US13/159,448
• Publication Number:
  US 20110319310A1
• Time in Patent Office: Days
• US Class Current: 510/296
• CPC Class Codes: C11D 17/0004 Non aqueous liquid compositions comprising insoluble particles
• CPC Class Codes: C11D 3/227 with nitrogen-containing groups
• CPC Class Codes: C11D 3/38645 containing cellulase

Abstract

The need for a stable, compact composition providing improved fabric care benefit, that is also convenient to use, can be met by incorporating a cationic cellulose polymer and cellulase enzyme into a non-aqueous composition. The non-aqueous composition can be made even more convenient to use, by encapsulating in a water-soluble or dispersible film to form a unit-dose article. Such unit dose articles provide improved fabric feel in addition to improved colour maintenance.

Claims

1. A non-aqueous liquid composition comprising:

a) a cationic cellulose polymer; and

b) a cellulase enzyme;

wherein the non-aqueous liquid composition comprises less than about 20% by weight water.

2. The non-aqueous liquid composition according to claim 1, wherein the composition comprises less than about 15% by weight of water.

3. The non-aqueous liquid composition according to claim 1, wherein the composition comprises less than about 12% by weight of water.

4. The non-aqueous liquid composition according to claim 1, wherein the composition comprises less than about 8% by weight of water.

5. The non-aqueous liquid composition according to claim 1, wherein the cationic cellulose polymer is a cationic polysaccharide.

6. The non-aqueous liquid composition according to claim 5, wherein the cationic cellulose polymer has the structural formula I:

7. The non-aqueous liquid composition according to claim 1, comprising from about 0.01% to about 20% of the cationic cellulose polymer.

8. The non-aqueous liquid composition according to claim 1, comprising from about 0.1% to about 15% by weight of the cationic cellulose polymer.

9. The non-aqueous liquid composition according to claim 1, comprising from about 0.6% to about 10% by weight of the cationic cellulose polymer.

10. The non-aqueous liquid composition according to claim 1, comprising from about 0.000005% to about 0.2% by weight of the cellulase enzyme.

11. The non-aqueous liquid composition according to claim 1, comprising from about 0.00001 to about 0.05% by weight of the cellulase enzyme.

12. The non-aqueous liquid composition according to claim 1, comprising from about 0.0001% to about 0.02% by weight of the cellulase enzyme.

13. The non-aqueous liquid laundry detergent composition according to claim 1, further comprising a cellulase inhibitor, present in a level of from about 0.0001% to about 3% by weight of the non-aqueous composition.

14. The non-aqueous liquid composition according to claim 1, wherein the cationic cellulose polymer is present in a particulate form.

15. The non-aqueous liquid composition according to claim 1, wherein the composition is enclosed in a water-soluble or dispersible film.

16. The non-aqueous liquid composition according to claim 15, wherein the water-soluble or dispersible film comprises resin selected from the group consisting of:

polyvinyl alcohols, polyvinyl alcohol copolymers, hydroxypropyl methyl cellulose (HPMC), and mixtures thereof.

17. A process for reblending a non-aqueous liquid composition of claim 1 with a second non-aqueous composition, characterized in that the second non-aqueous composition comprises a cellulose-based polymer.

18. A non-aqueous liquid composition enclosed in a water-soluble or dispersible film the composition comprising:

a) a cationic cellulose polymer; and

b) a cellulase enzyme;

wherein the non-aqueous liquid composition comprises less than about 20% by weight water and the cationic cellulose polymer has the structural formula I;