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Patent Searching and Data


Title:
METHOD FOR EMULSION-POLYMERIZING TETRAFLUOROETHYLENE AND METHOD FOR PREVENTING IRREGULAR POLYMERIZATION THEREOF
Document Type and Number:
WIPO Patent Application WO/1997/020863
Kind Code:
A1
Abstract:
An emulsion polymerization method which comprises emulsion-polymerizing tetrafluoroethylene in the presence of a polymerization initiator, a paraffin wax having a content of reducible substances of 100 ppm or lower, and an emulsifying agent; and a method for preventing irregular tetrafluoroethylene polymerization in the emulsion polymerization method. The methods attain a constant polymerization time and yield a polytetrafluoroethylene having physical properties meeting the intended standards.

Inventors:
KAWAMURA TAKUO (JP)
ICHIBA SHIGERU (JP)
SOTA TOMIZO (JP)
Application Number:
PCT/JP1996/003527
Publication Date:
June 12, 1997
Filing Date:
December 03, 1996
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
KAWAMURA TAKUO (JP)
ICHIBA SHIGERU (JP)
SOTA TOMIZO (JP)
International Classes:
C08F2/22; C08F14/26; (IPC1-7): C08F2/22
Foreign References:
JPS6116907A1986-01-24
JPS63137906A1988-06-09
JPS54110992A1979-08-30
JPH01282227A1989-11-14
Other References:
See also references of EP 0808847A4
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