Patent application number | Description | Published |
20080279760 | Method of making titanium dioxide particles - The disclosure provides a process for preparing nanocrystalline titanium dioxide, in particular rutile nanocrystalline titanium dioxide, comprising: (a) precipitating a mixture comprising hydrated titanium oxide and a separable filtering agent; (b) filtering the precipitated mixture to form a filter cake comprising the precipitated hydrated titanium dioxide and a separable filtering agent, (c) calcining the precipitated hydrated titanium oxide and separable filtering agent at a temperature of greater than about 300 C; and (d) removing the separable filtering agent thereby recovering titanium dioxide particles. | 11-13-2008 |
20100011990 | MESOPOROUS AMORPHOUS OXIDE OF TITANIUM - This invention pertains to a mesoporous amorphous oxide of titanium and processes of making a mesoporous amorphous oxide of titanium. | 01-21-2010 |
20100022385 | SUSPENSIONS OF SURFACE TREATED TITANIUM (IV) OXIDES AND PROCESSES FOR MAKING THEM - The disclosure relates to a process for making a surface treated suspension of finely divided titanium (IV) oxide particles, typically, finely divided titanium (IV) oxide nanoparticles, comprising:
| 01-28-2010 |
20100028252 | PROCESSES FOR THE FLUX CALCINATION PRODUCTION OF TITANIUM DIOXIDE - Processes for the production of rutile titanium dioxide from titanyl hydroxide using calcination with a flux are provided. Calcination in the presence of sodium chloride flux has been found to lower the calcination temperature used to produce the rutile form of titanium dioxide and to improve control of particle size. | 02-04-2010 |
20100055028 | SUSPENSIONS OF TITANIUM (IV) OXIDE PARTICLES AND PROCESS FOR THEIR PRODUCTION - The disclosure pertains to a process for making a suspension of finely divided titanium (IV) oxide particles, comprising: | 03-04-2010 |
20100092377 | PROCESS FOR MAKING ANATASE TITANIUM (IV) OXIDE - The disclosure pertains to a process for making anatase titanium dioxide particles, comprising:
| 04-15-2010 |
20100144518 | SELF-DEAGGLOMERATING SUSPENSIONS OF TITANIUM (IV) OXIDES AND METHODS FOR MAKING THEM - A process for making a self-deagglomerating suspension, in particular, a suspension which self-deagglomerates to form a substantially transparent suspension, of finely divided titanium (IV) oxide particles, comprising:
| 06-10-2010 |
20100247413 | LUMINESCENT SAMARIUM-DOPED TITANIUM DIOXIDE - This disclosure relates to a process for making luminescent titanium dioxide, comprising: precipitating a halide salt and a hydrolyzed compound comprising titanium from a reaction mixture comprising a source of samarium, a titanium starting material selected from the group consisting of titanium tetrachloride, titanium oxychloride, and mixtures thereof, a base selected from the group consisting of ammonium hydroxide, ammonium carbonate, ammonium bicarbonate, tetramethyl ammonium hydroxide or tetraethyl ammonium hydroxide or mixture thereof, and a solvent selected from the group consisting of ethanol, n-propanol, i-propanol, dimethyl acetamide, alcoholic ammonium halide and aqueous ammonium halide and mixtures thereof to form a precipitate; and removing the halide salt from the precipitate to recover a samarium-doped oxide of titanium. | 09-30-2010 |
20100266487 | HIGH TEMPERATURE STABLE ANATASE TITANIUM DIOXIDE - This disclosure relates to a process for making titanium dioxide in an anatase crystalline form which is stable at temperatures above 1000° C., comprising: precipitating a halide salt and a hydrolyzed compound comprising titanium from a reaction mixture comprising a titanium starting material selected from the group consisting of titanium tetrachloride, titanium oxychloride, and mixtures thereof, a base selected from the group consisting of ammonium hydroxide, ammonium carbonate, ammonium bicarbonate, tetramethyl ammonium hydroxide or tetraethyl ammonium hydroxide or mixture thereof, a solvent selected from the group consisting of ethanol, n-propanol, i-propanol, dimethyl acetamide, alcoholic ammonium halide and aqueous ammonium halide and mixtures thereof, a source of aluminum and a source of silicon to form a precipitate; and removing the halide salt from the precipitate to recover a oxide of titanium in a predominantly anatase crystalline form. The disclosure additionally relates to anatase which is stable at temperatures above 1000° C. | 10-21-2010 |
20100270503 | METHOD OF MAKING PHOTOLUMINESCENT SAMARIUM-DOPED TITANIUM DIOXIDE PARTICLES - The disclosure provides a process for preparing photoluminescent samarium-doped titanium dioxide, typically in the rutile phase, comprising: precipitating, preferably at a pH of about 2 to about 3, a mixture comprising hydrated titanium oxide, a source of samarium, and a separable filtering agent to form a precipitated mixture comprising precipitated samarium-doped hydrated titanium oxide and the separable filtering agent; filtering the precipitated mixture to form a filter cake comprising the precipitated samarium-doped hydrated titanium oxide and the separable filtering agent; calcining the precipitated samarium-doped hydrated titanium oxide and separable filtering agent at a temperature of greater than about 300° C. to form a mixture comprising samarium-doped titanium dioxide and the separable filtering agent; and removing the separable filtering agent to recover samarium-doped titanium dioxide particles. | 10-28-2010 |
20110171533 | MESOPOROUS OXIDE OF TITANIUM - This invention pertains to mesoporous oxide of titanium and processes of making mesoporous oxide of titanium particularly crystalline oxide of titanium. | 07-14-2011 |
20110232746 | THICK-FILM PASTES CONTAINING LEAD-TELLURIUM-BORON-OXIDES, AND THEIR USE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES - The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and a lead-tellurium-boron-oxide dispersed in an organic medium. | 09-29-2011 |
20110308595 | THICK-FILM PASTES CONTAINING LEAD- AND TELLURIUM-OXIDES, AND THEIR USE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES - The present invention provides a thick-film paste for printing the front-side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal, and a lead-tellurium-oxide dispersed in an organic medium. | 12-22-2011 |
