WO1995030936A1 - Resine pour toner et procede de production de ladite resine - Google Patents
Resine pour toner et procede de production de ladite resine Download PDFInfo
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- WO1995030936A1 WO1995030936A1 PCT/JP1995/000784 JP9500784W WO9530936A1 WO 1995030936 A1 WO1995030936 A1 WO 1995030936A1 JP 9500784 W JP9500784 W JP 9500784W WO 9530936 A1 WO9530936 A1 WO 9530936A1
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- resin
- component
- toner
- toner according
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08706—Polymers of alkenyl-aromatic compounds
- G03G9/08708—Copolymers of styrene
- G03G9/08711—Copolymers of styrene with esters of acrylic or methacrylic acid
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
- G03G9/08791—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by the presence of specified groups or side chains
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
- G03G9/08795—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by their chemical properties, e.g. acidity, molecular weight, sensitivity to reactants
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
- G03G9/08797—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by their physical properties, e.g. viscosity, solubility, melting temperature, softening temperature, glass transition temperature
Definitions
- the present invention relates to a resin useful as a dry toner used for a printer, a copying machine, a facsimile machine, and the like in electrophotography and electrostatic printing, and a method for producing the same.
- the present invention particularly relates to a resin for toner having excellent fixability, non-offset property, anti-blocking property and image stability, and a method for producing the same. Background art
- the secondary-agglomerated polymer has a large amount of a dispersant adhered to its surface, which makes it difficult to wash and remove the dispersant, resulting in poor image stability. Disclosure of the invention
- the present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a toner having excellent fixing properties, non-offset properties, blocking resistance, and image stability.
- An object of the present invention is to provide a toner resin suitable for the above and a method for producing the same.
- aromatic vinyl units acryl-based or methacryl-based compounds (hereinafter, for simplicity, these are collectively referred to as (meth) acryl-based compounds) units.
- the present inventors have also found that the above object can be achieved by using a polymer having specific physical properties as a resin for toner, which contains a polyfunctional compound unit as a polymer component, and has completed the present invention.
- the present invention relates to a polymer comprising (a) a unit of an aromatic vinyl component, (b) a unit of a (meth) acrylic compound component, and (c) a unit of a polyfunctional compound component. It contains 5 to 60% of tetrahydrofuran (hereinafter referred to as THF) insoluble matter and has a weight average polymerization degree Pw of 1
- THF tetrahydrofuran
- the present invention provides a toner resin comprising a polymer having a maximum molecular weight of 20,000 or less in a molecular weight distribution by gel permeation chromatography (hereinafter, referred to as GPC) of a THF-soluble component of not more than 80.
- GPC gel permeation chromatography
- the resin for a toner comprises a mixture containing an aromatic vinyl component, a (meth) acrylic compound component, and a polyfunctional compound component according to the following formulas (I) and (I). It can be produced by suspension polymerization under conditions that satisfy the following conditions.
- the resin for toner of the present invention comprises a polymer obtained by polymerizing (a) an aromatic vinyl component, (b) a (meth) acrylic compound component, and (c) a polyfunctional compound component. .
- aromatic vinyl component (a) used in the present invention examples include styrene, 0-methylstyrene, m-methylstyrene, p-methylstyrene, and p-methoxystyrene.
- Styrene is especially preferred. These aromatic vinyls alone They may be used, or two or more kinds may be used in combination.
- (b) includes, for example, acrylic acid or methacrylic acid (hereinafter collectively referred to as (meta) acrylic acid for simplicity), and (methyl) ethyl acrylate , (Meth) methyl acrylate, n-butyl (meth) acrylate, isoptyl (meth) acrylate, propyl (meth) acrylate, (meth) acryl 2-Ethylhexyl acrylate, stearyl (meth) acrylic acid, lauryl (meth) acrylate, (meth) acrylic acid 2—ethoxyquinethyl, (meth) acryl 2-Methoxyethyl, (meth) acrylic acid 2-Butoxyl, glycidyl methacrylate, cyclohexyl methacrylate, getylaminoethyl methacrylate And dimethylaminoethyl methacrylate.
