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| Number | Title | Issue Date |
| 7442481 | Charge control agent A composition comprising a toner binder and a charge control agent comprising a sulfonation product of Solvent Blue 23, wherein from greater than 0 up to 30 mole % of the Solvent Blue 23 is sulfonated. ... | 10/28/2008 |
| 7198874 | Toner, method of making, method of using The present invention relates to a toner useful, for example, for visualizing an electrostatic latent image formed on an image bearing member by a method such as electrophotography and electrostatic recording methods. ... | 04/03/2007 |
| 7141342 | Magenta toner and process for producing magenta toner This invention provides a magenta toner obtaining a sharp color and having a high coloring power and superior transparency and light-fastness. The magenta toner of the present invention is characterized by having magenta toner particles containing at least a colorin... | 11/28/2006 |
| 7074535 | Toner, method of making, method of using The present invention relates to a toner useful, for example, for visualizing an electrostatic latent image formed on an image bearing member by a method such as electrophotography and electrostatic recording methods. In addition, the present invention also relates,... | 07/11/2006 |
| 6117606 | Use of pigment yellow 155 in electrophotographic toners and developers, powder coatings and inkjet inks C.I. Pigment Yellow 155 is used as a colorant in electrophotographic toners and developers, powder coating materials, inkjet inks, color filters and electret materials.... | 09/12/2000 |
| 5643701 | Electrophotgraphic process utilizing mutable colored composition An electrophotographic process wherein an image is formed with toner comprising a mutable colorant and an ultraviolet radiation transorber so that an image formed by the electrophotographic process can be altered in color or erased. The electrophotographi... | 07/01/1997 |
| 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 the transorber to ultraviolet radiation, to be mutable. The ... | 04/01/1997 |
| 5427884 | Developer comprising toner containing specified charge controlling agent and carrier coated with polyolefinic resin This invention relates to a two-component developer composed of at least a toner and a carrier, in which the toner contains a quaternary ammonium salt and/or a nitrogen-containing polymer and the carrier is coated with a polyolefinic resin layer.... | 06/27/1995 |
| 5362592 | Decolorizable toner A decolorizable toner including a resin binder, a near infrared ray-absorbing dye, a decolorizing agent and a light fastness stabilizer, and a process for preparing the decolorizable toner, which includes the steps of mixing the near infrared ray-absorbin... | 11/08/1994 |
| 5318872 | Toner and developer compositions with fluorophosphate charge enhancing additives A toner composition comprised of resin, pigment particles, and a distearyl dimethyl ammonium hexafluorophosphate charge enhancing additive.... | 06/07/1994 |
| 5314778 | Toner compositions containing complexed ionomeric materials A toner composition comprised of resin particles, pigment particles, and submicron colloidal domains of an ionomeric polymer or an interpolymer complex comprising a first polymer and a second polymer, preferably, independently selected from the group cons... | 05/24/1994 |
| 5225305 | Electrophotographic toner An electrophotographic toner containing a specific compound as the charge control agent is described. The electrophotographic toner according to the present invention have a sharper distribution of the amount of electrification and better moisture resista... | 07/06/1993 |
| 5147748 | Use of colorless highly fluorine-substituted phosphonium compounds as charge control agents for electrophotographic recording processes Use of colorless highly fluorine-substituted phosphonium compounds as charge control agents for electrophotographic recording processes Use of highly fluorine-substituted phosphonium compounds of the formula (I) ##STR1## in which R1 to R4 | 09/15/1992 |
| 4912006 | Electrostatic toner An electrostatic toner consists of a polymer a charge controlling component and an optional color-giving component, wherein the charge controlling agent component comprises one or more compounds of the formula `(I)`, ##STR1## ps where R1 i... | 03/27/1990 |
| 4537848 | Positively charged toner compositions containing phosphonium charge enhancing additives Disclosed are improved positively charged toner composition comprised of resin particles, pigment particles, and as a charge enhancing additive a phosphonium compound of the formula: ##STR1## wherein R1, R2, R3, and R... | 08/27/1985 |
| 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 stibonium charge-control agent dispersed in the toner binder.... | 01/29/1985 |
| 4454214 | Toner compositions containing pyridinium tetrafluoroborates This invention relates to improved positively charged toner compositions for use in developing electrostatic images contained in electrostatographic imaging devices wherein fusing is accomplished with a fuser roll fabricated from lead oxide and a vinylide... | 06/12/1984 |
| 4229512 | Toners for color flash fusers containing a permanent colorant and a heat sensitive dye A toner and imaging system wherein the utilized toner is composed of a permanent colorant of the final color desired and additionally contains heat sensitive dye that darkens the color of the toner so that it more efficiently absorbs heat during flash fus... | 10/21/1980 |
| 4126565 | Toners for color flash fusers containing a permanent colorant and a heat sensitive dye A toner and imaging system wherein the utilized toner is composed of a permanent colorant of the final color desired and additionally contains heat sensitive dye that darkens the color of the toner so that it more efficiently absorbs heat during flash fus... | 11/21/1978 |
