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Matches 1 - 50 out of 9,081

Document Document Title
WO/2019/043033A1
Process for the preparation of very low haze and color stable styrenic polymers by anionic polymerization wherein the obtained terminated polymer solution is passed through a first filter, fed to a dispersing device to which water is add...  
WO/2019/043030A1
Process for the preparation of styrenic polymers having an improved color stability by anionic polymerization wherein the obtained terminated polymer solution is fed to a dispersing device to which water is added, fed to a buffer vessel ...  
WO/2019/046748A1
The present invention is directed to an improved purification process using additive and activated carbon for purifying resorbable polymers suitable for industrial manufacturing. The metal catalyst concentration in the purified resorbabl...  
WO/2019/031617A1
The purpose of the present invention is to obtain a polytetrafluoroethylene aqueous dispersion liquid from which fluorine-containing compounds have been removed or diminished. The present invention is a method for producing a purified po...  
WO/2019/027565A1
Methods for separating gaseous components, such as unreacted hydrocarbon monomer and/or solvent, from polyolefin solids are provided. The methods include contacting a first stream including polyolefin solids and gaseous unreacted hydroca...  
WO/2019/027566A1
Methods for separating gaseous components, such as unreacted hydrocarbon monomer and/or solvent, from polyolefin solids are provided. The methods include flowing a first stream including polyolefin solids and gaseous unreacted hydrocarbo...  
WO/2019/026899A1
Provided are a method for manufacturing a latex containing hollow resin particles having a higher porosity than in the past, and a method for manufacturing hollow resin particles having a higher porosity than in the past. A method for ma...  
WO/2019/022799A1
A method for the removal of unreacted olefin monomer(s) from polyolefin product particles of an olefin polymerization reaction, the method including: contacting the polyolefin product particles with a countercurrent flow of a purge gas i...  
WO/2019/022544A1
The present invention relates to a copolymer and a preparation method therefor, the polymer comprising: relative to a total weight of the copolymer, 20-65 wt% of an alkyl styrene-based monomer-derived unit, 10-40 wt% of a (meth)acrylate-...  
WO/2019/022356A1
The present invention relates to a vinyl chloride-based polymer with reduced generation of volatile organic compounds and a preparation method therefor. According to the present invention, the vinyl chloride-based polymer contains a vola...  
WO/2019/012581A1
Disclosed is a method for producing poly(vinyl alcohol) having a degree of saponification of 97.0 mol% or higher, the method comprising a pulverization step in which a particulate first poly(vinyl alcohol) is pulverized to obtain second ...  
WO/2019/004059A1
Provided is a fluorine-containing elastic copolymer having exceptional crosslinking properties and a low metallic element content. This fluorine-containing elastic copolymer has an iodine atom, and has: a unit a based on tetrafluoroethyl...  
WO/2019/002137A1
The present invention relates to a method of reducing the entrainment of polymer in the polymer-lean liquid phase in a separator, comprising the steps of: (i) Selecting the diameter of the polymer droplets in the polymer solution enterin...  
WO/2018/234222A1
The invention relates to a vinyl aromatic/diene-block copolymer A, obtained by an anionic polymerization of a monomer composition, comprising: A1: 60-95 wt.-% of at least one vinyl aromatic monomer, and A2:5-40 wt.-% of at least one dien...  
WO/2018/225685A1
Provided is a method for producing a block polymer, which comprises: a step for synthesizing a homopolymer by anionically polymerizing a first monomer in the presence of an initiator with use of a flow reactor that is provided with a mix...  
WO/2018/225586A1
Provided are a fluorine-containing elastic copolymer in which the contained amounts of metal elements and chloride ions are low, and a fluorine-containing elastic copolymer production method capable of obtaining a fluorine-containing ela...  
WO/2018/217294A1
Methods of improving Mooney stability of a brominated elastomer comprising: neutralizing a brominated elastomer effluent with a neutralizing agent and water to form a neutralized effluent comprising a hydrocarbon solvent; removing the so...  
WO/2018/204026A1
Disclosed herein are methods and systems for recovering volatile organic compounds (VOCs) from a purged polymer product. The methods and systems are particularly useful in the recovery of VOCs from a purged polyethylene polymer product p...  
WO/2018/197377A1
The invention relates to a process for producing graft copolymers based on acrylonitrile-butadiene-styrene copolymers (ABS), wherein the graft copolymers may be dewatered particularly readily after production and precipitation and have a...  
WO/2018/192222A1
Disclosed is a preparation method for a polysiloxane-acrylate/styrene copolymer with a large particle size and a core-shell structure. The preparation method comprises the following steps: adding a polyacrylate agglomerating agent to a p...  
WO/2018/194872A1
A method of processing a polymerization reactor effluent stream comprising utilizing a separation system that removes greater than 99% of the fine polymer particles in the polymerization reactor effluent, wherein the separation system is...  
WO/2018/181239A1
Provided is an extrusion dryer for a rubber-like polymer, comprising: a cylinder; and a die that has a plurality of openings at one end of the cylinder, wherein the openings each have an opening base portion and at least one opening exte...  
WO/2018/180978A1
Provided is a method for producing carboxyl-group-containing nitrile rubber, the method being provided with a coagulation step for: mixing a monovalent metal salt and a polymer flocculant with a latex of carboxyl-group-containing nitrile...  
WO/2018/180590A1
Provided is a method for producing a carboxylated nitrile rubber, the method comprising a step in which a monomer mixture comprising an α,β-ethylenically unsaturated nitrile monomer and a carboxylated monomer is polymerized in a solven...  
WO/2018/174175A1
A method for producing a water-absorbing resin including a cracking step for cracking a water-containing gel of a cross-linked polymer, wherein the temperature of the water-containing gel in the cracking step is 35°C or less. This metho...  
