Granular bleaching activator

US4695397A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl Sommer · Palzing, DE
• Robert Heinz · Mannheim, DE
• Albert Hettche · Heßheim, DE
• Johannes Perner · Neustadt, DE
• Werner Schuster · Haßloch, DE
• Wolfgang Trieselt · Ludwigshafen, DE

Key dates

• Filing date: Sep 15, 1986
• Grant date: Sep 22, 1987
• Expiry date: Sep 15, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3907
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A granular bleaching activator for use in a detergent or bleach, which has particles which have a size of from 0.5 to 3 mm and are composed of PA1 (a) from 70 to 99.5% by weight of one or more bleaching activators for per-compounds and PA1 (b) from 0.5 to 30% by weight of one or more water-swellable assistants and which have been prepared, without use of water, by compacting the components (a) and (b).