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JP4885539B2 |
There is provided a porous membrane of vinylidene fluoride resin which has pores of appropriate size and distribution and also excellent mechanical strength represented by tensile strength and elongation at break and is useful as a micro...
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JP4861170B2 |
The present invention relates to an aqueous dispersion polymerization process for preparing a (co)polymer wherein an organic peroxide is used as initiator (as a source of free radicals) during the polymerization process in conjunction wi...
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JP4863604B2 |
There is described a method for applying an aqueous solution to the internal walls of a reactor, before the start of the polymerization reaction of vinyl chloride and/or vinyl acetate, which aqueous solution contains a salt of an anti-sc...
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JP4855624B2 |
Perfluoroelastomers, curable by peroxidic route, obtainable by polymerizing the following monomers: a) tetrafluoroethylene (TFE); b) fluorovinylethers of general formula: CFX=CXOCF2OR c) bis-olefins having general formula: R 1R 2 C=C...
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JP4851254B2 |
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JP4852879B2 |
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JP2012500322A |
Fluoropolymers containing one or more azide group wherein the azide group is not a sulfonyl-azide group and processes of preparing them.
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JP4846496B2 |
To provide a crosslinked polytetrafluoroethylene resin having a powdery amorphous crosslinked structure, and its manufacturing method. The amorphous crosslinked polytetrafluoroethylene resin is characterized in that the crystal melting h...
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JP4842558B2 |
Nonfluorinated surfactants selected from C7-C20 linear 1-alkanesulfonates,-2-sulfonates, and-1,2-disulfonates are particularly effective for stabilizing emulsions in preparing non-elastomeric fluoropolymers containing at least 71 wt% vin...
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JP4839616B2 |
The present invention provides a process for preparing a fluorine-containing polymer having few branched chains and little weight change in high temperatures, which is a new process wherein composition distribution substantially does not...
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JP4843496B2 |
The invention relates to the field of chemistry and relates to radically coupled PTFE polymer powders that can be used, for example, as tribomaterials, and a method for the production thereof. There is disclosed radically coupled PTFE po...
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JP4843228B2 |
To provide a vinyl chloride-based resin composition having both characteristics of excellent moldability and processability and mechanical strength and its molded product. The vinyl chloride-based resin composition is obtained by using a...
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JP4841888B2 |
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JP4842474B2 |
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JP4840280B2 |
To provide a polytetrafluoroethylene powder which can be used for producing a molded product with improved surface roughness Ra, tensile strength and/or tensile elongation, as compared with a conventional powder and with favorable dielec...
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JP4838799B2 |
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JP4834971B2 |
The present invention provides a method of producing an elastomeric fluoropolymer excellent in productivity and crosslinkability. The present invention is a method of producing an elastomeric fluoropolymer comprising polymerizing a fluor...
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JP4830313B2 |
To provide a method for producing a fluorine-containing elastomer which comprises a specific functional group at the end of the main chain and/or at the end of the side chain, a curable composition comprising the same elastomer, and a cu...
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JP4828783B2 |
A method of making a curable fluoroelastomer is disclosed. The method comprises the steps of preemulsifying at least one perfluorovinylether in water, and copolymerizing the preemulsified perfluorovinylether with a gaseous fluorinated mo...
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JP4824311B2 |
The present invention is based on quad-fluoropolymer suitable for the preparation of a fluoroelastomer. The fluoropolymer comprises repeating units derived from 10 to 40 mol % of tetrafluoroethylene, 40 to 65 mol % of vinylidene fluoride...
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JP4821323B2 |
The present invention provides a method of producing a fluoropolymer aqueous dispersion by which the fluorine-containing emulsifier contained in the fluoropolymer aqueous dispersion as obtained after polymerization can be efficiently rem...
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JP4812055B2 |
To provide a manufacturing method for a polyelectrolyte, having high mechanical strength, high safety and a high photoelectric transducing function, and to provide a photoelectric transducer using it. A polyelectrolyte is manufactured by...
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JP4806978B2 |
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JP4801353B2 |
Chemical reactions are carried out with molten fluoropolymer, most conveniently in an extruder, wherein the reaction zone in the extruder is isolated from the melting zone, and the molten fluoropolymer is subdivided in the reaction zone ...
