US5104731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry toner imaging films possessing an anti-static matrix layer
Assignee: Arkwright Inc
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Filing: 1990-08-24
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Granted: 1992-04-14
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Expires: 2010-08-24
Abstract
Abstract Advantageous dry toner imaging film media, having good toner affinity, anti-static properties, embossing resistance, and which reliably feed through electrophotographic copiers and printers are disclosed. The media comprise suitable polymeric substrates, having an anti-static, matrix layer coated thereon. The matrix layer comprises a mixture of at least one thermoplastic polymer having a Tg of 5°-75° C. and possessing good toner adhesion properties, and at least one crosslinked polymer, possessing hot fuser roll embossing resistant properties, wherein at least one polymer in said matrix layer is electrically conductive. Electrophotographic processes, utilizing the film media, are also disclosed.
Inventors
- 👤 Morgan E. Gager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:53
CPC Classifications
G; G03; G03G; G03G7/00; G03G7/0006; G03G7/002; G03G7/0026; G03G7/004; G03G7/0013; G03G7/0046; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/25; Y10T428/254; Y10T428/256; Y10T428/31504
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
120 words
A film medium useful in dry toner imaging processes, which film comprises a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity, said matrix layer comprising a mixture of about 20 to 80% w/w of at least one thermoplastic polymer having a Tg of 5° to 75° C. and about 7 to 80% w/w of at least one crosslinked polymer possessing hot fuser roll embossing resistant properties, wherein at least one polymer in said matrix layer is electrically conductive.
Claim 2
Dependent Claim
120 words
A film medium useful in dry toner imaging processes, which film comprises a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity, said matrix layer comprising a mixture of about 20 to 80% w/w of at least one thermoplastic polymer having a Tg of 5° to 75° C. and about 7 to 80% w/w of at least one crosslinked polymer possessing hot fuser roll embossing resistant properties, wherein at least one polymer in said matrix layer is electrically conductive.
Claim 3
Dependent Claim
114 words
A film medium useful in dry toner imaging processes, which film comprises a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and possessing a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity; said matrix layer comprising a non-polymeric electrically conductive agent, a mixture of about 20 to 80% w/w of at least one thermoplastic polymer having a Tg of from 5° to 75° C. and about 7 to 80% w/w of at least one crosslinked polymer possessing hot fuser roll embossing resistance.
Claim 4
Dependent Claim
114 words
A film medium useful in dry toner imaging processes, which film comprises a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and possessing a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity; said matrix layer comprising a non-polymeric electrically conductive agent, a mixture of about 20 to 80% w/w of at least one thermoplastic polymer having a Tg of from 5° to 75° C. and about 7 to 80% w/w of at least one crosslinked polymer possessing hot fuser roll embossing resistance.
Claim 5
Dependent Claim
17 words
The film medium of claim 1, wherein at least one of said crosslinked polymers is electrically conductive.
Claim 6
Dependent Claim
17 words
The film medium of claim 1, wherein at least one of said thermoplastic polymers is electrically conductive.
Claim 7
Dependent Claim
25 words
The film medium of claim 1, wherein at least one of said thermoplastic polymers and at least one of said crosslinked polymers are electrically conductive.
Claim 8
Dependent Claim
17 words
The film medium of claim 2, wherein at least one of said crosslinked polymers is electrically conductive.
Claim 9
Dependent Claim
17 words
The film medium of claim 2, wherein at least one of said thermoplastic polymers is electrically conductive.
Claim 10
Dependent Claim
25 words
The film medium of claim 2, wherein at least one of said thermoplastic polymers and at least one of said crosslinked polymers are electrically conductive.
Claim 11
Dependent Claim
30 words
The film medium of claim 1, wherein said thermoplastic polymer is non-conductive and is selected from the group consisting of styrenated-acrylate, styrenebutadiene, polyester, epoxy, n-butyl methacrylate and isobutyl methacrylate polymers.
Claim 12
Dependent Claim
21 words
The film medium of claim 1, wherein at least one of said crosslinked polymers is a crosslinked cationic electrically conductive polymer.
