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WO/2021/221029A1 |
A purpose of the present invention is to provide a polybutadiene composition which makes it possible to obtain a rubber composition having excellent hardness and which is excellent in terms of processability and dimensional stability in ...
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WO/2021/215750A1 |
The present invention relates to a post-treatment device. The post-treatment device according to the present invention, which is for post-treating latex, comprises: an accommodation tank having an accommodation part formed therein, and h...
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WO/2021/199465A1 |
The present invention provides: polymer particles which can be dissolved in a dissolution medium without generating lumps, and can uniformly improve the viscosity of a composition; and a thickener using said polymer particles. The polyme...
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WO/2021/200856A1 |
The following is provided as a method for producing a polyvinyl-alcohol-based resin having high producibility and exceptional long running properties. A method for producing a polyvinyl-alcohol-based resin in which the absorbance at 280 ...
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WO/2021/198323A1 |
Process for deodorization of recycled polyolefin pellets (23) in three steps: In a first step the moist pellets (23) are contacted with a circulating inert gas having a temperature between 110°C and 160°C in a steam stripper (11) and t...
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WO/2021/191076A1 |
A process for preparing an ethylene polymer in a suspension polymerization comprising separating the formed suspension of ethylene polymer particles in a solid-liquid separator into ethylene polymer particles and mother liquor, transferr...
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WO/2021/177573A1 |
The present invention relates to a process for preparing an ethylene copolymer through a copolymerization reaction and extrusion and granulation steps using raw materials comprising ethylene and α-olefin, and relates to a process for pr...
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WO/2021/172831A1 |
According to an embodiment of the present invention, provided is a process for polymerizing molecular-weight controlled polymer, comprising: a reactant supply step of supplying a gaseous monomer, a surfactant, and an initiator; a polymer...
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WO/2021/172402A1 |
Provided is a method for producing hollow resin particles, in which the residual quantity of a hydrocarbon-based solvent temporarily retained inside the particles in a production process is reduced, and damage is suppressed. A method for...
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WO/2021/162085A1 |
The problem of the present invention is to provide a water-absorbing resin for which odor generated when the water-absorbing resin swells is sufficiently reduced while physical properties such as water-absorption performance of the water...
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WO/2021/154472A1 |
A polymerization process may include: polymerizing a monomer having 4 or less carbons and a comonomer having 6 or more carbons in the presence of an inert isomer/saturate of the comonomer to yield a product stream comprising a polymer, u...
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WO/2021/148508A1 |
The invention relates inter alia to the field of the production of staple foodstuffs and luxury food items, for example coffee products and coffee substitute products. According to the invention, enzymes are made available which are capa...
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WO/2021/136629A1 |
The present invention relates to a polymerization process, comprising: a) supplying a feed containing ethylene and at least one alpha-olefin having 3 to 12 carbon atoms in a hydrocarbon solvent to a polymerization reactor, b) contacting ...
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WO/2021/132822A1 |
The present invention relates to a method for preparing a rubber composition which can improve physical properties of a final product. In order to achieve the purpose of the present invention, the present invention comprises a step of pr...
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WO/2021/127935A1 |
Disclosed in the present invention are ABS rubber powder with a low impurity content, a preparation method therefor, and an ABS resin. The ABS rubber powder is treated by using the following steps: washing the ABS rubber powder with a wa...
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WO/2021/122694A1 |
An emulsion polymerization process for preparation of ABS graft copolymer latex having reduced residual monomer content, wherein a grafting step c) comprises the steps: c1): feeding of 10 to 45 wt.-% of styrene and acrylonitrile in one p...
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WO/2021/126523A1 |
The present disclosure provides methods for the production of polymer blends using multiple reactors arranged in parallel. The methods comprise: providing a first feed comprising propylene to a first reactor operated in parallel with a s...
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WO/2021/124950A1 |
The present invention relates to a method for producing an ionomer resin, said method comprising: (i) a step wherein a poor solvent is added into a solution of a crude ionomer resin that contains a (meth)acrylic acid unit (A), a neutrali...
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WO/2021/117903A1 |
Provided are a methacrylic copolymer which comprises 70-93 mass% methyl methacrylate unit, 7-30 mass% α-methylstyrene unit and 0-23 mass% of another monomer unit that is copolymerizable therewith, and which satisfies the relationship in...
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WO/2021/112617A1 |
The present invention relates to: a catalyst composition comprising an oxonium ion-based catalyst and an additive; and a method for preparing polyisobutene by using same.
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WO/2021/111342A1 |
PFSA ionomer particles having a BET surface area of at least 0.1 g/m2 are described. The PFSA ionomer comprises (i) divalent units derived from tetrafluoroethene (TFE) and represented by formula –[CF2-CF2]- and (ii) divalent units repr...
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WO/2021/105911A1 |
A hydrogel liquid precursor contains water and one of a compound and a salt of the compound represented by R1CH = CR2X, where X represents a carboxyl group, carboxylate group, sulfo group, or sulfonate group, R1 and R2 each independently...
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WO/2021/091768A1 |
In a process for producing an olefin polymer, an olefin monomer is polymerized to produce a particulate polymer product containing unreacted monomer. The polymer product is contacted with an inert gas to strip hydrocarbon impurities ther...
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WO/2021/085883A1 |
The present invention relates to a method for preparing a diene-based graft copolymer resin, and a diene-based graft copolymer resin prepared thereby, the method comprising the steps of: injecting, into a reactor, a polymerization soluti...
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WO/2021/079882A1 |
A medical curable composition comprising a polymerizable monomer, a polymer having a weight-average molecular weight of 300,000 or less, and a polymerization initiator. The polymer includes irregular-shape particles having an average pri...
