Detergent composition compromising a cationic polymer containing a vinyl formamide nonionic structural unit

• US 9,951,297 B2
• Filed: 08/25/2015
• Issued: 04/24/2018
• Est. Priority Date: 08/27/2014
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Panandiker, Rajan Keshav, Sivik, Mark Robert, Fossum, Renae Dianna, Birkel, Susanne, Vetter, Nicholas David, Doria, Heather Anne, Barrera, Carola, Aguilera-Mercado, Bernardo, Flores-Figueroa, Aaron
• Primary Examiner(s): BOYER, CHARLES I
• Application Number:
  US14/834,463
• Publication Number:
  US 20160060572A1
• Time in Patent Office: 973 Days
• CPC Class Codes: C11D 1/83 Mixtures of non-ionic with anionic compounds
• CPC Class Codes: C11D 3/001 Softening compositions
• CPC Class Codes: C11D 3/0015 liquid
• 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

Fabric care compositions comprising a cationic polymer, a silicone, and a surfactant system. Methods of making and using such compositions.

Claims

1. A laundry detergent composition comprising a non-polysaccharide cationic polymer, a silicone, and a surfactant system,

wherein said cationic polymer is characterized by having a calculated cationic charge density of from about 4 meq/g to about 12 meq/g,

wherein said cationic polymer is further characterized by a molecular weight of from about 15 to about 200 kDaltons,

wherein said cationic polymer comprises from about 50 mol % to about 85 mol % of a cationic structural unit, wherein said cationic structural unit is derived from a cationic monomer selected from diallyl dimethyl ammonium salts (DADMAS);

wherein said cationic polymer further comprises at least about 15 mol % of a nonionic structural unit, wherein said nonionic structural unit is derived from a vinyl formamide monomer; and

wherein said surfactant system is present at a level of from about 1% to about 70%, by weight of the composition, and wherein said surfactant system comprises anionic surfactant and nonionic surfactant in a ratio of from about 1.1;

1 to about 2.5, wherein said anionic surfactant comprises linear alkyl benzene sulfate (LAS) and alkyl ether sulfate (AES).

2. A detergent composition according to claim 1, wherein said cationic polymer comprises from about 15 mol % to about 30 mol % of said nonionic structural unit.

3. A detergent composition according to claim 1, wherein said cationic polymer comprises from about 70 mol % to about 85 mol % of said cationic structural unit.

4. A detergent composition according to claim 1, wherein said cationic polymer is characterized by having a cationic charge density of from about 4.5 to about 7 meq/g.

5. A detergent composition according to claim 1, wherein said cationic polymer is characterized by a molecular weight of from about 15 to about 100 kDaltons.

6. A detergent composition according to claim 1, wherein said cationic polymer is characterized by a molecular weight of from about 20 to about 50 kDaltons.

7. A detergent composition according to claim 1, wherein said cationic polymer is substantially free of any silicone-derived structural unit.

8. A detergent composition according to claim 1, wherein said silicone is an aminosilicone.

9. A detergent composition according to claim 1, wherein said silicone is present as a nanoemulsion, wherein said nanoemulsion is characterized by a mean particle size of from about 10 nm to about 500 nm.

10. A detergent composition according to claim 1, wherein said ratio of anionic surfactant to nonionic surfactant is about 2:

1.

11. A detergent composition according to claim 1, wherein said LAS and said AES are present in a ratio of from about 0.5:

1 to about 1.5;

1.

12. A detergent composition according to claim 1, wherein said detergent composition further comprises from about 0.1% to about 4%, by weight of the composition, of fatty acid and/or a salt thereof.

13. A detergent composition according to claim 1, wherein said detergent composition further comprises an external structuring system comprising non-polymeric crystalline hydroxy-functional structurants, polymeric structurants, or mixtures thereof.

14. A detergent composition according to claim 1, wherein said detergent composition further comprises an adjunct selected from microencapsulates, enzymes, a soil release polymer, hueing dye, and combinations thereof.

15. A detergent composition according to claim 14, wherein said microencapsulates are perfume microcapsules.

16. A detergent composition according to claim 1, wherein said composition is a liquid.

17. A detergent composition according to claim 1, wherein said detergent composition is encapsulated in a pouch, wherein said pouch comprises water-soluble film.

18. A method of treating a fabric, comprising the step of contacting said fabric with said detergent composition of claim 1.

19. A detergent composition according to claim 1, wherein said diallyl dimethyl ammonium salts (DADMAS) comprise chloride (DADMAC).

20. A detergent composition according to claim 1, wherein said cationic polymer is characterized by a molecular weight of from about 47 to about 111 kDaltons.