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WO/2013/086585A1 |
The invention provides for a process for removing thiocarbonylthio groups from polymer prepared by RAFT polymerisation, the process comprising: introducing into a flow reactor a solution comprising the RAFT polymer in solvent; and promot...
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WO/2013/083402A1 |
The invention relates to a method for reducing the content of formaldehyde in aqueous polymer dispersions with components which latently release formaldehyde. The invention is characterized in that one or more N-oxyl compounds are added ...
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WO/2013/084671A1 |
Provided is a method for manufacturing a modified polymer or hydrogen adduct thereof, the method allowing components that inhibit polymerization to be removed and the remaining part to be reused as a polymerization solvent. The method in...
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WO/2013/080969A1 |
A steam stripping device that is capable of operating for long periods of time and can prevent crumb from getting stuck to the inside walls of a crumbing tank, piping from getting blocked by reaggregated large-diameter crumb, a screen fr...
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WO/2013/076264A1 |
The invention relates to a method for producing aqueous polymer dispersions, in which a) one or more ethylenically unsaturated monomers are polymerised in an aqueous medium according to emulsion polymerisation processes, an aqueous dispe...
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WO/2013/076700A1 |
A process for the removal of the solvent from a polymeric solution including at least one elastomeric polymer, which comprises subjecting said polymeric solution to a stripping step by means of water vapour, in the presence of a dispersa...
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WO/2013/072035A1 |
The present invention relates to a process for treating polyolefin granules in a treatment vessel comprising the steps of: - Providing a bed of granules in liquid in said treatment vessel - Withdrawing a first stream of liquid from said ...
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WO/2013/065634A1 |
The present invention relates to a manufacturing method for efficiently obtaining an acrylic acid-based polymer having a narrow molecular mass distribution and a low molecular mass, without using a large amount of chain transfer agent. A...
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WO/2013/059976A1 |
A new and efficient toxicity and/or odor reducing method for ethyl acrylate and/or acrylonitrile containing aqueous polymer dispersion is disclosed, which comprises contacting a sufficient amount of an ethyl acrylate/acrylonitrile scaven...
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WO/2013/056979A1 |
The present invention relates to a process for operating a vertical fixed bed polymer powder degasser.
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WO/2013/050568A1 |
In a method for the thermal separation of a volatile substance from a non- or less volatile substrate having a phase boundary towards a gas chamber that receives the volatile substance subsequent to vaporisation and/or sublimation, mecha...
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WO/2013/050087A1 |
The present invention relates to a process for the production of a stabilized polyolefin comprising - an olefin homo- or copolymer (A); and - an antioxidant (B) wherein olefin homo- or copolymer (A) is produced in a process carried out i...
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WO/2013/032142A9 |
The present invention relates to a method for preparing a vinyl chloride-based seed by adding a vinyl chloride monomer, an emulsifier, and a polymerization initiator into an aqueous medium, and then homogenizing a liquid drop using a rot...
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WO/2013/037097A1 |
A method for preparing powder resin is provided. The method comprises the following steps: (1) directly cooling a polymer precipitate obtained from a reaction system after performing polymerization reaction at a rate of 2-50℃/minute fo...
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WO/2013/033328A1 |
A composition comprising a polyethylene wherein the composition is enriched in polymer molecules having topological variations by an enrichment factor and wherein the composition displays a long chain branching frequency of greater than ...
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WO/2013/024790A1 |
A method for concentrating and recovering an aqueous solution of a surfactant is provided whereby an aqueous solution of a surfactant having a high concentration of the surfactant can be efficiently and easily obtained by evaporating and...
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WO/2013/017799A1 |
The invention relates to soft acrylic copolymers in the form of granules, that are surface-treated with a powder of statistical acrylic copolymers. This treatment facilitates the free flow and handling of the granules. The invention also...
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WO/2013/008401A1 |
This method for producing an olefin polymer produces an olefin polymer by polymerizing at least one type of α-olefin having 6-20 carbon atoms in the presence of a metallocene catalyst, and after the catalyst is deactivated and deashed a...
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WO/2013/009553A2 |
Fine particulate polymer drag reducing agents (DRAs) in bi-modal or multi-modal particle size distributions may be produced simply and efficiently without cryogenic temperatures. The grinding or pulverizing of polymer, e.g. non-porous po...
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WO/2013/008398A1 |
This method for producing an olefin polymer produces an olefin polymer by polymerizing at least one type of α-olefin having 6-20 carbon atoms in the presence of a metallocene catalyst, and by means of diluting the polymerization reactio...
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WO/2013/006824A2 |
The disclosure relates to methods of making polymer particles, said methods including the steps of: making an aqueous gel reaction mixture; forming an emulsion having dispersed aqueous phase micelles of gel reaction mixture in a continuo...
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WO/2012/173153A1 |
Provided is a method for efficiently recovering the unreacted monomer and polymerization vehicle from a mixture that contains a fluorine-containing copolymer, an unreacted monomer, and a polymerization vehicle. The method for producing a...
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WO/2012/168138A1 |
The invention relates to a method for processing wastewater and exhaust gas condensates from the polymerization of vinyl acetate and ethylene and optionally other comonomers in an aqueous medium by the suspension or emulsion polymerizati...
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WO/2012/164081A1 |
A method for the continuous production of water-absorbent polymer particles, wherein the acrylic acid used for producing the polymer particles has a low purity.
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WO/2012/165021A1 |
The present invention provides: vinyl chloride resin aggregate particles which enable the production of a plastizol having excellent impermeability and good sagging properties; a method for producing the vinyl chloride resin aggregate pa...
