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US 11,767,308 B2Granted
Method of stabilizing perfluorodioxolane compound, perfluorodioxolane compound-containing composition and method of producing perfluorodioxolane compound polymer
AssigneesTosoh Corporation, Tosoh Finechem Corporation
InventorsDaisuke Inoue, Yusuke Sesoko, Hiroshi Matsuo, Hiroki Takamiya, Hideyuki Mimura, Tomoya Shimono, Tomonari Nagai
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Abstract
Provided is a method of stabilizing a perfluorodioxolane compound, which includes having a quinone compound present in a composition containing a perfluorodioxolane compound, wherein the perfluorodioxolane compound is one or more perfluorodioxolane compounds selected from the group consisting of a perfluorodioxolane compound denoted by general formula (1) and a perfluorodioxolane compound denoted by general formula (2).
Claims20
A method of stabilizing a perfluorodioxolane, comprising:
- having a quinone present in a composition including the perfluorodioxolane,
- wherein the perfluorodioxolane comprises at least one selected from the group consisting of:
- a compound of formula (1),
- wherein Rf1 and Rf2 each independently denote a fluorine atom or a perfluoroalkyl group having 1 to 6 carbon atoms, an ether bond is optionally present in a carbon-carbon bond in the perfluoroalkyl group, and the Rf1 and Rf2 may optionally bond to each other to form a ring;
- and
- a compound of formula (2),
- wherein Rf3 and Rf4 each independently denote a fluorine atom or a perfluoroalkyl group having 1 to 6 carbon atoms, and an ether bond is optionally present in a carbon-carbon bond in the perfluoroalkyl group;
- and
- the quinone comprises at least one selected from the group consisting of:
- a compound of formula (3),
- wherein R1 to R4 each independently denote a hydrogen atom, a fluorine atom or a chlorine atom;
- and
- a compound of formula (4),
- wherein R5 to R10 each independently denote a hydrogen atom, a fluorine atom or a chlorine atom.
11 more elements
A composition, comprising:
- a perfluorodioxolane;
- and
- a quinone,
- wherein the perfluorodioxolane comprises at least one selected from the group consisting of:
- a compound of formula (1),
- wherein Rf1 and Rf2 each independently denote a fluorine atom or a perfluoroalkyl group having 1 to 6 carbon atoms, an ether bond is optionally present in a carbon-carbon bond in the perfluoroalkyl group, and the Rf1 and Rf2 may optionally bond to each other in a ring;
- and
- a compound of formula (2),
- wherein Rf3 and Rf4 each independently denote a fluorine atom or a perfluoroalkyl group having 1 to 6 carbon atoms, and an ether bond is optionally present in a carbon-carbon bond in the perfluoroalkyl group;
- and
- wherein the quinone comprises at least one selected from the group consisting of:
- a compound of formula (3),
- wherein R1 to R4 each independently denote a hydrogen atom, a fluorine atom or a chlorine atom;
- and
- a compound of formula (4),
- wherein R5 to R10 each independently denote a hydrogen atom, a fluorine atom or a chlorine atom.
13 more elements
Dependencies are inferred from the claim text.