Patents for C08F 6 - Post-polymerisation treatments (8,582)
11/2004
11/25/2004WO2004101657A1 Method for the production of polymer powders
11/25/2004WO2004101636A2 A method for preparing styrene and maleimide copolymer using super critical fluid
11/25/2004WO2004101462A1 Method for producing polymer powders
11/25/2004WO2004101128A2 Apparatus for preparing polyolefin products and methodology for using the same
11/25/2004US20040236040 Continous gas-phase polymerization process
11/25/2004DE10084756T5 Verfahren zur Herstellung von Polymeren auf Basis von Vinylcaprolactam Process for the preparation of polymers based on vinylcaprolactam
11/24/2004EP1479700A1 Processes for preparing photoresist compositions
11/24/2004EP1319030B1 Process for producing fluoroelastomers
11/24/2004CN1176954C Method for stabilizing fluorocopolymers
11/18/2004DE20320279U1 Removal unit for unwanted substances from a process product, comprises an autoclave with a gas evacuation unit, vacuum pumps, a control unit, and temperature sensors
11/17/2004EP1082357B1 Method for olefin polymerization with recycling of co-catalyst
11/17/2004CN1547594A Moldings of fluororubbers and process for their production
11/16/2004US6818186 System for removing heavies from diluent recycled to a slurry polymerization reactor
11/11/2004WO2004096890A1 Process for reducing caprolactam and its oligomers in nylon-6 pre-polymer
11/11/2004US20040225096 Process for the manufacture of thermally stable PVDF
11/11/2004US20040225095 catalytic polymerization of vinylidene fluoride in aqueous dispersion in presence of transfer agent, persulphate as initiator, surfactant, and paraffin wax, in which sodium acetate and potassium alkylsulfonates are added, atomizing, then washing
11/11/2004US20040225087 Apparatus for preparing polyolefin products and methodology for using the same
11/11/2004US20040225084 Exothermic addition polymerization; separation, circulation, mixing streams
11/11/2004US20040225083 Catalyst removal, washing system; settling vessel; catalyst killing; conduit for fluid flow
11/11/2004US20040225060 gelation inhibition and curing agents; removal of solvent; vacuum evaporation; powder coating
11/11/2004DE10318109A1 Verfahren und Vorrichtung zur Herstellung elastomermodifizierten Thermoplasten Method and apparatus for producing elastomer-modified thermoplastics
11/11/2004DE10318107A1 Wässrige Klebstoff-Dispersionen Aqueous adhesive dispersions
11/10/2004EP1475079A1 Stable polymer concentrate and process for its preparation
11/10/2004EP1474470A2 A process for the reduction of the residual monomer content and enhancement of the wet strength of articles formed from water absorbent crosslinked polymer foams and use thereof
11/10/2004EP1474229A1 Continuous slurry polymerisation process using a loop reactor
11/10/2004CN1175004C Method for reducing oxygen content in material of recovering system of polybutadiene rubber device
11/09/2004US6815511 Feeding olefin monomer to loop reaction zone, polymerizing to produce fluid slurry of solid olefin polymer particles, continuously withdrawing portion of slurry through lines, monitoring pressure in lines, opening inactive line if needed
11/04/2004US20040220382 Process and device for manufacturing an aromatic alkylene polymer
11/04/2004US20040216241 Trimodal combination of alkoxylated fatty alcohols; fatliquoring leather; reduced levels of volatile constituents; automotive upholstery
11/03/2004EP1117701B1 Method for eliminating formamide from polymerizates containing n-vinyl formamide units
11/03/2004CN1542027A Method for preparing high molecular weight polyacrylamide dried powder
11/03/2004CN1541742A Crib slot and falling film volatilization tower
11/03/2004CN1174032C Water re-dispersible granules comprising active matter in liquid foam
10/2004
10/28/2004WO2004092226A1 Method for the reduction of the residual monomer content in aqueous polymer dispersions
10/28/2004WO2004067688A3 Process for refining crude resin for electronic material
10/28/2004US20040214982 Process for reducing caprolactam and its oligomers in nylon-6 pre-polymer
10/28/2004DE10317434A1 Reducing the residual monomer content in aqueous polymer dispersions involves post-treatment by addition of an initiator system containing an inorganic salt of persulfuric acid, a methylketone and optionally a catalytic metal ion
10/28/2004DE10316615A1 Reducing residual monomer content in semi-continuous emulsion polymerization to produce acrylate or styrene-acrylate copolymers involves addition of a (meth) acrylate
10/27/2004EP1471093A1 Process and apparatus for producing thermoplastic resins modified with an elastomer
10/27/2004EP1471080A2 Process for stripping polymer dispersions or solutions
10/27/2004EP1471076A1 Aqueous adhesive compositions
10/27/2004EP1299425A4 Continuous, solvent-free process for making copolymers of maleic anhydride and c 1-4? alkyl vinyl ether
10/27/2004EP1198486A4 Solvent-free, fine white powders of a copolymer of maleic anhydride and a c1-c4 alkyl vinyl ether substantially free of poly(alkyl vinyl ether) homopolymer
10/26/2004US6809174 Process for reclaiming residual ethylene in the preparation of vinyl ethylene copolymers
10/26/2004US6809167 Forming improved flowability gas chromatography column supports
10/21/2004WO2004050727A8 Directly polymerized low molecular weight granular polytetrafluoroethylene
10/21/2004US20040209999 Synthesis of polypeptides by amidation of amino acids and chlorotrityl chloride linking
10/20/2004EP1468026A1 Process and apparatus for the technical fractionation of oligomers and polymers
10/20/2004EP1467854A1 Orthopaedic device and method for making same
10/19/2004US6806350 Which contains a deprotonation step or one or more deprotonation and reprotonation steps
