Highly fluorinated elastomers

US9982091B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Klaus Hintzer · Woodbury, US
• Florian D. Jochum · Neuötting, DE
• Harald Kaspar · Altötting, DE
• Kai H. Lochhaas · Neuötting, DE
• Tilman C. Zipplies · Burghausen, DE
• Tatsuo Fukushi · Woodbury, US

Key dates

• Filing date: Mar 3, 2015
• Grant date: May 29, 2018
• Expiry date: Mar 3, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F214/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Described herein is a peroxide curable, highly fluorinated elastomer derived from (a) a fluorinated di-iodo ether compound of the following formula I: Rf—CF(I)—(CX2)n—(CX2CXR)m—O—R″f-Ok—(CXR′CX2)p—(CX2)q—CF(I)—R′f wherein X is independently selected from F, H, and Cl; Rf and R′f are independently selected from F and a monovalent perfluoroalkane having 1-3 carbons; R is F, or a partially fluorinated or perfluorinated alkane comprising 1-3 carbons; R″f is a divalent fluoroalkylene having 1-5 carbons or a divalent fluorinated alkylene ether having 1-8 carbons and at least one ether linkage; k is 0 or 1; and n, m, and p are independently selected from an integer from 0-5, with the proviso that when k is 0, n+m is at least 1 and p+q is at least 1; and (b) a fluorinated monomer.