Builders for detergent and cleaning compositions

US4031022A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Wilhelm Vogt · Lichtenau, DE
• Eberhard Auer · Lechenich, DE
• Gunter Lenz · Höchst, AT
• Karl Merkenich
• Klaus Henning · Usingen, DE
• Joachim Kandler · Lechenich, DE

Key dates

• Filing date: Mar 2, 1976
• Grant date: Jun 21, 1977
• Expiry date: Mar 2, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/74
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Builders for detergent and cleaning compositions. The builders comprise copolymers made from .alpha.-hydroxyacrylic acid and acrylic acid. The copolymers contain between 9 and 85 mol % of acrylic acid and have a relative viscosity within the range 0.05 and 1.0, determined on a 1 weight % solution of the copolymers in aqueous 2N-sodium hydroxide solution, at 20.degree. C.