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WO/2021/075779A1 |
The present invention relates to a method for preparing a diene-based graft copolymer resin, and a diene-based graft copolymer resin prepared thereby, the method comprising the steps of: preparing a first reactant by mixing an aromatic v...
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WO/2021/071093A1 |
The present invention relates to an acrylic copolymer composition and, more specifically, provides an acrylic copolymer composition comprising: an acrylic copolymer; a coagulation inducer; and a coagulant, wherein: the acrylic copolymer ...
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WO/2021/071165A1 |
An aqueous dispersion composition according to embodiments of the present invention comprises: an ethylene-carboxylic acid copolymer; an anti-blocking agent containing a polymer wax which is contained in an amount of 5 weight% or more on...
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WO/2021/071273A1 |
The present invention relates to: a method for manufacturing nitrile-based rubber which has a low content of residual emulsifier and exhibits excellent mechanical properties; nitrile-based rubber manufactured thereby; and a rubber compos...
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WO/2021/062577A1 |
A process of stripping aqueous dispersion of polymeric beads with volatile organic compounds and an aqueous polymer composition obtained by the process.
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WO/2021/064113A1 |
The present invention provides a method for the treatment of polyolefin compositions, comprising the steps of melting said polyolefin composition and applying ultrasound to said molten polyolefin composition whereby fulfilling inequality...
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WO/2021/066313A1 |
The present invention relates to a super absorbent polymer composition and a method for preparing same. More specifically, the present invention provides a super absorbent polymer composition exhibiting excellent water absorption perform...
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WO/2021/066340A1 |
According to a method for producing a super absorbent polymer according to the present invention, fine particles present in the produced super absorbent polymer are removed, and thus the problem of fine particle dispersion and the proble...
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WO/2021/060909A1 |
The present invention relates to a method for preparing a vinyl chloride-based polymer, comprising the steps of: (1) polymerizing vinyl chloride-based monomers in the presence of a vinyl chloride-based first seed particle, a vinyl chlori...
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WO/2021/060833A1 |
The present invention relates to a method for producing a conjugated diene-based polymer, characterized by using a saponified dimer acid as an emulsifier in a polymerization initiation step and, following the initiation of polymerization...
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WO/2021/060743A1 |
The present invention relates to a method for preparing a graft polymer, comprising the steps of: polymerizing a monomer mixture which comprises a carboxylic acid monomer and methyl acrylate and in which the amount of the carboxylic acid...
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WO/2021/047035A1 |
The present invention relates to an enhancing system and a process for preparing polyethylene on basis of a solution method, comprising: an ethylene storage tank, a reactor, a micro-interface generator, a killer, a desolvation tank, a re...
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WO/2021/049524A1 |
The purpose of the present invention is to provide a method for producing an acrylic rubber having excellent storage stability. This method for producing an acrylic rubber comprises: an emulsion polymerization step for obtaining an emu...
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WO/2021/045227A1 |
Provided is a composition comprising polytetrafluoroethylene, a polymer (I) comprising a polymerization unit (I) based on monomer represented by general formula (I), a nonionic surfactant, and an aqueous medium, wherein the content of th...
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WO/2021/045228A1 |
Provided is a PTFE aqueous dispersion having a low viscosity at high temperature. The PTFE aqueous dispersion is characterized by including a PTFE and a nonionic surfactant, wherein the PTFE aqueous dispersion has a PTFE solid content co...
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WO/2021/037565A1 |
A process for reducing the volatile and semi-volatile organic content (VOC and FOG values) of a heterophasic polypropylene composition, the heterophasic polypropylene composition comprising (i) at least 15 wt.-% of at least a first heter...
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WO/2021/037969A1 |
The present invention relates to a process for treating a polymeric dispersion prepared by polymerizing at least one or more unsaturated monomers comprising adding to said polymeric dispersion a sufficient amount of one or more organic p...
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WO/2021/039798A1 |
The present invention addresses the problem of providing: fine resin particles which have solvent resistance that makes the particles dispersed in solvents withstand a heating step and which are less apt to generate bubbles upon dispersi...
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WO/2021/041225A1 |
In some aspects, the present disclosure pertains to multi-arm polymers that comprise a core, a plurality of polymer segments having a first end that is covalently attached to the core and a second end comprising a moiety that comprises a...
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WO/2021/033953A1 |
The present invention relates to a method of preparing a graft copolymer and a thermoplastic resin composition comprising the graft copolymer. More specifically, the present invention relates to a method of preparing a graft copolymer an...
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WO/2021/020733A1 |
The present invention provides a method for post-processing a vinyl chloride-based polymer, comprising the steps of: (a) forming a vinyl-chloride-based polymer powder by drying vinyl chloride-based polymer latex in a dryer (11); (b) filt...
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WO/2021/020630A1 |
A method for preparing a zinc ion-imprinted polymer, according to one embodiment of the present invention, comprises a mixing step, a polymerization step and a template ion removal step, and provides a zinc ion-imprinted polymer having h...
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WO/2021/015485A1 |
The present invention relates to an acrylic copolymer coagulant and a method for preparing a graft copolymer using same, the acrylic copolymer coagulant being a copolymerized product of a monomer mixture containing a carboxylic acid-base...
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WO/2021/014790A1 |
Provided are: an acrylic rubber bale and a method for manufacturing the same, the acrylic rubber bale having markedly improved storage stability and water resistance without compromising strength characteristics and other crosslinking ph...
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WO/2021/014791A1 |
Provided are an acrylic rubber sheet having excellent preservation stability and processability, a method for producing same, an acrylic rubber bale obtained by laminating said sheet, a mixture obtained by mixing same, a method for produ...
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