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JP7389366B2 |
The present disclosure provides a method for producing a fluoropolymer aqueous dispersion, the method comprising a step A of performing ultrafiltration, microfiltration, or dialysis membrane treatment, or a combination thereof on a pretr...
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JP7386973B2 |
The present invention pertains to: a batch-type suspension polymerization stirrer for producing polyvinyl chloride; and a batch-type suspension polymerization reactor using same. More specifically, the present invention pertains to a bat...
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JP7385150B2 |
The purpose of the present disclosure is to provide a method for producing, from low-molecular-weight polytetrafluoroethylene, refined polytetrafluoroethylene powder in which short-chain fluorine compounds are reduced. The present disclo...
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JP2023166629A |
To provide a production method which enables production of a fluoropolymer containing substantially no dimer or trimer of a monomer which constitutes a polymer used for polymerization of a fluoromonomer.Provided is a production method of...
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JP7379575B2 |
A method for chlorinating polyvinyl chloride, the method comprising providing polyvinyl chloride particles having a chlorination accelerant associated therewith, where the particles are suspended in water; and chlorinating the polyvinyl ...
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JP2023164481A |
To provide an electrophotographic photoreceptor that has an outermost surface layer containing fluorine-containing resin particles excellent in electrification characteristics.An electrophotographic photoreceptor has a conductive substra...
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JP2023162423A |
To provide a polytetrafluoroethylene fine powder which is reduced in the moisture content and impurities.The present disclosure provides a polytetrafluoroethylene fine powder which does not substantially contain moisture and a fluorine-c...
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JP7375045B2 |
A method for controlling the Mooney viscosity of a peroxide vulcanized fluororubber, comprising: in the polymerization process of a peroxide vulcanized fluororubber, using a continuous supplementation mode to add an initiator solution, a...
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JP7371680B2 |
To provide a polymer electrolyte membrane which can be applied to a polymer electrolyte water electrolyzer, and is capable of producing a polymer electrolyte water electrolyzer having a low electrolytic voltage and excellent in hydrogen ...
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JP2023158062A |
To provide a production method by which a fluoropolymer substantially free from dimers and trimers of a monomer constituting a polymer used in polymerization of a fluoromonomer can be produced.A method for producing a fluoropolymer inclu...
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JP2023545118A |
The present invention achieves improved melting speed and mechanical properties by pre-mixing a mixed dispersant containing a highly hydrated polyvinyl alcohol and a carbonate metal salt before polymerization, and then polymerizing the v...
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JP7368759B2 |
The present disclosure provides a method for producing a perfluoroelastomer, comprising carrying out polymerization of a perfluoromonomer in an aqueous medium in the presence of a polymer (1) to provide a perfluoroelastomer, the polymer ...
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JP2023543807A |
A process of polymerizing at least one fluoromonomer in an aqueous medium containing an initiator and a hydrocarbon dispersant to form an aqueous dispersion of fluoropolymer particles. Hydrocarbon dispersants include compounds of formula...
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JP2023152978A |
To provide a coated wire having a coating layer having a uniform thickness which can be easily formed by an extrusion molding method and can maintain excellent tensile creep resistance at 150°C, excellent ductility to tensile force appl...
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JP2023153081A |
To provide a fluororesin composition which is excellent in tensile characteristics and handleability regardless of containing a fluororesin which has a heating history at a temperature equal to or higher than a melting point, and a moldi...
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JP7360058B2 |
The present disclosure provides a method for producing a fluoropolymer, the method comprising: polymerizing a monomer (I) represented by the general formula (I) below in an aqueous medium substantially in the absence of a fluorine-contai...
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JP2023138913A |
To provide a vinyl chloride-based resin for paste processing which suppresses formation of a crater when a sheet is prepared by coating onto a base material, can obtain a foam excellent in surface smoothness in foaming, is also excellent...
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JP7353267B2 |
The present invention relates to a method for stabilizing aqueous dispersions, notably of polymers based on vinylidene fluoride (VDF), and to the use of the stabilized aqueous dispersion thus obtained in electrochemical applications.
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JP7352110B2 |
The present disclosure provides a method for producing a fluoropolymer, the method comprising polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1) to obtain a fluoropolymer, wherein the polymer (1) is a poly...
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JP2023540700A |
The present invention comprises one or more polymers A comprising repeating units derived from ethylene and repeating units derived from halogenated monomers selected from chlorotrifluoroethylene (CTFE) and tetrafluoroethylene (TFE). , r...
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JP2023540107A |
The present invention provides reactive polymer compatibilizers and compatibilized polymer blends. The reactive polymer compatibilizer is generally a copolymer of a fluoropolymer and a non-fluoropolymer that improves the compatibility of...
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JP7345454B2 |
The invention pertains to a method of making fluoropolymer dispersions using certain polyfunctional perfluoropolyether derivatives including a plurality of ionisable groups selected from the group consisting of —SO.sub.3X.sub.a, —PO....
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JP2023127849A |
To provide a method of producing a polymer-layered substrate that highly exhibits the physical properties of a tetrafluoroethylene polymer and contained inorganic particles, and has low linear expansion, excellent electrical properties, ...
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JP2023123689A |
To provide a PTFE aqueous dispersion having low viscosity at high temperature.A PTFE aqueous dispersion contains PTFE and a nonionic surfactant, has a PTFE solid concentration of 50 to 70 mass%, is substantially free from a fluorine-cont...