- Menu is among those Yuku Li Le acid, Metaku Li Le methyl and (main evening)
- the polyfunctional compound component (c) used in the present invention is a component that gives crosslinking to the obtained resin, and is typically a compound having two or more ethylenically unsaturated groups in one molecule.
- examples of such compounds include aromatic divinyl compounds such as divinylbenzene and divinylnaphthalene, ethylene glycol di (meth) acrylate, and divinyl methacrylate.
- the amount of the unit of the aromatic vinyl component (a) and the unit of the (meth) acrylic compound component (b) in the toner resin is such that the Tg of the resin is 50 to 70 ° C.
- the unit of the aromatic vinyl component (a) is at least 50% by weight, preferably 50% by weight, based on the total amount of the units of the (meth) acrylic compound component (b). It is necessary that it be contained in an amount of at least weight%. This is because when the content of the aromatic vinyl component (a) unit is less than 50% by weight, the moisture resistance of the toner decreases.
- the content of the aromatic vinyl component (a) unit in the THF-insoluble component and the THF-soluble component constituting the toner resin is preferably equal. Further, in the THF-insoluble portion and the THF-soluble portion of the resin, the content of the aromatic vinyl component (a) unit and the aromatic vinyl component
- the (a) unit, the (meth) acrylic compound component (b) unit and the multifunctional compound component (c) unit have the same composition ratio. This is because during the kneading of the toner, the mixing property between the THF-insoluble component and the THF-soluble component is increased, and the effect of increasing the image stability is obtained.
- the amount of the polyfunctional compound component (c) unit is determined based on the aromatic vinyl component.
- the THF-insoluble content is 5 to 60%, preferably 10 to 50%, more preferably 10 to 40%, and the weight average polymerization degree Pw is 180 or less, preferably. Or 160 or less, and It is preferably 100 or less, and the maximum peak molecular weight force in the molecular weight distribution of THF-soluble components by GPC is 20,000 or less, preferably 18,000 or less, more preferably 10,000 or less.
- a toner using a resin having a THF insoluble content of less than 5% has poor non-offset properties, while a toner using a resin exceeding 60% has poor fixing properties.
- Toner using a resin having a maximum peak molecular weight of more than 20,000 in the molecular weight distribution of THF-soluble components by GPC has a low fixability.
- the weight average polymerization degree Pw is particularly important from the viewpoint of the fixability of the toner, and the weight average polymerization degree Pw needs to be 180 or less. This is because if the weight average degree of polymerization Pw exceeds 180, the fixability of the toner will decrease, and it is preferably 160 or less.
- the weight average degree of polymerization Pw is the weight average degree of polymerization of the linear portion when the reaction rate of the above components (a) to (c) is 100%, and is calculated by the following formula. You can ask.
- the value of the weight-average degree of polymerization Pw corresponding to the THF-insoluble component in order to improve the fixing property and the non-offset property. That is, when the THF-insoluble content is less than 40%, the range of Pw ⁇ — 3.25X + 180 is satisfied, and when the THF-insoluble content is 40% or more, the range is Pw ⁇ -0.25x +60.
- X is preferably a weight average polymerization degree Pw that satisfies the THF insoluble content (%).
- the glass transition temperature Tg of the resin for a toner is preferably in the range of 50 to 70 ° C, more preferably 53 to 67 ° C, and more preferably 55 to 65 ° C. This is because toners that use a resin with a Tg of less than 50 ° C fuse the toner during the charging process and cause deterioration of the image, or the toner adheres to the developing roll and causes roll contamination. This is because toner using a resin having a temperature higher than 70 ° C. tends to have low fixability.
