Detergent granules

US6635610B1 · kind B1 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Teruaki Tatsuno · Osaka, JP
• Richard Timonthy Hartshorn · Wylam, GB
• Kevin Norwood · Cincinnati, US
• Paul R. Mort, III · Cincinnati, US
• David Scott Bohlen · Sharonville, US
• Steven Matthew Gabriel · Cincinnati, US
• Rinko Katsuda · Kobe, JP
• Noe Ongcoy Hidalgo · Kobe, JP

Key dates

• Filing date: Jul 23, 2001
• Grant date: Oct 21, 2003
• Expiry date: Jul 23, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/29
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A detergent granule and tablets which comprises an anionic surfactant system which comprises an anionic sulphate surfactant and/or an anionic sulphonate surfactant and other detergent active ingredients, the granule comprising at least a first and a second particulate component and optionally a binding agent, characterised in that the ratio of anionic sulphate surfactant to anionic sulphonate surfactant in the particulate components and in the optional binding agent is less than 1:4 or more than 4:1, preferably even less than 1:5 or more than 5:1. The invention also relates to specific granules comprising restricted degree of mixing of anionic sulphonate surfactant and zeolite, anionic sulphate surfactant and carbonate salts and/or restricted degree of mixing of polymeric builder and anionic surfactant, in particular sulphate surfactants.