Patents for C08F 6 - Post-polymerisation treatments (8,582)
02/2003
02/06/2003US20030027944 Olefin monomer, diluent and catalyst are circulated in a continuous loop reactor and product slurry is recovered by means of a continuous product take off.
02/06/2003US20030024856 Using zeolite
02/05/2003EP1280845A1 Method for isolating polymer resin from solution slurries
02/05/2003EP1280830A2 Highly functionalized polymers and a process for making the same
02/05/2003EP1086147A4 Process for producing purified solutions of blocked polyhydroxystyrene resin
02/04/2003CA2088585C Monomeric recovery from polymeric materials
01/2003
01/31/2003WO2002014385A1 Method for producing polyisobutenes
01/31/2003CA2418032A1 Preparation of polyisobutylenes
01/30/2003WO2002010229A1 Water-soluble or water-swellable, associatively thickening copolymers containing sulfo groups, method for producing the same and use thereof
01/30/2003US20030023030 Working up of polymer sysnthesis solutions
01/30/2003US20030023015 Process for producing fluoroionomer, method for purification and concentration of the ionomer, and method of film formation
01/30/2003US20030023011 Polymerizing, in a loop reaction zone, olefin monomer and olefin comonomer different from said monomer in a liquid diluent to produce a fluid slurry comprising liquid diluent and solid olefin polymer particles; maintaining; withdrawing
01/30/2003US20030023010 High polymer solids slurry polymerization
01/30/2003US20030023009 Polymerizing, in a loop reaction zone, olefin monomer and olefin comonomer different from said monomer in a liquid diluent to produce a fluid slurry comprising liquid diluent and solid olefin polymer particles; maintaining; withdrawing
01/29/2003EP1279694A1 Coagulation process of PTFE latex
01/29/2003EP1279681A2 Coagulation and purification process of thermoprocessable tetrafluoroethene copolymers
01/29/2003CN1394211A Epoxidized thermoplastic polymers and processes for their production
01/29/2003CN1393291A Process for preparing strong acid cation-exchange resin
01/29/2003CN1100071C Process for preparing low-molecular, highly reactive polyisobutylene
01/28/2003US6512089 Process for working up aqueous dispersions of fluoropolymers
01/28/2003US6512077 Polycarbonate-base flame-retardant resin composition
01/28/2003CA2099659C Fluid assisted devolatilization
01/23/2003US20030018090 Method for preparation of strong acid cation exchange resins
01/23/2003US20030015094 Slurry tray and slurry tray assembly for use in fractionation towers
01/22/2003EP1277780A1 Treatement of polymer solutions after synthesis
01/22/2003EP1276779A1 Ultra-clean fluoropolymers
01/16/2003US20030013842 Water-soluble polymers of esters made from acrylic acid and methacrylic acid and alkylpolyalkylene glycols
01/16/2003US20030013831 Novel polymer suitable for photoresist compositions
01/16/2003US20030013815 Using peroxy compound
01/16/2003US20030012705 Wherein monomer, at least one olefin comonomer different from the olefin monomer, diluent and catalyst are circulated in continuous loop reactor and product slurry is recovered by means of continuous product take off
01/15/2003EP1274771A1 Method of making an aqueous dispersion of fluoropolymers
01/15/2003EP1274741A1 Method and device for removing volatile components from polymer materials
01/14/2003US6506845 Addition polymerizing conjugated diene; graft polymerizing ethylenically unsaturated monomer onto core; second rubber substrate has higher gel content; narrow particle size distribution
01/09/2003WO2003002618A1 Water-absorbent carboxyl-containing polymers with low monomer content
01/08/2003EP1273597A2 Aqueous dispersions of fluoropolymers
01/08/2003EP1272545A1 Polyamide composition and method for producing the same
01/03/2003WO2002048200A3 A process for making high purity translucent perfluoroelastomer articles
01/02/2003EP1270609A2 Method for preparation of strong acid cation exchange resins
01/02/2003EP1268626A1 A porous, molecularly imprinted polymer and a process for the preparation thereof
01/02/2003EP1268573A1 Process for working up aqueous dispersions of fluoropolymers
01/02/2003EP1268563A1 Process for the preparation of functionalised polymer particles
01/02/2003EP1268026A2 Polymer solution preheater and method for preheating such solutions
01/01/2003CN1097825C Ethylene polymer composition for cable
01/01/2003CN1097599C Process for polymerising olefin in gas phase
01/01/2003CN1097472C Method for evaporating polymer solutions of thermoplastic polymers
12/2002
12/27/2002WO2002085832A3 Solid mixtures of alpha-hydroxycarbonyl derivatives of alpha-methylstyrene oligomers and their use
12/27/2002WO2002053605A3 Water absorbent resin particles of crosslinked carboxyl-containing polymers with low monomer content
12/26/2002US20020198349 Releasing a monomer-template reaction mixture into a liquid suspending medium containing polymerization initiator system such that polymerization of each droplet is completed in suspending medium; recovering imprinted polymer
12/19/2002WO2002100945A1 Polymer compositions
12/19/2002US20020193500 Method of Making An Aqueous Dispersion of Fluoropolymers
12/19/2002US20020193481 Method to decrease aldehyde content in polyolefin products
12/19/2002CA2449557A1 Polymer composition
12/18/2002CN1386121A High-purity fluoropolymers
