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5171653 Electrostatic developing composition with carrier having external additive  
Disclosed is a developer composition which consists essentially of a toner consisting essentially of a resin, a colorant, and colloidal silica external additive particles and a carrier consisting...
5166041 Near infrared ray-decolorizable recording material  
The present invention relates to a near infrared ray-decolorizable recording material comprising a near infrared ray-absorbing cationic dye-borate anion complex having the formula (I): ##STR1##...
5153092 Processes for encapsulated toners  
A process for the preparation of encapsulated toners which comprises blending core momomer or monomers, free radical initiator, pigment, and an oil soluble shell monomer; dispersing the resulting...
5145762 Processes for the preparation of toners  
A process for the preparation of toner compositions which comprises melt blending toner resin particles, magnetite particles, wax, and charge additives; adding to the aforementioned mixture a...
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...
5143811 Toner composition for developing an electrostatic latent image and an image-forming method using the same  
The present invention provides a toner composition comprising a toner and a hydrophobic silica composed of a fine powder of silica treated with a compound having a polymethylsilyl group in the...
5110704 Toner for developing statically charged images and process for preparation thereof  
Disclosed is a toner for developing a statically charged image, which comprises a fixing resin and, dispersed therein, a colorant and a charge-controlling dye. This toner is characterized in that...
5102763 Toner compositions containing colored silica particles  
Disclosed is a dry toner composition which comprises a resin, hydrophilic silica particles having dyes covalently bonded to the particle surfaces through silane coupling agents, and a polymer...
5082761 Set of electrophotographic toners  
A set of electrophotographic toners used for electrophotographic machines are disclosed which comprise an initial supply toner and a supplementary toner, both of which are composed of toner powder...
5061589 Toner for electrophotography  
A toner for electrophotography containing a compound represented by the following formula (1) ##STR1## wherein R represents an alkyl group, --A-- represents --O--COCHCH-- or --S--CH2 CH2 -- and L...
5059505 Resin particles  
Disclosed is a process for preparing polymer particles suitable for electrophotographic toner. The substantially spherical resin particles have a weight average particle size of 1 to 30 microns...
5034297 Bound metal alkoxide coated toner particles  
A toner powder composition is provided wherein the toner particles are coated with a metal alkoxide. The product powder displays improved flow characteristics. The coating is accomplished by...
5032483 Electrophotographic red toner  
A red color toner for electrophotography comprising a binder resin and a colorant component comprising C.I. Pigment Red 48:1, or C.I. Pigment Red 48:1 and a second red pigment which may be C.I....
4994341 Organometallic compounds as mottle prevention additives in liquid electrostatic developers  
Electrostatic liquid developer consisting essentially of (A) nonpolar liquid, Kauri-butanol value less than 30, (B) particles of thermoplastic resin having free carboxyl groups (<30μm ave particle...
4985328 Dry toner, dry developer and process for forming electrophotographic images  
A dry toner composition comprising (A) a binder resin, (B) a colorant and (C) charge control agents comprising a special metal complex of oxycarboxylic acid (C-1) and a special metal complex of...
4965172 Humidity-resistant proofing toners with low molecular weight polystyrene  
This invention concerns a method for color development of a surface having imagewise tacky and nontacky image areas which comprises (a) applying a dry nonelectroscopic toner to the image-bearing...
4960665 Toner and developer compositions containing additives with certain morphologies  
A toner composition comprised of resin particles, and a component with a sponge, or non-flake like morphology selected from the group consisting of metal salts, metal salts of fatty acids, and...
4960666 Toner and developer compositions with polysilylenes  
A toner and developer composition comprised of polysilylenes, poly(germylenes), or mixtures thereof.
4957774 Method of heat-fixing toner image  
A method of heat-fixing a visible image of toner to a recording medium comprises applying a toner image onto the recording medium, wherein the toner to form said toner image or the resin component...
4957841 Specifically influencing the triboelectric effect of azo pigments  
Process for specifically influencing the triboelectric effect of azo pigments in electrophotographic toners or developers or in powders for surface coating by adding to the azo pigments at the...
4954411 Static latent image development toner  
There is described a novel toner for developing static latent image, of which relaxation time is adjusted to 5 through 20 milliseconds at 100 KHz of frequency. The toner is perfectly compatible...
4943506 White toner comprising titanium oxide of specified size  
This invention provides white toners for use in forming images by dry process comprising titanium dioxide with 0.20-0.35 μm in mean particle size.White toners of the invention are excellent in...
4939061 Toner compositions with negative charge enhancing additives  
A negative charged toner composition comprised of resin particles, pigment particles, and as a charge enhancing additive dithiolene complexes of the formulas of FIGS. 1,2,3 or 4, wherein X is...
4935324 Imaging processes with cold pressure fixable toner compositions  
A process of imaging which comprises (1) generating an image; (2) developing the image formed with a single component pressure fixable toner composition with a resistivity of from about 104 to...
4921771 Toner for use in developing electrostatic images containing polypropylene  
A toner for developing electrostatic images is disclosed which comprises a coloring agent, a styrene homopolymer or copolymer with a vinyl monomer or moners, and polypropylene having a number...
4920023 Stable color developer compositions and process for the preparation thereof  
A process for the preparation of stable developer compositions, which comprises treating coated carrier particles with metal salts, or metal salts of fatty acids, and thereafter admixing these...