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WO/2012/159180A1 |
The present invention relates to green coalescent agent compositions composed of monoesters obtained by direct or indirect esterification of fatty acids of vegetable oils and alcohols from fusel oil. The fatty acids used in the present i...
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WO/2012/157714A1 |
Provided is a fluorine-containing copolymer which is capable of providing an ion exchange membrane that is not adversely affected very much by impurities in an aqueous alkali chloride solution in electrolysis of the aqueous alkali chlori...
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WO/2012/157715A1 |
Provided is a method for producing a fluorine-containing copolymer which is capable of providing an ion exchange membrane that is suppressed in decrease of the current efficiency due to impurities in a starting material aqueous alkali ch...
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WO/2012/152647A1 |
The invention relates to a method for producing water-absorbing polymer particles, comprising the steps of polymerizing a monomer solution or suspension, drying the obtained polymer gel, and grinding and classifying the dried polymer gel...
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WO/2012/152775A1 |
A process for homogenizing and pelletizing a polyethylene composition comprising the steps of a) providing a polyethylene composition having a density of from 0.90 g/cm3 to 0.97 g/cm3 and a melt flow rate MFR21.6 at 190°C under a load o...
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WO/2012/137663A1 |
Provided are: a polychloroprene latex which is capable of providing stability at low temperatures without lowering rubber aggregability during when a dip-molded article is molded; a rubber composition; and a dip-molded article which is o...
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WO/2012/132861A1 |
This process for producing a water-absorbing resin includes: a polymerization step of subjecting a polymerizable component which contains a water-soluble ethylenic unsaturated monomer dissolved in water to polymerization using a water-so...
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WO/2012/124212A1 |
The present invention is an emulsion binder which contains an A-B block copolymer. The A-B block copolymer has a number average molecular weight of 5,000-100,000 and a molecular weight distribution (weight average molecular weight/number...
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WO/2012/119969A1 |
The invention relates to a method for producing water-absorbing polymer particles having improved permeability, comprising the steps of polymerizing, drying, grinding, classifying, and thermal surface post-cross-linking, wherein pneumati...
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WO/2012/106410A2 |
The invention provides a composition and a method of using the composition for inhibiting the unwanted polymerization of ethylenically unsaturated monomers. The composition is prepared by reducing a nitroxide stable free radical to its c...
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WO/2012/098748A1 |
Provided are a polyvinyl alcohol resin superior in handling and less prone to generate dissolution residue when dissolved in water, and a method for producing the same. A polyvinyl alcohol resin slurry obtained through a polymerization s...
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WO/2012/096160A1 |
A process for producing an α-olefin oligomer which comprises polymerizing one or more C6-20 α-olefins in the presence of a catalyst to produce the α-olefin oligomer and deactivating the catalyst with a deactivator from which oxygen ha...
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WO/2012/093872A2 |
Disclosed are a method for preparing wax using unreacted materials in polymerization and a method for preparing a plastic rubber material using the wax. According to the present invention, the method for preparing wax using unreacted mat...
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WO/2012/089747A1 |
Latex emulsions are disclosed which can be used in the formation of coating compositions that are not water sensitive, have good blush resistance and retortability. In some embodiments, the coating compositions are used to coat substrate...
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WO/2012/082674A1 |
Provided are systems and methods for separating a purge gas recovered from a polyethylene product. The method includes recovering a polyethylene product containing one or more volatile hydrocarbons from a polymerization reactor and conta...
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WO/2012/062998A1 |
The invention relates to the use of active carbon to implement a method for purifying an initial viscous mixture containing at least one substance responsible for the viscosity of said mixture and at least one contaminant, said active ca...
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WO/2012/060828A1 |
A posttreatment and a system for posttreating pelletized polyolefin resins. The posttreatment comprises a heating step.
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WO/2012/056939A1 |
(Problem) To produce a hydrogenated block copolymer crumb which can exhibit excellent compounding properties including homogeneous dispersion of an oil throughout the crumb upon the compounding with the oil, the decrease of unmolten crum...
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WO/2012/055681A1 |
The invention relates to a method for producing a water-absorbing polymer, comprising the following steps: (i) mixing (a1) 0.1 to 99.99 wt.%, preferably 20 to 98.99 wt.%, and particularly preferably 30 to 98.95 wt.% of polymerized, ethyl...
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WO/2012/051268A1 |
A polyethylene production process, comprising contacting ethylene and a polymerization catalyst under suitable reaction conditions to yield a polymerization product stream, separating a light gas stream from the polymerization product st...
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WO/2012/043870A1 |
An object of the present invention is to provide a method for recovering fluorosurfactants which enables a fluorosurfactant used for the manufacture of a fluoropolymer to be collectively recovered. The method for recovering a fluorosurfa...
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WO/2012/039466A1 |
Provided is a solid polymer separator (1) which comprises a cylindrical screen (11) provided with a number of slits, a driving unit for circumferentially rotating the screen (11), a helical guide plate provided in the inner circumferenti...
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WO/2012/019070A1 |
Heat aging of the composition comprising melt-fabricable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, the alkyl containing 1 to 5 carbon atoms and melt flowable polytetrafluoroethylene is effective to cause thermal transfo...
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WO/2012/007356A1 |
The invention provides a process for aqueous, free-radically initiated, continuous emulsion polymerization of A) at least one vinyl ester and optionally at least one (meth)acrylic ester, B) ethylene, and C) 0 to 10% by weight, based on t...
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WO/2012/008294A1 |
Provided is a dispersant for calcium carbonate with which the initial viscosity of a calcium carbonate slurry obtained by wet grinding is low and furthermore a marked rise in viscosity over time is prevented, and also provided is a metho...
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