Polymer suspension containing a water-soluble polymer suspended in an oil phase

US4640954A · kind A · utility

Assignee

• Rohm Co., Ltd. · JP

Inventors

• Reiner Schnee · Darmstadt, DE
• Horst Pennewiss · Darmstadt, DE
• Gerhard Markert · Ober-Ramstadt, DE

Key dates

• Filing date: Feb 1, 1985
• Grant date: Feb 3, 1987
• Expiry date: Feb 1, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2300/14
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A suspension of an aqueous solution of a water-soluble polymer in an organic liquid forming a continuous organic phase, said suspension containing, as an emulsifier, a mixture of two copolymers which are similar but differ in their content of basic nitrogen by 0.1 to 1.5 percentage points.