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US4642201A
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Compositions for improving the stability of intercalated graphite structural members
Assignee: INTERCAL COMPANY A GENERAL PARTNERSHIP OF MI
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Filing: 1985-08-27
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Granted: 1987-02-10
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Expires: 2005-08-27
Abstract
Abstract Members, such as bearings, gaskets, electrical conductors and the like, as well as containing coatings, made from graphite intercalated with a metal halide exhibit superior stability except when used or stored in an extremely humid atmosphere. In a humid atmosphere these members and coatings tend to swell, crack and develop a corrosion layer over time. In accordance with the present invention, however, members and coatings made from intercalated graphite mixed with from 2 vol. % to about 30 vol. % of a metal powder do not exhibit this environmental instability.
Inventors
- 👤 Ferdinand L. Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:14
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/027; C; C01; C01B; C01B32/00; C01B32/20; C01B32/21; C01B32/22; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/536; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/102; F16J15/12; F16J15/121; F16J15/126; H01B; H01B1/00; H01B1/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
48 words
A powder for forming an environmentally stable member, comprising: a metal halide intercalated graphite; and a metal selected from the group consisting of copper, nickel, silver, molybdenum and tungsten; wherein said metal comprises from about 2 volume percent to about 30 volume percent of said environmentally stable powder.
Claim 2
Dependent Claim
48 words
A powder for forming an environmentally stable member, comprising: a metal halide intercalated graphite; and a metal selected from the group consisting of copper, nickel, silver, molybdenum and tungsten; wherein said metal comprises from about 2 volume percent to about 30 volume percent of said environmentally stable powder.
Claim 3
Dependent Claim
56 words
An environmentally stable intercalated graphite member comprising a compact body formed from: a metal halide intercalated graphite; and a finely divided metal powder selected from the group consisting of copper, nickel, silver, molybdenum and tungsten; wherein said finely divided metal powder comprises from about 2 volume percent to about 30 volume percent of said compact body.
Claim 4
Dependent Claim
56 words
An environmentally stable intercalated graphite member comprising a compact body formed from: a metal halide intercalated graphite; and a finely divided metal powder selected from the group consisting of copper, nickel, silver, molybdenum and tungsten; wherein said finely divided metal powder comprises from about 2 volume percent to about 30 volume percent of said compact body.
Claim 5
Dependent Claim
63 words
An environmentally stable intercalated graphite coating comprising: a metal halide intercalated graphite; a finely divided metal powder selected from the group consisting of copper, nickel, molybdenum and tungsten; and a liquid resin binder; wherein said metal powder comprises from about 2 volume percent to about 30 volume percent of said coating based on the total volume of the intercalated graphite and metal powder.
Claim 6
Dependent Claim
63 words
An environmentally stable intercalated graphite coating comprising: a metal halide intercalated graphite; a finely divided metal powder selected from the group consisting of copper, nickel, molybdenum and tungsten; and a liquid resin binder; wherein said metal powder comprises from about 2 volume percent to about 30 volume percent of said coating based on the total volume of the intercalated graphite and metal powder.
Claim 7
Dependent Claim
16 words
The powder in accordance with claim 1 wherein the metal is a finely divided metal powder.
Claim 8
Dependent Claim
41 words
The powder in acordance with claim 4 wherein the metal halide is selected from the group consisting of a halide of a transition element, a halide of a group III A, IV A, V A and VI A metal or metalloid.
Claim 9
Dependent Claim
31 words
The powder in accordance with claim 5 wherein the metal halide is selected from the group consisting of copper chloride, cobalt chloride, nickel chloride, chromium chloride, cadmium chloride and ferric chloride.
Claim 10
Dependent Claim
41 words
The member in accordance with claim 2 wherein the metal halide is selected from the group consisting of a halide of a transition element, a halide of a group III A, IV A, V A and VI A metal or metalloid.
Claim 11
Dependent Claim
25 words
The member in accordance with claim 2, wherein the member further comprises a polymer selected from the group of a thermoplastic and a thermosetting polymer.
Claim 12
Dependent Claim
11 words
The member in accordance with claim 2 further comprising ceramic powder.
Claim 13
Dependent Claim
13 words
A member in accordance with claim 2, wherein the member is a bearing.
Claim 14
Dependent Claim
13 words
A member in accordance with claim 2, wherein the member is a gasket.
Claim 15
Dependent Claim
14 words
A member in accordance with claim 2, wherein the member is an electric contact.
Claim 16
Dependent Claim
40 words
The coating in accordance with claim 3 wherein the metal halide is selected from the group consisting of halide of a transition element, a halide of a group III A, IV A, V A and VI A metal or metalloid.
Claim 17
Dependent Claim
31 words
The coating in accordance with claim 13 wherein the metal halide is selected from the group consisting of copper chloride, cobalt chloride, nickel chloride, chromium chloride, cadmium chloride and ferric chloride.
References Cited (Backward Citations)
US4565649A
Cited
US4414142A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |