US4515709A
Expired / Lapsed
US
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Ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine, a process for producing the same, and an electrically conductive material comprising the ternary intercalation compound
Assignee: Central Glass Co Ltd
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Filing: 1983-03-09
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Granted: 1985-05-07
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Expires: 2003-03-09
Abstract
Abstract A novel ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine, which is represented by the formula C x F(MF) y wherein M is an alkali metal is produced by reacting a graphite material with an alkali metal fluoride in an atmosphere of fluorine gas at a temperature of 0° C. to 250° C. for at least a period of time to effect a weight increase in the graphite. The ternary graphite intercalation compound thus obtained has not only an excellent stability to humidity or moisture but also a high electrical conductivity. The novel ternary graphite intercalation compound according to the present invention may be practically used as a novel electrically conductive material and a catalyst of organic reactions.
Inventors
- 👤 Nobuatsu Watanabe
- 👤 Tsuyoshi Nakajima
- 👤 Masayuki Kawaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:46
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/04; B; B01; B01J; B01J21/00; B01J21/18; C; C01; C01B; C01B32/00; C01B32/20; C01B32/21; C01B32/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
55 words
A ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine represented by the formula C x F(MF) y wherein M is an alkali metal selected from the group consisting of Li, Na, K, Rb and Cs, x is about 2 to about 100 and y is about 0.001 to about 0.80.
Claim 2
Dependent Claim
55 words
A ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine represented by the formula C x F(MF) y wherein M is an alkali metal selected from the group consisting of Li, Na, K, Rb and Cs, x is about 2 to about 100 and y is about 0.001 to about 0.80.
Claim 3
Dependent Claim
72 words
A ternary intercalation compound according to claim 1, wherein said ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine is a mixed stage compound comprising at least two members selected from the group consisting of a 1st stage compound, a 2nd stage compound, a 3rd stage compound, a 4th stage compound, a 5th stage compound, a 6th stage compound, a 7th stage compound and a 8th stage compound.
Claim 4
Dependent Claim
134 words
A process for producing a ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine represented by the formula C x F(MF) y wherein M is an alkali metal selected from the group consisting of Li, Na, K, Rb and Cs, x is about 2 to about 100 and y is about 0.001 to about 0.80, which comprises reacting a graphite material with an alkali metal fluoride selected from the group consisting of LiF, NaF, KF, RbF and CsF under a fluorine gas pressure of 0.5 to 10 atm at a temperature of 0° C. to 250° C. for at least a period of time to effect a weight increase in the graphite, the graphite material and the alkali metal fluoride being employed in a weight ratio of 1:0.01 to 1:50.
Claim 5
Dependent Claim
134 words
A process for producing a ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine represented by the formula C x F(MF) y wherein M is an alkali metal selected from the group consisting of Li, Na, K, Rb and Cs, x is about 2 to about 100 and y is about 0.001 to about 0.80, which comprises reacting a graphite material with an alkali metal fluoride selected from the group consisting of LiF, NaF, KF, RbF and CsF under a fluorine gas pressure of 0.5 to 10 atm at a temperature of 0° C. to 250° C. for at least a period of time to effect a weight increase in the graphite, the graphite material and the alkali metal fluoride being employed in a weight ratio of 1:0.01 to 1:50.
Claim 6
Dependent Claim
14 words
A process according to claim 3, wherein the temperature is 0° to 200° C.
Claim 7
Dependent Claim
60 words
An electrically conductive material comprising a ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine represented by the formula C x F(MF) y wherein M is an alkali metal selected from the group consisting of Li, Na, K, Rb and Cs, x is about 2 to about 100 and y is about 0.001 to about 0.80.
Claim 8
Dependent Claim
60 words
An electrically conductive material comprising a ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine represented by the formula C x F(MF) y wherein M is an alkali metal selected from the group consisting of Li, Na, K, Rb and Cs, x is about 2 to about 100 and y is about 0.001 to about 0.80.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-06 | 1988-11-05 | 1989-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-06 | 1992-11-05 | 1993-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-06 | 1996-11-05 | 1997-05-07 | $7700.00 | Window Closed / Lapsed |