10/19/2004US6806324 High solids slurry polymerization using heat exchange to condense the flashed diluent
10/14/2004DE10315184A1 Verfahren zur Herstellung von stabilen Polymer-Konzentraten A process for the preparation of stable polymer concentrates
10/14/2004DE10315183A1 Verfahren zur Herstellung von stabilen Polymer-Konzentraten A process for the preparation of stable polymer concentrates
10/14/2004DE10315182A1 Production of a liquid concentrate comprising a vinylpyrrolidone/2-acrylamido-2-methylpropanesulfonate-type copolymer, e.g. for cosmetic use, comprises adding a solvent and distilling off the polymerization medium
10/13/2004EP1466928A1 Process for producing water-absorbing resin
10/13/2004EP1086148B1 Centrifugal method and apparatus for devolatilizing polymers
10/13/2004CN1537143A Poiymer compositions having improved property constancy
10/13/2004CN1537124A Polymer suitable for photoresist compositons
10/13/2004CN1537120A Degassing process
10/13/2004CN1170611C Method and installation for extracting monomer from aqueous slurry containing polymer
10/12/2004US6803434 Providing a reaction mixture of an ethylenically unsaturated anhydride monomer, a ethylenically unsaturated non-anhydride monomer, a free radical initiator and an alkyl substituted tetrahydrofuran solvent, polymerizing the reaction mixture
10/07/2004WO2004085496A1 Color-stable superabsorbent polymer composition
10/07/2004WO2004085492A1 Process for producing fluorocopolymer
10/07/2004WO2004085041A1 Process for reducing the content of water-soluble salts of aqueous solutions of polymers containing vinylamine groups and use of the desalted polymers in the manufacture of multicomponent superabsorbent gels
10/07/2004US20040198928 Continuous slurry polymerization volatile removal
10/06/2004EP1464659A1 Process for preparing stable polymer concentrates
10/06/2004EP1464658A1 Process for preparing stable polymer concentrates
10/06/2004EP1084156B1 Method for reducing the c1-c2-aldehyde content formed from compounds with -ch2-chr-o- or -ch2-ch(oh)-groups
10/06/2004CN1535284A Method for producing polymer compositions, polymer compositions obtained by using this method, and use thereof
10/06/2004CN1535257A Method for processing of liquid reaction discharge of cationic polymerisation of isobutene
10/06/2004CN1169842C Method of diminishing unreacted monomer in vinyl polymer and toner resin reduced in unreacted monomer content
10/05/2004US6800725 Catalytic hydrogenation of polymer; discoloration inhibition, oxidation resistance
10/05/2004US6800698 Continuously separating polymer solids from liquid medium, drying polymer, and recovering diluent and unreacted monomers with reduction in compression needed for diluent vapor condensation to liquid diluent for reuse in process
10/05/2004US6800696 slurry polymerization followed by heat treatment in the absence of oxygen to form a copolymer containing 0.5% by weight or less of solvent
10/05/2004CA2081105C Method of improving the oxidative thermal stability of ethylene polymers
09/2004
09/30/2004WO2004083262A1 Method of purifying powdery resin
09/30/2004WO2004083261A1 Method for separating transition metals from polymers
09/30/2004WO2004082362A2 Methods for extending amorphous photorefractive material lifetimes
09/30/2004US20040192878 Melt processability; crystal grains; high speed heating; nitrogen gas flow; thin films
09/30/2004US20040192860 Method and apparatus for high solids slurry polymerization
09/30/2004DE10312278A1 Verfahren zur Abrennung von Übergangsmetallen aus Polymeren Process for the burn has of transition metals of polymers
09/29/2004CN1533403A Process for producing powdery linear polymer having inproved powder properties
09/23/2004WO2004081094A1 Method for the recovery of a vinyl alcohol polymer in solution
09/23/2004WO2004081062A1 Method for producing modified polyolefin solution
09/23/2004WO2004081060A1 Process for producing butene oligomer
09/22/2004EP1460090A1 Processes for production of powdered fluororesins bearing curable functional groups and coating compositions containing the same
09/22/2004EP1458768A1 Additive for rendering inert acidic or halogen-containing compounds contained in olefin polymers
09/21/2004US6794550 Forming aqueous emulsion of vinylidene fluoride and tetrafluoroethylene and at least one other fluorine containing monomer, a free radical initiator, a fluorinated surfactant, a base, concentrating to form solids-rich elastomer
09/21/2004US6794488 Cleaning with liquid of 2-propanol or mixture of 2-propanol and water; eliminates organic impurities, ionic impurities, metallic impurities, and particles of the resin
09/21/2004US6794467 Crosslinking; free radical catalyst; swelling with alcohol; disposable products; diapers, sanitary napkins
09/21/2004US6794461 Transition metal complex catalyst
09/16/2004WO2004078796A1 Method of manufacturing water absorbing resin and drying apparatus used for the method
09/16/2004WO2004078680A2 Method for reducing the allergenic protein content of natural rubber latex articles
09/15/2004EP1456257A1 Addition of organic initiators during the pressure drop in vinyl chloride monomer polymerization
09/15/2004EP1133340B1 Counterflow stripping tube
09/15/2004EP1123329B1 Hydrophilic hydrogels with a high swelling capacity and method for producing and using them
09/15/2004CN1529688A Solid mixtures of alpha-hydroxycarbonyl derivatives of alpha-methylstyrene oligomers and theire use
09/15/2004CN1166444C Continuous slurry polymerization volatle removal
09/08/2004EP1454927A1 Process for making thermally stable pvdf
09/08/2004EP1454923A1 Process for preparation of thermally stable PVDF
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