- the softening temperature of this resin is preferably 110-190 ° C, more preferably U 5-185 ° C, more preferably 120-155. C range. This is because toners using a resin with a softening temperature of less than 110 ° C have improved fixability, but the cohesive strength of the resin is extremely reduced, and sufficient non-offset properties tend not to be obtained. On the other hand, a toner using a resin having a temperature of more than 190 ° C. has an improved non-offset property, but has a tendency to extremely decrease the fixing property.
- the acid value is preferably in the range from 0.1 to 20 mg KOH / g, more preferably from 0.1 to 19 mg KOH. This is because a resin having an acid value of less than 0.1 mgKOHZ g is very difficult to produce, while a toner using a resin exceeding 20 mgKOH tends to have reduced moisture resistance.
- the amount of the residual monomer is preferably in the range of 10 ppm or less, more preferably 600 ppm or less, more preferably 200 ppm or less, and particularly preferably 100 ppm or less.
- toner using a resin whose residual monomer content exceeds 100 ppm tends to generate odor during melting and kneading during toner formation and heating during copying, etc., and image stability tends to decrease. That's why.
- the secondary agglomerates of this resin on a 16 mesh screen are preferably 5% by weight or less, more preferably 4% by weight or less. This is because a toner using a resin in which the secondary aggregates on the 16-mesh nets exceed 5% by weight tends to easily generate capri in an image.
- the storage elastic modulus (G ′) of the toner resin is 4,000 or more, and the loss elastic modulus (G ⁇ ) is 4,000. It is preferable that Tan ⁇ 5 (the value obtained by dividing the loss modulus by the storage modulus (G (ZG ′)) is less than 1.
- a toner using a resin having a storage modulus of less than 4,000 has poor non-offset properties, and a particularly preferred storage modulus is 5,000 or more. Further, a toner using a resin having a loss elastic modulus of less than 4,000 has poor fixability, and a particularly preferred loss elastic modulus is 4,500 or more. Further, a toner using a resin having a TanS of more than 1.0 has poor fixability, and particularly preferable Tan5 is 0.9 or less.
- the storage elastic modulus (G ′ :), loss elastic modulus (G ′′), and Tan 5 used in the present invention were measured using a rheometer RDA700 manufactured by Rheometrics Co., Ltd. This is the value obtained by measuring viscoelasticity at a temperature of 175 to 177 ° C, a frequency of 1 0.2, and a strain of 0.28%.
- the resin for toner of the present invention having the above properties is produced by a suspension polymerization method.
- the method for producing the resin for toner include a solution polymerization method, an emulsion polymerization method, and a bulk polymerization method, in addition to the suspension polymerization method.
- the solution polymerization method it is difficult to remove the solvent from the solvent, so that the remaining solvent emits an odor, and the image stability deteriorates.
- a large amount of an emulsifier remaining in the obtained resin lowers the moisture resistance, and in the bulk polymerization method, there are disadvantages such as difficulty in controlling the heat generated by the polymerization and non-industrial use. Resin cannot be manufactured.
- the above polymerization components (a) to (c), a polymerization initiator, an emulsifier, an emulsification aid and deionized water are charged into a reaction vessel and suspension polymerization is performed.
- suspension polymerization the relationship between the saturated vapor pressure P 0 (kgZ cni 2 ) of water at the reaction temperature TC) and the reaction pressure P (kg / cm 2 ) is expressed by the following formulas (I) and (H). It is important to control to satisfaction.
- the reaction temperature T represented by the above formula (E) is at least 100 e C, is favored properly is 105 ° C or higher. If the reaction temperature is lower than 100 ° C, the polymer molecular weight increases, and the toner fixability deteriorates.
- the temperature rising time from room temperature to the reaction temperature be in the range of 20 to 90 minutes. This is because resin crosslinking was not sufficient in less than 20 minutes, and it was not possible to decrease the molecular weight of the resin if the temperature was increased for more than 90 minutes.
- a peroxide-based polymerization initiator is preferable.
- the peroxide polymerization initiator used is preferable.
