WO2008035625A1 - Bande pour un appareil de formation d'image - Google Patents
Bande pour un appareil de formation d'image Download PDFInfo
- Publication number
- WO2008035625A1 WO2008035625A1 PCT/JP2007/067925 JP2007067925W WO2008035625A1 WO 2008035625 A1 WO2008035625 A1 WO 2008035625A1 JP 2007067925 W JP2007067925 W JP 2007067925W WO 2008035625 A1 WO2008035625 A1 WO 2008035625A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belt
- image forming
- forming apparatus
- imide
- elastic layer
- Prior art date
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
- G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
- G03G15/1605—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support
- G03G15/162—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support details of the the intermediate support, e.g. chemical composition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
- G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
- G03G15/1665—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
- G03G15/167—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer
- G03G15/1685—Structure, details of the transfer member, e.g. chemical composition
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2053—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
- G03G15/2057—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating relating to the chemical composition of the heat element and layers thereof
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/16—Transferring device, details
- G03G2215/1647—Cleaning of transfer member
- G03G2215/1661—Cleaning of transfer member of transfer belt
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/20—Details of the fixing device or porcess
- G03G2215/2003—Structural features of the fixing device
- G03G2215/2016—Heating belt
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/20—Details of the fixing device or porcess
- G03G2215/2003—Structural features of the fixing device
- G03G2215/2048—Surface layer material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31721—Of polyimide
Definitions
- the present invention relates to an image forming apparatus belt used in an image forming apparatus such as a copying machine, a facsimile machine, and a printer.
- an intermediate transfer belt used in a transfer unit and a belt for an image forming apparatus such as a fixing belt used in a fixing unit are generally made of a polyimide resin because of the necessity of high-precision driving.
- a belt is used.
- the belt may be composed of a single layer of polyimide resin S.
- a polyimide resin is used as a base material and an elastic layer is provided on the base material.
- a layer belt or a three-layer belt in which a release resin layer is further provided on the elastic layer is often used.
- Patent Document 1 describes an intermediate transfer belt composed of two or more layers having elasticity, a polyimide resin as a base material, a rubber material as an elastic layer, and a release layer (release layer). Fluorine resin or the like is used for the moldable resin layer).
- Patent Document 2 describes a fixing part film (fixing belt) in which a silicone rubber layer (elastic layer) and a release resin layer are provided in this order on a heat resistant resin layer (base material). In addition, thermosetting polyimide resin is used, and fluorine resin is used for the release resin layer.
- the elastic layer is required to have heat resistance, an appropriate elastic modulus, adhesion to a substrate, and other characteristics.
- the elastic layer is made of a rubber material, urethane, or the like, heat resistance and adhesion are problematic, and when it is made of fluororesin, silicone rubber, or the like, there are problems in adhesion.
- Patent Document 3 describes a semiconductive belt for an electrophotographic apparatus in which an elastic layer and a core layer (base material) are made of polyurethane or polyurea.
- the elastic modulus of the elastic layer is 1. It is described as 0-60Mpa.
- the elastic modulus required for the elastic layer of the belt for an image forming apparatus is considered to be appropriate as described in this document! It is.
- Patent Document 1 Japanese Patent Laid-Open No. 2003-131492
- Patent Document 2 Japanese Patent Laid-Open No. 11 15303
- Patent Document 3 Japanese Patent Application Laid-Open No. 2001_109276
- An object of the present invention is to achieve high image quality and high-speed printing by using a material having heat resistance and appropriate elastic modulus for the elastic layer and excellent adhesion to the base material, and improving durability. It is to provide an excellent belt for an image forming apparatus.
- the present inventors have an elastic layer that has excellent heat resistance, can easily adjust the elastic modulus, and has excellent affinity with the polyimide resin of the substrate.
- the inventors have found a new solution to use a specific elastomer for the elastic layer and have completed the present invention.
- the belt for an image forming apparatus of the present invention is characterized in that at least an elastic layer is provided on a base material made of polyimide resin, and the elastic layer is made of an imide-modified elastomer.
- an elastic layer made of an imide-modified elastomer is provided on a base material made of polyimide resin. Since the imide-modified elastomer can adjust the elastic modulus by changing the imide fraction in the molecular chain, the elastic modulus of the elastic layer can be adjusted to a desired value. That is, since the elastic modulus of the elastic layer can be easily adjusted to an appropriate value, the belt for an image forming apparatus provided with this elastic layer on the substrate can exhibit high image quality and high-speed printing. .
- the elastic layer is made of an imide-modified elastomer having an imide component, a polyimide resin Since the affinity with a base material made of fat is increased, it is possible to suppress the decrease in durability due to the separation of the two. Further, an image forming apparatus belt having an imide-modified elastomer force and an elastic layer formed on a base material made of polyimide resin has heat resistance required for, for example, a fixing belt. Therefore, the usefulness of the present invention increases particularly when the belt that is particularly effective for the present invention is used as the fixing belt in which the peeling between the base material and the inertia layer, which has a severe temperature cycle, remarkably occurs.
- FIG. 1 is an enlarged schematic cross-sectional view showing a belt for an image forming apparatus according to an embodiment of the present invention.
- FIG. 2 is an IR spectrum of PIUE (1) obtained in Synthesis Example 1.
- FIG. 1 is an enlarged schematic cross-sectional view showing the image forming apparatus belt of the present embodiment.
