Process for the production of low molecular weight acrylonitrile polymers and their use

US5393845A · kind A · utility

Assignee

• Wolff Walsrode AG · DE

Inventors

• Siegfried Korte · Odenthal, DE
• Heinrich Alberts
• Branislav Bohmer · Walsrode, DE
• Werner Karstens · Bad Fallingbostel, DE
• Wolfgang Koch · Batavia, US
• Hans-Günter Poersch-Panke · Walsrode, DE
• Klaus Szablikowski · Walsrode, DE

Key dates

• Filing date: Dec 16, 1993
• Grant date: Feb 28, 1995
• Expiry date: Dec 16, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F8/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the continuous production of polyacrylonitrile hydrolyzates and to their use as dispersion and grinding aids for pigments and fillers, such as for example kaolin, CaCO.sub.3 or gypsum.