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Patent Searching and Data


Matches 701 - 750 out of 9,345

Document Document Title
WO/2007/139712A3
A method of crystallizing a plurality of polymeric pellets includes a step of introducing the pellets into a pneumatic conveying system with an initial average temperature. The plurality of polymeric pellets are pneumatically transferred...  
WO/2008/011477A2
Brominated styrenic polymer is recovered from solution in a vaporizable solvent by converting the solution in a devolatilization extruder into a brominated styrenic polymer melt or flow and a separate vapor phase comprised predominately ...  
WO/2008/010862A1
The invention is directed to a process for producing polyolefins by one or more homogeneous or colloidal polymerization catalyst wherein residual catalyst is removed by using a solid sorbent.  
WO/2008/010973A1
Crosslinked polydicyclopentadiene polymer and copolymer are made by first forming a thermoplastic polymeric intermediate in a ring-opening metathesis polymerization (ROMP), and then crosslinking the intermediate in a melt-processing or s...  
WO/2008/003912A2
The present invention relates to a process for producing a moulding powder, characterized in that it consists in encapsulating particles of at least one filler via the free-radical polymerization of at least one monomer in the presence o...  
WO/2008/004660A1
Disclosed is a method for producing a good aqueous fluorine-containing polymer dispersion having a low fluorine-containing surfactant content, wherein the fluorine-containing surfactant is efficiently removed by adjusting the pH. Specifi...  
WO/2008/000649A1
Method for producing aqueous polymer dispersion using rinsing water.  
WO/2008/002352A1
Provided for herein is a process to produce an essentially homogeneous single liquid phase, hydrocarbon-rubber cement from a polymer slurry comprising a hydrocarbon-rubber, a diluent, and unreacted monomer(s), the process comprising: (a)...  
WO/2008/002346A1
Provided for herein is a process for separating a hydrocarbon-rubber from a hydrofluorocarbon diluent comprising contacting a polymer slurry comprising the hydrocarbon-rubber dispersed within the hydrofluorocarbon diluent with a hydrocar...  
WO/2007/059079A3
The present invention is a multilayer composite structure comprising at least three layers, two of which are adhered to an intervening adhesive layer comprising a copolymer obtained by copolymerizing from about 55 to about 95 weight % et...  
WO/2007/149275A2
A process for deactivating an active catalyst species in an olefin polymer stream exiting a polymerization reactor and neutralizing catalyst residues comprising adding to the olefin polymer stream in a quantity at least sufficient to ina...  
WO/2007/149274A2
A process for deactivating an active catalyst species in an olefin polymer stream exiting a polymerization reactor and neutralizing catalyst residues, as well as reducing corrosion, plugging or fouling of olefin production and recovery e...  
WO/2007/144343A1
A process is proposed for separating a liquid feed mixture (1) by dynamic cross-flow filtration in a membrane separation unit (MTE), comprising a housing (G) which is separated by a membrane (M) into a retentate space (R) and a permeate ...  
WO/2007/142882A2
A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion. The process includes providing a fixed bed of anion exchange resin having anion exchange groups with counter io...  
WO/2007/137713A1
An uncompounded polyolefin powder is disclosed, having a particle size distribution such that D95 is less than 355μm and (D90-D10)/D50 is less than 1.2, where D95, D90, D50 and D10 are defined such that 95vol%, 90vol%, 50vol% or 10vol% ...  
WO/2007/135946A1
Disclosed is a method for producing a polybutadiene wherein 1,3-butadiene is subjected to a cis-1,4 polymerization by using a catalyst and then the resulting is subjected to a syndiotactic-1,2 polymerization in the same polymerization sy...  
WO/2007/124543A1
A polymeric system which includes a polymeric material and a pro-fluorescent nitroxide compound or a fluorescent spin adduct thereof, the compound having at least one 5 to 10 membered heterocyclic ring comprising a nitroxide moiety or a ...  
WO/2007/071356A3
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/2007/123123A1
Disclosed is a method for producing a fluorine rubber wherein coloration is prevented. Specifically disclosed is a method for producing a fluorine rubber, which is characterized by comprising a step for heating and drying a coagulated pr...  
WO/2007/116554A1
A process for the production of water-absorbing resin particle agglomerates by which water-absorbing resin particles having satisfactory high water-holding capacity and large diameters can be produced without using special material, whic...  
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...  

Matches 701 - 750 out of 9,345