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WO/2021/053531A1 |
The present invention relates to low molecular weight polytetrafluoroethylene (PTFE) micropowder, The present invention relates to production of low molecular weight PTFE micropowder by direct polymerization technology and overcomes limi...
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WO/2021/052957A1 |
The present invention relates to a vehicle tyre comprising a piezoelectric device, wherein the piezoelectric device comprises a layer of a piezoelectric polymer having first and second opposing sides, and a first and a second layer of co...
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WO/2021/049836A1 |
The present invention relates to a method for preparing a vinyl chloride-based polymer, and the method for preparing a vinyl chloride-based polymer, according to the present invention, sequentially injects a first emulsifier and a second...
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WO/2021/049455A1 |
This method for producing a fluorine-containing compound is to produce a compound (30) having a substructure (3) by an insertion reaction of a compound (20) into a compound (10) having a substructure (1) in the presence of an ionic catal...
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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/2021/045165A1 |
The present invention provides a method for producing a perfluoroelastomer, wherein a perfluoroelastomer is obtained by polymerizing a perfluoromonomer in an aqueous medium in the presence of a polymer (1) that contains a polymerization ...
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WO/2021/025950A1 |
Vinyl resin compositions containing nanocrystalline materials, films formed therefrom, laminates formed from such films, and methods of making and using thereof are described herein.
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WO/2021/024797A1 |
Provided is a method for producing a fluoropolymer in which the efficiency of utilization of a polymerization initiator is improved. A method for producing a fluoropolymer, comprising the step of polymerizing a fluoromonomer in a water-b...
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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/2021/015291A1 |
Provided is a method for producing a fluoropolymer, characterized by comprising a polymerization step for obtaining a fluoropolymer by polymerizing a fluoromonomer in an aqueous medium having a pH of 4.0 or higher, in the presence of a h...
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WO/2021/010443A1 |
Provided is a method for producing a fluorine-containing elastomer characterized by including a polymerization step for emulsion polymerizing a fluorine-containing monomer in an aqueous medium in the presence of a fluorine-containing com...
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WO/2020/255776A1 |
This method for producing a vinyl chloride polymer involves using a polymerization device to polymerize a vinyl chloride monomer or a mixture of a vinyl chloride monomer and a monomer that is polymerizable therewith in an aqueous medium,...
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WO/2020/255777A1 |
A method for producing a vinyl chloride polymer by using a polymerization vessel to polymerize, in an aqueous medium, a vinyl chloride monomer or a mixture of a vinyl chloride monomer and a monomer which is co-polymerizable with the viny...
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WO/2020/218618A1 |
Provided is a process for producing an aqueous fluoropolymer dispersion, characterized by including a step A in which an unprocessed aqueous dispersion containing a fluoropolymer obtained by polymerization in the presence of a hydrocarbo...
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WO/2020/218619A1 |
Provided is a composition production method characterized by comprising a step A for performing ultrafiltration, precise filtration, or a dialysis membrane treatment, or a combination thereof on a composition containing water and a fluor...
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WO/2020/218620A1 |
Provided is a method for producing an aqueous fluoropolymer dispersion, the method being characterized by including a step A in which an untreated aqueous dispersion, which contains a fluoropolymer (where a polymer (I) is excluded) obtai...
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WO/2020/203840A1 |
The present invention provides a chlorinated vinyl-chloride-based resin which has an excellent efficiency of continuous molding and which can combine moldability with molded-article evenness. In a Raman imaging analysis by Raman spectros...
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WO/2020/203835A1 |
The present invention provides a chlorinated vinyl chloride-based resin which is prone to virtually no thermal decomposition, has excellent continuous productivity during a molding process, and can achieve both processability and unevenn...
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WO/2020/203858A1 |
The present invention provides a chlorinated vinyl chloride resin that makes it possible to produce a molded product having excellent moldability and easy softening property and also excellent gloss while having high heat resistance and ...
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WO/2020/203828A1 |
The present invention provides a chlorinated vinyl chloride resin that has superior continuous productivity during molding, and is capable of striking a balance between molded article workability and ability to prevent irregularities. Th...
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WO/2020/203839A1 |
The present invention provides a chlorinated vinyl chloride resin capable of achieving both molded product processability and prevention of unevenness as well as excellent molded product gloss. The present invention is a chlorinated viny...
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WO/2020/197485A1 |
A composition, a method of producing the composition and a method of producing a fluororesin dispersion from the composition, wherein the composition comprises: (i) a fluororesin having an average particle diameter of 1 μm or more and 5...
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WO/2020/189180A1 |
An objective of the present invention is to provide a resin film, an end of which can easily be released from a wound section in a wound-back state without tearing the resin film in the longitudinal direction. In order to achieve this ob...
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WO/2020/184427A1 |
Provided is a method for producing crosslinked rubber having excellent hardness and transparency. This method for producing crosslinked rubber is a method for producing crosslinked rubber obtained by crosslinking a composition containi...
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WO/2020/184437A1 |
Provided is a liquid composition comprising a powder of a heat-meltable tetrafluoroethylene-based polymer in a good dispersed state and a high concentration of an aromatic resin and having a viscosity excellent in handleability. The li...
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WO/2020/166988A1 |
The present invention can provide an ion exchange membrane for a fuel cell, the ion exchange membrane comprising polytetrafluorethylene (PTFE) hydrophilically modified through a reaction with a modification mixture solution containing a ...
