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| Number | Title | Issue Date |
| 8039188 | Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge and image forming apparatus An electrostatic image developing toner including a binder resin; and a colorant, and satisfying following conditions (1) and (2): 0.02≦CA/CB≦0.20  (1) 1≦Nt/St≦15  (2) wherein C... | 10/18/2011 |
| 7776502 | Toner for developing electrostatic charge image, electrostatic charge image developer, image forming method and image forming apparatus A toner for developing an electrostatic charge image, includes: a binder resin formed by reacting a polymerizable aromatic monomer having an ethylenically unsaturated double bond conjugated to an aromatic ring thereof, a nitrogen-containing polymerizable aliphatic m... | 08/17/2010 |
| 7311953 | Colored composition for color filter and display using color filters formed of the colored composition An object of the present invention is to obtain color filters having a high contrast, a high color purity and an improved transmittance for blue color, and a display using the color filters. In the present invention, there is used a colored composition for color fil... | 12/25/2007 |
| 7303847 | Dry toner A dry toner is provided that is prepared by a method including the steps of (A) dissolving or dispersing a toner composition in an organic solvent to prepare a toner composition liquid and (B) dispersing the toner composition liquid in an aqueous liquid which contai... | 12/04/2007 |
| 7294443 | Toner composition and method for manufacturing the toner composition A toner composition including toner particles including a binder resin; and a colorant, and a charge controlling agent which is at least located on a surface of the toner particles, wherein the toner composition has a spherical degree of from 0.96 to 0.99, and where... | 11/13/2007 |
| 7244537 | Toner for developing an electrostatic charge image and method for its production To provide a toner for developing an electrostatic charge image, which has a good low temperature fixing property whereby it is useful for an image-forming device of a low temperature heat fixing system using a heat roll having a surface temperature of at most 150°... | 07/17/2007 |
| 7163827 | Aromatic esters for marking or tagging organic products A compound represented by formula I is used as a marker for organic products. wherein Ar1 and Ar2 each independently represent a substituted or unsubstituted phenylene group or a substituted... | 01/16/2007 |
| 7005223 | Toner composition and method for manufacturing the toner composition A toner composition including toner particles including a binder resin; and a colorant, and a charge controlling agent which is at least located on a surface of the toner particles, wherein the toner composition has a spherical degree of from 0.96 to 0.99, and where... | 02/28/2006 |
| 6967070 | Electrophotographic toner and image forming method An electrophotographic toner comprising a binder resin and a colorant, which is used in electrophotographic process employing a flash fixing system for fixation of a transferred toner image, wherein the binder resin is a polyester ... | 11/22/2005 |
| 6916588 | Binder resin for toner and toner A binder for a toner containing a polyester resin (A); and a block copolymer (B) comprising a block comprising a sequence of ethylene hydrocarbon and/or a conjugated diene hydrocarbon-derived constituent units, and a block comprising a sequence of styrene-derived co... | 07/12/2005 |
| 6861192 | Crosslinked binder polymers for electrostatographic toners and toners formed therefrom A binder polymer composition for electrostatographic toners comprises a carboxysubstituted precursor polymer crosslinked by reaction with an N,N,N′N′-tetrakis(2-hydroxyalkyl) bisamide compound of the structure ... | 03/01/2005 |
| 6579653 | Binding resin for toner, toner, and electrophotograph In an electrophotographic apparatus, which forms a color image by transferring a plurality of toner images having different colors onto an image-receiving sheet so as to be stacked and fixed thereon, even in the case of carrying out an oil-less fixing pro... | 06/17/2003 |
| 6495301 | Toner coated with conductive polymer A toner comprising separate toner particles each of which comprises a fixable core, the core being provided with a conductive surface layer containing a doped electrically conductive polymer and an intermediate layer, particularly a polymer-containing int... | 12/17/2002 |
| 6472116 | Dry toner, and its production process The object of the present invention is to achieve a dry toner that is of improved low-temperature fixability, pulverizability, offset resistance, durability and storability as well as improved transparency and light resistance and so provides a useful col... | 10/29/2002 |
| 6461782 | Toner and method for image formation A toner with a glass transition point (Tg) before curing of not lower than 35° C., said toner comprising: a toner binder composed of a resin (I) selected from the group consisting of a cation-polymerizable thermoplastic resin (A) and a radical-polymeriza... | 10/08/2002 |
| 6416917 | Dry toners having specified condensation binder resins Provided by the present invention are (1) a dry toner excellent in powder flowability and transferability when formed as a small-particle-size toner; (2) a dry toner excellent in any one of heat storage stability, low-temperature fixing property and anti-... | 07/09/2002 |
| 6395442 | Toner and production method of the same A toner for electrophotography is disclosed. The resin binder is obtained by fusing fine resin particles comprising a crystalline material and amorphous polymer in a water-based medium. The crystalline material preferably has a melting point of 60 to 130Â... | 05/28/2002 |
| 6326115 | Toner and toner binder A toner comprising a toner binder and a colorant, composed of resin particles produced by causing an extension reaction and/or crosslinking reaction of a dispersion formed of a reactive group-containing prepolymer () contained in an aqueous medium ... | 12/04/2001 |
| 6096467 | Positive charging color toner Disclosed are a positive charging color toner comprising a coloring agent and a positive charging electric charge controlling material in a fixing resin, wherein the fixing rein is an urethane-modified polyester resin having an acid value of not more than... | 08/01/2000 |
