Detergent composition compromising a cationic polymer containing a vinyl formamide nonionic structural unit
Fabric care compositions comprising a cationic polymer, a silicone, and a surfactant system. Methods of making and using such compositions.
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.