Kolthammer
Brian W. Kolthammer, Lake Jackson, TX US
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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 |
20120108777 | INTERPOLYMERS SUITABLE FOR USE IN HOT MELT ADHESIVES AND PROCESSES TO PREPARE THE SAME - The present invention relates to an ethylene/α-olefin interpolymer product comprising at least one α-olefin interpolymerized with ethylene and, characterized in at least one aspect, as having improved properties when utilized in a hot melt adhesive formulation. The invention also relates to a process for manufacturing the interpolymer product wherein the process comprises employing two or more single site catalyst systems in at least one reaction environment (or reactor) and wherein the at least two catalyst systems have (a) different comonomer incorporation capabilities or reactivities and/or (b) different termination kinetics, both when measured under the same polymerization conditions. The interpolymer products are useful, for example, in applications such as hot melt adhesives, and also for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers. | 05-03-2012 |
20120245400 | PRODUCING ALPHA-OLEFINS - Methods for producing alpha-olefins. The methods include selectively isomerizing an alpha-olefin to a mixture of beta-olefins and ethenolyzing at least a portion of the mixture of beta-olefins to an alpha-olefin. | 09-27-2012 |
Brian William Stiring Kolthammer, Lake Jackson, TX US
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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 Kolthammer, Cleveland Heights, OH US
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20120275657 | METHOD AND APPARATUS FOR USING TIME OF FLIGHT INFORMATION TO DETECT AND CORRECT FOR MOTION IN IMAGING SCANS - In accordance with one aspect of the invention a method and apparatus for utilizing time of flight information to detect motion during a medical imaging acquisition, such as a PET imaging acquisition, is provided. In accordance with another aspect of the invention, a method and apparatus for detecting and correcting for respiratory motion and cardiac motion in medical images, such as PET images, is provided. | 11-01-2012 |
Jeffrey A. Kolthammer, Lyndhurst, OH US
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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 |
20120076385 | OPTIMAL ENERGY WINDOWING OF SCATTERED EVENTS IN RADIONUCLIDE IMAGING - An imaging system includes storage ( | 03-29-2012 |
Jeffrey Allan Kolthammer, Cleveland Heights, OH US
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20130240721 | PET CALIBRATIONS WITH VARYING COINCIDENCE WINDOWS - When calibrating a positron emission tomography (PET) scanner, a radioactive calibration phantom is scanned over a period of several half lives to acquire a plurality of frames of scan data. Interlaced timing windows are employed to facilitate acquiring coincidence data for a plurality of coincidence timing windows and energy windows during a single calibration scan. Coincident events are binned according to each of a plurality of selected coincidence windows, and the PET scanner is calibrated for each of the plurality of coincidence timing windows using data acquired from the single calibration scan. | 09-19-2013 |
20140365189 | SIMPLIFIED METHOD FOR ROBUST ESTIMATION OF PARAMETER VALUES - A method for estimating parameter values includes acquiring image data with an imaging apparatus, deriving a parameter model function from the image data, generating a N-dimensional grid, wherein N is a number of values of one or more non-linear terms of the derived model function, pre-calculating the one or more non-linear terms given the parameter model function and the designated values of the non-linear parameters, calculating one or more remaining model terms of the parameter model function, and displaying at least one of the one or more non-linear terms and remaining linear model terms. | 12-11-2014 |