Detergent formulations
AssigneeThe Procter & Gamble Company
InventorsSherri Lynn RANDALL, Jonathan Harris FLANNERY, Jeffrey Scott VAN KOMEN
Life of this patent
Estimating the term…
Abstract
A laundry detergent composition can include a nonionic surfactant, an amine oxide, and a quaternary ammonium salt biocide, where the composition is micellar.
Claims20
A laundry composition, comprising:
- a) about 3% to about 40%, by weight of the composition, of an alkoxylated alcohol nonionic surfactant;
- b) an amine oxide;
- c) about 0.5% to about 3%, by weight of the composition, of a quaternary ammonium salt biocide;
- and
- d) a laundry detergent adjunct, optionally comprising an enzyme, a brightener, or a combination thereof;
- wherein the ratio by weight of the amine oxide to the nonionic surfactant is from about 4:1 to about 1:2, and the composition has micelles.
A laundry detergent composition, comprising:
- a) from about 25% to about 75%, by weight of the composition of total surfactant, comprising:
- i) an amine oxide, and
- ii) from about 3% to about 40%, by weight of the composition, of an ethoxylated nonionic surfactant with an average carbon chain length of about 10 to about 16;
- b) from about 0.5% to about 3.0%, by weight of the composition, of a quaternary ammonium salt biocide;
- and
- c) a laundry detergent adjunct;
- wherein the composition has a pour viscosity of about 140 to about 1500 cps, wherein the ratio by weight of the amine oxide to the nonionic surfactant is from about 4:1 to about 1:2, and the composition has micelles.
A method of enhancing biocidal impact of a dialkyl dimethyl quaternary ammonium salt in a micellar laundry detergent composition comprising the dialkyl dimethyl quaternary ammonium salt and an alkoxylated nonionic surfactant with an average carbon chain length of about 11 to about 16, comprising adding to the laundry composition amine oxide, so that it is in a weight ratio with the alkoxylated nonionic surfactant of about 4:1 to about 1:2.
Dependencies are inferred from the claim text.