12/17/2002US6495648 Low odor and excellent charging stability as toners, containing styrene-acrylic copolymers or mixtures thereof, wherein the total content of volatile components is no greater than about 1,500 ppm, the content of volatile
12/17/2002US6495634 Propylene polymers
12/12/2002US20020188098 Method for reducting the polymer content of effluent during the drainage of polymer/ water mixtures
12/12/2002US20020188093 For addition to cements as plasticizer and grinding aid
12/12/2002US20020188081 Ethylenically unsaturated monomers are polymerized by initiators with a transferable halogen and transition metal catalysts in the presence of ligands which form a coordination compound, and reacting with a nitrogen compound
12/12/2002US20020187081 High solids, high ethylene slurry polymerization
12/11/2002EP1263799A1 A process for removing hydrogenation catalyst residue from hydrogenated polymers
12/11/2002CN1384843A Method for producing highly reactive polyisobutenes
12/05/2002WO2002096959A1 Method for producing polymer compositions, polymer compositions obtained by using this method, and the use thereof
12/05/2002WO2002096958A1 Method for the production of polymer compositions with reduced halogen content, reduced-halogen polymer compositions and utilization thereof
12/05/2002WO2002096954A1 Preparation of hydrophilic polymer powders with low grain size distribution
12/05/2002US20020182121 Continuous slurry polymerization volatile removal
12/04/2002EP1261873A1 Compositions and methods for surface imprinting
12/03/2002US6489419 Non-dusting molding powders with a bulk density of more than 450 g/l are obtained when a suspension polymer of tetrafluoroethylene with a content of 0.01 to 1% by weight of units of at least one perfluoro(alkyl-vinyl) ether is ground
11/2002
11/28/2002DE10125238A1 Wasserlösliche Polymerisate von Estern aus Acrylsäure, Methacrylsäure und Alkylpolyalkylenglykolen Water-soluble polymers of esters of acrylic acid, methacrylic acid and alkylpolyalkylene
11/28/2002DE10125237A1 Wasserlösliche Polymerisate von Estern aus Acrylsäure und Alkylpolyalkylenglykolen Water-soluble polymers of esters of acrylic acid and alkylpolyalkylene
11/27/2002EP1260536A1 Water-soluble polymers from esters of acrylic acid, methacrylic acid and alkyl polyalkylene glycols
11/27/2002EP1260535A1 Water-soluble polymers from esters of acrylic acid and alkylpolyalkylene glycols
11/26/2002US6486281 Process for preparing high-purity vinylpyrrolidone polymer
11/26/2002US6486271 Method of controlling molecular weight distributions during a polymerization process
11/26/2002US6485607 Methods for removing volatile components from polymer solutions
11/21/2002WO2002092651A1 Polymer suitable for photoresist compositions
11/21/2002WO2002092642A1 Method for the separation of oligomeric n-substituted (meth)acrylamide compounds and conjugates thereof which are reversibly thermally precipitating
11/21/2002US20020173598 Continuous slurry polymerization process and apparatus
11/14/2002US20020169277 Carried out at a temperature not higher than the solidifying point of the material for cement additive polymer
11/13/2002EP1255998A1 Molecular impriniting compositions and methods for binding and analyzing macromolecules
11/12/2002US6479624 Polymer solution preheater and method for preheating such solutions
11/07/2002WO2002088248A1 Peroxide curable fluorelastomer compositions
11/07/2002WO2002088237A1 Method to decrease aldehyde content in polyolefin products
11/07/2002WO2002088194A1 Polymer treatment for separating volatile material
11/07/2002WO2002088053A1 Method for the processing of a liquid reaction discharge of the cationic polymerisation of isobutene
11/07/2002US20020165341 Emulsion or suspension polymerizing, one or more unsturated monomers, aftertreating the polymer dispersion thus obtained, spray drying to a solid content, redispersing the resulting powder in water, hydrolyzed polyvinyl alcohol stabilizer
11/07/2002CA2445353A1 Method to decrease aldehyde content in polyolefin products
11/06/2002CN1378562A Gas phase polymerization method
10/2002
10/31/2002WO2002085832A2 Solid mixtures of alpha-hydroxycarbonyl derivatives of alpha-methylstyrene oligomers and their use
10/31/2002US20020161129 Concentrating, extrusion, applying to backing
10/30/2002EP0779899B1 Polymer beads and method for preparation thereof
10/30/2002CN1377374A Preparation of low residual monomer content polymers
10/24/2002WO2002083745A1 Separation of isobutene non-reacted during polymerization of isobutene
10/24/2002US20020156233 Purification means
10/24/2002US20020156199 Preparation of homo-, co- and terpolymers of substituted styrenes
10/23/2002CN1376088A Diluent slip stream to give catalyst wetting agent
10/17/2002US20020151748 Fluorinated carboxylic acid recovery and reuse
10/17/2002US20020151606 Method for isolating polymer resin from solution slurries
10/17/2002DE10118182A1 Working up liquid products from polyisobutene production by cationic polymerisation involves flash evaporation to give a liquid containing polyisobutene and a gas phase containing isobutene and inert diluent
10/17/2002DE10118181A1 Removing unreacted isobutene in the production of polyisobutene by cationic polymerisation involves evaporating the liquid reaction product and separating the foam with a baffle or circulating loop
10/16/2002CN1374326A Method for controlling molecular weight distribution during polymerization reaction
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