Claim 13
Dependent Claim
35 words
The film medium of claim 10, wherein the crosslinked cationic polymer is a cationic cellulose ether polymer, a dimethyl diallyl ammonium chloride/diacetone acrylamide copolymer, a dimethyl diallyl ammonium chloride/n-methanol acrylamide copolymer or a polyethylenimine hydrochloride.
Claim 14
Dependent Claim
20 words
The film medium of claim 11, wherein said cross-linked cationic polymer is crosslinked with an aldehyde, isocyanate or blocked isocyanate.
Claim 15
Dependent Claim
21 words
The film medium of claim 1, wherein at least one of said crosslinked polymers is a crosslinked anionic electrically conductive polymer.
Claim 16
Dependent Claim
44 words
The film medium of claim 13, wherein the anionic conductive polymer is a crosslinked alkali metal salt of poly(styrene sulfonic acid), a crosslinked ammonium salt of poly(acrylic acid), a crosslinked poly(methacrylic acid), a crosslinked sulfonated styrene/maleic anhydride copolymer or a crosslinked free acid thereof.
Claim 17
Dependent Claim
21 words
The film medium of claim 14, wherein the crosslinked anionic conductive polymer is crosslinked with an aldehyde, isocyanate or blocked isocyanate.
Claim 18
Dependent Claim
26 words
The film medium of claim 1, wherein said polymeric substrate is a temperature resistant substrate comprising a polyethylene terephthalate, a polycarbonate, a polysulfone or a polyimide.
Claim 19
Dependent Claim
18 words
The film medium of claim 1, wherein said polymeric support is opaque and comprises a filled polyethylene terephthalate.
Claim 20
Dependent Claim
58 words
The film medium of claim 1, wherein said matrix layer further comprises 0.1 to 50% w/w of a particulate, having a particle size range of from about 1-50 microns, the particulate comprising a wax, a fluorinated polymer, polyethylene, polypropylene, polystyrene, polyacrylate, urea-formaldehyde, silica, calcium carbonate, kaolin, calcined clay, aluminum hydroxide, titanium oxide, zinc oxide, barium sulfate, or lithophone.
Claim 21
Dependent Claim
24 words
The film medium of claim 18, wherein said particulate is substantially transparent and has a particle size range of 2-40 microns and comprises polyethylene.
Claim 22
Dependent Claim
58 words
The film medium of claim 2, wherein said matrix layer further comprises 0.1 to 50% w/w of a particulate, having a particle size range of from about 1-50 microns, the particulate comprising a wax, a fluorinated polymer, polyethylene, polypropylene, polystyrene, polyacrylate, urea-formaldehyde, silica, calcium carbonate, kaolin, calcined clay, aluminum hydroxide, titanium oxide, zinc oxide, barium sulfate, or lithophone.
Claim 23
Dependent Claim
34 words
The film medium of claim 20, wherein said particulate is present in an amount of 0.1 to 10% w/w, is substantially transparent and has a particle size range of 2-40 microns and comprises polyethylene.
Claim 24
Dependent Claim
120 words
In a dry toner imaging process, an improved electrophotographic film medium, comprising: a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity, said matrix layer comprising a mixture of about 20 to 80% w/w of at least one thermoplastic polymer having a Tg of 5° to 75° C. and about 7 to 80% w/w of at least one crosslinked polymer possessing hot fuser roll embossing resistant properties, wherein at least one polymer in said matrix layer is electrically conductive.
Claim 25
Dependent Claim
120 words
In a dry toner imaging process, an improved electrophotographic film medium, comprising: a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity, said matrix layer comprising a mixture of about 20 to 80% w/w of at least one thermoplastic polymer having a Tg of 5° to 75° C. and about 7 to 80% w/w of at least one crosslinked polymer possessing hot fuser roll embossing resistant properties, wherein at least one polymer in said matrix layer is electrically conductive.
Claim 26
Dependent Claim
112 words
In a dry toner imaging process, an improved electrophotographic film medium, comprising: a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity, said matrix layer comprising a nonpolymeric electrically conductive agent, a mixture of about 20 to 80% w/w of at least one thermoplastic polymer having a Tg of 5° to 75° C. and about 7 to 80% w/w of at least one crosslinked polymer possessing hot fuser roll embossing resistance.
