PREPARATION OF HYDROFLUOROOLEFINS BY DEHYDROFLUORINATION
申请人:SIEVERT Allen Capron
公开号:US20100174123A1
公开(公告)日:2010-07-08
A dehydrofluorination process is disclosed for making hydrofluoroolefins of the structure R
f
CH═CHR
f
, wherein each R
f
is independently a perfluoroalkyl group or a perfluoroalkyl group having a terminal hydrogen. The process involves reacting R
f
CH
2
CHFR
f
with a basic aqueous solution to produce a product mixture comprising R
f
CH═CHR
f
.
Fluorinated hydrocarbons, detergents, deterging method, polymer-containing fluids, and method of forming polymer films
申请人:Nippon Zeon Co., Ltd.
公开号:US06312759B1
公开(公告)日:2001-11-06
Providing a fluorinated hydrocarbon with excellent cleaning action, incombustibility and high stability in alkali or water and heat; and a polymer-containing solution prepared by dissolving or dispersing a polymer with film-forming potency, preferably a fluoropolymer, in a solvent containing trihydrofluorocarbon. More specifically, a fluorinated hydrocarbon containing trihydrofluorocarbon with 4 to 6 carbon atoms at 95% or more, as represented by the following formula, is provided, together with a polymer-containing solution containing the same:
Rf1—R1—Rf2 (I)
wherein R1 represents a carbon chain of CHF and CH2, bound to each other; Rf1 and Rf2 independently represent a perfluoroalkyl group; and Rf1 and Rf2 may be bound to each other, to form a ring.