Particulate laundry softening wash additive

Patent metadata

Field	Value
Publication number	US-11193091-B2
Application number	US-201916703066-A
Country	US
Kind code	B2
Filing date	Dec 4, 2019
Priority date	Dec 4, 2018
Publication date	Dec 7, 2021
Grant date	Dec 7, 2021

Abstract

A composition including a plurality of particles, the plurality of 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, each individual particle having a mass from about 1 mg to about 1 g.

First claim

What is claimed is:

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 ; and
wherein said water soluble carrier is a block copolymer having Formulae (I), (II), (III) or (IV),
R 1 O-(EO)x-(PO)y-R 2 (I),
R 1 O-(PO)x-(EO)y-R 2 (II),
R 1 O-(EO)o-(PO)p-(EO)q-R 2 (III),
R 1 O-(PO)o-(EO)p-(PO)q-R 2 (IV), or a combination thereof;
wherein EO is a —CH 2 CH 2 O—group, and PO is a —CH(CH 3 )CH 2 O— group;
R 1 and R 2 independently is H or a C1—C22 alkyl group;
x, y, o, p, and q independently is 1-100;
provided that the sum of x and y is greater than 35, and the sum of o, p and q is greater than 35;
wherein said block copolymer has a weight average molecular weight ranging from 3000 to 15,000.

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 quaternary ammonium compound is an ester quaternary ammonium compound.

11. The composition according to claim 10 , wherein said particles comprise 1% to 5% by weight said cationic polymer.

12. The composition according to claim 11 , wherein said cationic polymer is a cationic polysaccharide.

13. The composition according to claim 12 , wherein said particles further comprise from 1% to 40% by weight fatty acid.

Assignees

• Procter & Gamble

Inventors

• Corona Iii Alessandro
• Fontaine Michael Paul
• Johnson Lenae Virginia
• Panandiker Rajan Keshav
• Schmitt Charles L
• Zerhusen Jaden Scott

Classifications

• C11D3/2075

  Carboxylic acids-salts thereof · CPC title

• C11D3/227

  with nitrogen-containing groups · CPC title

• C11D3/001 Primary

  Softening compositions · CPC title

• C11D1/72

  Ethers of polyoxyalkylene glycols · CPC title

• C11D3/3707 Primary

  Polyethers, e.g. polyalkyleneoxides · CPC title