The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 2021
Filed:
Aug. 24, 2017
Reckitt Benckiser Finish B.v., Hoofddorp, NL;
Alias Younis Al-Bayati, Heidelberg, DE;
Gerhard Kämmerer, Heidelberg, DE;
Caroline Sabina Rigobert, Rosmalen, NL;
Claudia Schmaelzle, Heidelberg, DE;
Diego Simionato, Venice, IT;
Michela Tasinazzo, Venice, IT;
RECKITT BENCKISER FINISH B.V., Hoofddorp, NL;
Abstract
A method of making a detergent composition including the following steps in the recited order: providing an aqueous composition comprising a citrate salt; lowering the pH by adding a first, un-neutralized or partially neutralized, polyacrylic acid having a weight average molecular weight in the range of 1000 to 6000 to form a second mixture; increasing the pH by adding alkali metal carbonate and/or alkali metal bicarbonate to form a third mixture; and adding a second polyacrylic acid having a weight average molecular weight in the range of 1000 to 6000 to form a fourth mixture; wherein the detergent composition is preferably an automatic dishwashing detergent composition or a laundry detergent composition.