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4618556 Developer and developing method  
A developer for electrostatography containing a positive charge controlling agent comprising fumed silica particles treated with a silane coupling agent or titanate coupling agent and controlled...
4600676 Toner composition containing titanate coupling agent for electrophotography and method for producing said toner  
A toner composition in particle form for electrophotography comprising an inorganic material powder, e.g., a magnetic material, which is dispersed together with other additives in a binder resin...
4592989 Toner compositions containing complex ionophoric polymeric materials  
Disclosed is an electrostatic toner composition comprised of resin particles, pigment particles, and a complex of a dipolar molecule or salt attached to an ionophoric polymer.
4592990 Process for producing toner  
A process for producing toner, which comprises dispersing a monomer system comprising a polymerizable monomer and a polar polymer in a dispersion medium containing a dispersant having a charging...
4585723 Developer for electrostatic latent image and method of forming image  
A developer for developing an electrostatic latent image comprising colored electroscopic particles and at least one silicon dioxide powder having its particles made hydrophobic with a specified...
4565773 Dry nonelectroscopic toners surface coated with nonionic siloxane-oxyalkylene block copolymer  
Dry nonelectroscopic toners comprising pigmented organic resin particles having a size distribution of 0.2 to 30 micrometers, not more than 50 percent of the particles being less than 1...
4535048 Toner for development of electrostatic charges  
A toner for the development of electrostatic charges comprising an amorphous polyester having an acid value of from 10 to 100 prepared by the reaction of at least one etherified diphenol with an...
4530894 Coated magnetic toner powder  
A magnetic toner comprises magnetic powder and a coating layer to cover said powder, the layer being a reaction product between (1) a silane coupling agent containing an amino group, an isocyanate...
4517272 Electrostatic dry toner composition  
The hollow character defect in electrostatically transferred dry toner images is reduced by an electrostatic dry toner composition comprising a binder polymer and a low surface energy liquid such...
4514484 Powder for developing latent images and a method of producing the powder  
A powder suitable for developing latent magnetic images comprising magnetic particles coated with a mixture of a thermoplastic resin and a silane. A method for producing the said powder comprising...
4513074 Stable conductive developer compositions  
Disclosed is an improved stable developer composition which contains resin particles, pigment particles, colloidal silica additive particles, fatty acid metal salt additive particles, and uncoated...
4504529 Xerographic method for dry sensitization and electroless coating of an insulating surface and a powder for use with the method  
Disclosed is a method for the xerographic, pattern-wise deposition of a dielectric powder that is sensitized with a metal compound to enable the electroless plating of a pattern formed by said powder.
4496643 Two-component dry electrostatic developer composition containing onium charge control agent  
A two-component, dry electrostatic developer composition containing toner particles and coated-carrier particles is disclosed. The toner contains a binder polymer and a phosphonium, arsonium or...
4468445 Electrophotographic mixture containing toner particles and coated carrier particles  
Novel electrostatic developer compositions are provided comprising finely divided toner particles coated on carrier particles wherein the carrier particles comprise a solid core of an iron oxide...
4450221 Encapsulated lyophilic magnetic particle and resin toner  
A magnetic toner comprising nuclear particles comprising lyophilic magnetic particles and a resin having a low softening point is disclosed. Each of the nuclear particles is surrounded by a resin...
4430408 Developing powder composition containing a fluorine-modified alkyl siloxane  
Developing powder compositions containing a fluorine-modified alkyl siloxane and a surface treatment of carbon black are disclosed. The toner powders exhibit reduced sensitivity to machine...
4409312 Dry developer for electrostatic image with Al or Ti alkoxide  
Disclosed is a dry developer for an electrostatic image, which comprises molded particles of a dispersion of a binder medium, a wax and a pigment, wherein a combination or partial reaction product...
4407924 Toner complexes for developing electrostatic images  
A complex system for developing electrostatic images, and particularly a toner which comprises 100 parts by weight of a resin and for instance 0.5 to 5 parts by weight of the complex system, such...
4404271 Metal complexes for use in developers for electrostatic images, charge control function  
A complex system for developing electrostatic images, and particularly a toner which contains a metal complex represented by the formula ##STR1## wherein a or b is a benzene ring moiety or...
4404270 Positively chargeable powdered electrophotographic toner containing dialkyl tin oxide charge control agent  
A toner comprising a resin, a colorant and a positive charge control agent selected from the group consisting of mica, monoalkyl and dialkyl tin oxides and urethane compounds, said charge control...
4403027 Toner complexes for developing electrostatic images  
A complex system for developing electrostatic images, and particularly a toner which comprises 100 parts by weight of a resin and for instance 0.5 to 5 parts by weight of the complex system, such...
4397941 Dry nonelectroscopic toners for toning tacky image surfaces  
Dry nonelectroscopic toners comprising pigmented organic resin particles having a size distribution of 0.2 to 30 micrometers, not more than 50 percent of the particles being less than 1 micrometer...
4367275 Method of preventing offset of electrostatic images after fixing and developing using polyvalent metal salt polymer in toner  
A toner for development of latent electrostatic images comprising a coloring agent, a binder resin and a fixing aid, said binder resin comprising a polyvalent metal salt (b) of a...