- the belt 1 for an image forming apparatus which is effective in the present embodiment, is provided with a base material 2, an elastic layer 3 provided on the base material 2, and provided on the elastic layer 3. It is composed of a releasable resin layer 4.
- the substrate 2 is made of a polyimide resin.
- the polyimide resin is not particularly limited, and is generally obtained by imidizing a polyamic acid synthesized from an acid anhydride and a diamine compound with heat and a catalyst.
- examples of the acid anhydride include pyromellitic anhydride, oxydiphthalic dianhydride, biphenyl 3, 4, 3 ', 4'-tetracarboxylic dianhydride, benzophenone-3 , 4, 3 ', 4'-tetracarboxylic dianhydride, diphenyl sulfone-3, 4, 3', 4, 1 tetra-force nolevonic dianhydride, 4, 4 'one (2, 2, one to Xaphnoreo mouth isopropylidine) diphthalic dianhydride, aromatic tetracarboxylic dianhydrides such as cyclobutane 1,2,3,4-tetracarboxylic dianhydride, and the like.
- Examples of the diamine compound include 1,4-diaminobenzene, 1,3 diaminoben. Zen, 2,4 diaminotoluene, 4,4'-diaminodiphenylmethane, 4,4'-diaminodiphenyl ether, 3,4'-diaminodiphenyl ether, 3, 3,1 dimethyl-4,4'-diaminobiphenyl, 2 , 2, 1 bis (trifluoromethyl) 4, 4'-diaminobiphenyl, 3, 7-diamino-dimethyldibenzothiophene 5, 5 'dioxide, 4, 4'-diaminobenzophenone, 4, 4' bis ( And aromatic diamines such as 4-aminophenol) sulfide, 4,4′-diaminobenzaldehyde, 1,4 bis (4 aminophenoxy) benzene, and the like.
- Such a polyimide resin is described in, for example, Japanese Patent
- the polyimide resin Due to its structure, the polyimide resin has properties such as high strength, high heat resistance, and low relaxation properties, which are suitable for belt materials used in applications that require precision rotation. Therefore, when a polyimide resin is used for the base material 2, the polyimide resin functions as a tension holder having a low elongation and a high strength, and the belt 1 can be precisely driven.
- the polyimide resin is preferably thermosetting! /.
- the belt 1 When the belt 1 is used as an intermediate transfer belt, it is necessary to disperse a conductive agent in the polyimide resin in order to impart semiconductivity. This is because the intermediate transfer belt carries toner on its surface using static electricity, but at this time, if the conductivity is low, charging is not sufficient to carry the toner, and if the conductivity is high, the toner is scattered. It is because it will do. Therefore, in the intermediate transfer belt, it is necessary to control the surface resistance value of the belt in a range of generally 10 9 to; 10 U Q / cm 2 .
- conductive or semiconductive fine powder can be used as the conductive agent.
- conductive carbon materials such as carbon black and graphite, metals or alloys such as aluminum and copper alloys
- conductive metal oxides such as tin oxide, zinc oxide, antimony oxide, indium oxide, potassium titanate, antimony tin monoxide complex oxide (ATO), indium oxide tin oxide complex oxide (ITO), etc. These may be used alone or in combination of two or more.
- the content of the conductive material is not particularly limited as long as it is arbitrarily selected according to the type of the conductive agent and the surface resistance value of the belt.
- the content is preferably about 15 to 20% by weight based on 100% by weight of the polyimide resin.
- the thickness of the substrate 2 is 50 to 200 m, preferably 100 to; As a result, the rigidity of the belt 1 is increased and the load in the thrust direction generated when the belt 1 rotates is also increased.
- the polyimide resin is excellent in mechanical properties. For this reason, for example, when the belt 1 is used as an intermediate transfer belt, deformation of the belt due to the pressing force when the intermediate transfer belt is pressed against the image carrier with a bias roll is small. In this state, when the toner image is electrostatically transferred to the intermediate transfer belt by applying an electric field, the load of the pressing force by the bias roll is concentrated in the primary transfer portion. As a result, the toner image aggregates and the charge density becomes high, so that discharge may occur inside the toner layer and change the polarity of the toner. Due to these factors, the image quality defect of the holo character where the line image is missing occurs. As a measure for preventing this image quality defect, an elastic layer 3 is provided on the substrate 2. In other words, when the elastic layer 3 is provided on the base material 2, the surface of the belt 1 becomes flexible.
- the belt 1 When the belt 1 is used as a fixing belt, it is necessary to provide the elastic layer 3 on the substrate 2 for the following reason. That is, the belt is used for fixing the toner by applying heat and pressure to the printing body (for example, paper) together with the roller in the fixing unit. At this time, if the rigidity of the belt surface is too high, the toner particles are crushed and the resolution of the image quality is lowered. As a countermeasure against this, an elastic layer 3 is provided on the substrate 2.
- the printing body for example, paper
- the elastic modulus of the elastic layer 3 needs to be arbitrarily adjusted according to the application and the device.
- the elastic layer 3 is made of an imide-modified elastomer.
- the elastic modulus of the imide-modified elastomer can be easily adjusted by adjusting the content of the imide component in the elastomer. Therefore, the elastic layer 3 made of the imide-modified elastomer can adjust its elastic modulus to a desired value.
