Use of crosslinked polyvinylpyrrolidone to increase the rate of disintegration of compact particular detergents and cleaners

US6329334A · kind A · utility

Assignee

• BASF SE

Inventors

• Werner Bertleff · Viernheim, DE
• Folker Ruchatz · Neustadt, DE
• Richard Baur · Mutterstadt, DE
• Robert Heinz · Mannheim, DE
• Peter Palm · Gerolsheim, DE

Key dates

• Filing date: Mar 14, 2000
• Grant date: Dec 11, 2001
• Expiry date: Mar 14, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to the use of crosslinked polyvinylpyrrolidone as an additive to compact, particulate detergents and cleansers for the purpose of increasing the rate of disintegration thereof when brought into contact with water, to the particles of crosslinked polyvinylpyrrolidone having a particle size of from 50 to 400 .mu.m, to a process for the preparation of the compact, particulate detergents and cleansers, and also to the compact, particulate detergents and cleansers themselves.