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Kolthammer
Brian W. Kolthammer, Lake Jackson, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090078910 | FUNCTIONALIZED LONG-CHAIN OLEFIN MIXTURES AND USES THEREFOR - Novel mixtures of long-chain (C10-C20) olefins are functionalized by conversion to aldehydes using an OXO process, or to sulfates, sulfonates, sulfones, sulfides, or sulfoxides by direct sulfonation. The aldehydes may then be hydrogenated to form alcohols, or aminated to form amines or amides. The olefins starting mixture may be acquired as a byproduct of the tetramerization of ethylene in the presence of certain chromium-containing tetramerization catalysts. The functionalized mixtures, and derivatives prepared therefrom such as alkoxylates prepared from the alcohols, may be useful as surfactants that may offer improved performance in many applications, while their preparation based on a byproduct mixture reduces their cost and also reduces waste-handling issues for this non-targeted stream. | 03-26-2009 |
Brian William Stiring Kolthammer, Lake Jackson, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20120041241 | OLIGOMERISATION OF OLEFINIC COMPOUNDS IN THE PRESENCE OF AN ACTIVATED OLIGOMERISATION CATALYST - This invention relates to the oligomerisation of olefinic compounds in the presence of an activated oligomerisation catalyst. The invention also extends to a particular manner for providing an activated oligomerisation catalyst. According to the present invention, there is provided a process for producing an oligomeric product by the oligomerisation of at least one olefinic compound, the process including (a) providing an activated oligomerisation catalyst by combining, in any order, iii) a source of chromium, ιv) a ligating compound of the formula (R | 02-16-2012 |
Brian W. S. Kolthammer, Lake Jackson, TX US
Jeffrey A. Kolthammer, Lyndhurst, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20080285828 | Method and System for Pet Image Reconstruction Using Portion of Event Data - A method and system for use in positron emission tomography, wherein a list-based reconstructor means ( | 11-20-2008 |
| 20090324042 | METHOD AND SYSTEM FOR IMPROVED TOF PET RECONSTRUCTION - A time of flight positron emission tomography apparatus ( | 12-31-2009 |