- elastic modulus include, but are not particularly limited, but is generally adjusted to be in the range of 1. 0 X 10 6 ⁇ 6. 0 X 10 7 Pa. Further, since the elastic layer 3 made of imide-modified elastomer is excellent in affinity with the base material 2 made of polyimide resin, it is possible to suppress a decrease in durability due to peeling of both. Further, the belt 1 in which the elastic layer 3 made of imide-modified elastomer is provided on the base material 2 made of polyimide resin has heat resistance required for, for example, a fixing belt.
- the elastic modulus is a dynamic viscoelasticity measuring device as will be described later. This is the value of storage elastic modulus E 'at 50 ° C obtained by measuring with.
- the imide-modified elastomer means an elastomer having an imide component.
- the elastomer component in the elastomer include a polyurethane, an unsaturated olefin-based oligomer, an acrylic oligomer, a fluororubber-based oligomer, and a silicone-based oligomer.
- the imide component include alicyclic monomers, heterocyclic monomers, phenyl ether monomers, alkyl side chain monomers, and the like.
- an imide-modified polyurethane elastomer (hereinafter, also referred to as “polyimide urethane elastomer” or “PIUE”) that uses polyurethane as an elastomer component.
- PIUE expressed by the following general formula (I) (hereinafter also referred to as “PIUE (I)”) is preferable because flexibility is excellent in terms of adhesion to the base material 2 and the like. Yes.
- R represents a divalent organic group containing an aromatic ring or an aliphatic ring.
- R is the weight
- Bivalent organic group having an average molecular weight of 100 to 10,000; R is an aromatic ring, aliphatic ring or
- R is a tetravalent organic group containing 4 or more carbon atoms.
- n represents an integer of 1 to 100.
- m represents an integer of 2 to 100.
- PIUE (I) contains polyurethane as an elastomer component, and can introduce two imide units continuous in the main chain at a desired ratio (imide fraction) while controlling the distribution thereof. Therefore, the elastic modulus can be easily adjusted, and flexibility has the effect of being excellent in adhesion to the substrate 2 and the like.
- Power, KARU PIUE (I) is a novel compound not yet described in the literature.
- R includes an aromatic ring or an aliphatic ring.
- the R is a divalent organic compound having a weight average molecular weight of 100 to 10,000, preferably 300 to 5,000.
- the organic group includes, for example, a polyol (b) that can form a urethane prepolymer (c) together with a diisocyanate (a) according to the reaction process formula (A).
- a polyol b
- a diisocyanate a
- Examples include residues other than two hydroxyl groups (OH).
- R represents a divalent organic group containing an aromatic ring, an aliphatic ring or an aliphatic chain.
- Examples of the organic group include an aromatic diamine compound having 6 to 27 carbon atoms and a chain number of 6 to 24 carbon atoms that can extend the urethane precursor (c) by a urea bond according to the reaction process formula (B) described later.
- the aliphatic chain includes one having 1 carbon.
- R represents a tetravalent organic group containing 4 or more carbons, and the organic group
- Examples include a residue of at least one tetracarboxylic dianhydride (f) selected from dianhydrides.
- ⁇ is up to 100, preferably (an integer from 2 to 50. mi is from 2 to 00, preferably (an integer from 2 to 50).
- PIUE represented by the general formula (I) include a PIUE represented by the following formula (1).
- the PIUE represented by the general formula (I) is a tetracarboxylic acid obtained by extending a urethane prepolymer having an isocyanate group at both molecular ends obtained from diisocyanate and polyol with a diamine compound by a urea bond.
- the block copolymer is preferably a dianhydride and an imide unit introduced into the urea bond portion.
- Such a PIUE can be manufactured through the following reaction process formulas (A) to (C).
- a urethane prepolymer (c) having an isocyanato group at both molecular ends is first obtained from diisocyanate Ha) and polyol (b). Since PIUE (I) uses this urethane prepolymer (c) as an elastomer component, the elastic modulus in the rubbery region (near room temperature) is low, making it more elastic, and this urethane prepolymer ( By controlling the molecular weight of c), it is possible to introduce two imide units continuous in the main chain at a desired ratio while controlling their distribution.
- diisocyanate Ha for example, 2,4-tolylene diisocyanate (TDI), 2,6-tolylene diisocyanate HTDI), 4, 4'-diphenyl Methane diisocyanate (HMDI), polymeric MDI (Cr.
- MDI dianisidine diisocyanate
- DAD L diphenyl ether diisocyanate
- PEDI vitrylene diisocyanate
- HTODI naphthalene Isocyanate
- NDI Hexamethylene diisocyanate
- HHMDI Hexamethylene diisocyanate
- IPDI Isophorone diisocyanate
- LLI Lysine diisocyanate methyl ester
- HMDI Metaxylylene diisocyanate
- TMDI 2, 4, 4-trimethinorehexamethylene diisocyanate
- TDDI dimer acid diisocyanate
- DDI isopropylidenebis (4-cyclohexylisocyanate) Anato )
- IPCI cyclohexylmethane diisocyanate
- TDI methylcyclohexane diisocyanate
- polystyrene resin examples include polyether polyols such as polypropylene glycol (PPG), polyoxytetramethylene dallicol (PTMG), and polymer polyols; Polyester polyols such as: Polycarbonate polyols; Polybutadiene polyols; Acrylic polyols, and the like. These may be used alone or in combination.