| 6066429 | Toner for development of electrostatic images A toner for developing an electrostatic image to a visible toner image includes an amide-bonding-containing polymeric material, a releasing material, and a coloring agent, with the toner, when fused, having no interfaces between the toner particles thereo... | 05/23/2000 |
| 6037090 | Toner for electrophotography and method of preparation thereof A colorant in a toner comprising a binder resin and a colorant is dispersed by a dispersant polymer having an acid value of from 1 mgKOH/g or more to 27 mgKOH/g or less and an amine value of from 1 or more to 100 or less. Thus, dispersibility of the color... | 03/14/2000 |
| 6025104 | Toner and developer compositions with polyoxazoline resin particles A toner composition comprised of substituted polyoxazolines resin particles, pigment particles, and optional charge enhancing additives.... | 02/15/2000 |
| 5888689 | Method for producing cross-linked fixed toner images A method for forming images is provided, comprising the steps of: i) providing a substrate comprising reactive group RGB, ii) providing toner particles comprising reactive group RGA, iii) image-wise depositing the toner particles on the substrate and iv) reacting the re... | 03/30/1999 |
| 5814427 | Decolorizable toner and process for preparing the same What is disclosed a decolorizable toner of which main components are a visible ray-near infrared ray-absorbing dye, a decolorizing agent and a resin binder, characterized in that a resin binder A containing the visible ray-near infrared ray-absorbing dye ... | 09/29/1998 |
| 5800957 | Toner for electrostatic latent image development and process for producing the same A toner for electrostatic latent image development composed of a core substance containing a colorant and a binder resin and an outer shell, in which the colorant in the core substance is treated with an amino-containing coupling agent and a rosin derivat... | 09/01/1998 |
| 5763130 | Encapsulated toner for heat-and-pressure fixing and method for production thereof The present invention is directed to an encapsulated toner for heat-and-pressure fixing having a heat-fusible core material containing at least a thermoplastic resin and a coloring agent and a shell formed thereon so as to cover the surface of the core ma... | 06/09/1998 |
| 5723246 | Binder resin and toner for electrostatic development containing the same The binder resin for producing a toner includes the following three resins (A) to (C): resin (A) having a softening point of 120° C. or more and 170° C. or less, a glass transition temperature of 58° C. or more and less than 75° C., and a weight perce... | 03/03/1998 |
| 5631729 | Image forming apparatus An image forming apparatus for forming a latent image on a photosensitive member, developing the latent image by a developing device, transferring the developed image onto a sheet, and cleaning a residual toner remaining on the photosensitive member after... | 05/20/1997 |
| 5604070 | Liquid toners with hydrocarbon solvents The toner particles of this invention comprise pigment and a resin. The resin comprises a novel polymer formed from ethylenically unsaturated monomers, macromeric moieties that render the resin dispersible in hydrocarbon solvents, and a surface-release pr... | 02/18/1997 |
| 5597673 | Toner for developing electrostatic latent image A toner comprising a binder resin, a colorant, and a charge controlling agent comprising (a) a specific iron-containing azo dye and (b) a copolymer of a styrene monomer and/or an acrylic monomer with a sulfonic acid group-containing acrylamide, wherein th... | 01/28/1997 |
| 5591556 | Toners for developing electrostatic image A toner for developing an electrostatic image comprises primary colored resin particles having a mean particle size of 0.6 to 10 microns which have been agglomerated to form secondary particles having a particle size of 1.2 to 20 microns. The primary colo... | 01/07/1997 |
| 5552254 | Amic acid based toner compositions A toner composition comprised of pigment and an amic acid based resin.... | 09/03/1996 |
| 5521045 | Toner for a two-component-type magnetic developing agent having excellent spent resistance A toner in which a small amount of magnetic powder is disposed in a resin medium for fixing which comprises a cationic polar group-containing copolymer resin or a resin composition. A distinguished feature resides in that the toner does not contain a char... | 05/28/1996 |
| 5518850 | Unsaturated polyesters with vinyl side chains A low fix temperature toner having improved blocking performance comprises colorant and toner resin. The toner resin comprises the reaction product of (1) a diacid, diester or anhydride, (2) a diol and (3) a vinyl monomer compound having separate polyeste... | 05/21/1996 |
| 5514510 | Binder resin for electrophotographic toner and toner containing the same The present invention is concerning a binder resin for an electrophotographic toner, which comprises a mixture of polymers comprising styrenic monomer units with or without acrylic or methacrylic monomer units. This binder resin has at least one peak in t... | 05/07/1996 |
| 5512401 | Polyimide-amic acid toner compositions A toner composition comprised of a pigment and a polyimideamic acid resin.... | 04/30/1996 |
| 5483016 | Method for producing binder resin and toner for electrophotography using the binder resin The method of producing a binder resin has the steps of blending in advance (a) a starting material monomer mixture for two polymerization reaction types, (b) a compound which can react with both of starting material monomers for the two polymerization re... | 01/09/1996 |
| 5434030 | Toner compositions containing complexes of ionic dyes and ionophoric or ionomeric polymers A toner composition includes a resin, a charge enhancing additive, an ion binding polymer, and at least one ionic dye complexed to the ion binding polymer. The ionic dye is different from the charge enhancing additive and is stabilized and dispersed in th... | 07/18/1995 |
| 5427883 | Toner composition for electrophotography The present invention provides a toner composition mainly comprising a binder resin (D) which contains at least 20% by weight of an urethane-modified polyester resin (C) obtained by reacting a polyester resin (A) with an isocyanate compound (B) and whose ... | 06/27/1995 |
| 5427881 | Crosslinked polyesterimide toner compositions A toner composition comprised of a pigment, and a crosslinked polyesterimide.... | 06/27/1995 |
