Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2005-04-12
2005-04-12
Solola, Taofiq (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C548S400000
Reexamination Certificate
active
06878826
ABSTRACT:
Tertiary perfluorocycloamines (TPFCAs) of general formula (1)where n=1 or 2, m=2 or 3, X iswherein at n=2 X isas the basis for gas transport emulsions.TPFCAs comprise a group of compounds which are close in their physicochemical properties to perfluoro-N-(4-methylcyclohexyl)-piperidine, particularly in the critical temperature of dissolution in hexane, and which are used in a mixture, forming a number of compounds with gradually varying characteristics. Owing to this, a greater homogeneity of the fluorocarbon phase is achievable in the emulsions and it becomes possible to enhance the stability of the emulsion particles stabilized by an ethylene oxide-propylene oxide block copolymer, with the absence of toxicity for large animals. A mixture of TPFCAs is prepared by electrochemical fluorination of n-piperidinoheptafluorotoluene in anhydrous hydrogen fluoride. The use of this mixture of TPFCAs instead of individual perfluoro-N-(4-methylcyclohexyl) piperidine simplifies, speeds up the process for preparing perfluorinated organic compounds, makes it cheaper, and provides conditions for broader application of gas transport emulsions based thereon.
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Gervits Lev Lvovich
Ivanitsky Genrikh Romanovich
Maevsky Evgeny Ilich
Makarov Kirill Nikolaevich
Maslennikov Igor Alexeevich
Ladas & Parry LLP
Otkrytoe Aktsionernoe obschestvo Nauchno-proizvodstvennaya firma
Solola Taofiq
LandOfFree
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