20110308596 | THICK-FILM PASTES CONTAINING LEAD-TELLURIUM-LITHIUM-TITANIUM-OXIDES, AND THEIR USE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES - The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal, and a lead-tellurium-lithium-titanium-oxide dispersed in an organic medium. | 12-22-2011 |
20110308597 | THICK-FILM PASTES CONTAINING LEAD-TELLURIUM-LITHIUM- OXIDES, AND THEIR USE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES - The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal, and a lead-tellurium-lithium-oxide dispersed in an organic medium. | 12-22-2011 |
20120097071 | MESOPOROUS AMORPHOUS OXIDE OF TITANIUM - This invention pertains to a mesoporous amorphous oxide of titanium and processes of making a mesoporous amorphous oxide of titanium. This is not the same as Title | 04-26-2012 |
20120202065 | MESOPOROUS OXIDE OF TITANIUM - This invention pertains to a mesoporous amorphous oxide of titanium and processes of making a mesoporous amorphous oxide of titanium. | 08-09-2012 |
20120282165 | PROCESSES FOR THE FLUX CALCINATION PRODUCTION OF TITANIUM DIOXIDE - Processes for the production of euhedral rutile titanium dioxide from titanyl hydroxide using calcination with a flux are provided. Calcination in the presence of sodium chloride flux has been found to lower the calcination temperature used to produce the rutile form of titanium dioxide and to improve control of particle size. | 11-08-2012 |
20130068290 | CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREFROM - A conductive paste composition contains a source of an electrically conductive metal, a lead-tellurium-based oxide, a discrete oxide of an adhesion promoting element, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and lead-tellurium-based oxide. | 03-21-2013 |
20130161573 | LEAD-FREE CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH - A lead-free conductive paste composition contains a source of an electrically conductive metal, a fusible material, an optional additive, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the lead-free paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and fusible material. | 06-27-2013 |
20130255767 | THICK-FILM PASTES CONTAINING LEAD- AND TELLURIUM-OXIDES, AND THEIR USE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES - The present invention provides a thick-film paste for printing the front-side of a solar cell device having one or more insulating layers. The thick film paste comprises an electrically conductive metal, and a lead-tellurium-oxide dispersed in an organic medium. | 10-03-2013 |
20130255768 | THICK-FILM PASTES CONTAINING LEAD-TELLURIUM-BORON-OXIDES, AND THEIR USE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES - The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and a lead-tellurium-boron-oxide dispersed in an organic medium. | 10-03-2013 |
20130255769 | THICK-FILM PASTES CONTAINING LEAD-TELLURIUM-LITHIUM-TITANIUM-OXIDES, AND THEIR USE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES - The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick film paste comprises an electrically conductive metal, and a lead-tellurium-lithium-titanium-oxide dispersed in an organic medium. | 10-03-2013 |
20130255770 | THICK-FILM PASTES CONTAINING LEAD-TELLURIUM-LITHIUM- OXIDES, AND THEIR USE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES - The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick film paste comprises an electrically conductive metal, and a lead-tellurium-lithium-oxide dispersed in an organic medium. | 10-03-2013 |
20130284256 | LEAD-FREE CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH - A lead-free conductive paste composition contains a source of an electrically conductive metal, a fusible material, an optional additive, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the lead-free paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and fusible material. | 10-31-2013 |
20140060632 | USE OF A CONDUCTIVE COMPOSITION CONTAINING LEAD-TELLURIUM-BASED OXIDE IN THE MANUFACTURE OF SEMICONDUCTOR DEVICES WITH LIGHTLY DOPED EMITTERS - The present invention provides a process for using a thick-film conductive paste composition to form an electrode on a silicon semiconductor device, e.g, a photovoltaic cell, containing a lightly doped emitter. The thick-film paste comprises a source of an electrically conductive metal and a Pb—Te-based oxide dispersed in an organic medium. Also provided are devices made by the process and a photovoltaic cell comprising a lightly doped emitter and an electrode formed from the thick-film conductive paste composition. | 03-06-2014 |
20140061830 | CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH - A conductive paste composition contains a source of an electrically conductive metal, an alkaline-earth-metal boron tellurium oxide, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor device substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and establish electrical contact between it and the device. | 03-06-2014 |
20140061831 | CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH - A conductive paste composition contains a source of an electrically conductive metal, a Ti—Te—Li oxide, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and establish electrical contact between it and the device. | 03-06-2014 |
20150068598 | CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH - A conductive paste composition contains a source of an electrically conductive metal, an alkaline-earth-metal boron tellurium oxide, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor device substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and establish electrical contact between it and the device. | 03-12-2015 |
20150083217 | CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREFROM - A conductive paste composition contains a source of an electrically conductive metal, a lead-tellurium-based oxide, a discrete oxide of an adhesion promoting element, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and lead-tellurium-based oxide. | 03-26-2015 |