- PPG polypropylene glycol
- PTMG polyoxytetramethylene dallicol
- Polyester polyols such as: Polycarbonate polyols; Polybutadiene polyols; Acrylic polyols, and the like. These may be used alone or in combination.
- the polyol (b) it is preferable to use a polyol dried under reduced pressure under conditions of 70 to 90 ° C .;! To 5 mmHg, about 10 hours to 30 hours.
- the weight average molecular weight of the polyol (b) is 100 to 10,000, preferably 300 to 5,000.
- the weight average molecular weight is a value obtained by measuring the polyol (b) by gel permeation chromatography (GPC) and converting the obtained measurement value to polystyrene.
- the reaction is performed by mixing the diisocyanate (a) and polyol (b) exemplified above at a predetermined ratio, and then at room temperature in an inert gas atmosphere such as argon gas for about 1 to 5 hours. It only has to react.
- the weight average molecular weight of the urethane prepolymer (c) obtained can be made to a predetermined value as described below.
- the weight average molecular weight of the urethane prepolymer (c) to be obtained is 300 to 50,000, preferably 500 to 45,000.
- PIUE (I) excellent in flexibility and adhesion to the substrate 2 can be obtained. it can.
- the weight average molecular weight force S of the urethane prepolymer (c) is smaller within the above range, harder PIUE (I) can be obtained.
- the molecular weight is less than 300, PIUE (I) becomes too hard and flexibility may be lowered.
- PIUE (I) becomes too soft, and the strength and heat resistance may be reduced. Therefore, it is not preferable.
- the weight average molecular weight is a value obtained by measuring the urethane prepolymer (c) by GPC and converting the obtained measurement value into polystyrene.
- a polyurethane-urea compound (e), which is an imide precursor is synthesized according to the reaction process formula (B). That is, the urethane prepolymer (c) is chain-extended by a urea bond with the diamine compound (d) to obtain a polyurethane-urea compound (e).
- diamine compound (d) for example, I, 4-diaminobenzene (another name: p-phenylenediamine, abbreviated: PPD), I, 3-diaminobenzene (also known as: m-dirangediamine, Abbreviation: MPD), 2, 4 Diaminotoluene (Alternative name: 2, 4 Tonorenediamine, Abbreviation: 2, 4-TDA), 4, 4, Diaminodiphenylmethane (Alternative name: 4, 4, Methylenedianiline, Abbreviation: MDA), 4,4, -diaminodiphenyl ether (also known as: 4,4, -oxydianiline, abbreviated: ODA, DPE), 3,4, -diaminodiphenyl ether (also: 3,4, oxydianiline, Abbreviations: 3, 4'-DPE), 3, 3, 1-dimethyl-1, 4, 4'-diaminobiphenyl (also known as:
- HMDA hexamethylenediamine
- the reaction is carried out by mixing the urethane prepolymer (c) and the diamine compound (d) exemplified above in an equimolar amount, preferably an NCO / NH ratio of about 1.0.
- Inactivity is carried out by mixing the urethane prepolymer (c) and the diamine compound (d) exemplified above in an equimolar amount, preferably an NCO / NH ratio of about 1.0.
- the solution polymerization reaction or bulk polymerization reaction may be performed at room temperature to 100 ° C, preferably 50 to;
- Examples of the solvent that can be used for the solution polymerization reaction include N, N dimethylacetamide, N methyl 2 pyrrolide (NMP), N hexyl 2 pyrrolidone, 1,3 dimethyl-2-imidazolidone, and the like.
- N, N-dimethylacetamide, N-methyl-2-pyrrolidone (NMP), N-xyl-2-pyrrolidone, 1,3-dimethyl-1-imidazolidone are preferred.
- These solvents are preferably used in accordance with a conventional method in which one or two or more types may be mixed and used after dehydration.
- PIUE (I) is synthesized according to the reaction process formula (C). That is, an imide unit is introduced into the urea bond portion with tetracarboxylic dianhydride (f) to obtain PIUE (I) which is a block copolymer.
- examples of the tetracarboxylic dianhydride (f) include pyromellitic anhydride. (PMDA), oxydiphthalic dianhydride (ODPA), biphenyl, 3, 4, 3, 4'-tetracarboxylic dianhydride (BPDA), benzophenone 3, 4, 3 ', 4'-tetracarboxylic acid Anhydride (BTDA), diphenylsulfone 3, 4, 3 ', 4'-tetracarboxylic dianhydride (DSDA), 4, 4'-one (2, 2 hexafluoroisopropylidene) diphthalic dianhydride (6FDA), m (p) Terferiru 3, 4, 3 ', 4'-tetracarboxylic dianhydride and other carbon number 6 to 18; aromatic tetracarboxylic dianhydride having 18; cyclobutane 1, 2 , 3, 4—tetra-force rubonic acid dianhydride, 1 carb
- the reaction is an imidization reaction between the polyurethane-urea compound (e) and the tetracarboxylic dianhydride (f).
- the imidation reaction may be performed in a solvent or without a solvent.
- the imidization reaction is performed in a solvent, first, the polyurethane-urea compound (e) and the tetracarboxylic dianhydride (f) exemplified above are added to the solvent at a predetermined ratio, and an argon gas or the like is added.
- Polyureta represented by the following formula (g) is allowed to react at 100 to 300 ° C, preferably 135 to 200 ° C, more preferably 150 to 170 ° C for about 1 to 10 hours in an inert gas atmosphere.
