Patent
US 9,529,312GRAPHENE AND FLUOROPOLYMER COMPOSITE FUSER COATING
Yu Qi
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,529,312Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS 1 A to 1 C show photographs of graphene/PFA dispersion and coatings in which the graphene is not treated with fluorosilane
FIGS 2A to 2C show SEM analysis of untreated (
FIGS 2B and 2C) graphene platelet/PFA mixtures
FIG 2D shows a uniform, defect-free composite coating that was fab ri cated from a coating formulation using graphene/PFA dispersion of
FIG 2C, according to an embodiment of the present disclosure
FIG 3 i llustrates an article of manufacture comp ri sing a graphene- comp ri sing particle/fluoropolymer composite layer, according to an embodiment of the present disclosure 3 Client Ref 20121646-US-NP Attorney Docket 0010 0443
FIG 4 i llustrates a schematic view of a fuser system, according to an embodiment of the presen t disclosure
FIGS 5 and 6 are graphs respectively showing crease area versus fusing temperature data and gloss verses fusing temperature data, according to examples described herein below [0017] It should be noted that some details of the figure have been simplified and are drawn to facilitate understanding of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A fuser comprising: a substrate; and a composite layer formed on the substrate, the composite layer made by flowcoatinq a liquid coatinq composition onto the substrate and heatinq the coatinq composition, the coatinq composition comprising a plurality of fluorosilane-treated graphene-comprising particles and a fluoropolymer, wherein the fluorosilane-treated graphene-comprising particles are more uniformly dispersed in the composite layer than if the as compared to a similar composite layer were made by the same process except that with graphene particles that are untreated are employed instead of the fluorosilane-treated qraphene- comprisinq particles.
The fuser of claim 1, wherein the substrate is a silicone fuser roll.
The fuser of claim 1, wherein the fluorosilane-treated graphene- comprising particles are made by treating a graphene-comprising particle with a trichlorosilane compound comprising a linear fluoroalkyl substituent having at least 6 carbon atoms substituted with fluorine. -2-
The fuser of claim 1, wherein the fluorosilane-treated graphene- comprising particles are selected from the group consisting of fluorosilane-treated graphene, fluorosilane-treated graphene platelets and mixtures thereof.
The fuser of claim 1, wherein the fluorocarbon polymer is a fluoroplastic resin.
The fuser of claim 1, wherein the thickness of the composite layer ranges from about 5 microns to about 100 microns.
The fuser of claim 1, further comprising a low surface energy release layer formed over the composite layer.
canceled
(Withdrawn-Currently Amended) A method for making a fuser, the method, comprising: providing a substrate; -3-
The method of claim 10, wherein the composition further comprises a sacrificial polymeric binder. withdrawn
The method of claim 10, wherein the fluorosilane-treated graphene- comprising particle is made by treating a graphene-comprising particle with a trichlorosilane compound comprising a linear fluoroalkyl substituent having at least 6 carbon atoms that are substituted with fluorine. -4-withdrawn
The method of claim 10, wherein the fluorosilane-treated graphene- comprising particles are selected from the group consisting of fluorosilane-treated graphene, fluorosilane-treated graphene platelets and mixtures thereof. withdrawn
The method of claim 10, wherein the fluoropolymer particle is a fluoroplastic resin. withdrawn
The method of 14, wherein the fluoroplastic resin is selected from the group consisting of polytetrafluoroethylene (PTFE); perfluoroalkoxy polymer resin (PFA); and fluorinated ethylenepropylene copolymers (FEP). 16. The method of claim 10, wherein the baking temperature ranges from about 260 OC to about 360 OC. withdrawn
The method of claim 10, wherein the composite particles are present in an amount ranging from about 50 weight % to about 99 weight %, based on the total weight of the solid in the composition. withdrawn
A method of fusing toner particles to a substrate, the method comprising: providing a print substrate; forming an image of toner particles on the print substrate; and contacting the toner particles on the print substrate with a fuser roll heated to a fusing temperature to permanently affix the image to the substrate, the fuser roll -5-
The method of claim 18, wherein a minimum fixing temperature for fixing the toner particles is less than a minimum fixing temperature for fixing the same toner particles using the same fuser roll except without the fluorosilane-treated graphene-comprising particles.
