Coated granules, use thereof, and washing and cleaning agents containing same

US11268048B2 · kind B2 · utility

Assignee

• WEYLCHEM WIESBADEN GMBH · DE

Inventors

• Paula Barreleiro · Mülheim an der Ruhr, DE
• Roman Morschhäuser · Mainz, DE
• Bo Kuhse · Wiesbaden, DE
• Rolf Ludwig · Eppstein, DE

Key dates

• Filing date: Apr 5, 2018
• Grant date: Mar 8, 2022
• Expiry date: Sep 29, 2038

Classification

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

Abstract

The present invention provides granules containing one or more bleaching catalysts selected from the group of manganese salts or manganese complexes and at least one binder selected from the group of acid organic compounds coated with 0.1 to 3% by weight, referring to the total amount of the granules, with a polyvinyl alcohol-containing coating, wherein the coating comprises at least 80% of polyvinyl alcohol or mixtures thereof, in relation to the total weight of the coating.