- a solution (PUA solution) containing amide acid (PUA) is obtained.
- the mixture of the polyurethane-urea compound (e) and the tetracarboxylic dianhydride (f) is obtained by mixing the diamine compound (d) and the tetracarboxylic acid used in the synthesis of the polyurethane-urea compound (e).
- Diamine compound (d): Tetracarboxylic dianhydride (f) 1: 2 ⁇ ;
- the imide unit can be reliably introduced into the urea bond.
- a solvent that can be used a solvent that can be used in the solution polymerization reaction of the above reaction process formula (B) It is possible to exemplify the same solvent as exemplified above.
- an imidization reaction may be performed in the solvent.
- the PUA solution obtained above is injected into, for example, a cylindrical mold, and 100 300 ° C, preferably ⁇ (135 135 C, more preferably ⁇ (150 ⁇ ; 170 C). Then, PUA is formed into a film by centrifugal molding while rotating the cylindrical mold at 100–2,000 rpm for 30 minutes to 2 hours.
- the film-like PUA (I) can be obtained by subjecting the film-like PUA to a heat treatment (dehydration condensation reaction).
- the heat treatment is preferably performed under conditions where PUA is not thermally decomposed, for example, 150 450 ° C under reduced pressure, preferably 150 250 ° C for 1 hour to 5 hours.
- PIUE (I) obtained as described above has a glass transition temperature (Tg) force of usually 30 60 ° C, high elasticity, and a wide temperature range in the rubbery elastic region. It becomes a thing. The following reason is guessed as this reason. That is, as described above, PIU E (I) can introduce two imide units continuous in the main chain at a desired ratio (imide fraction) while controlling the distribution thereof. Aggregation of hard segments consisting of units becomes uniform and strong. For this reason, PIUE (I) forms a more uniform and strong mixture phase separation structure, and the glass transition temperature is lowered, so that the temperature range of the rubber-like elastic region is widened.
- Tg glass transition temperature
- a weight average molecular weight of PIUE (I) (10,000-1000,000, preferably (50,000-800,000, more preferably 50,000-500,000).
- the weight average molecular weight (or the value obtained by measuring the PUA solution by GPC and deriving the obtained measured value from the value converted to polystyrene. Note that the PUA solution that is not PIUE (I) is measured by GPC. This is because PI UE (I) is insoluble in the GPC measurement solvent.
- the elastic modulus can be easily adjusted by adjusting the ratio of the imide component.
- the imide fraction is not particularly limited as long as it is arbitrarily selected according to the modulus of elasticity, but the lower limit is usually 25% by weight or less, preferably 15% by weight or less. Usually, 5% by weight or more is appropriate.
- the imide fraction is a value calculated from the charged amounts of raw materials, that is, diisocyanate (a), polyol (b), diamine compound (d) and tetracarboxylic dianhydride (f). Is a value calculated from the following formula ( ⁇ 1).
- W d Tetracarboxylic dianhydride charge (mol)
- the elastic layer 3 has a thickness of 50 to 1; 1, OOO ⁇ m, preferably 100 to 200 m. As a result, for example, the toner transfer effect is excellent. On the other hand, if the thickness of the elastic layer 3 is less than 50 m, the flexibility required for the elastic layer 3 is reduced, and if it is greater than 1,000 m, the total thickness of the belt increases and adversely affects the flexibility. Is not preferable.
- the releasable resin layer 4 is for imparting surface properties and toner releasability to the belt 1.
- fluororesin etc. are preferable in terms of releasability, heat resistance, bending resistance, etc.
- the fluororesin include tetrafluoroethylene resin (PTFE), tetrafluoro Examples include fluoroethylene / perfluoroalkoxyethylene copolymer (PFA) and tetrafluoroethylene / hexafluoropropylene copolymer (FEP). These can be used alone or in combination. May be.
- PTFE tetrafluoroethylene resin
- PFA perfluoroalkoxyethylene copolymer
- FEP tetrafluoroethylene / hexafluoropropylene copolymer
- the releasable resin layer 4 is provided on the elastic layer 3 with a thickness that ensures the releasability of the toner and paper powder and the like and does not impair the flexibility of the elastic layer 3.
- the specific thickness of the releasable resin layer 4 is 5 to 50 111, preferably 10 to 30 111.
- the thickness of the releasable resin layer 4 is less than 5 m, sufficient releasability cannot be obtained and durability is inferior. If it is larger than 50 mm, the flexibility of the elastic layer 3 may be impaired.
- the conductive agent described above may be dispersed in the releasable resin layer 4 to prevent an offset due to charging! /.
- the belt 1 is preferably used as an intermediate transfer belt or a fixing belt as a seamless belt because the usefulness of the present invention is increased. Therefore, an embodiment of a method for producing the seamless belt 1 will be described in the case where PIUE (I) is used for the imide-modified elastomer constituting the elastic layer 3.
- the seamless belt 1 can be obtained, for example, by a centrifugal molding method. That is, first, a polyamic acid varnish (polyimide varnish), which is a polyimide resin precursor, and the PUA solution described above are prepared.
- Polyimide varnish is not particularly limited.
- commercially available products can be used as products manufactured by Ube Industries, Ltd. Name "U varnish A” etc. are mentioned.
- the belt is used as an intermediate transfer belt, it is necessary to add a conductive agent to impart conductivity to the polyimide varnish.
