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7374847 |
Toner and developer for developing electrostatic image and image forming method
A toner for developing an electrostatic image is disclosed. The toner contains an amount of not less than 0.1% by weight of an element selected from elements of the Groups of 1B, 2B, 4B, 5B, 6B,...
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7323282 |
Dry toner, method for producing dry toner, and method for forming an image
The toner having a significantly improved dispersibility of a colorant in toner particles is provided. The present invention provides a dry toner comprising: (i) a binder resin; (ii) a colorant;...
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7309558 |
Use of salt-like structured silicas as charge control agents
The present invention relates to the use of salt-like structured silicates, in which the cation is NH 4 + , H 3 O + , an alkali metal, alkaline earth metal, earth metal or transition metal ion or a...
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7232632 |
Color toners and image forming method using the color toners
A method for forming a full color image including: forming at least yellow, magenta and cyan color toner images on a receiving material to form a full color image thereon; and fixing the full color...
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7115349 |
Toner
Provided is toner which is excellent in developing property, transferring property, and fixing property, hardly affected by its surrounding, and has good endurance. The toner has a peak temperature...
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7083887 |
Color toner and image forming apparatus using the color toner
This invention provides: a color toner to be fixed on a recording medium with a flash light comprising a binder resin, an infrared ray absorbent and a coloring agent for mainly developing a yellow...
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7014975 |
Solids surface-modified with amino groups
Surface-modified solids bearing groups of the formula I
SiR 1 2 —R—NH 2 (I),
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6620568 |
Flash fixing color toner and image forming process using the same
The present invention discloses a flash fixing color toner for use in an image forming process, which comprises a binder resin, a coloring agent, and an infrared absorbent, wherein negative ions...
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6593050 |
Flash fixing color toner
A flash fixing color toner for use in an image forming process includes a binder resin and a hue-altering coloring agent, wherein the hue-altering coloring agent alters, at a time of irradiation of...
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6544710 |
Reactive compatibilization of polymeric components such as siloxane polymers with toner resins
A toner composition comprising a primary resin and at least one additional polymeric component is improved by reactive compatibilization of the additional polymeric component and the resin. For...
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6534230 |
Toner formulations
A dry, powder electrostatic toner having polyester resin as a binder, pigment as a colorant, charge control ingredients polyethylene wax as a release agent, and extra particulate elements to...
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6391507 |
Cyan pigments in electrophotographic toners and developers
The present invention relates to the use of a CuPc composition consisting essentially of CuPc, e.g., C.I. Pigment Blue 15:3, and a hydroxymethylphthalimido CuPc, as a colorant in...
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6379856 |
Toner compositions
A toner composition comprised of binder, colorant, and a surface additive of a coated silica and wherein said silica possesses a BET surface area, in m 2 /g of from about 35 to about 65, a bulk...
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6368399 |
Composite pigments, coloring compositions, and image recording substances
A composite pigment of a bluish green color comprises copper phthalocyanine and aluminum phthalocyanine which are preferably in the form of a mixture or solid solution. The composite pigment can be...
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6350552 |
Reactive compatibilization of polymeric components such as siloxane polymers with toner resins
A toner composition comprising a primary resin and at least one additional polymeric component is improved by reactive compatibilization of the additional polymeric component and the resin. For...
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6319647 |
Toner and developer for magnetic brush development system
A toner of toner particles containing at least one binder, at least one colorant, and preferably one or more external additives is advantageously formed into a developer and used in a magnetic...
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6265126 |
Hydrophobic metal oxide powder and application thereof
A hydrophobic metal oxide powder obtained by simultaneously surface-treating a powder of a metal oxide (for example, silica, titania, alumina, or the like) with silicone oil having epoxy groups and...
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6120962 |
Organic silicone quaternary ammonium salt, producing method thereof, and toner and dry-type developer using the same for developing latent electrostatic images
A toner for developing latent electrostatic images has toner particles which contain a resin, a coloring agent, and an organic silicone quaternary ammonium salt of formula (1): [R 1 R 2 Si(CH 2...
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6060615 |
Positively-chargeable charge control agent and toner for developing electrostatic images
Positively-chargeable charge control agent and toner for developing electrostatic images that comprises a coloring agent, a resin for toners, and said positively-chargeable charge control agent....
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6057073 |
Toner for developing electrostatic image, image forming method, developing apparatus unit, and process cartridge
A toner for developing an electrostatic image has toner particles containing at least a binder resin and a colorant, and an inorganic fine powder. The inorganic fine powder has been treated with a...
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5989768 |
Charge-modified metal oxides with cyclic silazane and electrostatographic systems incorporating same
The present invention relates to a charge-modified metal oxide and to toner and developer compositions incorporating same. The charge-modified metal oxide includes a metal oxide having a cyclic...
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5925487 |
Composition, compound and use
A toner resin composition comprising a toner resin and the metal salt or complex of a carbocyclic hydroxy caboxylic acid containing at least one methylene group optionally substituted by hydroxy or...
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5914210 |
Developer and developing method
In the present invention, in carrying out reversal development of an electrostatic latent image formed on a positively charged amorphous silicon type photoreceptor, a developer including positively...
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5905011 |
Nonmagnetic monocomponent negatively chargeable color developer
A nonmagnetic monocomponent negatively chargeable color developer which has excellent light transmittancy for overhead projection transparencies, excellent transfer characteristics, charging...
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5885739 |
Colored toner and developer compositions
Toners comprised of a cyan toner, a magenta toner, a yellow toner, an orange toner, or a red toner, and a black toner, each of said toners being comprised of resin and pigment; and wherein the...
