US4618553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic recording material comprises backing layer containing long-chain alkanoic acid metal salt
Assignee: Fujifilm Holdings Corp
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Filing: 1985-05-28
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Granted: 1986-10-21
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Expires: 2005-05-28
Abstract
Abstract An electrophotographic recording material is disclosed. The material comprises a support having provided thereon a photoconductive layer, in which a backing layer containing a long-chain alkanoic acid metal salt is provided on the reverse side of the support. The material has improved slipping property and excellent running durability.
Inventors
- 👤 Yasuaki Yuyama
- 👤 Junji Nakano
- 👤 Shyunichi Kondo
- 👤 Hideo Sato
- 👤 Kenichi Sawada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:02
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/105; G03G5/108; G03G5/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
An electrophotographic recording material comprising a support having provided thereon a photoconductive layer and a backing layer provided on the opposite side of the support, wherein said backing layer comprises a binder and a long-chain alkanoic acid metal salt represented by the formula: (RCOO).sub.n M wherein M represents a mono-, di- or trivalent metal; R represents an alkyl group having from 12 to 21 carbon atoms and n represents 1, 2 or 3.
Claim 2
Dependent Claim
73 words
An electrophotographic recording material comprising a support having provided thereon a photoconductive layer and a backing layer provided on the opposite side of the support, wherein said backing layer comprises a binder and a long-chain alkanoic acid metal salt represented by the formula: (RCOO).sub.n M wherein M represents a mono-, di- or trivalent metal; R represents an alkyl group having from 12 to 21 carbon atoms and n represents 1, 2 or 3.
Claim 3
Dependent Claim
40 words
An electrophotographic recording material as claimed in claim 1, wherein the long-chain alkanoic acid metal salt is calcium laurate, barium laurate, magnesium laurate, lead laurate, zinc laurate, calcium stearate, magnesium stearate, barium stearate, lead stearate, zinc stearate or zinc behenate.
Claim 4
Dependent Claim
37 words
An electrophotographic recording material as claimed in claim 1, wherein the long-chain alkanoic acid metal salt is present in an amount of from 5 to 50 parts by weight per 100 parts by weight of a binder.
Claim 5
Dependent Claim
36 words
An electrophotographic material as claimed in claim 3, wherein the long-chain alkanoic acid metal salt is present in an amount of from 15 to 30 parts by weight per 100 parts by weight of a binder.
Claim 6
Dependent Claim
37 words
An electrophotographic recording material as claimed in claim 1, wherein the long-chain alkanoic acid metal salt is present in such an amount that the backing layer may have a kinetic friction coefficient of not greater than 0.35.
Claim 7
Dependent Claim
37 words
An electrophotographic recording material as claimed in claim 5, wherein the long-chain alkanoic acid metal salt is present in such an amount that the backing layer may have a kinetic friction coefficient of not greater than 0.3.
Claim 8
Dependent Claim
27 words
An electrophotographic recording material as claimed in claim 1, wherein said binder is selected from the group consisting of synthetic polymer binders and natural high polymer binders.
Claim 9
Dependent Claim
44 words
An electrophotographic recording material as claimed in claim 7, wherein said synthetic high polymer binders are selected from the group consisting of a polyamide resin, a polyester resin, an unsaturated polyester resin, a polystyrene resin, a polyethylene resin, an acrylic resin and synthetic rubber.
Claim 10
Dependent Claim
35 words
An electrophotographic recording material as claimed in claim 7, wherein said natural high polymer binders are selected from the group consisting of cellulose high polymers, proteinous high polymers, derivatives of natural rubber, gutta-percha and balata.
Claim 11
Dependent Claim
26 words
An electrophotographic recording material as claimed in claim 1, wherein the amount of said binder is about 0.1 to 20 g/m 2 on a dry basis.
Claim 12
Dependent Claim
26 words
An electrophotographic recording material as claimed in claim 10, wherein the amount of said binder is about 0.5 to 10 g/m 2 on a dry basis.
References Cited (Backward Citations)
US3501294A
Cited
US4150987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-20 | 1990-04-21 | 1990-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-20 | 1994-04-21 | 1994-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-20 | 1998-04-21 | 1998-10-21 | $7700.00 | Window Closed / Lapsed |