Cleaning composition

US6740628B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Brenda Frances Bennie · Cramlington, GB
• Mairi Campbell · Newcastle upon Tyne, GB
• Elizabeth Alam · Sharonville, US
• Neha Kapur · Newcastle upon Tyne, GB
• William Michael Scheper · Lawrenceburg, US
• Glenn Thomas Jordan, IV · Indian Springs, US
• Chanchal Kumar Ghosh · Sharonville, US
• Chandrika Kasturi · Cincinnati, US
• Frank William Denome · Cincinnati, US
• Brian Xiaoqing Song · Mason, US
• James Iain Kinloch · Cramlington, GB

Key dates

• Filing date: Jul 16, 2001
• Grant date: May 25, 2004
• Expiry date: Aug 28, 2021

Classification

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

Abstract

A method of removing cooked-, baked-, or burnt-on food soil from cookware and tableware comprising washing the cookware/tableware in an automatic dishwashing machine in the presence of an organic solvent system having a volatile organic content of less than about 50% by weight and a wash liquor concentration of from about 100 ppm to about 10000 ppm. The method includes the storage and delivery of organic solvent compositions and dishwashing detergent composition from multi-compartment containers. The method provides excellent removal of stubborn soils which are very difficult to remove in a conventional automatic dishwashing process.