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7384472 Pigment preparations based on PY 155  
The invention concerns a pigment preparation based on C.I. Pigment Yellow 155, containing 0.1% to 50% by weight, based on the weight of C.I. Pigment Yellow 155, of at least one pigment dispersant...
7364828 Toner for electrophotography, method of manufacturing the toner, developer, development method, transfer method, and process cartridge using the toner  
The method of manufacturing toner for electrophotography includes the steps of dissolving or dispersing a toner composition containing a resin and a coloring agent into polymerizable monomers to...
7267921 Process for forming toners from dry pigments  
A process for preparing toner compositions using a dry pigment is provided. The process comprises combining a base toner resin composition, a dry pigment, and dispersion agent in a one step...
7255734 Phthalocyanine pigment preparations  
A copper phthalocyanine pigment preparation contains a copper phthalocyanine pigment and at least one pigment dispersant from the group of copper phthalocyanine sulfonic acids and copper...
7205046 Electrophotographic lamination film, a method of producing the same, and a method of forming an image  
The present invention provides an electrophotographic lamination film which can be easily laminated by using the film as it is without significantly modifying a conventional electrophotographic...
7166158 Quinacridone pigment compositions comprising unsymmetrically substituted components  
The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for...
7153624 Plastic toner and method for producing such a plastic toner  
A toner and to a method for producing a plastic toner, especially for electrophotography. The base material for the toner, a powder for powder coating, is used and has a grain size distribution of...
7153622 Electrostatic charge image developing toner, producing method therefor, image forming method and image forming apparatus utilizing the toner, construct and method for making the construct  
A construct that comprises a base material and a polyhydroxyalkanoate, wherein at least a part of the base material is coated with the polyhydroxyalkanoate, and the polyhydroxyalkanoate comprises a...
7153358 Pigment preparations based on diketopyrrolopyrrole pigments for the undistorted pigmentation of partially crystalline plastics  
A pigment preparation comprising a) at least one diketopyrrolopyrrole pigment of the formula (V) as a base pigment and b) at least one pigment dispersing agent based on sulphonated...
6908720 Polyhydroxyalkanoate, its production method, charge control agent containing the polyhydroxyalkanoate, toner binder and toner, and image forming method and image forming apparatus using the toner  
The present invention provides a novel PHA comprising a unit containing thioether with high reactivity, and its production method. The present invention also provides polyhydroxyalkanoate (PHA)...
6879798 Image forming apparatus  
An image forming apparatus includes an image bearing body, a developing unit, and a transfer unit. The image bearing body bears an electrostatic latent image formed thereon. The developing unit...
6753371 Fluorine rubber composition, fixing member, fixing device, fixing method, and method of manufacturing fixing device  
A fluorine rubber composition used for the surface layer material of a fixing member to fix a toner transferred onto a recording material comprises fluorine rubber having a polymerization degree...
6740463 Method for producing toner by mixing colored particles and outer-additive by mixer with stirrer of high speed rotation  
A method of producing a toner having a process of mixing colored particles and outer-additives by using a mixer with an agitating blade whose shaft portion is sealed with a gas having a flow rate...
6728507 Electrostatic image forming apparatus with fluororesin in fixing roller layer  
An image forming apparatus forms an electrostatic latent image corresponding to an image information signal on an image carrying member, develops the electrostatic latent image using a two...
6689524 Toner for developing a static latent image and image forming apparatus  
The present invention relates to a toner for developing a static latent image, wherein a smell of the toner has a cos θ of from 0.990 to 0.998 as to the smell of styrene and a cos θ of from 0.986...
6673504 Method for applying a coating to a surface of a material  
A method for applying a coating to a surface of a material while using electrophotography. According to this invention, a supporting material provided with a photoconductive layer has an...
6548703 Toning agent  
A toning agent for an azo pigment, an azo pigment with a modified tone, and process for preparing the same are provide. 2-hydroxynaphthalene-3,6-dicarboxylic acid or a derivative thereof is admixed...
6506244 Stable polymorphic copper-free phthalocyanine pigment  
The invention relates to a new polymorphic pigmentary form of phthalocyanines, the preparation therof by salt-milling a phthalocyanine crude in the presence of a water-soluble neutral organic...
6464797 Method of separating electrophotographic carrier compositions and recycling the compositions  
A method for use in two-components electrostatic image developers is disclosed, in which secure separation of a carrier coating resinous materials from a core magnetic material is achieved without...
6420012 Toner carrier and image-forming apparatus  
A toner carrier which carries a toner in the form of thin film on its surface, comes close to or comes into contact with the image-forming body so as to supply the toner to the surface of the...
6361916 Loaded latex compositions with dye and stabilizer  
A composition that is useful in a wide variety of applications comprises a latex having water as a continuous phase and, as the dispersed phase, hydrophobic polymer particles having associated...
6153346 Electrostatic image developing toner, process for the production thereof, electrostatic image developer and process for the formation of image  
Disclosed is an electrostatic image developing toner comprising a binder resin and a coloring agent, which exhibits a volume-average particle distribution GSDv of not more than 1.26 and an acid...
6134413 Carrier for magnetic developer and method of electrophotographically forming visual image  
A magnetic carrier for a developer used in electrostatically forming a visual image, comprising a magnetic core material, an electrically-conductive particle-containing resin layer and...
6122473 Developer carrying member for carrying developer, apparatus unit detachably mountable on the main assembly of image forming apparatus, and image-forming apparatus  
A developer carrying member for carrying a developer is includes a substrate and a resin coat layer which is formed on the surface of the substrate and contains a binder resin and a conductive fine...
