Automatic dishwashing detergent having bleach system comprising monopersulfate, cationic bleach activator and perborate or percarbonate

US5599781A · kind A · utility

Inventors

• Donna Jean Haeggberg · Cincinnati, US
• Lucille F. Taylor · Middletown, US
• Mark Robert Sivik · Lancaster, US
• James Charles Theophile Roger Burckett-St. Laurent · Lasne, BE

Key dates

• Filing date: Jul 27, 1995
• Grant date: Feb 4, 1997
• Expiry date: Jul 27, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/0039
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Detergents, especially automatic dishwashing detergents, comprising a stain removal system especially adapted for removal of tea stains, coffee stains and the like. The compositions comprise monopersulfate bleach such as 2KHSO.sub.5 .cndot.KHSO.sub.4 .cndot.K.sub.2 SO.sub.4 in combination with perborate or percarbonate at specific ratios, in combination with certain cationic or quaternary-substituted bleach activators.