Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From fluorine-containing reactant
Patent
1996-08-12
1998-02-17
Seidleck, James M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From fluorine-containing reactant
528361, 528366, 528370, 528371, 528372, 528401, C08G 6522
Patent
active
057192596
ABSTRACT:
Perfluoroalkylene oxide copolymer having acid fluoride moieties are prepared by reaction of hexafluoropropylene oxide and 1,2-epoxypentafluoropropane 3-fluorosulfate in the presence of a cesium alkoxide initiator. The copolymers may be cured at room temperature and are useful in sealant and coating formulations. Derivatives of the copolymers containing ester, amide, nitrile, and ether moieties are also disclosed.
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Platonova Olga Borisovna
Rondarev Dimetrii Stefanovich
Sokolov Sergey Vasilievich
Solodkaya Irina Gennadievna
Starobin Yurii Kalmanovich
Bromels Marilyn H.
E. I. Du Pont de Nemours and Company
Seidleck James M.
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