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Damme, BE

Eric Damme, Arquennes BE

Patent application numberDescriptionPublished
20080242808Interconnected Loop Reactors - The present invention describes a reactor comprising two interconnected loops wherein the growing polymer flows continuously in circuit from the first loop to the second loop through a First pipe and back to the first loop through a second pipe. It also discloses process for polymerising olefins in two interconnected loop reactors.10-02-2008
20080255323Low Gel Chromium Catalysis - The present invention discloses the use of a chromium-based catalyst system in two serially connected loop reactors for copolymerising ethylene and a comonomer, at reduced productivity, the final polyethylene having a reduced amount of gel.10-16-2008
20090221788Apparatus and Method for Degassing Polymer Powder - The present invention relates to an apparatus for degassing polymer powder comprising a chamber having a first end and a second end opposite to each other, said chamber being equipped with at least one powder inlet and at least one gas outlet at the first end and with at least one powder outlet and at least one gas inlet at the second end, and a valve provided with a powder entry and a powder exit and arranged at the powder outlet of said chamber. The apparatus is characterised in that said chamber is equipped with a gas line joining a gas exit of the valve to the inside of the chamber at a position that is at a distance h09-03-2009
20100041825Method and System for Degassing Polymer Powder - The present invention relates to a method for degassing polymer powder comprising flushing the polymer powder in a first chamber with a first flow of flushing gas, transferring the polymer powder into a second chamber and flushing the polymer powder with a second flow of flushing gas in said second chamber. The present invention also relates to a system suitable for carrying out this method.02-18-2010
20110046323Process for Monomer Recovery From a Polymerization Process - The present relates to a process for optimizing the recovery of unreacted monomers from a polymerization process, wherein said process comprises the steps of 02-24-2011

Patent applications by Eric Damme, Arquennes BE

Eric Damme, Arquenness BE

Patent application numberDescriptionPublished
20090143546Double Loop Technology - A method for controlling the injection of catalyst slurry in a polymerization reactor is described herein. The method includes the preparation of polyethylene with a solid catalyst and a hydrocarbon diluents. The method includes providing solid catalyst and a hydrocarbon diluent in one or more storage vessels such that a catalyst slurry is obtained in said vessel, transferring said catalyst slurry from said storage vessel to a mixing vessel wherein said catalyst slurry is diluted for obtaining a suitable concentration for use in a polymerization reaction, pumping said diluted catalyst slurry at a controlled flow rate from said mixing vessel to said polymerization reactor through one or more conduits, by means of a membrane pump provided in each of said conduits, and the membrane pump is controllable as a function of reactant concentration within the polymerization reactor.06-04-2009

Eric Damme, Arguennes BE

Patent application numberDescriptionPublished
20080221280Catalyst deployment in bimodal polyolefin production - Provided is a method for polymerising olefins in a double loop reactor, which method comprises the addition of fresh catalyst system into both the first and the second loop reactors thereby retrieving in a single stream, a final product consisting of two polymer components.09-11-2008

Nicole Damme, Kruishoutem BE

Patent application numberDescriptionPublished
20090306189Methods for Controlling Pests Using Rnai - The present invention relates to methods for controlling pest infestation using double stranded RNA molecules. The invention provides methods for producing transgenic cells expressing the double stranded RNA molecules, as well as compositions and commodity products containing or treated with such molecules.12-10-2009

Patent applications by Nicole Damme, Kruishoutem BE