- peroxide-based polymerization initiators examples include lauryl oxide (62 ° C), melperoxy octate (68 ° C), and benzoyl peroxide (74). C), t-butyl peroxy (2-ethylhexanoate) (72.5.
- the temperature in parentheses indicates a temperature of 10 hours and a half life.
- lauryl peroxide, benzoyl baroxide, t-butyl baroxy isopropyl carbonate, and t-butyl baroxy benzoate are preferable. used.
- polymerization initiators may be used alone or in combination of two or more.
- the use of two polymerization initiators having different half-life temperatures in combination reduces the residual monomers and reduces the glass transition of the resin. It is particularly preferable because it has the effect of increasing the temperature.
- the amount of the polymerization initiator used is not particularly limited, but is preferably in the range of 1.5 to 10% by weight, more preferably 1.5% by weight, based on the total amount of the above-mentioned polymerization components (a) to (c). In the range of ⁇ 9% by weight.
- a dispersant used in ordinary suspension polymerization can be used.
- examples thereof include polyvinyl alcohol, sodium polyacrylate-based dispersants, and polyether-based dispersants.
- a dispersing aid used in ordinary suspension polymerization can be used. Examples of such a dispersing aid include sodium sulfate, sodium carbonate, calcium carbonate, and sulfuric acid. Manganese, aqueous hydrogen peroxide, boric acid and the like can be mentioned.
- deionized water is preferably used as a dispersion medium for the polymerization component, and the amount of deionized water used for the polymerization component is preferably in the range of 1.2 to 2.5 by weight. And more preferably in the range of 1.4 to 2.3.
- an alkali treatment at a temperature of 85 ° C or more, particularly 88 ° C or more. This is effective for reducing benzoic acid caused by the polymerization initiator and improving the stability of charging of the resin.
- the alkali used include alkali metal hydroxides such as lithium, sodium, potassium, and rubidium, and particularly preferably sodium hydroxide.
- the amount of alkali used is preferably 0.1 to 2% by weight, particularly preferably 0.3% by weight, based on the total amount of the aromatic vinyl component (a) and the (meth) acrylic compound component (b). ⁇ 1.5% by weight.
- distillation is carried out before or at the same time as the alkali treatment, and the remaining monomers are mixed with deionized water at a temperature of 10 CTC or more. You can distill outside.
- the amount distilled off by distillation ranges from 5 to 30% by weight, particularly preferably from 10 to 25% by weight, based on the amount of deionized water used in the suspension polymerization. .
- the alkali-treated beaded polymer is sufficiently washed with deionized water, dehydrated, and dried.
- the polymerization is a one-stage polymerization, the amount of the residual monomer in the obtained resin is reduced to about 100 ppm or less, so that the melting and kneading at the time of forming the toner and the heating during the copying and the like are performed. In this case, a odor is not generated, and a toner having excellent image stability can be obtained.
- 0.5 g of the resin is placed in 50 ml of THF, dissolved by heating at 70 ° C for 3 hours, filtered through a glass filter lined with cerite (manufactured by Johns-Manville Sales Co., Ltd., 545), and dried at 80 ° C in a vacuum dryer. The value obtained by dividing the weight when the sample was sufficiently dried by the initial weight was used.
- the weight average degree of polymerization Pw was determined by calculation using the following formula (II).
- Pc is the reaction rate of the components (a) to (c), and A is the molar part of the component (a), B is the molar part of the component (b), and C is the molar part of the component (c). This is the value calculated by the following equation (IV).
- a sample obtained by dissolving and extracting a resin with a solvent (THF) was used as a sample.
- Tg tangent line of the endothermic curve near Tg measured at a temperature rise of 10 ° CZ and the contact point with the baseline were defined as Tg.
- the temperature at which half of the sample flowed out under the condition of 1.0 g was defined as the softening temperature (° C).
- the resin was dissolved and heated in toluene, cooled, and titrated with a K0H solution.
