US5116703A
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Functional hybrid compounds and thin films by sol-gel process
Assignee: Xerox Corp
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Filing: 1989-12-15
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Granted: 1992-05-26
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Expires: 2009-12-15
Abstract
Abstract Materials and a process for producing the materials are useful in electrophotographic imaging members. The materials are produced through a sol-gel process wherein a hybrid material, which may be obtained through hydrolysis and condensation, includes an inorganic glassy network, a flexible organic subunit and a functional subunit. The latter two subunits may be unitary. The materials can be easily coated for fabricating electrophotographic imaging members and the like.
Inventors
- 👤 Santokh S. Badesha
- 👤 Milan Stolka
- 👤 John F. Yanus
- 👤 John H. Hodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:32
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/07; G03G5/0662; G03G5/08; G03G5/085
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
56 words
A multilayer electrophotographic imaging member, comprising at least one photoresponsive layer, wherein at least one layer of said imaging member is composed of a compound containing subunits of the formula G-D-F, wherein G is an inorganic glassy network subunit, D is a flexible organic subunit, and F is a subunit having charge transporting or generating characteristics.
Claim 2
Dependent Claim
56 words
A multilayer electrophotographic imaging member, comprising at least one photoresponsive layer, wherein at least one layer of said imaging member is composed of a compound containing subunits of the formula G-D-F, wherein G is an inorganic glassy network subunit, D is a flexible organic subunit, and F is a subunit having charge transporting or generating characteristics.
Claim 3
Dependent Claim
26 words
The imaging member of claim 1, wherein G is a metal oxide glassy network subunit, D is a polymeric subunit, and F is a photoresponsive subunit.
Claim 4
Dependent Claim
26 words
The imaging member of claim 2, wherein the metal of said metal oxide glassy network subunit is at least one Group V or Group VI metal.
Claim 5
Dependent Claim
25 words
The imaging member of claim 3, wherein said metal is selected from the group consisting of Si, Al, Ti, Cu, Fe, As, Se and Te.
Claim 6
Dependent Claim
11 words
The imaging member of claim 3, wherein said metal is Si.
Claim 7
Dependent Claim
20 words
The imaging member of claim 2, wherein D is selected from the group consisting of polysiloxane, polysiloxane derivatives and polyols.
Claim 8
Dependent Claim
21 words
The imaging member of claim 2, wherein D is an alkoxy derivative of polysiloxane having from 1 to 20 carbon atoms.
Claim 9
Dependent Claim
21 words
The imaging member of claim 2, wherein D is an aryloxy derivative of polysiloxane having from 1 to 20 carbon atoms.
Claim 10
Dependent Claim
20 words
The imaging member of claim 2, wherein D is selected from the group consisting of diethoxy terminated-polydimethylsiloxane and divinyl terminated-polydimethylsiloxane.
Claim 11
Dependent Claim
20 words
The imaging member of claim 2, wherein D is selected from the group consisting of polypropylene glycol and polyethylene glycol.
Claim 12
Dependent Claim
13 words
The imaging member of claim 2, wherein F is formed from substituted triarylamines.
Claim 13
Dependent Claim
13 words
The imaging member of claim 2, wherein F is formed from derivatized TAA.
Claim 14
Dependent Claim
15 words
The imaging member of claim 1, wherein said compound is prepared by a sol-gel reaction.
Claim 15
Dependent Claim
42 words
The imaging member of claim 1, wherein said compound is the condensation polymerization reaction product of: a) an inorganic glassy network forming material; b) a polymer having reactive terminal groups; and c) a functional compound having at least one reactive terminal group.
Claim 16
Dependent Claim
26 words
The imaging member of claim 14, wherein said reactive terminal group of said functional compound is selected from the group consisting of hydroxy, alkoxy and halo.
Claim 17
Dependent Claim
74 words
The imaging member of claim 1, wherein said compound is the product of a process comprising the steps of: a) hydrolyzing an inorganic glassy network precursor; b) forming a sol by adding to said inorganic glassy network precursor a polymer precursor having reactive end groups, and a functional precursor having at least one reactive end group; and c) condensing said inorganic glassy network precursor, polymer precursor and functional precursor to obtain said photoresponsive compound.
Claim 18
Dependent Claim
39 words
The imaging member of claim 16, wherein said inorganic glassy network precursor is a metal alkoxide of the formula M(OR).sub.n wherein M is a metal, R is an alkyl group and n is a valence state of said metal.