- carbon black is blended as a conductive material, for example, carbon black is added in an amount of 10 to 30 parts by weight, preferably about 20 parts by weight with respect to 100 parts by weight of the polyimide resin, and then 30 minutes with a stirrer. Stir for ⁇ 2 hours, preferably about 1 hour, and defoaming to prepare a varnish solution for centrifugal molding.
- the solid content of the varnish solution is 10 to 30% by weight, preferably 15 to 25% by weight, more preferably about 18% by weight.
- the carbon black include trade name “Toka Black # 5500F” manufactured by Tokai Carbon Co., Ltd.
- the PUA solution is preferably prepared to have a solid content of 10 to 30% by weight, preferably about 20% by weight.
- the PUA solution is poured into a centrifugal molding machine heated to 110 to 130 ° C, preferably about 120 ° C.
- a mold release agent to the inner surface of the centrifugal molding machine drum, or to form a layer having a releasability with a resin, etc.
- Laminated film obtained as follows Can be easily removed from the centrifugal molding machine This is preferable.
- the PUA solution is charged while rotating the centrifugal molding drum at 400 to 600 rpm, preferably about 500 rpm, and the PUA solution is sufficiently stretched over the entire drum. After that, increase the rotation speed to 900 ⁇ ; 1, lOOrpm, preferably ⁇ 1, OOOrpm, heat treatment for 20-40 minutes, preferably about 30 minutes, then 50-70 ° C, preferably 60 ° Cool to about C to form a PUA film on the drum inner surface.
- the polyimide varnish prepared above is poured into the inner surface of the PUA film. After that, by rotating at a rotational speed of 50 to 200 rpm, preferably about lOO rpm, heating to 110 to 130 ° C, preferably about 120 ° C, and performing heat treatment for 30 to 60 minutes, preferably about 45 minutes.
- a laminated film (base material 2, elastic layer 3) is formed.
- the laminated film is removed from the drum, and in order to prevent deformation due to shrinkage, it is set in a mold that has been subjected to surface release treatment, and the surface is coated with a fluororesin, etc. Form 4. Thereafter, heat treatment is performed under reduced pressure at 300 to 400 ° C., preferably about 350 ° C. for 20 to 40 minutes, preferably about 30 minutes. Next, a seamless belt 1 is obtained by slitting the obtained finale to an appropriate size.
- the present invention is not limited to this. That is, for example, the cylindrical seamless base material 2 and the elastic layer 3 are prepared under the centrifugal molding conditions described above, and the cylindrical seamless releasable resin layer 4 is prepared by an extrusion molding method or the like. . These can be applied with one- or two-component silicone elastic adhesives, urethane elastic adhesives, sheet-like hot-melt silicone adhesives, silane-modified polyimide adhesives, etc.
- a seamless belt 1 may be obtained by integration.
- the force of the total thickness of the belt 1 being 100 to 150 m is preferable.
- a force S that makes the total thickness of the belt 1 200 to 300 mm 111 is preferable.
- the intermediate transfer belt is fixed. It is difficult to satisfy the mechanical properties required for a belt.
- the thickness is larger than these thicknesses, the belt surface stress is concentrated due to the deformation at the roll bending portion, which may cause problems such as cracks in the release resin layer 4.
- n represents an integer of 1 to 100.
- m represents an integer of 2 to 100.
- x represents an integer of 5 to 100;
- a sheet of 100 m in thickness was prepared in the same manner as in Synthesis Example 1 except that PMDA (m) 0.831 g added to the polyurethane-urea compound (1) solution was changed to 1.586 6 g.
- PIUE (2) was obtained (imide fraction: 25% by weight). With respect to the obtained PIUE (2), an IR spectrum was measured in the same manner as in Synthesis Example 1. The results are shown in Fig. 3.
- PIUE (1) (imide fraction 15 wt% ⁇ porosity 2.4 X 10 7 Pa) was used. A belt for an image forming apparatus was produced, and the peel strength between the substrate and the elastic layer was measured. ⁇ Production of belt for image forming apparatus>
- the PIUE solution obtained in Synthesis Example 1 (that is, the PUA solution before the dehydration condensation reaction in Synthesis Example 1) was treated at 120 ° C. for 30 minutes using a centrifugal molding machine to obtain a thickness. A 100 m PIUE film was obtained. Subsequently, a product name “U varnish A” manufactured by Ube Industries, Ltd. was injected into the inner surface of this PIUE film, and heat treated at 120 ° C. for 45 minutes to obtain a laminated film.
- the laminated film was removed from the drum, and placed in a mold and heat-treated at 350 ° C for 30 minutes.
- One side was polyimide
- the other side was an imide-modified polyurethane elastomer, that is, polyimide.
- a seamless belt for an image forming apparatus having a thickness of 20011 m composed of a base material made of resin and an elastic layer made of PIUE (1) provided on the base material was obtained.
- the peel strength of the image forming apparatus belt obtained above was measured.
- the measurement method is shown below, and the results are shown in Table 2.
- the image forming apparatus belt obtained above was punched into a strip of 10 mm width, and the peel strength between the substrate and the elastic layer was measured using a tensile tester “AG-2000G” manufactured by Shimadzu Corporation. The pulling speed was 50 mm / min.
