Solid peroxo compounds and peroxy compounds stabilized by coating

US6086785A · kind A · utility

Assignee

• Solvay Interox GmbH · GB

Inventors

• Richard R. Roesler · Wexford, US
• Manfred Mathes · Homborn, DE
• Gerd Hecken · Vettelschoß, DE

Key dates

• Filing date: Nov 18, 1998
• Grant date: Jul 11, 2000
• Expiry date: Nov 18, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2991
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The stabilization of solid peroxo and peroxy compounds, in particular of sodium percarbonate and acetyl peroxyborate compounds is described, which can be achieved by coating the peroxo and peroxy compounds with a coating material which is a mixture of essentially a) a fatty acid or preferably an alkali metal or alkaline earth metal salt thereof and b) an anionic surfactant from the group of longer chain substituted sulphonates and sulphates.