Continuous process for the production of ethylene/vinyl ester terpolymers

US5298577A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Baade · Wildeshausen, DE
• Werner Obrecht · Moers, DE
• Christian Ohm · Gernsheim, DE
• Rudolf Casper · Leverkusen, DE
• Kurt P. Neurer · Rübhausen, DE
• Gerd Sylvester · Leverkusen, DE

Key dates

• Filing date: Dec 12, 1989
• Grant date: Mar 29, 1994
• Expiry date: Dec 12, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/916
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A solution polymerisation process carried out continuously in a cascade produces high molecular weight gel-free ethylene terpolymers having on the one hand high resistance to fuels, oils and organic solvents and on the other hand high flexibility even at low temperatures when narrow ranges are adhered to in respect of solvent content, pressure, temperature control and degree of conversion.