| Patent application number | Description | Published |
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| 20090036597 | CARBODIIMIDE COMPOUND AND USE THEREOF - An object of the present invention is to provide a carbodiimide type compound having high dispersibility and dispersion stability of pigments, fine resin particles, and pigment-resin composite fine particles particularly in a silicone dispersion medium; a pigment dispersion composition and a pigment-resin composite fine particles-containing dispersion composition preferably usable in a wide range of fields such as inks for solvent ink jet, liquid developers, and the like by using the compound; and a liquid developer using such a pigment dispersion composition and/or pigment-resin composite fine particles-containing dispersion composition. The present invention provides a carbodiimide type compound obtained by introducing a polysiloxane chain by reaction of a functional group of a polysiloxane chain-containing compound having the functional group reactive with a carbodiimide group with a carbodiimide group of a carbodiimide compound having a carbodiimide equivalent weight of 100 to 50000. | 02-05-2009 |
| 20090212237 | COMPOSITION FOR DETERMINATION OF IONIZING RADIATION ABSORBED DOSE AND USE THEREOF - For providing a composition for ionizing radiation determination that realizes determination of absorbed dose simply in enhanced quantitative manner while avoiding any influences from visible light, ultraviolet rays, etc. with the use of a composition for determination of ionizing radiation absorbed dose being highly responsive to ionizing radiation, there is provided a composition for determination of ionizing radiation absorbed dose containing a material capable of coloring or discoloring upon exposure to ionizing radiation, characterized by further containing zinc oxide. | 08-27-2009 |
| 20090246678 | LIQUID DEVELOPER - It is an object of the present invention to provide a liquid developer in which in liquid developers for electrophotography or electrostatic recording obtained using the coacervation method, electric resistance of the liquid developer and the electrophoretic property or the charging characteristic of the toner particles are adequately maintained, and the dispersibility of a pigment and the dispersion stability of the toner particles are good. | 10-01-2009 |
| 20100136474 | PROCESS FOR PRODUCTION OF LIQUID DEVELOPER, AND LIQUID DEVELOPER PRODUCED BY THE PROCESS - Disclosed is a process for production of a liquid developer for use in electrophotograph or electrostatic recording by coacervation method. The process can produce a liquid developer in which a coloring agent (e.g., a pigment) is included completely within a resin particle by distillation of a solvent while retaining the state where the coloring agent are finely dispersed and the resulting colored resin particle is small in particle size and has an excellent dispersion stability, and which has excellent optical properties. The process comprises preparing a mixture containing a pigment, a resin having a fixability, a solvent (A) which can dissolve the resin therein, a hydrocarbon solvent (B) which cannot dissolve the resin therein and has an SP value lower than that of the solvent (A) and at least one dispersing agent which is soluble in both of the solvents (A) and (B), and distilling away the solvent (A) from the mixture to cause the resin dissolved in the mixture to precipitate, whereby a colored resin particle having the pigment included therein is dispersed in the solvent (B). | 06-03-2010 |
| 20100136475 | PROCESS FOR PRODUCTION OF LIQUID DEVELOPER, AND LIQUID DEVELOPER PRODUCED BY THE PROCESS - Disclosed is a process for production of a liquid developer for use in electrophotograph or electrostatic recording by coacervation method. The process can produce a liquid developer in which a coloring agent (e.g., a pigment) is included completely within a resin particle by distillation of a solvent while retaining the state where the coloring agent are finely dispersed and the resulting colored resin particle is small in particle size and has an excellent dispersion stability, and which has excellent optical properties. The process comprises preparing a mixture containing a pigment, a resin having a fixability, a solvent (A) which can dissolve the resin therein, a hydrocarbon solvent (B) which cannot dissolve the resin therein and has an SP value lower than that of the solvent (A), at least one dispersing agent (A) which is soluble in both of the solvents (A) and (B), and at least one dispersing agent (B) which is soluble in the solvent (A) but insoluble or poorly soluble in the solvent (B), and distilling away the solvent (A) from the mixture to cause the resin dissolved in the mixture to precipitate, whereby a colored resin particle having the pigment included therein is dispersed in the solvent (B). | 06-03-2010 |
| 20100323291 | METHOD FOR PRODUCING LIQUID DEVELOPER - The present invention provides a method for producing a liquid developer for electrophotography or electrostatic recording obtained by a coacervation method, which sufficiently maintains the charging property and has good dispersion stability of colored resin particles, as well as a liquid developer obtained by the method. | 12-23-2010 |