4912003 Reverse development method  
A reverse development method comprising the steps of forming electrostatic image on the surface of an image-bearing member; supplying a developer comprising chargeable magnetic toner based on...
4886725 Toner composition containing organotin oxide  
A triboelectrically chargeable composition for use in development of electrostatic latent images. The composition contains an organotin oxide represented by the formula: ##STR1## wherein R1 and R2...
4873185 One-component toner for dry electrophotography containing metal complex as charge control agent  
A toner for dry electrophotography comprises a binder resin, a metal complex compound (A) of an aromatic hydroxycarboxylic acid having a lipophilic group, and a metal complex salt-type monoazo dye...
4871616 Surface-treated poly methyl silsequoxane powder  
A surface-treated poly methyl silsesquioxane powder characterized by surface-treatment with an agent comprising a compound which has at least two radicals attached to a metal atom or a silcon...
4845003 Toner for developing electrostatic latent images and complex compounds containing aluminum usable therein  
A toner for developing electrostatic latent images characterized in that the toner comprises an aluminum compound of a hydroxycarboxylic acid which may be substituted with alkyl and/or aralkyl.
4837105 Imaging process with prevention of toner spots  
An electrophotographic imaging process which comprises the formation of a latent image on a photoconductive imaging member; thereafter developing the image with a toner composition comprised of...
4828954 Toner composition with treated inorganic powder  
A toner composition is disclosed, which contains an inorganic powder having been subjected to surface treatment with a compound having an onium salt structure, containing no polymerizable...
4824752 Electrophotographic magnetic dry developer containing cerium oxide and hydrophobic silica  
A magnetic dry developer, comprising negatively chargeable insulating magnetic toner particles containing, at least, a binder resin, a magnetic substance, and an organo-chromium or -zinc complex;...
4824750 Toner compositions with a crosslinked resin component  
A developer composition comprised of crosslinked styrene copolymers with an insoluble gel content of from about 20 to about 60 percent, pigment particles, low molecular weight wax components,...
4820604 Toner and developer compositions with sulfur cotaining organopolysiloxane waxes  
A toner composition comprised of resin particles, pigment particles, and a sulfur containing organopolysiloxane wax, such as those with (1) at least three mole percent of siloxane units of the...
4814253 Toner compositions with release agents therein  
Disclosed is an encapsulated toner composition comprised of (1) domains containing a polymer component having dispersed therein a release composition; and thereover (2) a host resin component...
4810610 Conductive single component cold pressure fixable magnetic toner compositions  
Disclosed are single component conductive cold pressure fixable toner compositions with a resistivity of from about 5×104 to about 107 ohm-cm for ionographic development systems and comprised of a...
4789615 Toner compositions with nicotinate charge enhancing additives  
Negatively charged toner compositions comprised of resin particles, pigment particles, and as a charge enhancing additive metal salts of the following formula: ##STR1## wherein R is selected from...
4789613 Electrostatic image developing toner with high dielectric material  
A developing toner composition is effectively prepared by dispersing in a polymerizable monomer a charge controller, a coloring agent and a highly dielectric material having a dielectric constant...
4762763 Toner for developing electrostatic latent image  
This invention relates to a toner for developing an electrostatic latent image, which contains a coloring agent, a binder resin and a charge controlling agent as the main components, said charge...
4758491 Dry toner and developer composition  
The image transfer properties and other properties of a fusible dry toner composition are improved by blending the binder resin of the toner with a multiphase polyorganosiloxane block or graft...
4756991 Fluorescent toners surface coated with polymeric quaternary ammonium compound and slip agent  
Fluorescent dry nonelectroscopic toner comprising fluorescent pigmented organic resin particles having a size distribution of 0.2 to 50 micrometers, surface coated with at least 0.1% by weight of...
4741984 Positively chargeable developer  
A positively chargeable developer, comprising: positively chargeable toner particles, positively chargeable silicate fine powder having a positive triboelectric chargeability higher than that of...
4740443 Encapsulated electrostatic toner with locally attached non-magnetic inorganic particles  
An encapsulated toner for development of electrical latent images comprises a core particle containing a colorant and a soft solid material, inorganic fine particles attached to the vicinity of...
4737432 Positively chargeable toner and developer for developing electrostatic images contains di-organo tin borate charge controller  
A positively chargeable toner for developing electrostatic images in electrophotography, electrostatic recording, electrostatic printing, etc. The toner contains a binder resin, a colorant or...
4737434 Process for colored toners with selected triboelectric characteristics  
A process for generating consistent high quality colored images for extended periods consisting essentially of (1) providing a xerographic imaging or printing apparatus; (2) adding thereto a...
4702986 Electrophotographic method uses toner of polyalkylene and non-magnetic inorganic fine powder  
A dry developer for developing electrostatic images comprises (a) toner particles comprising 100 parts by weight of a binder resin and 1-20 parts by weight of polyalkylene having a ratio of weight...
4698290 Process for energy reduction with flash fusing  
Disclosed is a process for affecting a reduction in the energy needed for accomplishing the flash fusing of a developed image which comprises (1) providing a toner composition with resin...
4647522 Toner compositions containing certain cleaning additives  
A toner composition consisting essentially of resin particles, pigment particles, and oxide particles selected from the group consisting of individual additive particles of silicon oxides,...