- a resin sample (50 g) was placed on a 16-mesh sieve and gently shaken for about 4 hours, and the value obtained by dividing the weight of the polymer remaining on the mesh of the 16-mesh sieve by the initial weight was used.
- the temperature in the reaction system was lowered to 90 ° C, the inside of the reaction vessel was brought to normal pressure, the stirring speed was set to 400 rpm, and the reaction system was heated again, and the temperature in the reaction system was raised to 100 ° C. Then, a mixture of deionized water volatilized from the reaction system and the remaining monomer was distilled off to the outside of the reaction system. About 2 hours after the start of distillation, when the amount of distillate reached 44 parts, the temperature in the reaction system was lowered to 90 ° C and maintained, and 0.5 parts of sodium hydroxide was removed. I put it in. About 60 minutes after the introduction of the sodium hydroxide, the temperature of the reaction system was cooled to room temperature, and the number of revolutions was set to 100 rpm.
- the resin beads were taken out of the reaction vessel, thoroughly washed with deionized water, dehydrated, and dried for about 48 hours in a drier held at 50 to obtain resins R-1 to R-12. .
- Table 2 shows the obtained characteristic values of R-1 to R-12.
- the content of the component (a) and the ratio of each component were the same between the THF-soluble component and the THF-insoluble component, and were the same as the polymerization composition.
- the obtained toner mass is coarsely pulverized and finely pulverized with a jet mill, and then the toner particle size is adjusted using a classifier, and the toner particles having a particle size of 5 to 20 ⁇ m are obtained.
- Got T-12 Table 3 shows the evaluation results of these toners II-1 to II-12.
- Example 1 The same operations as in Example 1 were carried out except that the polymerization composition and the polymerization conditions were as shown in Table 4, to obtain resins R-13 to R-17.
- Table 5 shows the characteristic values of Resins R-13 to R-17.
- the content of the component (a) and the proportion of each component were the same between the THF-soluble component and the THF-insoluble component, and were the same as the polymerization composition.
- Example 6 shows the results.
- resin R-13 to R-17 is used as toner In this case, it was found that the toner had excellent fixing properties, non-offset properties, anti-blocking properties and image stability.
- Example 1 The same operations as in Example 1 were carried out except that the polymerization composition and the polymerization conditions were as shown in Table 7, to obtain resins R-18 to R-25.
- Table 8 shows the characteristic values of Resins R-18 to R-25.
- Example 9 shows the results.
- Resin R-18 had poor image stability of the toner due to the large amount of secondary aggregates on the 16 mesh screen.
- Resin R-19 was poor in toner fixability due to high Tg, molecular weight, THF-insoluble content and softening temperature.
- Resin R-20 had a low softening temperature and a low THF insoluble content, resulting in poor non-offset properties of the toner.
- Resin R-21 had poor toner blocking resistance due to low Tg.
- Resin R-22 had a high Tg, so the toner fixability was poor.
- Resin R-23 had a low THF-insoluble content and a high weight-average degree of polymerization Pw, and thus had poor non-offset properties and fixability.
- Resin R-24 had poor fixability due to its high molecular weight and resin R-25 due to its high softening temperature and THF-insoluble content.
- Parts (parts) (parts) (parts) (parts) (parts) (parts) (parts) (.C) (kg / cm 2 ) (kg / cm 2 )
- Example 2 The same operations as in Example 2 were carried out except that the polymerization composition and the polymerization conditions were as shown in Table 10, to obtain resins R-26 to R-27.
- Table 11 shows the characteristic values of the resins R-26 to R-27. .
- Example 12 shows the results.
- Resin R-26 has a high acid value and is susceptible to humidity, resulting in poor toner image stability.
- the resin R-27 had a low THF insoluble content and a low softening temperature, so that the non-offset property of the toner was poor.
