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US4105446A Expired / Lapsed US ⏱️ 0.0 years remaining

Organic photoconductive coating compositions containing tricyanovinyl compounds for electrophotography

Assignee: Fujifilm Business Innovation Corp
•
Filing: 1976-01-15
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Granted: 1978-08-08
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Expires: 1996-01-15
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Abstract

Abstract An electrophotographic element comprising a support and an organic photoconductive layer formed on the support, the photoconductive layer consisting essentially of (a) an organic photoconductive material, (b) about 0.001 to about 1.20 moles of a nitro derivative selected from the group consisting of a nitro derivative of dibenzothiophenedioxide having the following general formula ##STR1## WHEREIN M AND N ARE INDEPENDENT INTEGERS AND 1 ≦ M + N ≦ 4, AND A NITRO DERIVATIVE OF DIBENZOTHIOPHENESULFOXIDE HAVING THE FOLLOWING GENERAL FORMULA ##STR2## wherein m and n are independent integers and 1 ≦ m + n ≦ 4, and R 1 and R 2 are independently hydrogen, an alkyl group containing from 1 to 7 carbon atoms, a phenyl group, an acetyl group, a carboxyl group, a cyano group or a halogen atom, and (c) about 0.001 to about 1 mole of a tricyanovinyl compound, substances (b) and (c) each being based on 1 mole of the organic photoconductive material or 1 mole of the starting monomer when a polymeric material is used as the organic photoconductive material.

Inventors

  • 👤 Lyong Sun Pu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 21:03
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0624; G03G5/0627; G03G5/0629

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 163 words
An electrophotographic element comprising a support and an organic photoconductive layer formed on said support, said photoconductive layer consisting essentially of (a) an organic photoconductive material, (b) about 0.001 to about 1.20 moles of a nitro derivative selected from the group consisting of a nitro derivative of dibenzothiophenedioxide having the following general formula ##STR5## wherein m and n are independent integers and 1≦m+n≦4, and a nitro derivative of dibenzothiophenesulfoxide having the following general formula ##STR6## wherein m and n are independent integers and 1≦m+n≦4, and R 1 and R 2 are independently hydrogen, an alkyl group containing from 1 to 7 carbon atoms, a phenyl group,an acetyl group, a carboxyl group, a cyano group or a halogen atom, and (c) about 0.001 to about 1 mole of a tricyanovinyl compound, substances (b) and (c) each being based on 1 mole of the organic photoconductive material or 1 mole of the starting monomer when a polymeric material is used as the organic photoconductive material.
Claim 2
Dependent Claim 163 words
An electrophotographic element comprising a support and an organic photoconductive layer formed on said support, said photoconductive layer consisting essentially of (a) an organic photoconductive material, (b) about 0.001 to about 1.20 moles of a nitro derivative selected from the group consisting of a nitro derivative of dibenzothiophenedioxide having the following general formula ##STR5## wherein m and n are independent integers and 1≦m+n≦4, and a nitro derivative of dibenzothiophenesulfoxide having the following general formula ##STR6## wherein m and n are independent integers and 1≦m+n≦4, and R 1 and R 2 are independently hydrogen, an alkyl group containing from 1 to 7 carbon atoms, a phenyl group,an acetyl group, a carboxyl group, a cyano group or a halogen atom, and (c) about 0.001 to about 1 mole of a tricyanovinyl compound, substances (b) and (c) each being based on 1 mole of the organic photoconductive material or 1 mole of the starting monomer when a polymeric material is used as the organic photoconductive material.
Claim 3
Dependent Claim 19 words
The element of claim 1 where said photoconductive layer contain about 0.01 to 0.5 moles of said nitro derivative.
Claim 4
Dependent Claim 17 words
The element of claim where said photoconductive layer contains 0.01 to 0.3 moles of said tricyanovinyl compound.
Claim 5
Dependent Claim 17 words
The element of claim 1 where said photoconductive layer has a thickness of 3 - 20 μ.
Claim 6
Dependent Claim 25 words
The element of claim 1 where said tricyanovinyl compound is selected from the group consisting of tricyanovinylcarbazole, tricyanovinylindole, tricyanovinylpyrrole and alkyl derivatives thereof, and tricyanovinyldiphenylamine.

References Cited (Backward Citations)

US3421891A Cited
US3721552A Cited
US3864126A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-08-07 1982-02-06 1982-08-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-08-07 1986-02-06 1986-08-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-08-07 1990-02-06 1990-08-08 $7700.00 Window Closed / Lapsed

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