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Innovation in the use of polymer blends to reduce amine oxide in hand wash and a bleach catalyst for auto dish detergents.
September 6, 2024
By: Christine Esposito
Editor-in-Chief
The US Patent & Trademark Office has issued two new patents to Henkel and Reckitt—No. 3 and No 4, respectively, in Happi’s 2024 International Top 30 Report. Both are related to dish wash detergent technology.
Henkel’s new patent details the use of polymer blends to reduce or eliminate amine oxide in a hand, or manual, dish wash formula.
US Patent No. 12,077,731 B2 (Michelle A. Piombino, Daniel Thomas Piorkowski); Henkel AG & Co. KGaA, Duesseldorf, has patented a hand dishwashing detergent composition that is comprised of water; surfactant base; and foaming booster consisting of polyethyleneimine ethoxylate and polyethylene glycol with a molecular weight of 200,000 Daltons.
The composition is free of amine oxide.
Reckitt’s patent details the use of bleach catalyst in an automatic dish wash detergent formulation.
US 12,077,732 B2 (Alias Younis Al-Bayati, Torsten Roth, Claudia Schmaelzle, Dora Zamuner, John Mark Douthwaite, Graham John Hutchings, Naomi Markham, Cardiff Stuart Hamilton Taylor); Reckitt Benckiser’s new patent is for an automatic dishwashing composition comprising a heterogenous bleach catalyst comprising copper oxide on a zirconium oxide carrier (wherein the heterogeneous bleach catalyst has been acid treated); and one or more of a bleaching agent, a builder, and a bleach activator.
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