- a mixture of 70 parts of styrene, 20 parts of ⁇ -butyl acrylate, 10 parts of ⁇ -methylstyrene, and 8 parts of benzoyl baroxide was dropped into 200 parts of toluene having a boiling point over 5 hours. Thereafter, polymerization was carried out for 3 hours while maintaining the temperature below the boiling point. Thereafter, vacuum drying was performed to remove toluene, thereby obtaining a low molecular weight polymer. The content of the aromatic vinyl component in the THF-soluble matter of this low molecular weight polymer was 80% by weight.
- the content of the aromatic vinyl component in the THF-soluble component and the THF-insoluble component of the resin R-44 was 76.4% and 42.4%, respectively.
- Example 2 the same operation as in Example 1 was performed using the above-mentioned resin R-44, to thereby obtain toner T-44.
- capri was generated in the obtained image, and the image was unusable. Ivy, industrial applicability
- the resin for a toner of the present invention having the above-described constitution is excellent in fixing property, non-offset property, anti-blocking property and image stability, and is used in a printer, a copier and a printer used in electrophotography / electrostatic printing. It is extremely useful as a resin for toner such as facsimile.
- the resin for toner of the present invention is obtained by suspension polymerization under specific conditions, the amount of residual monomers in the resin is small. It has excellent properties that it does not occur.
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Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69529201T DE69529201T2 (de) | 1994-05-10 | 1995-04-20 | Harz für toner und verfahren zu dessen herstellung |
EP95916025A EP0709743B1 (en) | 1994-05-10 | 1995-04-20 | Toner resin and process for producing the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6/119668 | 1994-05-10 | ||
JP11966894 | 1994-05-10 | ||
JP6/119667 | 1994-05-10 | ||
JP6119667A JPH07306546A (ja) | 1994-05-10 | 1994-05-10 | トナー用樹脂 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995030936A1 true WO1995030936A1 (fr) | 1995-11-16 |
Family
ID=26457352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1995/000784 WO1995030936A1 (fr) | 1994-05-10 | 1995-04-20 | Resine pour toner et procede de production de ladite resine |
Country Status (5)
Country | Link |
---|---|
US (1) | US5914380A (ja) |
EP (1) | EP0709743B1 (ja) |
KR (1) | KR100393700B1 (ja) |
DE (1) | DE69529201T2 (ja) |
WO (1) | WO1995030936A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1168088A4 (en) * | 1999-03-03 | 2004-09-29 | Matsushita Electric Ind Co Ltd | R LINK SINE FOR TONER, TONER AND LECTROPHOTOGRAPHY |
US7018765B2 (en) * | 2002-05-13 | 2006-03-28 | Konica Corporation | Toner particle having a hardnes of 6.0 to 24.0 mN and a circularity of 0.92 to 0.99 |
Citations (5)
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JPH01225964A (ja) * | 1988-03-04 | 1989-09-08 | Canon Inc | 静電荷像現像用トナー |
JPH02160252A (ja) * | 1988-12-14 | 1990-06-20 | Canon Inc | トナー用バインダー樹脂の製造方法 |
JPH0339971A (ja) * | 1989-04-17 | 1991-02-20 | Canon Inc | カラートナー及びカラートナーの定着方法 |
JPH03177847A (ja) * | 1989-12-06 | 1991-08-01 | Canon Inc | 静電荷像現像用磁性トナー |
JPH0534974A (ja) * | 1991-07-31 | 1993-02-12 | Fuji Xerox Co Ltd | 電子写真用トナー |
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US3644307A (en) * | 1969-08-19 | 1972-02-22 | Union Oil Co | Alkene styrene polymers |