- a film having a thickness of 100 m was obtained by heat-treating a product name “Utus A” manufactured by Ube Industries, Ltd. for 45 minutes at 120 ° C. using a centrifugal molding machine.
- a two-part curable silicone rubber “KE1300” manufactured by Shin-Etsu Silicone Co., Ltd. was injected into the inner surface of the film and heat treated at 120 ° C. for 3 hours to produce a laminated film.
- the film is then removed from the drum, heat-treated at 350 ° C for 30 minutes, put into a mold, and a base made of polyimide on one side and a silicone rubber on the other side, that is, a polyimide resin, is placed on the base.
- a seamless belt for an image forming apparatus having a thickness of 200 am and comprising an elastic layer having a silicone rubber force provided was obtained.
- the product name “Uusu A” manufactured by Ube Industries, Ltd. is used at 120 ° C using a centrifugal molding machine.
- a film having a thickness of 100 m was obtained by heat treatment for 5 minutes.
- a one-component curable silicone rubber “SE5060” manufactured by Toray Dow Cowing Co., Ltd. was injected into the inner surface of the film and heat treated at 60 ° C. for 3 hours to produce a laminated film.
- the laminated film is removed from the drum, and heat treated at 350 ° C for 30 minutes by placing it in a mold.
- the base is composed of polyimide on one side and silicone rubber on the other side, that is, a polyimide resin.
- a seamless belt for an image forming apparatus having a thickness of 200 m composed of an elastic layer made of silicone rubber provided thereon was obtained.
- the belt for an image forming apparatus of Example 1 in which the base material is made of polyimide resin and the elastic layer is made of imide-modified polyurethane elastomer is a separation of the base material and the inertial layer. It can be seen that the strength is higher than the belts for image forming apparatuses of Comparative Examples 1 and 2 in which the base material is made of polyimide resin and the elastic layer is made of silicone rubber. From this result, it can be said that when the elastic layer is made of an imide-modified elastomer having an imide component, the affinity with the base material made of polyimide resin is increased, so that it is possible to suppress a decrease in durability due to peeling of both.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Electrophotography Configuration And Component (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/441,849 US20090279925A1 (en) | 2006-09-19 | 2007-09-14 | Belt for image forming apparatus |
CN2007800300199A CN101501576B (zh) | 2006-09-19 | 2007-09-14 | 图像形成装置用带 |
EP07807332A EP2081087A1 (en) | 2006-09-19 | 2007-09-14 | Belt for image forming apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-253389 | 2006-09-19 | ||
JP2006253389A JP4485504B2 (ja) | 2006-09-19 | 2006-09-19 | 画像形成装置用ベルト |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008035625A1 true WO2008035625A1 (fr) | 2008-03-27 |
Family
ID=39200451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/067925 WO2008035625A1 (fr) | 2006-09-19 | 2007-09-14 | Bande pour un appareil de formation d'image |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090279925A1 (ja) |
EP (1) | EP2081087A1 (ja) |
JP (1) | JP4485504B2 (ja) |
KR (1) | KR100945179B1 (ja) |
CN (1) | CN101501576B (ja) |
TW (1) | TW200830064A (ja) |
WO (1) | WO2008035625A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008156560A (ja) * | 2006-12-26 | 2008-07-10 | Nitta Ind Corp | イミド変性エラストマーおよびカーボンナノチューブ配合ベルト |
JP2009051949A (ja) * | 2007-08-27 | 2009-03-12 | Nitta Ind Corp | イミド変性エラストマー |
US20100329751A1 (en) * | 2007-11-30 | 2010-12-30 | Gunze Limited | Semielectroconductive polyimide resin belt and process for producing semielectroconductive polyimide resin belt |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008163219A (ja) * | 2006-12-28 | 2008-07-17 | Nitta Ind Corp | カーボンナノチューブ配合ポリイミド成形体およびカーボンナノチューブ配合ベルト |
JP4953964B2 (ja) * | 2007-07-27 | 2012-06-13 | ニッタ株式会社 | 精密駆動用シームレスベルト |
JP5466422B2 (ja) * | 2009-04-30 | 2014-04-09 | 日東電工株式会社 | シームレスベルト及びその製造方法 |
US8422923B2 (en) * | 2010-08-26 | 2013-04-16 | Xerox Corporation | Phosphate ester polyimide containing intermediate transfer members |
US8507634B2 (en) * | 2010-12-22 | 2013-08-13 | Xerox Corporation | Polyimide intermediate transfer belt |
