Method of manufacturing an automatic dishwashing detergent product

US11111464B2 · kind B2 · utility

Assignee

• Reckitt Benckiser Finish B.V. · NL

Inventors

• Pavlinka Roy · Ludwigshafen, DE
• Claudia Schmaelzle · Heidelberg, DE
• Caroline Rigobert · Heidelberg, DE
• Heike Weber · Mannheim, DE
• Helmut Witteler · Monsheim, DE
• Yannick Fuchs · Ingelfingen, DE
• Roland Bohn · Laufenburg (Baden), DE

Key dates

• Filing date: May 13, 2020
• Grant date: Sep 7, 2021
• Expiry date: May 13, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D2111/14
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A method of manufacturing an automatic dishwashing detergent product, provided as a discrete dosage unit and comprising a continuous, non-aqueous gel phase, includes manufacturing the gel phase by free radical polymerisation of monomer(s) in a non-aqueous reaction mixture to form a polymeric builder. The reaction mixture comprises at least one non-ionic surfactant which is an optionally end-capped alcohol alkoxylate; and one or more monomers comprising acrylic acid and optionally one or more further α,β-ethylenically unsaturated acids, wherein no more than 0.1 wt % of the total amount of the monomer(s) are crosslinking monomer(s).