Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1981-07-02
1983-10-11
Love, Ethel G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D31710
Patent
active
044093934
ABSTRACT:
Perfluoro(2,2-dimethyl-1,3-dioxole) forms oligomers on standing in the presence of an ether. The preferred ethers are aliphatic and cycloaliphatic, especially tetrahydrofuran. Free radical generators, especially peroxydicarbonates, may be added to the reaction medium. The oligomers have a degree of polymerization of about 2-8. They are useful as lubricants, hydraulic fluids, heat transfer agents, and plasticizers, and as intermediates to oligomeric acid fluorides and acids, which acids are useful surfactants.
REFERENCES:
patent: 2433844 (1948-01-01), Hanford
patent: 3308107 (1967-03-01), Selman et al.
patent: 3324144 (1967-06-01), Coe et al.
patent: 3749791 (1973-07-01), Terrell et al.
patent: 3978030 (1976-08-01), Resnick
Chem. Abstracts 81:91505e.
E. I. Du Pont de Nemours and Company
Love Ethel G.
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