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Matches 651 - 700 out of 9,151

Document Document Title
WO/2007/115848A1
The present invention relates to a precipitation process for removing transition metals from polymer solutions. Specifically, it comprises the removal of transition metal complexes which usually comprise copper from polymer solutions aft...  
WO/2007/116614A1
This invention provides a process for producing a resin for semiconductor lithography that can suppress the occurrence of defects, particularly bridge mode defects. The process for producing a resin for semiconductor lithography comprise...  
WO/2007/116037A1
The invention pertain to a process for purifying a fluoropolymer dispersion, said process comprising: (i) providing an aqueous dispersion (D) of at least one fluoropolymer [polymer (F)] comprising at least one fluorinated surfactant [sur...  
WO/2007/117098A1
Disclosed is a method of removing a residual catalyst metal compound from a polymer solution. The method comprises the steps of: a) mixing a solution in which at least one organic nitrogen compound is dissolved in a polar solvent and the...  
WO/2007/113297A1
The invention relates to a method for coagulating an aqueous polymer dispersion, which is characterised in that during or after coagulation, the dissolved coagulation salt is transformed into an insoluable form.  
WO/2007/114468A1
A dryer having a circular tubular first straight barrel section opened at its both upper and lower ends, a substantially circular conical first cone section contiguously provided at the upper end of the first straight barrel section and ...  
WO/2007/101856A1
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 o...  
WO/2007/075615A3
A polyolefin production system, comprising a polymerization reactor (such as a polyethylene loop slurry reactor) and a fractionation system that receives reactor effluent processed in a diluent/monomer recovery system for recycle to the ...  
WO/2007/088135A1
The invention relates to a method for the purification of a resorbable polymer from residual monomers comprising the addition of a solution of said polymer in a solvent and the addition of a precipitation agent into a mixing chamber to p...  
WO/2007/064427A3
A devolatilizer nozzle comprising at least one perforated flow tube having a non-circular cross-section. In an embodiment, the non-circular cross-section has equal to or greater than 3 sides. The non-circular cross-section of said nozzle...  
WO/2007/078445A1
A method of making a stable photoresist solution containing a polymer from a solution of a polymer containing trace metals, said method comprising the steps of: (a) providing a polymer solution containing a polymer, a first solvent and t...  
WO/2007/078414A1
Disclosed herein is a process to produce a film comprising polyvinyl alcohol), wherein the poly (vinyl alcohol) solution has been purified utilizing an ion exchange resin. An approximate 50 micrometer thick film produced from the purifie...  
WO/2007/075615A2
A polyolefin production system, comprising a polymerization reactor (such as a polyethylene loop slurry reactor) and a fractionation system that receives reactor effluent processed in a diluent/monomer recovery system for recycle to the ...  
WO/2007/074075A1
The invention provides a process for preparing copolymers comprising vinyl ester and ethylene or ethylenically unsaturated monomers by aqueous free-radical polymerization at a pressure of 5 to 100 bar absolute by the emulsion or suspensi...  
WO/2007/071356A2
A process for purifying a polymer containing residual volatile monomers by drying the polymer powder under vacuum at a pressure and at a temperature which allows the vaporization of the residual monomers and optionally de-aggregating by ...  
WO/2007/071527A1
A gas-phase process for polymerizing one or more α-olefins in a fluidized bed reactor in the presence of a polymerization catalyst, said fluidized bed reactor being equipped with a fluidization grid arranged at its base, and external me...  
WO/2007/070492A1
Method for preparing polymer products, comprising polymerizing conjugated diene monomer, optionally together with vinyl aromatic monomer, within hydrocarbon solvent by employing lithium-containing initiator, thereby forming living polyme...  
WO/2006/062258A3
This invention is to provide a method for producing a modified water absorbent resin excelling in water absorbing properties. This invention relates to a method for producing a modified water absorbent resin, which comprises a) mixing a ...  
WO/2005/012817A3
Disclosed is a process for devolatilizing a polymer comprising the polymer through a devolatizer comprising a plate heat exchanger wherein the plate heat exchanger are heated by a plurality of heating tubes and wherein the heating tube c...  
WO/2007/061596A1
A process for polymerizing one or more monomers is provided. In at least one specific embodiment, the process includes preparing a mixture comprising the one or more monomers, a catalyst system and a flourinated hydrocarbon, preferably a...  
WO/2007/059013A1
Methods of producing decolorized homo- and co-polymers through polymerization of monomers in presence of cobalt-complexed tetraphenyl porphyrin derivatives and decolorization of the produced polymer by exposing the polymer to a sorbent a...  
WO/2006/138030A3
A process comprising contacting a liquid polyester stream with hydrogen in the presence of a hydrogenation catalyst comprising a metal supported on the surface of silicon carbide at a metal dispersion of at least 0.5% or graphite at a me...  
WO/2007/059014A1
Cobaloxime derivatives and methods of producing cobaloxime derivatives are disclosed herein. Methods of producing decolorized homo- and co-polymers through polymerization of monomers in presence of the cobaloxime derivatives and decolori...  
WO/2007/057350A1
Process for preparing water-absorbing polymer particles, comprising the steps of i) drying a hydrogel, ii) separating of incompletely dry polymer particles from the dried hydrogel, and iii) drying the incompletely dried polymer particles...  
WO/2007/054504A1
The invention relates to a tube bundle heat exchanger (R) for removing dissolved substances from a polymer solution (P) by degassing, having a bundle of tubes (R) which are arranged parallel to one another and vertically and are fastened...  
