US4483107A
Expired / Lapsed
US
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Polishing method for electrophotographic photoconductive member
Assignee: Konica Minolta Inc
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Filing: 1982-12-07
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Granted: 1984-11-20
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Expires: 2002-12-07
Abstract
Abstract A method of polishing an electrophotographic photoconductive member, which comprises polishing said surface with polishing particles selected from the group consisting of solid organic polishing particles composed of a polysilsesquioxane having, on its silicon atoms, substituents selected from a lower alkyl group having 2 to 5 carbon atoms, an alkoxy group, an aryl group and an aralkyl group; a combination of said solid organic polishing particles and solid inorganic polishing particles; and a combination of solid organic polishing particles composed of polymethylsilsesquioxane and solid inorganic polishing particles.
Inventors
- 👤 Kageyuki Tomoyori
- 👤 Tatsuo Uchida
- 👤 Tadashi Noda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:19
CPC Classifications
B; B24; B24B; B24B1/00; C; C09; C09K; C09K3/00; C09K3/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
110 words
A method of polishing an electrophotographic conductive member, which comprises polishing said member with polishing particles selected from the group consisting of (1) solid organic polishing particles composed of a polysilsesquioxane having, on its silicon atoms, substituents selected from the group consisting of a lower alkyl group having 2 to 5 carbon atoms, an alkoxy group, an aryl group and an aralkyl group; (2) a combination of said solid organic polishing particles and solid inorganic polishing particles in a weight ratio of 9:1 to 1:9; and (3) a combination of solid organic polishing particles composed of polymethylsilsesquioxane and solid inorganic polishing particles in a weight ratio of 9:1 to 1:9.
Claim 2
Independent Claim
110 words
A method of polishing an electrophotographic conductive member, which comprises polishing said member with polishing particles selected from the group consisting of (1) solid organic polishing particles composed of a polysilsesquioxane having, on its silicon atoms, substituents selected from the group consisting of a lower alkyl group having 2 to 5 carbon atoms, an alkoxy group, an aryl group and an aralkyl group; (2) a combination of said solid organic polishing particles and solid inorganic polishing particles in a weight ratio of 9:1 to 1:9; and (3) a combination of solid organic polishing particles composed of polymethylsilsesquioxane and solid inorganic polishing particles in a weight ratio of 9:1 to 1:9.
Claim 3
Dependent Claim
52 words
The method as claimed in claim 1, wherein said polishing particles are solid organic polishing particles composed of a polysilsesquioxane having, on its silicon atoms, substituents selected from the group consisting of a lower alkyl group having 2 to 5 carbon atoms, an alkoxy group, an aryl group and an aralkyl group.
Claim 4
Dependent Claim
62 words
The method as claimed in claim 1, wherein said polishing particles are a combination of solid organic polishing particles composed of (i) a polysilsesquioxane having, on its silicon atoms, substituents selected from the group consisting of a lower alkyl group having 1 to 5 carbon atoms, an alkoxy group, an aryl group and an aralkyl group, and (ii) solid inorganic polishing particles.
Claim 5
Dependent Claim
34 words
The method as claimed in claim 1, 2 or 3, wherein said substituents are the lower alkyl group and said lower alkyl group is selected from the group consisting of ethyl, propyl and butyl.
Claim 6
Dependent Claim
33 words
The method as claimed in claim 1, 2 or 3, wherein said substituents are the alkoxy group and said alkoxy group is selected from the group consisting of methoxy, ethoxy, propoxy and butoxy.
Claim 7
Dependent Claim
23 words
The method as claimed in claim 1, 2 or 3, wherein said substituents are the aryl group and said aryl group is phenyl.
Claim 8
Dependent Claim
23 words
The method as claimed in claim 1, 2 or 3, wherein said substituents are the aralkyl group and said aralkyl group is benzyl.
Claim 9
Dependent Claim
26 words
The method as claimed in claim 2 or 3, wherein the solid organic polishing particles have an average particle size of from 1 to 50 microns.
Claim 10
Dependent Claim
24 words
The method as claimed in claim 8, wherein the solid organic polishing particles have an average particle size of from 2 to 20 microns.
Claim 11
Dependent Claim
39 words
The method as claimed in claim 3, wherein the solid organic polishing particles have an average particle size of at least 7 microns and the solid inorganic polishing particles have an average particle size of at most 5 microns.
Claim 12
Dependent Claim
40 words
The method as claimed in claim 1, 2 or 3, wherein said electrophotographic photoconductive member comprises a photoconductive layer composed of selenium or a selenium-alloy containing one or more elements selected from the group consisting of tellurium, arsenic and antimony.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |