US 12,129,453 B2
Detergent composition comprising detersive surfactant and graft polymer
Jessica Eleanor Bean, Ramstein-Miesenbach (DE); Natalia Becker, Sandhausen (DE); Ouidad Benlahmar, Mannheim (DE); Andreas Buechse, Hochspeyer (DE); Annalaura Del Regno, Mannheim (DE); Peter Joachim Fleckenstein, Ludwigshafen Am Rhein (DE); Katarzyna Gorczynska-Costello, Newcastle Upon Tyne (GB); Frank Huelskoetter, Bad Dürkheim (DE); Kate Moira McLuckie, Hamilton (GB); Jan Ole Mueller, Neuhofen (GB); Volker Settels, Bensheim (DE); and Gang Si, Newcastle Upon Tyne (GB)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Aug. 10, 2022, as Appl. No. 17/884,606.
Claims priority of application No. 21191154 (EP), filed on Aug. 12, 2021.
Prior Publication US 2023/0080982 A1, Mar. 16, 2023
Int. Cl. C11D 1/00 (2006.01); C11D 3/00 (2006.01); C11D 3/22 (2006.01); C11D 3/37 (2006.01); C11D 3/386 (2006.01); C11D 3/395 (2006.01)
CPC C11D 3/3788 (2013.01) [C11D 3/0021 (2013.01); C11D 3/222 (2013.01); C11D 3/3746 (2013.01); C11D 3/3753 (2013.01); C11D 3/386 (2013.01); C11D 3/3955 (2013.01)] 11 Claims
 
1. A detergent composition comprising a detersive surfactant and a graft polymer comprising:
(A) about 20 to about 95 wt %, by weight of the polymer, of a polymer backbone as a graft base,
which is obtainable by polymerization of ethylene oxide,
wherein the number average molecular weight of the polymer backbone in g/mol is within about 500 to about 5000; and
(B) about 5 to about 80 wt %, by weight of the polymer, of polymeric sidechains grafted onto the polymer backbone, wherein said polymeric sidechains are obtainable by polymerization of at least one vinyl ester monomer, and optionally at least one other monomer, wherein—if present—the weight ratio of the at least one other monomer to the at least one vinyl ester monomer is less than about 0.5, wherein the at least one other monomer is not N-vinylpyrrolidone and wherein the graft polymer has value P=[molecular weight of the polymer backbone Mn in g/mol]×[percentage of amount of polymeric sidechains based on total polymer weight, with polymer weight being set to “1” and the percentage of amount of polymeric sidechains as fraction thereof] of 50 to 300;
wherein more than 0 and up to 60% of the polymeric sidechains are fully and/or partially hydrolyzed.