Fluoropolymers having pendant imidate structures

US6803425B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Klaus Hintzer · Woodbury, US
• Werner M. A. Grootaert · Windom, US
• Robert E. Kolb · Afton, US
• Franz Maerz · Altötting, DE
• Werner Schwertfeger · Altötting, DE

Key dates

• Filing date: Apr 11, 2002
• Grant date: Oct 12, 2004
• Expiry date: Apr 11, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J5/18
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A composition comprising (a) a fluoropolymer having pendant imidate groups, which imidate groups have the formula: —C═NH(OR) wherein R is a C1-C10 aliphatic group which aliphatic group may have F or Cl substituents; and optionally, (b) a perfluorovinyl ether of the general formula: CF2═CFO(R′fO)a(R″fO)bRf wherein R′f and R″f are the same or are different C1-C6 linear or branched perfluoroalkylene groups; a and b are, independently, 0 or an integer from 1 to 10; and Rf is a C1-C8 perfluoroalkyl group or a C1-C15 perfluoroalkoxy group. Also provided are a method of making a fluoropolymer composition and curable and cured articles comprising a fluoropolymer composition.