Pervaporation membranes and use thereof

US5700374A · kind A · utility

Assignee

• Deutsche Carbone AG · DE

Inventors

• Hermann Steinhauser · Riegelsberg, DE
• Hartmut Bruschke · Schallstadt, DE

Key dates

• Filing date: Mar 23, 1995
• Grant date: Dec 23, 1997
• Expiry date: Mar 23, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D71/76
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A membrane comprising a pore-free separation layer, wherein the separation layer consists of poly-dimethyl aminoethyl methacrylate homopolymers or N-vinylpyrrolidone dimethyl aminoethyl methacrylate copolymer or N-vinylcaprolactam dimethyl aminoethyl methacrylate copolymer or N-vinylcaprolactam N-vinylpyrrolidone dimethyl aminoethyl methacrylate terpolymers.