Method of washing a surface with a surfactant composition

US7503333B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• James S. Dailey · Grosse Ile Township, US
• Ernesto Lippert · Oak Ridge, US
• Sridhar G. Iyer · Matthews, US
• Richard Baur · Mutterstadt, DE
• Frank Rittig · Worms, DE

Key dates

• Filing date: Oct 31, 2007
• Grant date: Mar 17, 2009
• Expiry date: Oct 31, 2027

Classification

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

Abstract

A method of washing a surface includes the step of providing a cleaning formulation including a surfactant composition including a first surfactant, a second surfactant, and a polyalkylene glycol. The first surfactant has the general formula: R1—O-(A)mH. R1 is an aliphatic hydrocarbon having from 8 to 11 carbon atoms, A is an alkyleneoxy group having from 2 to 5 carbon atoms, and m is a positive number. The second surfactant has the general formula: R2—O-(B)nH. R2 is an aliphatic hydrocarbon having from 12 to 14 carbon atoms, B is an alkyleneoxy group having from 2 to 5 carbon atoms, and n is a positive number. The polyalkylene glycol is present in an amount of from 3 to 20 parts by weight. The method also includes providing a rinse formulation, applying the cleaning formulation to the surface, and applying the rinse formulation to the surface.