US4110527A (en) * | 1973-04-30 | 1978-08-29 | Olin Corporation | Vinyl chloride polymerization using selected amounts of air, oxygen or nitrogen |
CA1302612C (en) * | 1986-09-08 | 1992-06-02 | Satoshi Yasuda | Toner for developing electrostatic images, binder resin therefor and process for production thereof |
JPS6410262A (en) * | 1987-07-03 | 1989-01-13 | Canon Kk | Electrostatic charge image developing toner |
WO1989004509A1 (en) * | 1987-11-06 | 1989-05-18 | Mitsui Toatsu Chemicals, Incorporated | Resin for toner and toner containing same |
JP2681784B2 (ja) * | 1988-02-29 | 1997-11-26 | キヤノン株式会社 | トナー用結着樹脂 |
CA1326154C (en) * | 1988-02-29 | 1994-01-18 | Koichi Tomiyama | Magnetic toner for developing electrostatic images |
US5307122A (en) * | 1989-07-28 | 1994-04-26 | Canon Kabushiki Kaisha | Image forming apparatus apparatus unit facsimile apparatus and developer comprising hydrophobic silica fine powder for developing electrostatic images |
DE69030901T2 (de) * | 1989-07-28 | 1998-01-22 | Canon Kk | Bildherstellungsapparat |
EP0417812B1 (en) * | 1989-09-14 | 1995-06-21 | Canon Kabushiki Kaisha | Electrostatic image developing toner and process for its production, and binder resin and process for its production |
JPH03118553A (ja) * | 1989-10-02 | 1991-05-21 | Canon Inc | 静電荷像現像用トナー |
CA2029468C (en) * | 1989-11-09 | 1997-01-28 | Tsutomu Kukimoto | Toner, image forming apparatus, apparatus unit and facsimile apparatus |
DE69032129T2 (de) * | 1989-12-12 | 1998-07-02 | Mitsui Chemicals Inc | Elektrophotographische tonerzusammensetzung und herstellungsverfahren |
US5338638A (en) * | 1990-11-29 | 1994-08-16 | Canon Kabushiki Kaisha | Toner for developing electrostatic image and process for production thereof |
US5268248A (en) * | 1990-11-30 | 1993-12-07 | Canon Kabushiki Kaisha | Toner for developing electrostatic image and process for production thereof |
US5744276A (en) * | 1993-03-31 | 1998-04-28 | Canon Kabushiki Kaisha | Toner for developing electrostatic image containing higher and lower molecular weight polymer components |
-
1995
- 1995-04-20 EP EP95916025A patent/EP0709743B1/en not_active Expired - Lifetime
- 1995-04-20 KR KR1019960700107A patent/KR100393700B1/ko not_active IP Right Cessation
- 1995-04-20 WO PCT/JP1995/000784 patent/WO1995030936A1/ja active IP Right Grant
- 1995-04-20 DE DE69529201T patent/DE69529201T2/de not_active Expired - Lifetime
-
1997
- 1997-07-02 US US08/887,273 patent/US5914380A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01225964A (ja) * | 1988-03-04 | 1989-09-08 | Canon Inc | 静電荷像現像用トナー |
JPH02160252A (ja) * | 1988-12-14 | 1990-06-20 | Canon Inc | トナー用バインダー樹脂の製造方法 |
JPH0339971A (ja) * | 1989-04-17 | 1991-02-20 | Canon Inc | カラートナー及びカラートナーの定着方法 |
JPH03177847A (ja) * | 1989-12-06 | 1991-08-01 | Canon Inc | 静電荷像現像用磁性トナー |
JPH0534974A (ja) * | 1991-07-31 | 1993-02-12 | Fuji Xerox Co Ltd | 電子写真用トナー |
Non-Patent Citations (1)
Title |
---|
See also references of EP0709743A4 * |
Also Published As
Publication number | Publication date |
---|---|
DE69529201D1 (de) | 2003-01-30 |
DE69529201T2 (de) | 2003-11-13 |
KR960704255A (ko) | 1996-08-31 |
EP0709743A4 (en) | 1998-02-11 |
KR100393700B1 (ko) | 2004-02-14 |
EP0709743A1 (en) | 1996-05-01 |
EP0709743B1 (en) | 2002-12-18 |
US5914380A (en) | 1999-06-22 |
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