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WO/2020/162623A1 |
This composition is characterized by: having a rupture strength of not less than 10.0N; including a polytetrafluoroethylene; and being substantially free of a chemical compound shown in the general formula (3). General formula (3): (H-(C...
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WO/2020/162512A1 |
Provided is a method for producing a tetrafluoroethylene polymer containing at least 40 mol% of a polymerized unit based on tetrafluoroethylene, the method being characterized by comprising a step (I) for polymerizing tetrafluoroethylene...
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WO/2020/158940A1 |
The present invention provides a method for producing polytetrafluoroethylene which includes a polymerization step for polymerizing tetrafluoroethylene in an aqueous medium in the presence of a hydrocarbon-based surfactant and a polymeri...
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WO/2020/136679A1 |
The present invention relates to a process for the polymerization of fluoromonomers in an aqueous medium, said process comprising the steps of: forming an aqueous emulsion comprising a 2-Alkoxy acetate surfactant and fluoromonomer in a r...
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WO/2020/127654A1 |
A process for the preparation of perhaloacyl peroxides from perhaloacyl halides which is performed in the presence of a hydrofluoroether as the solvent.
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WO/2020/126448A1 |
The present invention pertains to an aqueous dispersion of a vinylidene fluoride polymer having a high molecular weight and possessing a substantially linear structure, leading to reduced amount of gels/insoluble fractions, to a method f...
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WO/2020/126449A1 |
The present invention pertains to an aqueous dispersion of a vinylidene fluoride polymer having a high molecular weight and possessing a substantially linear structure, leading to reduced amount of gels/insoluble fractions, to a method f...
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WO/2020/130411A1 |
The present invention relates to a method for manufacturing a chlorinated polyvinyl chloride resin. Provided according to the present invention is a method capable of manufacturing a chlorinated polyvinyl chloride resin with sacrificing ...
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WO/2020/130860A1 |
A method of activating inert polymeric materials, in particular fluoropolymers, wherein the activation process of inert polymers, especially fluoropolymers, is carried out by direct treatment of aqueous solution of base Piranha mixture (...
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WO/2020/121981A1 |
The present invention provides: a tetrafluoroethylene polymer which enables the achievement of an air filter medium that is suppressed low in pressure loss, while having a homogenized pressure loss at a plurality of positions; an air fil...
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WO/2020/116652A1 |
A polymer production method is provided with which a sulfonic acid group-containing polymer that has a high TQ value and a high ion exchange capacity can be achieved. This production method of a fluorine-containing polymer containing a f...
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WO/2020/116935A1 |
The present invention relates to a method for manufacturing a chlorinated polyvinyl chloride resin, and provides a method wherein, by optimizing all of: a polymerization step of preparing a vinyl chloride-based polymer; a step of chlorin...
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WO/2020/116645A1 |
Provided is a liquid composition that can be used to form a solid polymer electrolyte membrane which has excellent early power generation characteristics when used in a membrane electrode assembly, and has excellent durability with few d...
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WO/2020/102271A2 |
Described herein is a perfluoropolymer and compositions therefrom. The perfluoropolymer is derived from: (a) no more than 88 mol% tetrafluoroethylene monomer; and (b) a complementary amount of a perfluoro (cycloaliphatic methyl vinyl eth...
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WO/2020/091342A1 |
The present invention relates to a vinyl chloride-based polymer having a pH of 7-11, an olefin defect number (NO) of 1.5 or less, and a chlorine defect number (NC) of 11.0 or less, and the vinyl chloride-based polymer has few defects ove...
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WO/2020/091429A1 |
The present invention can provide a composition for preparing a vinyl chloride-based polymer and a method for preparing a vinyl chloride-based polymer using same, the composition comprising: a transition metal catalyst; and a pH adjuster...
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WO/2020/091427A1 |
The present invention can provide a method for preparing a vinyl chloride-based polymer, wherein a carbonate-based metal salt is fed together with a transition metal catalyst while adjusting the feeding time and the feeding amount of the...
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WO/2020/091340A1 |
The present invention can provide a method for preparing a vinyl chloride-based polymer, the method comprising a step of feeding a dissociative normal salt to polymerize vinyl chloride monomers in the presence of at least one emulsifier ...
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WO/2020/076023A1 |
The present invention provides a composition for polymerizing a vinyl chloride-based polymer, and a method for preparing a vinyl chloride-based polymer using said composition, wherein the composition is characterized by comprising: a vin...
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WO/2020/075726A1 |
The present invention provides a composition which is capable of maintaining a high solid content and low viscosity state. A composition characterized in that: a fluorine-containing polymer contains a unit that is based on fluoroolefin a...
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WO/2020/076024A1 |
Provided in the present invention is a method for preparing a polymerization initiator composition comprising the steps of: (a) mixing a water-soluble initiator in water to prepare an aqueous initiator solution having a concentration of ...
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WO/2020/071504A1 |
Provided is a polytetrafluoroethylene production method including a polymerization step that obtains a polytetrafluoroethylene by polymerizing a tetrafluoroethylene in an aqueous medium in the presence of a nucleating agent and a hydroca...
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WO/2020/060028A1 |
The present invention relates to a method for producing a vinyl chloride-based polymer having improved processability by exhibiting excellent blending properties, and a vinyl chloride-based polymer produced thereby, and provides a vinyl ...
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WO/2020/031642A1 |
The objective of the present invention is to provide a composition capable of forming a coating film that has excellent abrasion resistance and antifouling properties. This composition is characterized by including a perfluorocarbon sulf...
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