Stable microemulsion cleaning composition

US5616548A · kind A · utility

Assignee

• Colgate-Palmolive Company · US

Inventors

• Barbara Thomas · Princeton, US
• Ammanuel Mehreteab · Piscataway, US
• Rita Erilli · Liège, BE
• Gilbert S. Gomes · Somerville, US
• Frank Bala, Jr. · Middlesex, US
• Jiashi Tarng
• Regis Lysy · Olne, BE
• Guy Broze · Grâce-Hollogne, BE

Key dates

• Filing date: Nov 4, 1994
• Grant date: Apr 1, 1997
• Expiry date: Nov 4, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/72
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A composition comprising approximately by weight 6 to 50% of a mixture of two different anionic surfactants, one of said anionic surfactants being a sulphonate and the other said anionic surfactant being a sulphate, a ratio of said sulphonate to said sulphate being 10:1 to 1:10; 0 to 6% of a nonionic surfactant; 1 to 20% of at least one of a water insoluble organic compound; 0 to 8% of a solubilizing agent; 0 to 14% of a cosurfactant; and the balance being water, wherein the composition has a pH of about 1 to about 11 and is optically clear having at least 90% light transmission and the interfacial tension between the lipophile droplets of said composition and the aqueous phase less than about 10.sup.-2 mN/m.