IP Library Granted Patent US 12703841
Granted Patent B2
US 12703841 · App. 17/511,986 · Granted Aug 11, 2026

Particulate laundry softening wash additive

Inventors: Alessandro Corona, III (Wyoming, OH); Michael Paul Fontaine (Springboro, OH); Lenae Virginia Johnson (Cincinnati, OH); Rajan Keshav Panandiker (West Chester, OH); Charles L. Schmitt (Cincinnati, OH); Jaden Scott Zerhusen (Florence, KY)
Assignee: The Procter & Gamble Company
C11D3/001C11D3/30C11D3/349C11D3/3707C11D17/06C11D2111/12
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Quick Facts
Patent No.
US 12703841
App. No.
17/511,986
Granted
Aug 11, 2026
Kind
B2
Abstract

A composition including a plurality of particles, the particles including: about 25% to about 94% by weight a water soluble carrier, about 5% to about 45% by weight a quaternary ammonium compound; and about 0.5% to about 10% by weight a cationic polymer, wherein the plurality of particles comprises individual particles; wherein each of the individual particles has a mass from about 1 mg to about 1 g; wherein each of the individual particles has a density less than about 0.98 g/cm 3 .

Claims (25)

1 . A composition comprising a plurality of particles, said plurality of particles comprising:

25% to 94% by weight a water soluble carrier;

10% to 45% by weight a quaternary ammonium compound; and

0.5% to 10% by weight a cationic polymer;

wherein said plurality of particles comprises individual particles, each individual particle having a mass from 1 mg to 1 g;

wherein said individual particles each have a density less than 0.98 g/cm 3 ;

wherein said water soluble carrier is selected from the group consisting of C8-C22 alkyl polyalkoxylate comprising more than 40 alkoxylate units, ethoxylated nonionic surfactant having a degree of ethoxylation greater than 0;

wherein more than about 50% by weight of said particles are retained on a number 10 sieve according to ASTM International, ASTM E11-13; and

wherein said individual particles are homogeneously structured individual particles.

2 . The composition according to claim 1 , wherein said particles have an onset of melt from 25 C to 120 C.

3 . The composition according to claim 1 , wherein said quaternary ammonium compound is formed from a parent fatty acid compound having an Iodine Value from 18 to 60.

4 . The composition according to claim 1 , wherein said quaternary ammonium compound is an ester quaternary ammonium compound.

5 . The composition according to claim 1 , wherein said particles comprise 1% to 5% by weight said cationic polymer.

6 . The composition according to claim 1 , wherein said cationic polymer is a cationic polysaccharide.

7 . The composition according to claim 1 , wherein said particles further comprise from 1% to 40% by weight fatty acid.

8 . The composition according to claim 1 , wherein said quaternary ammonium compound is di-(tallowoyloxyethyl)-N,N-methylhydroxyethylammonium methyl sulfate.

9 . The composition according to claim 1 , wherein said cationic polymer is a cationic polysaccharide, wherein said cationic polysaccharide is polymeric quaternary ammonium salt of hydroxyethylcellulose which has been reacted with an epoxide substituted with a trimethylammonium group.

10 . The composition according to claim 1 , wherein said particles are less than about 10% by weight water.

11 . The composition according to claim 1 , wherein said individual particles comprise said carrier, said quaternary ammonium compound, and said cationic polymer.

12 . The composition according to claim 1 , wherein said individual particles are compositionally the same as one another.

13 . The composition according to claim 1 , wherein said quaternary ammonium compound is formed from a parent fatty acid compound having an Iodine Value from 20 to 60.

14 . The composition according to claim 13 , wherein said quaternary ammonium compound is an ester quaternary ammonium compound.

15 . The composition according to claim 14 , wherein said cationic polymer is a cationic polysaccharide.

16 . The composition according to claim 1 , wherein said plurality of particles comprises a first set of said individual particles and a second set of said individual particles, wherein said first set of said individual particles comprises said water soluble carrier and said quaternary ammonium compound and are substantially free from said cationic polymer and said second set of said individual particles comprises said water soluble carrier and said cationic polymer and are substantially free from said quaternary ammonium compound.

17 . 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 the composition according to claim 1 .