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Class Information
Number: 526/64
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Polymerizing in tubular or loop reactor
Description: Subject matter under Class 520, ... wherein polymerization is effected in a loop or tubular reactor.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8710162 Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene Apr. 29, 2014
8703883 Systems and methods for real-time catalyst particle size control in a polymerization reactor Apr. 22, 2014
8703885 Method for producing a catalyst slurry blend Apr. 22, 2014
8703886 Dual activator-support catalyst systems Apr. 22, 2014
8680201 Compounding method for producing polymer compositions with a reduced content of volatile organic compounds Mar. 25, 2014
8648156 Reactor Feb. 11, 2014
8642710 Process for preparing polyolefin Feb. 4, 2014
8629223 Method for improving ethylene polymerization reaction Jan. 14, 2014
8618227 Process for improving the devolatilization of polymer slurry produced in a polymerization reactor Dec. 31, 2013
8609791 Method for replacing compatible ethylene polymerization catalysts Dec. 17, 2013
8609805 Copolyether glycol manufacturing process Dec. 17, 2013
8597582 Flashline heater system and method Dec. 3, 2013
8598283 Methods for operating a polymerization reactor Dec. 3, 2013
8580202 Slurry phase polymerisation process Nov. 12, 2013
8557931 Multistage process for the polymerization of ethylene Oct. 15, 2013
8552125 Process for the preparation of a particulate polyethylene product Oct. 8, 2013
8546496 Process for preparing a bimodal polyethylene product in a single loop reactor Oct. 1, 2013
8513365 Polymerization process with improved polymer homogeneity Aug. 20, 2013
8513367 Mitigation of elastomer reactor fouling using mechanical vibration Aug. 20, 2013
8492489 Double loop technology Jul. 23, 2013
8487053 Methods for removing polymer skins from reactor walls Jul. 16, 2013
8481657 Increased monomer conversion in emulsion polymerization Jul. 9, 2013
8475720 Method for improving a polymerization reaction by taking out and analysing a sample Jul. 2, 2013
8470250 Polyester production system employing horizontally elongated esterification vessel Jun. 25, 2013
8466240 Methods of improving crosslinkability of polyethylene polymer comprising polar comonomer and polymer compositions Jun. 18, 2013
8461280 Multi-stage process for producing multimodal linear low density polyethylene polymers Jun. 11, 2013
8455595 Dynamic pressure control in double loop reactor Jun. 4, 2013
8445599 Multi-stage process for producing polyethylene with lowered gel formation May. 21, 2013
8445606 High pressure polymerization process May. 21, 2013
8445607 Process for the preparation of a particulate bimodal polyethylene product May. 21, 2013
8436109 Process for producing steam using heat recovered from a polymerization reaction May. 7, 2013
8419971 Method for producing mechanically stable water-absorbent polymer particles Apr. 16, 2013
8415442 High pressure low density polyethylene resins with improved optical properties produced through use of highly active chain transfer agents Apr. 9, 2013
8410228 Emulsion polymerisation process Apr. 2, 2013
8399602 Polymerisation reactor, polymerisation device, method for producing bio-degradeable polyester and uses Mar. 19, 2013
8399586 Process for feeding ethylene to polymerization reactors Mar. 19, 2013
8389654 High melt flow polymer of improved durability for pipe applications Mar. 5, 2013
8378039 Method and apparatus for manufacturing polymer particle Feb. 19, 2013
8372923 Process for improving the devolatilization of polymer slurry produced in a polymerization reactor Feb. 12, 2013
8367782 Polymer stream transfer Feb. 5, 2013
8367783 Process for improving the polymerization of ethylene and one or more optional comonomer(s) in a polymerization loop reactor Feb. 5, 2013
8354482 Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same Jan. 15, 2013
8354063 Pumping apparatus and process for polymerization in loop reactors Jan. 15, 2013
8349947 Slurry phase polymerisation process Jan. 8, 2013
8344078 Continuous take off technique and pressure control of polymerization reactors Jan. 1, 2013
8334349 Method for producing thermoplastic copolymer Dec. 18, 2012
8329833 Nano-linked metallocene catalyst compositions and their polymer products Dec. 11, 2012
8324328 Slurry loop reactors Dec. 4, 2012
8318871 Process for preparing a polymer Nov. 27, 2012
8313709 Decontamination of process streams Nov. 20, 2012

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