US 12,338,412 B2
Low pH detergent composition
Sarah Ann Delaney, Hebron, KY (US); and James William Holder, Fort Thomas, KY (US)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Nov. 14, 2019, as Appl. No. 16/683,493.
Application 16/683,493 is a continuation of application No. 14/284,419, filed on May 22, 2014, granted, now 10,519,400.
Claims priority of provisional application 61/827,147, filed on May 24, 2013.
Prior Publication US 2020/0109350 A1, Apr. 9, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 1/00 (2006.01); C11D 3/20 (2006.01); C11D 3/30 (2006.01); C11D 3/37 (2006.01); C11D 1/14 (2006.01); C11D 1/29 (2006.01)
CPC C11D 1/002 (2013.01) [C11D 3/2075 (2013.01); C11D 3/30 (2013.01); C11D 3/3723 (2013.01); C11D 3/3796 (2013.01); C11D 1/146 (2013.01); C11D 1/29 (2013.01)] 12 Claims
 
1. A detergent composition comprising:
from about 1% to about 50% of a sulfated surfactant selected from the group R′—O—(C2H4O)n—SO3M, ROSO3−M+, and mixtures thereof, wherein R′ and R are alkyl groups having 14 or more carbons, wherein n is from about 1 to 20, and wherein M is a salt-forming cation;
an organic acid comprising citric acid;
a fluorescent whitening agent; and
from about 0.25% to about 10% of an alkalizing agent;
wherein the composition has a pH of about 2 to about 3 when measured neat;
wherein the composition is substantially free of sulfated surfactant according to R′—O—(C2H4O)n—SO3M and ROSO3−M+, wherein R′ and R are alkyl groups having fewer than 14 carbons; and
wherein the composition is substantially free of peroxide bleach.