Particulate laundry softening and freshening wash additive comprising perfume and softener particles

Patent metadata

Field	Value
Publication number	US-11760958-B2
Application number	US-202117399440-A
Country	US
Kind code	B2
Filing date	Aug 11, 2021
Priority date	Dec 1, 2017
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A composition including: (i) a plurality of first particles comprising: about 25% to about 94% by weight a water soluble first carrier; and a perfume; wherein each of the first particles has a mass from about 1 mg to about 1 g; (ii) a plurality of second particles having: about 25% to about 94% by weight a water soluble second carrier; about 5% to about 45% by weight a quaternary ammonium compound formed from a parent fatty acid compound having an Iodine Value from about 18 to about 60; and about 0.5% to about 10% by weight a cationic polymer; wherein each of the second particles has a mass from about 1 mg to about 1 g; wherein the first particles and the second particles are in a package.

First claim

What is claimed is:

1. A process for treating an article of clothing comprising the steps of:
providing an article of clothing in a washing machine; and
contacting said article of clothing during a wash sub-cycle of said washing machine with a composition comprising:
(i) a plurality of first particles comprising:
about 25% to about 94% by weight a water soluble first carrier; and
a perfume;
wherein each of said first particles has a mass from about 1 mg to about 1 g;

(ii) a plurality of second particles comprising:
about 25% to about 84% by weight a water soluble second carrier;
about 15% to about 45% by weight a quaternary ammonium compound; and
about 0.5% to about 10% by weight a cationic polymer;
wherein each of said second particles has a mass from about 1 mg to about 1 g;

wherein said second particles are homogeneously structured particles; and
wherein said first particles and said second particles are in a package.

2. The process according to claim 1 , wherein said first carrier and said second carrier are a water soluble polymer.

3. The process according to claim 2 , wherein said quaternary ammonium compound is formed from a parent fatty acid compound having an Iodine Value from about 18 to about 60.

4. The process according to claim 2 , wherein said composition comprises from about 10% to about 90% by weight said first particles and from about 10% to about 90% by weight said second particles.

5. The process according to claim 4 , wherein said first particles have a first particles onset of melt and said second particles have a second particles onset of melt, wherein said first particles onset of melt and said second particles onset of melt differ by less than about 20° C.

6. The process according to claim 5 , where said first particles and said second particles mixed together have a coefficient of uniformity of less than about 2.

7. The process according to claim 6 , wherein said first particles have a first particles D50 and said second particles have a second particles D50, wherein said second particles D50 is within about 20% of said first particles D50.

8. The process according to claim 7 , wherein said first particles and said second particles are together in a single chamber of said package.

9. The process according to claim 8 , wherein said perfume comprises encapsulated perfume.

10. The process according to claim 1 , wherein said first carrier and said second carrier are selected from the group consisting of polyethylene glycol, sodium acetate, sodium bicarbonate, sodium chloride, sodium silicate, polypropylene glycol polyoxoalkylene, polyethylene glycol fatty acid ester, polyethylene glycol ether, sodium sulfate, starch, and mixtures thereof.

11. The process according to claim 1 , wherein said composition comprises from about 10% to about 50% by weight said first particles and from about 50% to about 90% by weight said second particles.

12. The process according to claim 1 , wherein said composition comprises said first particles and said second particles at a ratio of mass of said second particles to mass of said first particles greater than about 1:1.

13. The process according to claim 1 , wherein said composition comprises from more than 0% to about 8% by weight anionic surfactant.

14. The process according to claim 1 , wherein said first particles have a first particles onset of melt and said second particles have a second particles onset of melt, wherein said first particles onset of melt and said second particles onset of melt differ by less than about 20° C.

15. The process according to claim 1 , where said first particles and said second particles mixed together have a coefficient of uniformity of less than about 2.

16. The process according to claim 1 , wherein said first particles have a first particles D50 and said second particles have a second particles D50, wherein said second particles D50 is within about 20% of said first particles D50.

17. The process according to claim 1 , wherein said first particles and said second particles are together in a single chamber of said package.

18. The process according to claim 1 , wherein said perfume comprises encapsulated perfume.

19. The process according to claim 1 , wherein said second particles further comprise fatty acid.

20. The process according to claim 1 , wherein said first particles and said second particles have a ratio of maximum dimension to minimum dimension from about 10 to 1.

Assignees

• Procter & Gamble

Inventors

• Zerhusen Jaden S
• Corona Iii Alessandro
• Johnson Lenae V
• Panandiker Rajan K
• Fontaine Michael P

Classifications

• C11D1/62 Primary

  Quaternary ammonium compounds · CPC title

• C11D3/001

  Softening compositions · CPC title

• C11D3/227

  with nitrogen-containing groups · CPC title

• C11D3/3707

  Polyethers, e.g. polyalkyleneoxides · CPC title

• C11D3/505

  encapsulated or adsorbed on a carrier, e.g. zeolite or clay · CPC title