US 12,077,732 B2
Bleach catalyst
Alias Younis Al-Bayati, Heidelberg (DE); Torsten Roth, Heidelberg (DE); Claudia Schmaelzle, Heidelberg (DE); Dora Zamuner, Mira (IT); John Mark Douthwaite, Cardiff (GB); Graham John Hutchings, Cardiff (GB); Naomi Markham, Cardiff (GB); and Stuart Hamilton Taylor, Cardiff (GB)
Assigned to Reckitt Benckiser Finish B.V., Hoofddorp (NL)
Appl. No. 18/000,142
Filed by RECKITT BENCKISER FINISH B.V., Hoofddorp (NL)
PCT Filed May 20, 2021, PCT No. PCT/EP2021/063471
§ 371(c)(1), (2) Date Nov. 29, 2022,
PCT Pub. No. WO2021/244861, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 2008512 (GB), filed on Jun. 5, 2020.
Prior Publication US 2023/0119694 A1, Apr. 20, 2023
Int. Cl. C11D 3/39 (2006.01); B01J 21/06 (2006.01); C11D 3/02 (2006.01); C11D 3/395 (2006.01); C11D 7/02 (2006.01); C11D 7/20 (2006.01); C11D 17/00 (2006.01)
CPC C11D 3/3905 (2013.01) [B01J 21/06 (2013.01); C11D 3/02 (2013.01); C11D 3/3953 (2013.01); C11D 7/02 (2013.01); C11D 7/20 (2013.01); C11D 17/0091 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An automatic dishwashing composition comprising:
a heterogenous bleach catalyst comprising copper oxide on a zirconium oxide carrier, and wherein the heterogeneous bleach catalyst has been acid treated; and
one or more of a bleaching agent, a builder, and a bleach activator.