Thermoplastic fluorocopolymers and the fluoromonomers used for their preparation

US5426165A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Ralf Kruger · Bensberg, DE
• Karl-Erwin Piejko · Bensberg, DE
• Michael Negele · Cologne, DE
• Ulrich Eisele · Stuttgart, DE
• Albrecht Marhold · Leverkusen, DE

Key dates

• Filing date: May 12, 1994
• Grant date: Jun 20, 1995
• Expiry date: May 12, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F214/184
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to fluoropolymers with improved temperature resistance and dimensional stability in the heat based on fluoroethylenes, using perfluoro-(cycloalkyl-vinyl ethers) and optionally other monomers as comonomers. The invention also relates to the perfluor-(cycloalkyl-vinyl ethers) which impart the advantageous thermal properties to the fluoropolymers according to the invention.