The method of claim 18, wherein the wherein the toner is Xerox EA- Eco toner and the minimum fixing temperature is less than 112 0 C with a fusing latitude of 7 0 C or more. -6-
Layer stacks claimed or described, ordered top of device to substrate.
fuser roll with fluorosilane-treated graphene/fluoropolymer composite top coat
Materials described outside the worked examples.
fluorosilane-treated graphene-comprising particles
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS 2A to 2C show SEM analysis of untreated (
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
composite layer thickness range | 5–100 microns | composite layer (fluorosilane-treated graphene-comprising particles + fluoropolymer) |
graphene platelet average thickness |
Patent
Atlas literature
Patent
US 9,529,312Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS 1 A to 1 C show photographs of graphene/PFA dispersion and coatings in which the graphene is not treated with fluorosilane
FIGS 2A to 2C show SEM analysis of untreated (
FIGS 2B and 2C) graphene platelet/PFA mixtures
FIG 2D shows a uniform, defect-free composite coating that was fab ri cated from a coating formulation using graphene/PFA dispersion of
FIG 2C, according to an embodiment of the present disclosure
FIG 3 i llustrates an article of manufacture comp ri sing a graphene- comp ri sing particle/fluoropolymer composite layer, according to an embodiment of the present disclosure 3 Client Ref 20121646-US-NP Attorney Docket 0010 0443
FIG 4 i llustrates a schematic view of a fuser system, according to an embodiment of the presen t disclosure
FIGS 5 and 6 are graphs respectively showing crease area versus fusing temperature data and gloss verses fusing temperature data, according to examples described herein below [0017] It should be noted that some details of the figure have been simplified and are drawn to facilitate understanding of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A fuser comprising: a substrate; and a composite layer formed on the substrate, the composite layer made by flowcoatinq a liquid coatinq composition onto the substrate and heatinq the coatinq composition, the coatinq composition comprising a plurality of fluorosilane-treated graphene-comprising particles and a fluoropolymer, wherein the fluorosilane-treated graphene-comprising particles are more uniformly dispersed in the composite layer than if the as compared to a similar composite layer were made by the same process except that with graphene particles that are untreated are employed instead of the fluorosilane-treated qraphene- comprisinq particles.
The fuser of claim 1, wherein the substrate is a silicone fuser roll.
The fuser of claim 1, wherein the fluorosilane-treated graphene- comprising particles are made by treating a graphene-comprising particle with a trichlorosilane compound comprising a linear fluoroalkyl substituent having at least 6 carbon atoms substituted with fluorine. -2-
The fuser of claim 1, wherein the fluorosilane-treated graphene- comprising particles are selected from the group consisting of fluorosilane-treated graphene, fluorosilane-treated graphene platelets and mixtures thereof.
The fuser of claim 1, wherein the fluorocarbon polymer is a fluoroplastic resin.
The fuser of claim 1, wherein the thickness of the composite layer ranges from about 5 microns to about 100 microns.
The fuser of claim 1, further comprising a low surface energy release layer formed over the composite layer.