WO/2007/053258A1
A process of producing a polyolefin, in one embodiment a polyethylene, and in a preferred embodiment a bimodal polyethylene including a high molecular weight component and a low molecular weight component, the process including providing...  
WO/2007/049517A1
Disclosed is a fluororesin substantially containing no perfluorooctanoic acid or salt thereof, wherein the residual amount of a fluorine-containing emulsifier is low. Specifically disclosed is a fluororesin obtained by emulsion-polymeriz...  
WO/2007/043485A1
It is intended to provide an organic porous material which is excellent in mechanical properties such as strength and in which the structures of skeleton and pore are controlled more precisely. By a production process comprising (i) subj...  
WO/2007/038561A1
The present invention provides a method of making a fluoropolymer comprising: (i) providing an aqueous dispersion of fluoropolymer particles by polymerizing one or more fluorinated olefins and optionally one or more fluorinated or non-fl...  
WO/2007/034789A1
An aromatic vinyl compound/(meth)acrylic acid copolymer resin composition which has excellent heat resistance, is inhibited from gelling through intermolecular condensation, and contains no gel-form substances. The composition containing...  
WO/2007/034653A1
[PROBLEMS] To provide: a norbornene compound addition polymer which has excellent heat resistance and suffers no decrease in the excellent transparency and mechanical properties even when exposed to high temperatures during molding, proc...  
WO/2007/035218A1
A method for producing a particulate polymer drag reducing agent, comprising granulating a bulk polymer DRA having an average size of greater than about 100 mm in the presence of a liquid wetting agent to form a granulated polymer DRA ha...  
WO/2007/020716A1
A process for producing a purified polytetrafluoroethylene aqueous-dispersion, comprising passing a crude PTFE aqueous-dispersion containing 10 to 50 mass% of polytetrafluoroethylene (PTFE) microparticles of 0.1 to 0.5 μm average diamet...  
WO/2005/098546A3
The present invention relates to processes utilizing ionic liquids for the dissolution of various polymers and/or copolymers, the formation of resins and blends, and the reconstitution of polymer and/or copolymer solutions, and the disso...  
WO/2007/013305A1
The invention aims at providing a novel granulation process by which objective coagulated latex particles can be recovered in an extremely high yield without lowering the qualities inherent in the polymer constituting the latex while inh...  
WO/2006/028749A3
Spheroidal polyester polymer particles, as well as preforms and stretch blow molded bottles made from the spheroidal particles, are provided which have: A) an lt.V. of at least 0.72 dL/g, and either B) at least two melting peaks (on a DS...  
WO/2007/011017A1
[PROBLEMS] To easily and efficiently obtain a high-quality (meth)acrylic ester polymer which is reduced in the content of residual metallic ingredients (aluminum ingredient, alkali metal ingredient, and other metallic ingredients), has a...  
WO/2007/004972A1
The invention relates to a process for the production of a nitrogen containing epihalohydrin polymer involving reaction of a nitrogen-containing precursor selected from the group consisting of amines, poly-amines, polyaminoamides, polyur...  
WO/2007/002206A2
Polymerization processes are described herein. The polymerization processes generally include introducing a catalyst system to a reaction zone, introducing an olefin monomer to the reaction zone, contacting the olefin monomer with the ca...  
WO/2006/136555A1
The invention relates to a method for producing an aqueous polymer dispersion using microporous membranes.  
WO/2006/136554A1
The invention relates to a method for reducing the formamide content of preparations (Z) produced from N-vinylformamide monomers by polymerisation.  
WO/2006/136574A1
Disclosed is a method for producing polymers by means of emulsion polymerization. According to said method, monomers and polymerization regulators are added at least intermittently during the polymerization stage (feeding process). The i...  
WO/2006/136575A1
Disclosed is a method for producing polymers by means of emulsion polymerization. According to said method, monomers are added at least intermittently during the polymerization stage (feeding process). The inventive method is characteriz...  
WO/2006/135825A1
The present invention relates to a method for making a fluoropolymer comprising an aqueous emulsion polymerization of one or more fluorinated monomers wherein said aqueous emulsion polymerization is carried out in the presence of an olig...  
WO/2006/133850A1
The invention relates to a method for producing powdery high-molecular weight water-soluble polymers for use in solid/liquid separating processes. The invention particularly relates to a method for modifying and drying inverse polymer di...  
WO/2006/126674A1
[PROBLEMS] To provide a process for the production of water -soluble polymers which are excellent in water solubility even when used in the form of powder and which serve as polymer flocculant and exert excellent flocculation performance...  
WO/2006/127218A1
Crosslinkable perfluoroelastomer compositions having low metal content and low compression set when crosslinked, and processes for producing the same, are provided. Compositions comprising terpolymers of TFE, PAVE, and CNVE having a meta...  
WO/2006/128052A1
Methods for continuous bulk production of polyolefm polyhedral oligomeric silsesquioxanes and their amino, isocyanate, and alcohol derivatives using silane coupling agents as precursors.  
WO/2006/118247A1
Disclosed is a method for producing a fluorine-containing polymer wherein an aqueous dispersion of a fluorine-containing polymer can be separated into the fluorine-containing polymer and the moisture content easily and efficiently. Also ...  
WO/2006/115744A1
A method for recovering a solvent from its mixture containing oligomers extracted from grafted polyolefins is disclosed. The method comprises distilling the solvent from the mixture in the presence of a naphthalene compound. The method o...  

Matches 651 - 700 out of 9,151