Cleaning composition

US6750187B2 · kind B2 · utility

Assignee

• The Proter & Gamble Company · US

Inventors

• Elizabeth Alam · Sharonville, US
• Chandrika Kasturi · Cincinnati, US
• Brian Xiaoqing Song · Mason, US
• Frank William Denome · Cincinnati, US
• Brenda Frances Bennie · Cramlington, GB
• Mairi Campbell · Newcastle upon Tyne, GB
• James Iain Kinloch · Cramlington, GB
• Neha Kapur · Newcastle upon Tyne, GB

Key dates

• Filing date: Jul 16, 2001
• Grant date: Jun 15, 2004
• Expiry date: Dec 23, 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 delivering a plurality of compositions including at least one organic solvent composition into the same or different cycles of an automatic dishwashing machine and washing the soiled cookware/tableware in the resulting solvent-containing wash liquor. 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.