canceled
(Withdrawn-Currently Amended) A method for making a fuser, the method, comprising: providing a substrate; -3-
The method of claim 10, wherein the composition further comprises a sacrificial polymeric binder. withdrawn
The method of claim 10, wherein the fluorosilane-treated graphene- comprising particle is made by treating a graphene-comprising particle with a trichlorosilane compound comprising a linear fluoroalkyl substituent having at least 6 carbon atoms that are substituted with fluorine. -4-withdrawn
The method of claim 10, wherein the fluorosilane-treated graphene- comprising particles are selected from the group consisting of fluorosilane-treated graphene, fluorosilane-treated graphene platelets and mixtures thereof. withdrawn
The method of claim 10, wherein the fluoropolymer particle is a fluoroplastic resin. withdrawn
The method of 14, wherein the fluoroplastic resin is selected from the group consisting of polytetrafluoroethylene (PTFE); perfluoroalkoxy polymer resin (PFA); and fluorinated ethylenepropylene copolymers (FEP). 16. The method of claim 10, wherein the baking temperature ranges from about 260 OC to about 360 OC. withdrawn
The method of claim 10, wherein the composite particles are present in an amount ranging from about 50 weight % to about 99 weight %, based on the total weight of the solid in the composition. withdrawn
A method of fusing toner particles to a substrate, the method comprising: providing a print substrate; forming an image of toner particles on the print substrate; and contacting the toner particles on the print substrate with a fuser roll heated to a fusing temperature to permanently affix the image to the substrate, the fuser roll -5-
The method of claim 18, wherein a minimum fixing temperature for fixing the toner particles is less than a minimum fixing temperature for fixing the same toner particles using the same fuser roll except without the fluorosilane-treated graphene-comprising particles.
The method of claim 18, wherein the wherein the toner is Xerox EA- Eco toner and the minimum fixing temperature is less than 112 0 C with a fusing latitude of 7 0 C or more. -6-
Layer stacks claimed or described, ordered top of device to substrate.
fuser roll with fluorosilane-treated graphene/fluoropolymer composite top coat
Materials described outside the worked examples.
fluorosilane-treated graphene-comprising particles
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS 2A to 2C show SEM analysis of untreated (
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
composite layer thickness range | 5–100 microns | composite layer (fluorosilane-treated graphene-comprising particles + fluoropolymer) |
graphene platelet average thickness |
Patent
Atlas literature
Patent
US 9,529,312Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS 1 A to 1 C show photographs of graphene/PFA dispersion and coatings in which the graphene is not treated with fluorosilane
FIGS 2A to 2C show SEM analysis of untreated (
FIGS 2B and 2C) graphene platelet/PFA mixtures
FIG 2D shows a uniform, defect-free composite coating that was fab ri cated from a coating formulation using graphene/PFA dispersion of
FIG 2C, according to an embodiment of the present disclosure
FIG 3 i llustrates an article of manufacture comp ri sing a graphene- comp ri sing particle/fluoropolymer composite layer, according to an embodiment of the present disclosure 3 Client Ref 20121646-US-NP Attorney Docket 0010 0443
FIG 4 i llustrates a schematic view of a fuser system, according to an embodiment of the presen t disclosure
FIGS 5 and 6 are graphs respectively showing crease area versus fusing temperature data and gloss verses fusing temperature data, according to examples described herein below [0017] It should be noted that some details of the figure have been simplified and are drawn to facilitate understanding of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A fuser comprising: a substrate; and a composite layer formed on the substrate, the composite layer made by flowcoatinq a liquid coatinq composition onto the substrate and heatinq the coatinq composition, the coatinq composition comprising a plurality of fluorosilane-treated graphene-comprising particles and a fluoropolymer, wherein the fluorosilane-treated graphene-comprising particles are more uniformly dispersed in the composite layer than if the as compared to a similar composite layer were made by the same process except that with graphene particles that are untreated are employed instead of the fluorosilane-treated qraphene- comprisinq particles.
The fuser of claim 1, wherein the substrate is a silicone fuser roll.
The fuser of claim 1, wherein the fluorosilane-treated graphene- comprising particles are made by treating a graphene-comprising particle with a trichlorosilane compound comprising a linear fluoroalkyl substituent having at least 6 carbon atoms substituted with fluorine. -2-
The fuser of claim 1, wherein the fluorosilane-treated graphene- comprising particles are selected from the group consisting of fluorosilane-treated graphene, fluorosilane-treated graphene platelets and mixtures thereof.
The fuser of claim 1, wherein the fluorocarbon polymer is a fluoroplastic resin.
