US 11,708,545 B2
Particulate laundry softening wash additive comprising a quat and nonionic surfactant carrier
Alessandro Corona, III, Wyoming, OH (US); Michael Paul Fontaine, Springboro, OH (US); Lenae Virginia Johnson, Cincinnati, OH (US); Rajan Keshav Panandiker, West Chester, OH (US); Charles L. Schmitt, Cincinnati, OH (US); and Jaden Scott Zerhusen, Florence, KY (US)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Nov. 5, 2021, as Appl. No. 17/519,877.
Application 17/519,877 is a continuation of application No. 16/703,066, filed on Dec. 4, 2019, granted, now 11,193,091.
Claims priority of application No. 18210073 (EP), filed on Dec. 4, 2018.
Prior Publication US 2022/0056377 A1, Feb. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 1/835 (2006.01); C11D 3/37 (2006.01); C11D 1/62 (2006.01); C11D 3/04 (2006.01); C11D 3/20 (2006.01); C11D 3/22 (2006.01); C11D 17/06 (2006.01)
CPC C11D 3/3707 (2013.01) [C11D 1/62 (2013.01); C11D 3/046 (2013.01); C11D 3/2075 (2013.01); C11D 3/225 (2013.01); C11D 3/227 (2013.01); C11D 17/06 (2013.01)] 19 Claims
 
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; and
wherein said water soluble carrier is selected from the group of C8-C22 alkyl polyalkoxylate comprising more than 40 alkoxylate units, ethoxylated nonionic surfactant having a degree of ethoxylation greater than 0.