4355088 Polyethylene pressure fixable electroscopic printing powder and pressure fixing method  
A pressure fixable toner for electrostatic image development, which can be fixed upon a receiving member by pressure, is formulated with a high density, low molecular weight polyolefin, one or...
4331756 Developer compositions with toner, coated carrier and lubricant  
Electrophotographic developer compositions containing carrier, toner and special purpose additives such as flow promoters, dry lubricants and the like are prepared by coating carrier particles...
4307169 Microcapsular electroscopic marking particles  
Electroscopic marking particles comprising microcapsules consisting of a pressure fixable core and pressure rupturable shell which is characterized by the core comprising pressure fixable material...
4304843 Dry toner with improved toning uniformity  
Toner particles of an intimate mixture of 25 to 75% by weight of substantially colorless, inert, nonelectroscopic spheroidal-shape polymer particles of size distribution in the range of greater...
4271249 Composition of matter and method for electrostatic image development  
Composition of matter for electrostatic image development and a method for developing therewith an electrostatic charge pattern of positive charge, wherein the composition consists of powder...
4206064 Negatively charged toner for developing electrostatic images containing metal complex of salicyclic acid compound as charge control agent  
A toner for developing electrostatic images comprises a metal complex of salicylic acid or a metal complex of an alkyl salicylic acid as a charge controlling agent.
4176078 Field dependent toner having chrome complex coated magnetic particles  
A method of coating pigment particles such as magnetite with a fatty acid chrome complex is disclosed. The magnetite pigments coated by this process are found to be particularly suitable for use...
4142982 Toner for developing electrostatic latent images comprising resin binder of polyester and solid silicone varnish  
A toner for developing electrostatic latent images contains a resin binder mainly composed of a polyester resin having a softening point of 80-150° C. according to the Ring and Ball method and a...
4134847 Method for the production of a color developer and the obtained color developer  
A color developer is obtained by the process which comprises heating a mixture of at least one aromatic carboxylic acid, at least one water-insoluble organic polymer and at least one oxide or...
4101686 Method of fusing toner images using functionalized polymeric release agents  
Polymeric release agents having functional groups such as carboxy, hydroxy, epoxy, amino, isocyanate, thioether or mercapto groups are applied to a heated fuser member in an electrostatic...
4031021 Magnetic toner compositions  
A magnetic toner composition for use in decorating a magnetically imaged substrate in magnetic printing machines comprising a particulate blend of between about 50% and about 99% by weight of...
4027048 Electrostatographic development  
A toner in which at least a major portion of the resin component is a soft polymer encapsulated and dispersed in a tough polymer matrix in a plurality of discrete domains, instead of as a single...
3964903 Development of electrostatic images  
A developing material for use in the development of electrostatic images comprising toner particles and carrier particles is described wherein the developing material incorporates at least one...
3898171 Electroscopic powder with sharp melting point containing sucrose benzoate and a thermoplastic resin  
An electroscopic powder having a sharp melting point which is particularly adaptable for use in high speed electrostatic copying machines is formulated with sucrose benzoate in the range of 40 to...
3873325 PRESSURE FIXABLE ELECTROSCOPIC PRINTING POWDER METHOD  
A method of fixing toner for electrostatic image development on a receiving member by pressure, with a toner formulated with a polyamide resin in the range of 25 percent to 35 percent, a frangible...
3819367 IMAGING SYSTEM  
A developer material comprising colored toner particles having a particle size less than about 30 microns and a minor proportion of submicroscopic silicon dioxide additive particles having at...
3720617 AN ELECTROSTATIC DEVELOPER CONTAINING MODIFIED SILICON DIOXIDE PARTICLES  
A developer material comprising colored toner particles having a particle size less than about 30 microns and a minor proportion of submicroscopic silicon dioxide additive particles having at...
3652315 A DEVELOPING METHOD IN ELECTROPHOTOGRAPHY USING TONER PARTICLES COATED WITH A NON-VOLATILE LIQUID  
A developing powder for electrophotography comprising toner particles coated with a non-volatile substance such as silicone oil, Teflon oil or liquid paraffin which is liquid at normal...
3609082 ELECTROSTATIC DEVELOPER PARTICLES CONTAINING RESIN, COLORANT, METAL SALT AND PHTHALATE  
A finely divided toner comprising a colorant, a thermoplastic resin comprising a vinyl resin, a solid ester of o-phthalic or m-phthalic acid and a solid metal salt of a fatty acid.
3590000 SOLID DEVELOPER FOR LATENT ELECTROSTATIC IMAGES  
An electrostatic latent image is developed by using a finely-divided, rapid melting toner comprising a colorant, a solid, stable hydrophobic metal salt of a fatty acid, and a polymeric...
3577345 SOLID XEROGRAPHIC DEVELOPER  
3740334 PROCESS OF PREPARING SOLID DEVELOPER FOR ELECTROSTATIC LATENT IMAGES  
3775326 PRESSURE FIXABLE ELECTROSCOPIC PRINTING POWDER  
3817868 POWDER COMPOSITIONS FOR DEVELOPMENT OF ELECTROSTATIC IMAGES  
3440045 ELECTROPHOTOGRAPHIC PROCESS FOR THE MANUFACTURE OF A HIGHLY HEAT-RESISTANT IMAGE  
3400000 Surface modified electrostatic enamel powders and method  
3331777 Glass frits and enamels having esterified surfaces and their preparation