US8992643B2 (en) | 2010-12-30 | 2015-03-31 | Saint-Gobain Abrasives, Inc. | Imide cross-linked binders for abrasive articles |
JP5482772B2 (ja) * | 2011-12-12 | 2014-05-07 | コニカミノルタ株式会社 | ベルト部材、定着装置および画像形成装置 |
WO2015093000A1 (ja) * | 2013-12-17 | 2015-06-25 | キヤノン株式会社 | 電子写真用部材、定着装置及び、電子写真画像形成装置 |
US9989877B2 (en) * | 2016-10-04 | 2018-06-05 | Konica Minolta, Inc. | Transfer belt and image formation apparatus |
JP2020173347A (ja) * | 2019-04-11 | 2020-10-22 | 富士ゼロックス株式会社 | ポリイミド系樹脂フィルム、無端ベルト、中間転写ベルト、及び画像形成装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2560727B2 (ja) | 1987-06-12 | 1996-12-04 | 東レ株式会社 | 中間転写体 |
JPH1115303A (ja) | 1997-06-24 | 1999-01-22 | Showa Electric Wire & Cable Co Ltd | 定着部用フィルム及びトナー画像定着装置 |
JPH11199669A (ja) * | 1998-01-14 | 1999-07-27 | Ajinomoto Co Inc | 変成ポリイミド樹脂及びこれを含有する熱硬化性樹脂組成物 |
JP2001109276A (ja) | 1999-10-07 | 2001-04-20 | Bando Chem Ind Ltd | 電子写真装置用半導電性ベルト |
JP2003076241A (ja) * | 2001-09-06 | 2003-03-14 | Tokai Rubber Ind Ltd | Oa機器用ウレタンウレア部材 |
JP2003131492A (ja) | 2001-10-26 | 2003-05-09 | Kyocera Corp | 画像形成装置 |
JP2006072341A (ja) * | 2004-08-04 | 2006-03-16 | Sumitomo Electric Fine Polymer Inc | 画像形成装置用転写ベルト |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1770137C3 (de) * | 1968-04-05 | 1981-04-02 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von hochmolekularen Polyimiden |
US3890448A (en) * | 1971-10-05 | 1975-06-17 | Toyo Seikan Kaisha Ltd | Heatable package of food |
US3787367A (en) * | 1972-11-29 | 1974-01-22 | Upjohn Co | Soluble copolyimides |
JP3734739B2 (ja) * | 2000-11-14 | 2006-01-11 | 住友ゴム工業株式会社 | 導電性ベルト |
CN1757001A (zh) * | 2003-01-07 | 2006-04-05 | 松下电器产业株式会社 | 带、磁辊及其制造方法以及使用它们的成像装置 |
JP4534696B2 (ja) * | 2003-10-15 | 2010-09-01 | 東海ゴム工業株式会社 | 半導電性シームレスベルト |
TWI370147B (en) * | 2004-09-10 | 2012-08-11 | Ube Industries | Modified polyimide resin and curable resin composition |
US20070282173A1 (en) * | 2006-05-31 | 2007-12-06 | Bily Wang | Vital sign sending method and a sending apparatus thereof |
JP2008068429A (ja) * | 2006-09-12 | 2008-03-27 | Fuji Xerox Co Ltd | 記録装置 |
-
2006
- 2006-09-19 JP JP2006253389A patent/JP4485504B2/ja active Active
-
2007
- 2007-09-14 KR KR1020087022762A patent/KR100945179B1/ko not_active IP Right Cessation
- 2007-09-14 EP EP07807332A patent/EP2081087A1/en not_active Withdrawn
- 2007-09-14 CN CN2007800300199A patent/CN101501576B/zh not_active Expired - Fee Related
- 2007-09-14 WO PCT/JP2007/067925 patent/WO2008035625A1/ja active Application Filing
- 2007-09-14 US US12/441,849 patent/US20090279925A1/en not_active Abandoned
- 2007-09-19 TW TW96134804A patent/TW200830064A/zh unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2560727B2 (ja) | 1987-06-12 | 1996-12-04 | 東レ株式会社 | 中間転写体 |
JPH1115303A (ja) | 1997-06-24 | 1999-01-22 | Showa Electric Wire & Cable Co Ltd | 定着部用フィルム及びトナー画像定着装置 |
JPH11199669A (ja) * | 1998-01-14 | 1999-07-27 | Ajinomoto Co Inc | 変成ポリイミド樹脂及びこれを含有する熱硬化性樹脂組成物 |
JP2001109276A (ja) | 1999-10-07 | 2001-04-20 | Bando Chem Ind Ltd | 電子写真装置用半導電性ベルト |
JP2003076241A (ja) * | 2001-09-06 | 2003-03-14 | Tokai Rubber Ind Ltd | Oa機器用ウレタンウレア部材 |
JP2003131492A (ja) | 2001-10-26 | 2003-05-09 | Kyocera Corp | 画像形成装置 |
JP2006072341A (ja) * | 2004-08-04 | 2006-03-16 | Sumitomo Electric Fine Polymer Inc | 画像形成装置用転写ベルト |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008156560A (ja) * | 2006-12-26 | 2008-07-10 | Nitta Ind Corp | イミド変性エラストマーおよびカーボンナノチューブ配合ベルト |
JP2009051949A (ja) * | 2007-08-27 | 2009-03-12 | Nitta Ind Corp | イミド変性エラストマー |
US20100329751A1 (en) * | 2007-11-30 | 2010-12-30 | Gunze Limited | Semielectroconductive polyimide resin belt and process for producing semielectroconductive polyimide resin belt |
US8506848B2 (en) * | 2007-11-30 | 2013-08-13 | Gunze Limited | Semielectroconductive polyimide resin belt and process for producing semielectroconductive polyimide resin belt |
Also Published As
Publication number | Publication date |
---|---|
KR20090014141A (ko) | 2009-02-06 |
CN101501576A (zh) | 2009-08-05 |
KR100945179B1 (ko) | 2010-03-03 |
JP2008076560A (ja) | 2008-04-03 |
CN101501576B (zh) | 2012-03-14 |
TW200830064A (en) | 2008-07-16 |
JP4485504B2 (ja) | 2010-06-23 |
EP2081087A1 (en) | 2009-07-22 |
US20090279925A1 (en) | 2009-11-12 |
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