PERFLUOROELASTOMERS HAVING A LOW GLASS TRANSITION TEMPERATURE AND METHOD OF MAKING THEM

Title:

PERFLUOROELASTOMERS HAVING A LOW GLASS TRANSITION TEMPERATURE AND METHOD OF MAKING THEM

Document Type and Number:

WIPO Patent Application WO2002060968

Kind Code:

A8

Abstract:

A method of making a curable fluoroelastomer is disclosed. The method comprises the steps of preemulsifying at least one perfluorovinylether in water, and copolymerizing the preemulsified perfluorovinylether with a gaseous fluorinated monomer in the presence of a cure site monomer. The method provides a fluoroelastomer having a glass transition temperature of less than -10 DEG C. Also disclosed is a fluoroelastomer that consists essentially of a perfluorovinylether of formula (I) as defined below, a cure site component, perfluoromethylvinylether, and tetrafluoroethylene and/or chlorotrifluoroethylene.

Inventors:

GROOTAERT WERNER M A (US)
HINTZER KLAUS (US)
MARZ FRANZ (DE)
VAN GOOL GUY (BE)
WORM ALLAN T (US)
HARE ERIK D (US)
COGGIO WILLIAM D (DE)
PALLARINO RICHARD V (US)

Application Number:

PCT/US2001/003195

Publication Date:

November 13, 2003

Filing Date:

January 31, 2001

Export Citation:

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Assignee:

3M INNOVATIVE PROPERTIES CO (US)
GROOTAERT WERNER M A (US)
HINTZER KLAUS (US)
MARZ FRANZ (DE)
VAN GOOL GUY (BE)
WORM ALLAN T (US)
HARE ERIK D (US)
COGGIO WILLIAM D (DE)
PALLARINO RICHARD V (US)

International Classes:

C08F2/24; C08F14/26; C08F214/18; C08F214/26; C08F216/18; (IPC1-7): C08F214/26; C08F14/26

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