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5853929 |
Trichromatic set of colored toners
Colored cyan toner for electroreprography and laser printing based on Solvent Blue 70 and a trichomatic set of colored toners based on Solvent Blue 70, benzodifuranone red dyes and azo pyridone...
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5846682 |
Light decolorizable recording material, ink and toner
A light decolorizable recording material comprising a colored dye having absorptions in the visible light region and a boron compound represented by the general formula (1), ##STR1## wherein R 1 ,...
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5837413 |
Electrophotographic toner, and developer
The invention provides a magnetic toner for electrophotography in which an ultrafine particle form of titanium oxide (having a specific surface area of 80 to 120 m 2 /g, a degree of hydrophobicity...
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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...
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5789131 |
Developer for developing electrostatic latent image
A developer for developing an electrostatic latent image comprising: (a) a positively chargeable toner particle comprising a binder resin which comprises a styrene-type copolymer having an acid...
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5759729 |
Photochromic electrostatic toner compositions
Disclosed is a toner composition for the development of electrostatic latent images which comprises particles comprising a mixture of a resin and a photochromic material. Another embodiment of the...
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5721084 |
Charge controlling agent for electrostatic image development, and toner and charge-imparting material employing it
A charge controlling agent for electrostatic image development, which is a metallic compound of a compound of the formula (I): ##STR1## wherein each of A and R is a substituted or unsubstituted...
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5719002 |
Process for the preparation of colored toner and developer compositions for enlarged color gamut
A combination of toners containing a cyan toner, a magenta toner, a yellow toner, a violet toner, and a black toner, each toner containing resin and pigment. The pigment for each of the colored...
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5691095 |
Toner for developing electrostatic latent image and process for producing the same
A toner containing at least a colorant and a resin, in which the resin is a polyester resin having a total acid radical content of 2 to 50 mg equivalents per 100 g and having a weight-average...
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5683843 |
Solid colored composition mutable by ultraviolet radiation
A solid colored composition which includes a colorant and an ultraviolet radiation transorber. The colorant, in the presence of the ultraviolet radiation transorber, is adapted, upon exposure of...
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5665513 |
Toner for developing electrostatic charged image
The present invention provides a toner, particularly color toner, for developing an electrostatic image, which comprises toner particles containing a mixture of a binder resin, a coloring agend and...
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5665511 |
Surface-treated inorganic fine particle and electrophotographic developer using the same
A surface-treated inorganic fine particle includes an inorganic fine particle, a hydrophobizing agent deposited on the surface of the inorganic fine particle and an amino group-containing coupling...
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5663028 |
Electrostatic toners containing aminodiacetic acid derivatives
Electrostatic toners contain a polymeric binder and, as a charge stabilizer, a compound of the formula ##STR1## where M ♁ is one equivalent of a cation and R is unsubstituted or substituted C...
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5663025 |
Magenta toner and developer compositions
A toner composition comprised of resin particles, first magenta pigment particles of a molydate silicate salt of rhodamine, and second magenta pigment particles of a 2,9-dimethylquinacridone; and...
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5616444 |
Toners and developers containing BIS(ammonium) tetrahalocuprate salts as charge-control agents
New electrostatographic toners and developers are provided containing charge-control agents comprising bis(ammonium) tetrahalocuprate salts having the structure: ##STR1## wherein R, R 1 , R 2 and...
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5616443 |
Substrate having a mutable colored composition thereon
A solid colored composition which includes a colorant and an ultraviolet radiation transorber. The colorant, in the presence of the ultraviolet radiation transorber, is adapted, upon exposure of...
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5607804 |
Combination, set, or gamut toners
Toners comprised of a mixture of a cyan toner, a magenta toner, a yellow toner, and an optional black toner, each of said toners being comprised of resin and pigment, and wherein the pigment for...
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5607803 |
Decolorizable toner and a decolorizable toner production process
The present invention discloses a decolorizable toner wherein a cationic dye having absorbance from the visible region to the near infrared region is contained in a binder resin together with a...
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5604069 |
Toners and developers containing ammonium trihalozincates as charge-control agents
New electrostatographic toners and developers are provided containing charge-control agents comprising ammonium trihalozincate salts having the structure: ##STR1## wherein R, R 1 , R 2 and R 3 ...
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5595852 |
Organosilicon compound, producing method thereof and toner and dry-type developer using the same
There are provided an organosilicon compound of formula (I) and a producing method thereof: ##STR1## wherein R 1 , R 2 and R 3 each is an alkyl group having 1 to 6 carbon atoms, or a phenyl group...
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5582946 |
Toners and developers containing bis(ammonium) tetrahalomanganate salts as charge-control agents
New electrostatographic toners and developers are provided containing charge-control agents comprising bis(ammonium) tetrahalomanganate salts having the structure: ##STR1## wherein R, R 1 , R 2 ...
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5563016 |
Diallylammonium compounds, processes for their preparation and their use
Ionic monomeric diallylammonium compounds having a targeted combination of diallylammonium cations with selected anions have particularly high and constant charge control properties and very good...
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5561020 |
Quaternary phosphonium trihalozincate salts as charge-control agents for toners and developers
New electrostatographic toners and developers are provided containing charge-control agents comprising quaternary phosphonium trihalozincate salts having the structure: ##STR1## wherein R is...
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5547803 |
Quaternary phosphonium trihalocuprate salts as charge-control agents for toners and developers
New electrostatographic toners and developers are provided containing charge-control agents comprising quaternary phosphonium trihalocuprate salts having the structure: ##STR1## wherein R is...
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5547802 |
Image formation materials and image fading prevention method
An image formation material for forming images including color images, such as a toner or developer for use in image formation methods such as electrophotography, electrostatic recording, and in an...
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