The fuser of claim 1, wherein the thickness of the composite layer ranges from about 5 microns to about 100 microns.
The fuser of claim 1, further comprising a low surface energy release layer formed over the composite layer.
canceled
(Withdrawn-Currently Amended) A method for making a fuser, the method, comprising: providing a substrate; -3-
The method of claim 10, wherein the composition further comprises a sacrificial polymeric binder. withdrawn
The method of claim 10, wherein the fluorosilane-treated graphene- comprising particle is made by treating a graphene-comprising particle with a trichlorosilane compound comprising a linear fluoroalkyl substituent having at least 6 carbon atoms that are substituted with fluorine. -4-withdrawn
The method of claim 10, wherein the fluorosilane-treated graphene- comprising particles are selected from the group consisting of fluorosilane-treated graphene, fluorosilane-treated graphene platelets and mixtures thereof. withdrawn
The method of claim 10, wherein the fluoropolymer particle is a fluoroplastic resin. withdrawn
The method of 14, wherein the fluoroplastic resin is selected from the group consisting of polytetrafluoroethylene (PTFE); perfluoroalkoxy polymer resin (PFA); and fluorinated ethylenepropylene copolymers (FEP). 16. The method of claim 10, wherein the baking temperature ranges from about 260 OC to about 360 OC. withdrawn
The method of claim 10, wherein the composite particles are present in an amount ranging from about 50 weight % to about 99 weight %, based on the total weight of the solid in the composition. withdrawn
A method of fusing toner particles to a substrate, the method comprising: providing a print substrate; forming an image of toner particles on the print substrate; and contacting the toner particles on the print substrate with a fuser roll heated to a fusing temperature to permanently affix the image to the substrate, the fuser roll -5-
The method of claim 18, wherein a minimum fixing temperature for fixing the toner particles is less than a minimum fixing temperature for fixing the same toner particles using the same fuser roll except without the fluorosilane-treated graphene-comprising particles.
The method of claim 18, wherein the wherein the toner is Xerox EA- Eco toner and the minimum fixing temperature is less than 112 0 C with a fusing latitude of 7 0 C or more. -6-
Layer stacks claimed or described, ordered top of device to substrate.
fuser roll with fluorosilane-treated graphene/fluoropolymer composite top coat
Materials described outside the worked examples.
fluorosilane-treated graphene-comprising particles
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS 2A to 2C show SEM analysis of untreated (
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
composite layer thickness range | 5–100 microns | composite layer (fluorosilane-treated graphene-comprising particles + fluoropolymer) |
graphene platelet average thickness |
Patent
Atlas literature
Patent
US 9,529,312Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS 1 A to 1 C show photographs of graphene/PFA dispersion and coatings in which the graphene is not treated with fluorosilane
FIGS 2A to 2C show SEM analysis of untreated (
FIGS 2B and 2C) graphene platelet/PFA mixtures
FIG 2D shows a uniform, defect-free composite coating that was fab ri cated from a coating formulation using graphene/PFA dispersion of
FIG 2C, according to an embodiment of the present disclosure
FIG 3 i llustrates an article of manufacture comp ri sing a graphene- comp ri sing particle/fluoropolymer composite layer, according to an embodiment of the present disclosure 3 Client Ref 20121646-US-NP Attorney Docket 0010 0443
FIG 4 i llustrates a schematic view of a fuser system, according to an embodiment of the presen t disclosure
FIGS 5 and 6 are graphs respectively showing crease area versus fusing temperature data and gloss verses fusing temperature data, according to examples described herein below [0017] It should be noted that some details of the figure have been simplified and are drawn to facilitate understanding of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A fuser comprising: a substrate; and a composite layer formed on the substrate, the composite layer made by flowcoatinq a liquid coatinq composition onto the substrate and heatinq the coatinq composition, the coatinq composition comprising a plurality of fluorosilane-treated graphene-comprising particles and a fluoropolymer, wherein the fluorosilane-treated graphene-comprising particles are more uniformly dispersed in the composite layer than if the as compared to a similar composite layer were made by the same process except that with graphene particles that are untreated are employed instead of the fluorosilane-treated qraphene- comprisinq particles.