Claim 27
Dependent Claim
112 words
In a dry toner imaging process, an improved electrophotographic film medium, comprising: a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity, said matrix layer comprising a nonpolymeric electrically conductive agent, a mixture of about 20 to 80% w/w of at least one thermoplastic polymer having a Tg of 5° to 75° C. and about 7 to 80% w/w of at least one crosslinked polymer possessing hot fuser roll embossing resistance.
Claim 28
Dependent Claim
19 words
The dry toner imaging process of claim 22, wherein at least one of said crosslinked polymers is electrically conductive.
Claim 29
Dependent Claim
19 words
The dry toner imaging process of claim 22, wherein at least one of said thermoplastic polymers is electrically conductive.
Claim 30
Dependent Claim
26 words
The dry toner imaging process of claim 22, wherein at least one of said thermoplastic and at least one of said crosslinked polymers are electrically conductive.
Claim 31
Dependent Claim
19 words
The dry toner imaging process of claim 23, wherein at least one of said crosslinked polymers is electrically conductive.
Claim 32
Dependent Claim
19 words
The dry toner imaging process of claim 23, wherein at least one of said thermoplastic polymers is electrically conductive.
Claim 33
Dependent Claim
26 words
The dry toner imaging process of claim 23, wherein at least one of said thermoplastic and at least one of said crosslinked polymers are electrically conductive.
Claim 34
Dependent Claim
60 words
The dry toner imaging process of claim 22, wherein the matrix layer further comprises 0.1 to 50% w/w of a particulate, having a particle size range of from about 1-50 microns, the particulate comprising a wax, a fluorinated polymer, polyethylene, polypropylene, polystyrene, polyacrylate, urea-formaldehyde, silica, calcium carbonate, kaolin, calcined clay, aluminum hydroxide, titanium oxide, zinc oxide, barium sulfate, or lithophone.
Claim 35
Dependent Claim
35 words
The dry toner imaging process of claim 30, wherein said particulate is present in an amount of 0.1 to 10%, is substantially transparent and has a particle size range of 2-40 microns and comprises polyethylene.
Claim 36
Dependent Claim
60 words
The dry toner imaging process of claim 23, wherein the matrix layer further comprises 0.1 to 50% w/w of a particulate, having a particle size range of from about 1-50 microns, the particulate comprising a wax, a fluorinated polymer, polyethylene, polypropylene, polystyrene, polyacrylate, urea-formaldehyde, silica, calcium carbonate, kaolin, calcined clay, aluminum hydroxide, titanium oxide, zinc oxide, barium sulfate, or lithophone.
Claim 37
Dependent Claim
36 words
The dry toner imaging process of claim 32, wherein said particulate is present in an amount of 0.1 to 10% w/w, is substantially transparent and has a particle size range of 2-40 microns and comprises polyethylene.
Claim 38
Dependent Claim
104 words
A film medium useful in dry toner imaging processes, which film comprises a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity; said matrix layer comprising an electrically conductive polymer, about 20 to 80% w/w of a thermoplastic polymer having a Tg of 5° to 75° C., and about 7 to 80% w/w of a crosslinked polymer possessing hot fuser roll embossing resistance.
Claim 39
Dependent Claim
104 words
A film medium useful in dry toner imaging processes, which film comprises a transparent or opaque polymeric substrate, having on at least one side thereof a matrix layer possessing resistance to blocking at 78° C. after 30 minutes and a surface resistivity of from about 1×10 8 to about 1×10 14 ohms per square when measured at 20° C. and 50% relative humidity; said matrix layer comprising an electrically conductive polymer, about 20 to 80% w/w of a thermoplastic polymer having a Tg of 5° to 75° C., and about 7 to 80% w/w of a crosslinked polymer possessing hot fuser roll embossing resistance.
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) | 1995-04-14 | 1995-10-14 | 1996-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-14 | 1999-10-14 | 2000-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-14 | 2003-10-14 | 2004-04-14 | $7700.00 | Window Closed / Lapsed |