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JP4802438B2 |
The present invention produces an unsaturated compound (Formula 2) useful as a fluororesin starting material and the like by using a compound of the Formula 1 as a starting material. That is, the present invention provides a method for p...
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JP4797347B2 |
To provide a preparation method of a low-molecular-weight polytetrafluoroethylene aqueous dispersion which is excellent in dispersion stability. In the preparation method of the low-molecular-weight polytetrafluoroethylene (with an avera...
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JP4795525B2 |
The invention relates to improvements in drug delivery devices and particularly those for dispensing a metered dose of medicament. Apparatus (10,100) is provides for dispensing medicament wherein at least a portion of one or more of the ...
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JP4792622B2 |
A tetrafluoroethylene(TFE)/perfluoro (alkyl vinyl ether) (PVE) copolymer and a method for producing the copolymer, wherein the molar ratio of polymerized units based on TFE/polymerized units based on PVE is in the range of from 98.1/1.9 ...
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JP4792681B2 |
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JP4792612B2 |
To provide the stabilization method, in which unstable groups of melt-processable fluorine-containing polymer having unstable groups can be stabilized rapidly and effectively, and even if the obtained stabilized polymer is melt-molded, a...
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JP4781622B2 |
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JP4777575B2 |
High purity fluoropolymers are obtained by the emulsion polymerization process, removing essentially all ions and coagulating the polymer essentially without adding ions. These polymers are useful in the field of electronic devices.
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JP4774675B2 |
The present invention provides a polytetrafluoroethylene powder having moldability/processability as well as electrical characteristics in microwave bands. The present invention is a modified polytetrafluoroethylene powder which has (1) ...
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JP2011173959A |
To provide a method for producing a fluorine-containing polymer latex having environmental degradability and remarkably reducing the amount of a residual emulsifier.A fluorine-containing polymer latex is produced by emulsion polymerizati...
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JP4770010B2 |
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JP4757528B2 |
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JP4756041B2 |
A process for reducing the fluorosurfactant content of an aqueous fluoropolymer dispersion by filling a shipping container with fluoropolymer dispersion and contacting the dispersion with a fluorosurfactant sorbent in the shipping contai...
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JP4752843B2 |
There is provided a fluorine-containing polymer having an ionic group which has a heteroaromatic ring and is useful as a material comprising various heteroaromatic ring compounds having a stable fluorine-containing heteroaromatic ring, a...
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JP4742410B2 |
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JP4741508B2 |
A method for producing fluorinated compounds, in which a compound represented by the following formula (4) is produced by reaction of 2-chloro-2,2-difluoroacetaldhyde and ethyleneoxide.
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JP4728701B2 |
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JP2011137171A |
To provide a method of manufacturing a high purity halogenated polymer essentially free of metal ions and metal salts.In the method, when a polymer consisting of polymer units of one or more halogenated monomers and at least one cure sit...
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JP4725115B2 |
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JP4724918B2 |
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JP4720734B2 |
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JP4719975B2 |
Spherulites in a molded article obtained from a melt-processable crystalline fluorine-containing resin composition are minimized to give the transparent molded article having a smooth surface and being resistant to contamination. An agen...
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JP4714991B2 |
A process for preparing a fluorine-containing polymer through emulsion polymerization method which enhances productivity while maintaining excellent physical properties of the fluorine-containing polymer and comprises (a) a first polymer...
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JP4714325B2 |
Chlorotrifluoroethylene (CTFE) thermoplastic copolymers, comprising: (a) from 0.15 to 4% by moles of one or more fluorodioxoles having the general formula: wherein: X1 and X2, equal to or different from each other, are selected among -F ...
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JP4701436B2 |
This invention provides a method of bonding substantially non-fluorinated polymeric material to a fluoropolymer utilizing a bonding composition comprising primary or secondary di- or poly-amine and a melt-processable, substantantially no...
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JP4696914B2 |
To provide a novel fluorinated dioxolan compound which can be used as a raw material for a fluorinated polymer excellent in characteristics such as heat resistance, mechanical strength, transparency and rigidity, and a novel polymer. A c...
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