The fuser of claim 1, wherein the substrate is a silicone fuser roll.
The fuser of claim 1, wherein the fluorosilane-treated graphene- comprising particles are made by treating a graphene-comprising particle with a trichlorosilane compound comprising a linear fluoroalkyl substituent having at least 6 carbon atoms substituted with fluorine. -2-
The fuser of claim 1, wherein the fluorosilane-treated graphene- comprising particles are selected from the group consisting of fluorosilane-treated graphene, fluorosilane-treated graphene platelets and mixtures thereof.
The fuser of claim 1, wherein the fluorocarbon polymer is a fluoroplastic resin.
The fuser of claim 1, wherein the thickness of the composite layer ranges from about 5 microns to about 100 microns.
The fuser of claim 1, further comprising a low surface energy release layer formed over the composite layer.
canceled
(Withdrawn-Currently Amended) A method for making a fuser, the method, comprising: providing a substrate; -3-
The method of claim 10, wherein the composition further comprises a sacrificial polymeric binder. withdrawn
The method of claim 10, wherein the fluorosilane-treated graphene- comprising particle is made by treating a graphene-comprising particle with a trichlorosilane compound comprising a linear fluoroalkyl substituent having at least 6 carbon atoms that are substituted with fluorine. -4-withdrawn
The method of claim 10, wherein the fluorosilane-treated graphene- comprising particles are selected from the group consisting of fluorosilane-treated graphene, fluorosilane-treated graphene platelets and mixtures thereof. withdrawn
The method of claim 10, wherein the fluoropolymer particle is a fluoroplastic resin. withdrawn
The method of 14, wherein the fluoroplastic resin is selected from the group consisting of polytetrafluoroethylene (PTFE); perfluoroalkoxy polymer resin (PFA); and fluorinated ethylenepropylene copolymers (FEP). 16. The method of claim 10, wherein the baking temperature ranges from about 260 OC to about 360 OC. withdrawn
The method of claim 10, wherein the composite particles are present in an amount ranging from about 50 weight % to about 99 weight %, based on the total weight of the solid in the composition. withdrawn
A method of fusing toner particles to a substrate, the method comprising: providing a print substrate; forming an image of toner particles on the print substrate; and contacting the toner particles on the print substrate with a fuser roll heated to a fusing temperature to permanently affix the image to the substrate, the fuser roll -5-
The method of claim 18, wherein a minimum fixing temperature for fixing the toner particles is less than a minimum fixing temperature for fixing the same toner particles using the same fuser roll except without the fluorosilane-treated graphene-comprising particles.
The method of claim 18, wherein the wherein the toner is Xerox EA- Eco toner and the minimum fixing temperature is less than 112 0 C with a fusing latitude of 7 0 C or more. -6-
Layer stacks claimed or described, ordered top of device to substrate.
fuser roll with fluorosilane-treated graphene/fluoropolymer composite top coat
Materials described outside the worked examples.
