Patent US4093564A successfully refreshed from Google Patents.
US4093564A
Expired / Lapsed
US
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Electroconductive coatings
Assignee: Georgia Kaolin Co
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Filing: 1977-02-14
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Granted: 1978-06-06
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Expires: 1997-02-14
Abstract
Abstract An electroconductive clay coating for electrophotography having solvent hold-out characteristics is provided comprising an expandable clay, an alkali metal salt, and at least one organic compound from the group consisting of sugar syrups, anionic organic compounds and fluorochemicals. In those compositions using anionic organic compounds a synergism with the expanded clay appears to result.
Inventors
- 👤 William F. Moll, Jr.
- 👤 Frank J. Botta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:00
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/104; C; C09; C09D; C09D5/00; C09D5/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
40 words
An electroconducting clay composition for electrophotography having solvent holdout characteristics comprising an expandable clay, an alkali metal salt and at least one organic compound from the group consisting of sugar and corn syrups, polyvinylacetate, acetylated polyvinylchloride, sulfonated polystyrene and fluorochemicals.
Claim 2
Dependent Claim
40 words
An electroconducting clay composition for electrophotography having solvent holdout characteristics comprising an expandable clay, an alkali metal salt and at least one organic compound from the group consisting of sugar and corn syrups, polyvinylacetate, acetylated polyvinylchloride, sulfonated polystyrene and fluorochemicals.
Claim 3
Dependent Claim
15 words
An electroconducting clay composition as claimed in claim 1 wherein the expandable clay is montmorillonite.
Claim 4
Dependent Claim
17 words
An electroconducting clay composition as claimed in claim 1 wherein the alkali metal salt is lithium chloride.
Claim 5
Dependent Claim
17 words
An electroconducting clay composition as claimed in claim 1 wherein the alkali metal salt is sodium chloride.
Claim 6
Dependent Claim
16 words
An electroconducting clay composition as claimed in claim 1 wherein the organic compound is corn syrup.
Claim 7
Dependent Claim
15 words
An electroconducting clay composition as claimed in claim 1 wherein the organic compound is polyvinylacetate.
Claim 8
Dependent Claim
16 words
An electroconducting clay composition as claimed in claim 1 wherein the organic compound is acetylated polyvinylchloride.
Claim 9
Dependent Claim
16 words
An electroconducting clay composition as claimed in claim 1 wherein the organic compound is sulfonated polystyrene.
Claim 10
Dependent Claim
22 words
An electroconducting clay composition as claimed in claim 1 wherein the organic compound is a mixture of sulfonated polystyrene and a fluorochemical.
References Cited (Backward Citations)
US3639162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |