Granted Patent B2

US 12,435,296 · App. 17/594,642 · Granted Oct 7, 2025

Inventors: Brajesh Jha (Midlothian, VA); Evelyn Mohammed (Hillsborough, NJ); Vivian Mui (Middlesex, NJ); Raul Arellano Maldonado (D. F., MX); Mayur Barai (New Brunswick, NJ)

Assignee: Colgate-Palmolive Company

C11D3/001C11D1/721C11D3/222C11D3/3769C11D3/505C11D2111/12

Abstract

Claims (31)

1. A fabric care composition, comprising:

a water hydratable solid, the water hydratable solid comprising:

one or more water soluble polymers;

one or more cationic polymers; and

one or more starches; and

capsules dispersed in the water hydratable solid,

wherein the capsules comprise a fragrance,

wherein the fragrance is encapsulated in the capsules,

wherein the one or more of the water-soluble polymers comprise a hydroxyalkyl cellulose polymer present in an amount of from 35 wt. % to 45 wt. % based on a total weight of the fabric care composition;

wherein the hydroxyalkyl cellulose polymer is hydroxypropyl methylcellulose present in an amount of about 40.63 wt. %, the one or more cationic polymers are a copolymer of acrylamide and diallyldimethylammonium chloride present in an amount of about 7.81 wt. %, all based on a total weight of the fabric care composition; and wherein the term “about” in conjunction with a numeral refers to values that are within +5% of given values above.

2. The fabric care composition of claim 1 , wherein the one or more hydroxyalkyl cellulose polymers comprise hydroxypropyl methylcellulose.

3. The fabric care composition of claim 1 , wherein the one or more starches comprises corn starch.

4. The fabric care composition of claim 1 , wherein the one or more cationic polymers comprises a polyquat.

5. The fabric care composition of claim 1 , wherein the one or more cationic polymers is selected from the group consisting of poly(acrylamide-co-diallyldimethylammonium chloride), poly(acrylamide-methacrylamidopropyltrimethyl ammonium chloride), poly(acrylamide-co-N,N-dimethyl aminoethyl acrylate) and its quaternized derivatives, poly(acrylamide-co-N,N-dimethyl aminoethyl methacrylate) and its quaternized derivative, poly(hydroxyethylacrylate-co-dimethyl aminoethyl methacrylate), poly(hydroxpropylacrylate-co-dimethyl aminoethyl methacrylate), poly(hydroxpropylacrylate-co-methacrylamidopropyltrimethyl ammonium chloride), poly(acrylamide-co-diallyldimethylammonium chloride-co-acrylic acid), poly(acrylamide-methacrylamidopropyltrimethyl ammonium chloride-co-acrylic acid), poly(diallyldimethyl ammonium chloride), poly(vinylpyrrolidone-co-dimethylaminoethyl methacrylate), poly(ethyl methacrylate-co-quaternized dimethylaminoethyl methacrylate), poly(ethyl methacrylate-co-oleyl methacrylate-co-diethylaminoethyl methacrylate), poly(diallyldimethylammonium chloride-co-acrylic acid), poly(vinyl pyrrolidone-co-quaternized vinyl imidazole), poly(acrylamide-co-Methacryloamidopropyl-pentamethyl-1,3-propylene-2-ol-ammonium dichloride), and combinations thereof.

6. The fabric care composition of claim 1 , wherein the one or more cationic polymers comprises a copolymer of acrylamide and a quaternium ammonium salt, wherein the quaternium ammonium salt is diallyldimethylammonium chloride.

7. The fabric care composition of claim 1 , wherein the fabric care composition is a solid, optionally, a solid film.

8. The fabric care composition of claim 1 , wherein the fabric care composition is free or substantially free of fibers.

9. A method for preparing the fabric care composition of claim 1 , the method comprising:

contacting the one or more water soluble polymers, the one or more cationic polymers, and the one or more starches with a suitable solvent to prepare a film forming composition;

dispersing the capsules in the film forming composition; and

removing the solvent from the film forming composition to thereby prepare a solid fabric care composition.

10. The method of claim 9 , wherein removing the solvent from the film forming composition comprises:

casting the film forming composition on a substrate; and

evaporating the solvent from the film forming composition, optionally, evaporating the solvent with heat.

11. The method of claim 9 , further comprising contacting a surfactant with the film forming composition.

12. A method for delivering increased fragrance intensity to a fabric, the method comprising washing the fabric with the fabric care composition of claim 1 , optionally, washing the fabric with the fabric care composition and a detergent.

13. The method of claim 12 , further comprising depositing the capsules of the fabric care composition on the fabric.

14. The fabric care composition of claim 1 for use in delivering increased fragrance intensity to a fabric, comprising a step of washing the fabric with the fabric care composition of claim 1 .

15. The fabric care composition of claim 1 , wherein the fragrance is melamine-formaldehyde encapsulated fragrance present in an amount of about 34.37 wt. %, the one or more hydroxyalkyl cellulose polymers are hydroxypropyl methylcellulose present in an amount of about 40.63 wt. %, all based on a total weight of the fabric care composition; and wherein the term “about” in conjunction with a numeral refers to values that are within ±5% of given values above.

16. The fabric care composition of claim 1 , further comprising propylene glycol present in an amount of about 4.69 wt. % and polysorbate 80 present in an amount of about 1.56 wt. %, all based on a total weight of the fabric care composition; and wherein the term “about” in conjunction with a numeral refers to values that are within +5% of given values above.

17. The fabric care composition of claim 1 , further comprising starch present in an amount of about 9.38 wt. % and excipients present in an amount of about 1.56 wt. %, all based on a total weight of the fabric care composition; and wherein the term “about” in conjunction with a numeral refers to values that are within ±5% of given values above.

Assignments (1)

Continuity (1)

References Cited (27)