6068921 Carbon fluoride particles, preparation process and users of the same  
Carbon fluoride particles in which a number-average particle size is 0.01 to 50 μm, a content of particles having such a diameter that the particles size distribution falls with in range of the...
5998078 Method of preparing toner for electrostatic charge image development, toner for electrostatic charge image development, electrostatic charge image developer, and image forming method  
The present invention provides a method of preparing a toner for electrostatic charge image development comprising the steps of a liquid mixture preparation process for preparing a liquid mixture...
5884129 Electrostatic-image developer and image forming process  
An electrostatic-image developer which comprises: (i) a toner comprising: (a) toner particles containing carbon black in an amount of from 6 to 8% by weight based on the weight of the toner...
5871878 Toner offset preventing oils for zirconia ceramic and its composites rollers  
Offset preventing oils for treated (IR light) or untreated zirconia ceramic or its composites fuser rollers are disclosed.
5853937 Two-component magnetic developer for printing characters for magnetic ink character recognition  
A two-component magnetic developer of the invention for printing characters on documents for magnetic ink character recognition comprises the mixture of 20 to 80 percent by weight of a magnetic...
5689781 Carrier for electrostatic latent image developing  
A carrier for electrostatic latent image developing for use in methods of developing an electrostatic latent image formed on the surface of a latent image-bearing member by transporting a developer...
5658991 Toner resin composition and a method of manufacturing it, as well as a toner and a method of manufacturing it  
A toner resin composition and toner is provided, wherein said toner resin composition comprises a high molecular weight resin having a peak molecular weight of about 100,000-4,000,000, or a gel...
5650484 Feedback control system for polymer modification of toner resins and toners  
An apparatus for the preparation of a mixture of toner resin and initiator, to form a toner resin or toner mixture including cross-linked microgel particles is provided. The apparatus includes a...
5557393 Process and apparatus for achieving customer selectable colors in an electrostatographic imaging system  
An electrostatographic imaging process includes forming an electrostatic latent image on an image forming device, developing the electrostatic latent image on the image forming device with at least...
5547796 Developer containing insulating magnetic toner flowability-improving agent and inorganic fine powder  
A developer for developing an electrostatic image is constituted by an insulating magnetic toner, inorganic fine powder and a flowability-improving agent having a BET specific surface area of at...
5512708 Toner used in an image forming apparatus  
An image forming apparatus includes a photosensitive body. A charge member is held in contact with the photosensitive body and charges the photosensitive body by applying a voltage thereto. An...
5491044 Toners and developers containing quaternary ammonium 3,5-di-tertiary-alkyl-4-hydroxybezenesulfonate salts as charge-control agents  
New electrostatographic toners and developers are provided containing charge-control agents comprising 3,5-di-tertiary-alkyl-4-hydroxybenzenesulfonate salts having the structure: ##STR1## The...
5467174 Apparatus for forming an image using an electrophotographic process  
The improved image forming method reduces the chance of toner particles of adhering or filming on the surfaces of impression members, thereby enabling the formation of high-resolution image in a...
5415963 Plural color toners, developers comprising the same, image-forming method using the plural toners, and image-forming system therefor  
The present invention relates to plural color toners for use in image-forming method of forming images cyclically with the toners, developers comprising the toners and image-forming method by use...
5393630 Melt mixing processes  
A reactive melt mixing process for the preparation of a toner resin comprising the steps of (a) melt mixing a base resin with a matrix resin containing a crosslinking agent, thereby forming a...
5366836 Sublimable dye toner, method of manufacture and method of use  
A process for forming color xerographic images by using a toner which comprises one or more dyes. Also disclosed is a process for making a toner which comprises one or more dyes.
5281505 Toner composition  
A toner composition comprising a binder resin having dispersed therein additives including a colorant and a charge control agent, wherein said additives are present as agglomerates having an...
5246809 Carrier for a developing agent  
A magnetic carrier for a two-component type developing agent used for the electrophotography, comprising resin-magnetic spherical particles which are formed by the polymerization of a monomer in...
5204413 Process fro producing resin for a toner  
A process for producing a toner resin by a two-step suspension polymerization process, which entails preparing a polymer of high molecular weight having a weight average molecular weight of greater...
5194472 Ester-containing quaternary ammonium salts as adhesion improving toner charge agents  
Toner particles comprising a polyester binder and a charge control agent are provided wherein such agent is a quaternary ammonium salt having one or more ester-containing moieties. Such an...
5188929 Electrostatic image developing toner comprising complex compounds containing silicon  
A toner for developing an electrostatic image is disclosed, essentially comprising as a colorless charge electrification controlling agent causing no environmental pollution, a complex compound...
5183717 Field-enhanced charge injection amplification  
A weak electrostatic image on an imaging member is amplified by first toning it with a charge injection toner. The imaging member is recharged without fusing the toner image to a charge of the same...
5164780 Image forming apparatus having developer carrying member with surface layer of defined load curve  
An image forming apparatus comprising an electrostatic latent image bearing member and a developing apparatus for developing an electrostatic latent image. The developing apparatus comprises a...
5154999 Resin binder for toner composition  
A novel resin is produced by the step of polymerizing (a) styrene and/or a derivative thereof, (b) a monomer component selected, alone or in combination of two or more, from the group consisting of...
5154998 Toner for developing electrostatically charged images  
A toner for developing electrostatically charged images is disclosed including a binder resin and a coloring agent as principal ingredients, the toner containing ethylene/methyl methacrylate...
5143809 Color toner  
There is disclosed a color toner having an excellent fixability, an improved antioffset property and a superior transparency of an image fixed on an OHP sheet. The color toner comprises 100 parts...
Matches 1 - 50 out of 98 1 2 >