Alkaline detergent composition containing a carboxylic acid terpolymer for hard water scale control

US10858613B2 · kind B2 · utility

Assignees

• ECOLAB USA INC. · US
• BASF SE

Inventors

• Carter M. Silvernail · Burnsville, US
• Erik C. Olson · Deerfield Beach, US
• Kerrie E. Walters · Windom, US
• Juergen Detering · Schifferstadt, DE
• Arend Jouke Kingma · Saint Paul, US
• James S. Dailey · Grosse Ile Township, US

Key dates

• Filing date: Feb 4, 2019
• Grant date: Dec 8, 2020
• Expiry date: Jun 12, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2303/22
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A highly alkaline detergent is described which includes the use of a carboxylic acid terpolymer in combination with an alkali metal hydroxide. The detergent maintains cleaning functions and also prevents hard water scaling at application temperatures, for example at temperatures of between about 145-180 degrees Fahrenheit and, for example, at a pH of 9.5 to about 13.