Claim 19
Dependent Claim
62 words
An imaging member, comprising a layer of a photoresponsive compound made by a process comprising the steps of: a) hydrolyzing a metal alkoxide; b) forming a sol by adding to said metal alkoxide a functional precursor, having polymeric and photoresponsive properties, which will participate in a sol-gel reaction; and c) condensing said metal alkoxide with said functional precursor to form a gel.
Claim 20
Dependent Claim
62 words
An imaging member, comprising a layer of a photoresponsive compound made by a process comprising the steps of: a) hydrolyzing a metal alkoxide; b) forming a sol by adding to said metal alkoxide a functional precursor, having polymeric and photoresponsive properties, which will participate in a sol-gel reaction; and c) condensing said metal alkoxide with said functional precursor to form a gel.
Claim 21
Dependent Claim
18 words
The imaging member of claim 18, wherein said functional precursor contains a polymeric portion and a functional portion.
Claim 22
Dependent Claim
12 words
The imaging member of claim 18, wherein said metal alkoxide is tetraethoxyorthosilicate.
Claim 23
Dependent Claim
22 words
The imaging member of claim 18, wherein said functional precursor is selected from the group consisting of a polysilylene and a polyvinylcarbazole.
Claim 24
Dependent Claim
34 words
An imaging member comprising a layer of a compound containing subunits of the formula G-E, wherein G is an inorganic glassy network unit and E is a functional subunit having polymeric and photoresponsive properties.
Claim 25
Dependent Claim
34 words
An imaging member comprising a layer of a compound containing subunits of the formula G-E, wherein G is an inorganic glassy network unit and E is a functional subunit having polymeric and photoresponsive properties.
Claim 26
Dependent Claim
16 words
The imaging member of claim 22, wherein said inorganic glassy network subunit comprises a metal oxide.
Claim 27
Dependent Claim
20 words
The imaging member of claim 22, wherein said functional subunit contains a first polymeric portion and a second photoresponsive portion.
Claim 28
Dependent Claim
20 words
The imaging member of claim 22, wherein said functional subunit is selected from the group consisting of polyvinylcarbazole and polysilylene.
Claim 29
Dependent Claim
115 words
The imaging member of claim 22, wherein said functional subunit is a derivative of ##STR19## wherein: m=0 or 1 Z is selected from the group consisting of: ##STR20## n is 0 or 1, Ar is selected from the group consisting of: ##STR21## R is selected from the group consisting of --CH 3 , --C 2 H 5 , --C 3 H 7 , and --C 4 H 9 , Ar' is selected from the group consisting of: ##STR22## X is selected from the group consisting of: ##STR23## s is 0, 1, or 2, and X' is an alkylene radical selected from the group consisting of alkylene and isoalkylene groups containing 2 to 10 carbon atoms.
Claim 30
Dependent Claim
71 words
The imaging member of claim 22, wherein said imaging member is obtained by hydrolyzing a metal alkoxide of the formula M(OR) n , wherein M is a Group V or Group VI metal, R is an alkyl or an aryl group having from 1 to 20 carbon atoms, and n is the valence state of said metal, and condensing said hydrolyzed metal alkoxide with a reactive precursor for said functional subunit.
Claim 31
Dependent Claim
14 words
The imaging member of claim 22, wherein said functional subunit has charge transporting characteristics.
Claim 32
Dependent Claim
14 words
The imaging member of claim 22, wherein said functional subunit has charge generating characteristics.
Claim 33
Dependent Claim
21 words
The electrophotographic imaging member of claim 1, wherein said layer is a charge transporting layer and F has charge transporting characteristics.
Claim 34
Dependent Claim
13 words
The electrophotographic imaging member of claim 30, wherein F is a TAA derivative.
Claim 35
Dependent Claim
21 words
The electrophotographic imaging member of claim 1, wherein said layer is a charge generating layer and F has charge generating characteristics.
Claim 36
Dependent Claim
12 words
The electrophotographic imaging member of claim 32, wherein F is a phthalocyanine.
Claim 37
Dependent Claim
23 words
The electrophotographic imaging member of claim 33, wherein said phthalocyanine is selected from the group consisting of silicon dihydroxy phthalocyanine and vanadium dihydroxyphthalocyanine.
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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) | 1995-05-26 | 1995-11-25 | 1996-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-26 | 1999-11-25 | 2000-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-26 | 2003-11-25 | 2004-05-26 | $7700.00 | Window Closed / Lapsed |