fluorosilane-treated graphene-comprising particles
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS 2A to 2C show SEM analysis of untreated (
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
composite layer thickness range | 5–100 microns | composite layer (fluorosilane-treated graphene-comprising particles + fluoropolymer) |
graphene platelet average thickness |
graphene platelets
fluoropolymer
composite layer (fluorosilane-treated graphene-comprising particles + fluoropolymer)
silicone fuser roll
trichlorosilane compound with linear fluoroalkyl substituent (≥6 fluorinated carbons)
(tridecafluoro-1,1,2,2-tetrahydrooctyl)trichlorosilane
nonafluorohexyl trichlorosilane
(3,3,3-trifluoropropyl)trichlorosilane
polytetrafluoroethylene (PTFE)
perfluoroalkoxy polymer resin (PFA)
fluorinated ethylenepropylene copolymer (FEP)
graphene platelets |
graphene platelet surface area per unit weight | 120–150 m2/g | graphene platelets |
graphene-comprising particle loading in composite | 1–50 weight % | fluorosilane-treated graphene-comprising particles |
minimum fixing temperature for Xerox EA-Eco toner | ≤ 112 °C | — |
Temperature | 300–360 °C | — |
Temperature | 330–350 °C | — |
Thickness | 5–100 µm | — |
Thickness | 10–50 µm | — |
Thickness | 15–35 µm | — |
Temperature | ≥ 5 °C | — |
graphene platelets
fluoropolymer
composite layer (fluorosilane-treated graphene-comprising particles + fluoropolymer)
silicone fuser roll
trichlorosilane compound with linear fluoroalkyl substituent (≥6 fluorinated carbons)
(tridecafluoro-1,1,2,2-tetrahydrooctyl)trichlorosilane
nonafluorohexyl trichlorosilane
(3,3,3-trifluoropropyl)trichlorosilane
polytetrafluoroethylene (PTFE)
perfluoroalkoxy polymer resin (PFA)
fluorinated ethylenepropylene copolymer (FEP)
graphene platelets |
graphene platelet surface area per unit weight | 120–150 m2/g | graphene platelets |
graphene-comprising particle loading in composite | 1–50 weight % | fluorosilane-treated graphene-comprising particles |
minimum fixing temperature for Xerox EA-Eco toner | ≤ 112 °C | — |
Temperature | 300–360 °C | — |
Temperature | 330–350 °C | — |
Thickness | 5–100 µm | — |
Thickness | 10–50 µm | — |
Thickness | 15–35 µm | — |
Temperature | ≥ 5 °C | — |
graphene platelets
fluoropolymer
composite layer (fluorosilane-treated graphene-comprising particles + fluoropolymer)
silicone fuser roll
trichlorosilane compound with linear fluoroalkyl substituent (≥6 fluorinated carbons)
(tridecafluoro-1,1,2,2-tetrahydrooctyl)trichlorosilane
nonafluorohexyl trichlorosilane
(3,3,3-trifluoropropyl)trichlorosilane
polytetrafluoroethylene (PTFE)
perfluoroalkoxy polymer resin (PFA)
fluorinated ethylenepropylene copolymer (FEP)
graphene platelets |
graphene platelet surface area per unit weight | 120–150 m2/g | graphene platelets |
graphene-comprising particle loading in composite | 1–50 weight % | fluorosilane-treated graphene-comprising particles |
minimum fixing temperature for Xerox EA-Eco toner | ≤ 112 °C | — |
Temperature | 300–360 °C | — |
Temperature | 330–350 °C | — |
Thickness | 5–100 µm | — |
Thickness | 10–50 µm | — |
Thickness | 15–35 µm | — |
Temperature | ≥ 5 °C | — |
graphene platelets
fluoropolymer
composite layer (fluorosilane-treated graphene-comprising particles + fluoropolymer)
silicone fuser roll
trichlorosilane compound with linear fluoroalkyl substituent (≥6 fluorinated carbons)
(tridecafluoro-1,1,2,2-tetrahydrooctyl)trichlorosilane
nonafluorohexyl trichlorosilane
(3,3,3-trifluoropropyl)trichlorosilane
polytetrafluoroethylene (PTFE)
perfluoroalkoxy polymer resin (PFA)
fluorinated ethylenepropylene copolymer (FEP)
graphene platelets |
graphene platelet surface area per unit weight | 120–150 m2/g | graphene platelets |
graphene-comprising particle loading in composite | 1–50 weight % | fluorosilane-treated graphene-comprising particles |
minimum fixing temperature for Xerox EA-Eco toner | ≤ 112 °C | — |
Temperature | 300–360 °C | — |
Temperature | 330–350 °C | — |
Thickness | 5–100 µm | — |
Thickness | 10–50 µm | — |
Thickness | 15–35 µm | — |
Temperature | ≥ 5 °C | — |