C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
402/252, 260/527
C07C 43/315 (2006.01) C08G 4/00 (2006.01) C08G 65/00 (2006.01) C08G 65/16 (2006.01) C08G 65/323 (2006.01) C10M 107/38 (2006.01) C10M 119/22 (2006.01)
Patent
CA 1281337
ABSTRACT OF THE DISCLOSURE Perfluoropolyethers containing an approximate equal number of difluoromethylene and tetrafluoro- ethylene repeat units distributed either randomly or in alternating sequence along the polymer chain are disclosed. The polymers range in molecular weight from 500-200,000 amu; the lower molecular polymers being fluid and the intermediate and high molecular weight polymers being solid. The perfluorinated copolymers are synthesized by direct fluorination of corresponding methylene oxide/ethylene oxide copoly- mers.
522464
Bierschenk Thomas R.
Juhlke Timothy J.
Lagow Richard J.
Bierschenk Thomas R.
Exfluor Research Corporation
Juhlke Timothy J.
Lagow Richard J.
Swabey Ogilvy Renault
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