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JP7337759B2 |
To provide a method that makes it possible to obtain a perfluoroalkadiene compound with high yield while the generated amount of an impurity difficult to separate is minimized.The present invention provides a method for manufacturing a p...
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JP2023118900A |
To provide a method for producing a novel fluoropolymer.There is provided a method for producing a fluoropolymer which comprises a step of polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1) containing a po...
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JP7333777B2 |
A composition (D) containing (A) a modified poly(vinyl alcohol) and (B) an unsaturated monocarboxylic acid or a salt thereof, the composition (D) being characterized in that the modified poly(vinyl alcohol) (A) has a viscosity average po...
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JP2023536099A |
The present disclosure provides a process for removing fluoroorganic acidic compounds from an emulsion of fluoroorganic polymer particles comprising the steps of: (i) a. fluoroorganic polymer particles, at least one fluoroorganic acidic ...
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JP2023115245A |
To provide a fluororesin having coloration reduced when heated and a production method of a fluororesin.A fluororesin contains a residue unit represented by the following general formula (1) and has a total content of chrome, iron, and n...
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JP2023112130A |
To provide a novel method for producing a fluoropolymer.A method for producing a fluoropolymer includes the step of polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to yield a fluoropolymer. The surfactan...
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JP7322896B2 |
To provide a liquid composition capable of forming a polymer electrolyte membrane which is excellent in the initial power generation characteristics when made into a membrane electrode assembly, and which is excellent in durability and h...
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JP2023108942A |
To provide a composition for an electrode having excellent sedimentation stability.There is provided a composition for an electrode which comprises a polymer and a solvent, wherein the polymer contains trifluoroethylene units, the conten...
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JP7321394B2 |
A dispersant for suspension polymerization may, even when a usage amount thereof is low, enable obtaining polymer particles having a small average particle diameter with few coarse particles, and having favorable plasticizer absorptivity...
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JP7316264B2 |
A composition (D) comprising: modified polyvinyl alcohol (A); and unsaturated monocarboxylic acid or a salt thereof (B), wherein the modified polyvinyl alcohol (A) has a viscosity-average degree of polymerization of 400 or more and 3500 ...
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JP7303468B2 |
The purpose of the present disclosure is to provide a polytetrafluoroethylene powder for a binder for an electrode, a binder for an electrode, an electrode mixture, an electrode and a secondary battery, in which it is possible to minimiz...
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JP7303470B2 |
The purpose of the present disclosure is to provide a polytetrafluoroethylene powder for electrode binders, an electrode binder, an electrode mixture, an electrode, and a secondary battery which are sustainable products, and which can su...
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JP2023093313A |
To provide a suspension polymerization method which stabilizes polymerization and prevents adhesion of a united substance of a vinyl chloride-based resin in a polymerization vessel, when a basic inorganic matter is added into a suspensio...
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JP2023092212A |
To provide a laminate having excellent adhesion of a crosslinked product of a polymer having a unit based on epichlorohydrin and a layer containing a crosslinked product of a fluorine-containing polymer under a high temperature environme...
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JP2023527545A |
The present invention relates generally to the field of electrical energy storage in lithium accumulators of the Li-ion type. More specifically, the present invention relates to a Li-ion battery positive electrode binder, a method for pr...
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JP7299510B2 |
Provided is a composition comprising a polytetrafluoroethylene and a polymer (I) containing a polymerization unit (I) based on a monomer represented by the following general formula (I), the composition having a standard specific gravity...
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JP7299513B2 |
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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JP7297235B2 |
To provide a method that makes it possible to produce fluorine-containing polymers of fine particles.A method for producing fluorine-containing polymers has a polymerization step in which bubbles containing fluorine-containing olefin for...
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JP7295507B2 |
To provide a method for producing fluororesin particles containing a fluorine-containing aliphatic cyclic structure which is excellent in productivity, can remove a foreign matter, has a large bulk density, is excellent in handleability ...
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JP7293214B2 |
The present invention relates to a fluorosurfactant-free emulsion polymerization method for the synthesis of a fluoropolymer, more in particular of a VDF-based polymer.
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JP7291550B2 |
A method for producing a vinyl chloride type polymer is to produce the vinyl chloride type polymer by polymerizing a vinyl chloride monomer, or a mixture of a vinyl chloride monomer with a monomer copolymerizable with the vinyl chloride ...
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JP7291551B2 |
A method for producing a vinyl chloride type polymer is to produce the vinyl chloride type polymer by polymerizing a vinyl chloride monomer, or a mixture of a vinyl chloride monomer with a monomer copolymerizable with the vinyl chloride ...
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JP2023525157A |
The present invention relates to a method of polymerizing at least one monomer comprising a vinylidene fluoride monomer, the method comprising contacting the at least one monomer with a polymerization initiator and an oxidizing agent, wh...
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JP2023082204A |
To provide a polytetrafluoroethylene that can easily be extruded at a high reduction ratio.Provided is polytetrafluoroethylene which has color tone L* of 20 to 85 and a cylinder extrusion pressure of 120 MPa or less at a reduction ratio ...
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JP7287404B2 |
To provide a method for producing a polymer, whereby it is possible to obtain a sulfonic acid group-containing polymer having a high TQ value and a high ion exchange capacity. A method for producing a fluorosulfonyl group-containing fluo...
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JP7286619B2 |
The present invention provides a dispersion stabilizer for suspension polymerization of a vinyl compound, which is reduced in the methanol content, while being also reduced in the amount of components that are insoluble in an aqueous sol...
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