WO/2018/162399A1
The invention relates to a synergistically active composition which comprises a mixture of a sulfinic acid or a salt thereof and ascorbic acid or a salt thereof and the use of the composition as reducing agent. The reducing power of the ...  
WO/2018/146236A1
The present invention relates to a process for producing cycloalkenamer-containing compositions, comprising the steps of: a) converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containi...  
WO/2018/143191A1
The present invention provides an ethylene polymer, wherein the viscosity-average molecular weight as determined according to specific conditions for measuring the isothermal crystallization time is 100 × 104 to 1,000 × 104 (inclusive)...  
WO/2018/142965A1
The present invention provides a technology that efficiently isolates, recovers, and reuses a solvent and/or residual monomers from a polymer-containing liquid obtained by polymerizing raw-material monomers. This production method for a ...  
WO/2018/124550A1
The present invention relates to a method for preparing a super absorbent polymer. The method comprises: a step for producing a neutralized monomer solution by adding an internal cross-linking agent, an initiator, an inorganic filler, an...  
WO/2018/124596A1
The present invention relates to: a nitrile-based rubber preparation method for preparing a nitrile-based rubber by polymerizing a monomer mixture comprising an α,β-unsaturated nitrile-based monomer and a conjugated diene-based monomer...  
WO/2018/114071A1
A process for reducing the volatile organic compound content of granular plastomers having a density of equal to or lower than 883 kg/m3 and a MFR2 of 1 00.0 g/1 0 min or lower (ISO 1133 at 2.16 kg load and 190 °C), to below 65 ppm (VOC...  
WO/2018/112821A1
A process of stripping a dispersion of organic extender particles with volatile organic compounds and a method of reducing volatile organic compounds.  
WO/2018/116828A1
Provided is a method for producing an acrylic rubber, comprising a coagulation step of mixing a latex of an acrylic rubber with a metal salt and a polymer flocculant to coagulate the acrylic rubber component, wherein the metal salt and t...  
WO/2018/110825A3
The present invention relates to a preparation method of a thermoplastic resin and, more particularly, to a method for preparing a thermoplastic resin, the method comprising: A) coagulating emulsion-polymerized latex with acid; B) treati...  
WO/2018/110825A2
The present invention relates to a preparation method of a thermoplastic resin and, more particularly, to a method for preparing a thermoplastic resin, the method comprising: A) coagulating emulsion-polymerized latex with acid; B) treati...  
WO/2018/111087A1
A curable polymer latex composition obtainable by: • (a) subjecting a monomer mixture comprising • i. at least one conjugated diene; • ii. at least one ethylenically unsaturated nitrile; • iii. optionally at least one ethylenical...  
WO/2018/106953A1
A method including operating a high impact polystyrene (HIPS) reaction system having a devolatilizer downstream of a polymerization reactor, and from which a HIPS product is obtained, and injecting an antioxidant into the HIPS reaction s...  
WO/2018/105917A3
The present invention relates to a method for manufacturing a thermoplastic resin, a thermoplastic resin composition comprising the same, and a method for manufacturing an injection molded article. More specifically, the present inventio...  
WO/2018/104080A1
The invention relates to a process of manufacturing high density polyethylene, comprising • performing first polymerization to form a first slurry in a first reactor (R1); transferring (104) at least part of the first slurry from the f...  
WO/2018/105917A2
The present invention relates to a method for manufacturing a thermoplastic resin, a thermoplastic resin composition comprising the same, and a method for manufacturing an injection molded article. More specifically, the present inventio...  
WO/2018/101342A1
Provided is a method for efficiently producing a high-boiling-point solvent solution of a methacrylic copolymer having a narrow molecular weight distribution. Provided is a production method for a polymer solution that includes: a methac...  
WO/2018/100076A1
The present invention relates to a process for operating a polymer powder degasser vessel, and in particular provides a process for operating a polymer powder degasser vessel which vessel comprises a silo comprising a main vertical cylin...  
WO/2018/092803A1
A method for producing an α-olefin oligomer, which comprises a process wherein: an α-olefin oligomer mixture is produced by performing an oligomerization reaction of an α-olefin; subsequently, a distillation residue containing α-olef...  
WO/2018/093052A3
The present invention relates to an olefinic monomer recovery device capable of suppressing fouling and pressure drop in the recovery device in a process of separating and recovering unreacted monomers after production of a polyolefin re...  
WO/2018/093052A2
The present invention relates to an olefinic monomer recovery device capable of suppressing fouling and pressure drop in the recovery device in a process of separating and recovering unreacted monomers after production of a polyolefin re...  
WO/2018/084015A1
This extrusion dryer for a rubbery polymer comprises a cylinder which has a hopper for injection of a rubbery polymer at one end and a die at the other end, and a screw which is rotatably arranged inside of the cylinder and which has a s...  
WO/2018/084014A1
This extrusion dryer for a rubbery polymer comprises a cylinder, a liner provided on the inner peripheral surface of the cylinder, and the screw rotatably arranged inside of the liner, and conveys a rubbery polymer by means of the screw,...  
WO/2018/079785A1
Provided is a method for producing an acrylic rubber, the method being provided with: an emulsion polymerization step for obtaining an emulsified polymer solution by emulsion-polymerizing a monomer in the presence of a nonionic emulsifie...  
WO/2018/079784A1
Provided is an acrylic rubber containing a lubricant, the lubricant being at least one selected from among phosphate ester, fatty acid ester, fatty acid amide, and higher fatty acid. According to the present invention, an acrylic rubber ...  

Matches 1 - 50 out of 9,081