US5885698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic image-receiving film
Assignee: Fujifilm Business Innovation Corp
•
Filing: 1996-07-22
•
Granted: 1999-03-23
•
Expires: 2016-07-22
Abstract
Abstract An electrophotographic image-receiving film is disclosed which comprises an transparent support having on one side thereof an image-receiving layer, said support having on the other side thereof a back layer comprising an electro-conductive undercoat layer and an antifriction layer having a reduced coefficient of friction. The electrophotographic image-receiving film has excellent running properties and excellent antiblocking properties.
Inventors
- 👤 Tadashi Takehana
- 👤 Yoshio Tani
- 👤 Kiyoshi Hosoi
- 👤 Katsumi Harada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:43
CPC Classifications
G; G03; G03G; G03G7/00; G03G7/0053; G03G7/0086; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/25; Y10T428/256; Y10T428/257; Y10T428/258; Y10T428/259; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31536; Y10T428/3154; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
53 words
An electrophotographic image-receiving film comprising a transparent support having on one side thereof an image-receiving layer, said support having on the other side thereof a back layer comprising (1) an electro-conductive undercoat layer comprising electro-conductive metal oxide particles dispersed in a polymer an (2) an antifriction layer having a reduced coefficient of friction.
Claim 2
Dependent Claim
53 words
An electrophotographic image-receiving film comprising a transparent support having on one side thereof an image-receiving layer, said support having on the other side thereof a back layer comprising (1) an electro-conductive undercoat layer comprising electro-conductive metal oxide particles dispersed in a polymer an (2) an antifriction layer having a reduced coefficient of friction.
Claim 3
Dependent Claim
24 words
The electrophotographic image-receiving film as claimed in claim 1, wherein said back layer has a coefficient of static friction of not more than 0.30.
Claim 4
Dependent Claim
32 words
The electrophotographic image-receiving film as claimed in claim 1, wherein said back layer has a surface tension of not more than 36 dyn/cm under the condition of 25° C. and 65% RH.
Claim 5
Dependent Claim
22 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the antifriction layer comprises a polyolefin or a copolymer containing olefin units.
Claim 6
Dependent Claim
28 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the electro-conductive metal oxide particles have a particle diameter of not more than 0.2 μm and a polymer.
Claim 7
Dependent Claim
33 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the back layer has a surface resistivity as measured at 25° C. and 65% RH of from 1×10 10 to 1×10 14 Ω.
Claim 8
Dependent Claim
50 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the electro-conductive metal oxide particles are comprised of metal oxides selected from the group consisting of ZnO, TiO, SnO 2 , Al 2 O 3 , In 3 , SiO 2 , MgO, BaO, MoO 3 and complex oxides thereof.
Claim 9
Dependent Claim
23 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the thickness of the electro-conductive undercoat layer is from 0.1 to 2 μm.
Claim 10
Dependent Claim
44 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the antifriction layer comprises a polymer with a low coefficient of static friction selected from the group consisting of polyolefins, methacrylic acid/olefin copolymers, vinyl acetate/olefin copolymers, fluororesins, fluorinated acrylic resins, ionomers and mixtures thereof.
Claim 11
Dependent Claim
22 words
The electrophotographic image-receiving film as claimed in claim 9, wherein the antifriction layer further includes a matting agent, a surfactant or both.
Claim 12
Dependent Claim
22 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the thickness of the antifriction layer is from 0.1 to 10 μm.
Claim 13
Dependent Claim
79 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the image-receiving layer comprises a polyester comprising: repeating units derived from a dibasic acid ingredient which comprise units of at least one dicarboxylic acid selected from the group consisting of terephthalic acid and 2,6-naphthalenedicarboxylic acid and units of a sulfobenzenedicarboxylic acid and repeating units derived from a dihydric alcohol ingredient which comprise ethylene glycol units, triethylene glycol units, and units of an adduct of bisphenol A with ethylene oxide.
Claim 14
Dependent Claim
102 words
The electrophotographic image-receiving film as claimed in claim 12, wherein the repeating units derived from a dibasic acid ingredient comprise from 60 to 95 mol % units of at least one dicarboxylic acid selected from the group consisting of terephthalic acid and 2,6-naphthalenedicarboxylic acid and from 5 to 17 mol % units of a sulfobenzenedicarboxylic acid, and the repeating units derived from a dihydric alcohol ingredient comprise from 10 to 60 mol % ethylene glycol units, from 30 to 90 mol % triethylene glycol units, and from 5 to 40 mol % units of an adduct of bisphenol A with ehtylene oxide.
Claim 15
Dependent Claim
48 words
The electrophotographic image-receiving film as claimed in claim 12, wherein the repeating units derived from a dibasic acid ingredient comprise from 60 to 95 mol % terephthalic acid units, from 0 to 35 mol % isophthalic acid units, and from 5 to 17 mol % sulfobenzenedicarboxylic acid units.
Claim 16
Dependent Claim
48 words
The electrophotographic image-receiving film as claimed in claim 12, wherein the repeating units derived from a dibasic acid ingredient comprise from 0 to 35 mol % isophthalic acid units, from 60 to 95 mol %, 2,6-naphthalenedicarboxylic acid units, and from 5 to 17 mol % sulfobenzenedicarboxylic acid units.
Claim 17
Dependent Claim
57 words
The electrophotographic image-receiving film as claimed in claim 12, wherein the repeating units derived from a dibasic acid ingredient comprise from 0 to 90 mol % terephthalic acid units, from 0 to 35 mol % isophthalic acid units, from 10 to 90 mol % 2,6-naphthalene-dicarboxylic acid units, and from 5 to 17 mol % sulfobenzenedicarboxylic acid units.
Claim 18
Dependent Claim
33 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the image-receiving layer has a surface resistivity as measured at 25° C. and 65% RH of from 1×10 10 to 1×10 14 Ω.
Claim 19
Dependent Claim
22 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the image-receiving layer has a thickness of from 1 to 8 μm.
Claim 20
Dependent Claim
16 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the transparent support comprises poly(ethylene terephthate).
Claim 21
Dependent Claim
26 words
The electrophotographic image-receiving film as claimed in claim 1, wherein the electrophotographic image-receiving film further comprises an electro-conductive layer between said image-receiving layer and said support.
References Cited (Backward Citations)
JPS4875240A
Cited
US3874878A
Cited
US3938999A
Cited
US4078935A
Cited
US4420528A
Cited
JPS58112735A
Cited
JPH01315768A
Cited
US5229188A
Cited
US5352553A
Cited
US5021309A
Cited
JPH0619179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-22 | 2002-09-21 | 2003-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-22 | 2006-09-21 | 2007-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-22 | 2010-09-21 | 2011-03-23 | $7700.00 | Window Closed / Lapsed |