Title:
FLUOROCOPOLYMER AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH0680733
Kind Code:
A
Abstract:
PURPOSE: To obtain the title copolymer having a low oligomer content and improved mechanical strengths by copolymerizing tetrafluoroethylene with a fluoro vinyl ether.
CONSTITUTION: 90-99.5mol% tetrafluoroethylene is copolymerized with 10-0.5mol% fluorinated vinyl ether of the general formula: CF2=CFORf (wherein Rf is a halohydrocarbon group) and a shortstop is added to the reaction mixture. An unreacted monomer is removed from the mixture to obtain a fluorocopolymer having a specific melt viscosity of 102-107P as measured at 372°C and a weight loss of 0.01wt.% or below when extracted with a fluoroorganic solvent.
Inventors:
NAKAHARA AKIHIKO
IZEKI YUJI
OMORI KAZUYUKI
IZEKI YUJI
OMORI KAZUYUKI
Application Number:
JP23493092A
Publication Date:
March 22, 1994
Filing Date:
September 02, 1992
Export Citation:
Assignee:
TOKUYAMA SODA KK
International Classes:
C08F214/26; C08F2/38; C08F6/00; (IPC1-7): C08F214/26
Next Patent: PRODUCTION OF ACRYL ELASTOMER AND COMPOSITION