Softening laundry detergent

• US 20060030513A1
• Filed: 08/03/2004
• Published: 02/09/2006
• Est. Priority Date: 08/03/2004
• Status: Abandoned Application

• Current Assignee: Unilever Home & Personal Care Usa Division Of Conopco, Inc.
• Original Assignee: Unilever Home & Personal Care Usa Division Of Conopco, Inc.
• Inventors: Binder, David Alan, Murphy, Dennis Stephen, Orchowski, Michael
• Application Number:
  US10/910,737
• Publication Number:
  US 20060030513A1
• Time in Patent Office: Days
• US Class Current: 510/515
• CPC Class Codes: C11D 3/162 containing Si
• CPC Class Codes: C11D 3/18 Hydrocarbons C11D3/164 takes precedence
• CPC Class Codes: C11D 3/2068 Ethers
• CPC Class Codes: C11D 3/2093 Esters; Carbonates
• CPC Class Codes: C11D 3/221 Mono, di- or trisaccharides or derivatives thereof
• CPC Class Codes: C11D 3/227 with nitrogen-containing groups
• CPC Class Codes: C11D 3/373 containing silicones
• CPC Class Codes: C11D 3/3742 Nitrogen containing silicones
• CPC Class Codes: C11D 3/3769 (Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
• CPC Class Codes: C11D 3/3773 in liquid compositions
• CPC Class Codes: C11D 3/3776 Heterocyclic compounds, e.g. lactam

Abstract

The present invention is directed to laundry compositions which deliver both effective softening and effective cleaning, containing: (a) a cationic polymer having a weight average molecular weight of less than about 850,000 daltons; (b) about 1% to about 60% of a nonionic oil; and (c) at least about 5% of anionic surfactant, wherein the ratio of said cationic polymer to said nonionic oil is less than about 0.25; wherein the ratio of cationic monomeric surfactant to said nonionic oil is less than about 0.2; and having a Softening Parameter of greater than about 70. A method of conditioning articles using the inventive compositions is also disclosed.

Claims

1. A laundry composition comprising:

(a) a cationic polymer having a weight average molecular weight of less than about 850,000 daltons;

(b) about 1% to about 60% of a nonionic oil; and

(c) at least about 5% of a surfactant selected from the group consisting of anionic surfactant, cationic monomeric surfactant, nonionic surfactant, zwiterionic surfactant, and combinations thereof;

wherein the ratio of said cationic polymer to said nonionic oil is less than about 0.25;

wherein the ratio of said cationic monomeric surfactant to said nonionic oil is less than about 0.2; and

having a Softening Parameter of greater than about 70.

2. The composition according to claim 1, wherein said nonionic oil has an HLB of less than about 15.

3. The composition according to claim 1, wherein said nonionic oil has an HLB of less than about 8.

4. The composition according to claim 1, wherein the level of cationic monomeric surfactant is less than about 3%.

5. The composition according to claim 1, wherein the level of cationic polymer is less than about 3%.

6. The composition according to claim 1, wherein the ratio of said anionic surfactant to said nonionic oil is greater than about 1.

7. The composition according to claim 1, wherein the composition is a liquid with a pH of greater than about 5.

8. The composition according to claim 1, wherein a 1% aqueous solution of said composition has a pH of greater than about 5.

9. The composition according to claim 1, wherein at least one cationic polymer is selected from the group consisting of dimethyl diallyl ammonium chloride/acrylamide copolymers, dimethyl diallyl ammonium chloride/acrylic acid/acrylamide terpolymers, vinylpyrrolidone/methyl vinyl imidazolium chloride copolymers, polydimethyl diallyl ammonium chloride, starch hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethyl ammonium chloride, acrylamidopropyl trimmonium chloride/acrylamide copolymers, guar hydroxypropyl trimonium chloride, cationically-modified siloxane polymers and hydroxyethyl cellulose derivatized with trimethyl ammonium substituted epoxide.

10. The composition according to claim 1, wherein said nonionic oil is selected from the group consisting of:

polydimethylsiloxane, amino functional silicones, triglyceride oils, silicone polyethers, cyclic polyol esters, cyclic polyol ethers, reduced saccharide esters, reduced saccharide ethers, mineral oils and mixtures thereof.

11. The composition according to claim 1, having a form selected from the group consisting of liquid laundry detergent, powdered laundry detergent, liquid rinse conditioner, powdered rinse conditioner, tablet laundry detergents, laundry booster, laundry sachet and water-soluble sheet.

12. A method for conditioning textiles comprising, in no particular order, the steps of:

a) providing a laundry composition according to claim 1, in an effective amount to soften and condition fabric articles under predetermined laundering conditions

b) contacting one or more articles with said composition at one or more points during a laundering process

c) allowing the article or articles to dry or mechanically tumble-drying them.

13. The method according to claim 12, wherein the ratio of cationic monomeric surfactant to nonionic oil in said laundry composition is less than about 0.2.

14. The method according to claim 12, wherein at least one nonionic oil in said laundry composition has an HLB of less than about 8.

15. The method according to claim 12, wherein the ratio of said anionic surfactant to said nonionic oil in said laundry composition is greater than about 1.

16. The method according to claim 12, wherein at least one cationic polymer in said laundry composition is selected from the group consisting of dimethyl diallyl ammonium chloride/acrylamide copolymers, dimethyl diallyl ammonium chloride/acrylic acid/acrylamide terpolymers, vinylpyrrolidone/methyl vinyl imidazolium chloride copolymers, polydimethyl diallyl ammonium chloride, starch hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethyl ammonium chloride, acrylamidopropyl trimmonium chloride/acrylamide copolymers, guar hydroxypropyl trimonium chloride, cationically-modified siloxane polymers and hydroxyethyl cellulose derivatized with trimethyl ammonium substituted epoxide.

17. The method according to claim 12, wherein at least one nonionic oil in said laundry composition is selected from the group consisting of:

polydimethylsiloxane, amino functional silicones, triglyceride oils, silicone polyethers, cyclic polyol esters, cyclic polyol ethers, reduced saccharide esters, reduced saccharide ethers and mineral oils.

18. The method according to claim 12, one or more of the selected cationic polymers in said laundry composition has a molecular weight of less than about 850,000 daltons.

19. The method according to claim 12, wherein said composition is an isotropic detergent-softener composition.