Class / Patent application number | Description | Number of patent applications / Date published |
524545000 | Fluorine-containing monomer contains F and C only or only F, C, and H | 59 |
20080207823 | Active Compositions And Methods - The present concerns a method of fabricating a layer for an organic light emitting device comprising solution processing a layer from a solution comprising a small molecule emissive material, an aprotic solvent, and a polymeric material. | 08-28-2008 |
20090048391 | COMPOSITION FOR AQUEOUS COATING MATERIAL AND PROCESS FOR ITS PRODUCTION, AND TWO-COMPONENT CURABLE AQUEOUS COATING MATERIAL KIT - A composition for aqueous coating material which has a low content of an organic solvent and presents little burden on the environment and which is excellent in storage stability. | 02-19-2009 |
20090082519 | PROCESS FOR PREPARING FLUORINE-CONTAINING POLYMER AND FLUORINE-CONTAINING POLYMER PREPARED BY SAID PREPARATION PROCESS - The present invention provides the process for preparing a fluorine-containing polymer which can easily and efficiently separate a fluorine-containing polymer and water from an aqueous dispersion of a fluorine-containing polymer, and the fluorine-containing polymer obtained by the mentioned preparation process. Further the present invention provides the molded article obtained by crosslinking a curable composition comprising the above-mentioned fluorine-containing polymer and a crosslinking agent. The preparation process is a process for preparing a fluorine-containing polymer comprising a step for heat-treating an aqueous dispersion of a fluorine-containing polymer having a concentration of 3 to 70% by weight to obtain the fluorine-containing polymer having a water content of not more than 1% by weight. | 03-26-2009 |
20090234061 | Process for Producing a Fluororesin Sheet Containing a Filler and a Fluororesin Sheet Containing a Filler - A process for producing a fluororesin sheet containing a filler includes a step of rolling a sheet-forming resin composition including a fluororesin, a filler and a processing aid at a roll temperature of from 40 to 80° C. The processing aid includes at least 30% by mass of a petroleum hydrocarbon solvent having a fractionating temperature of not higher than 120° C. based on 100% by mass of the amount of the processing aid. The fluororesin sheet so produced provides high stress relaxation properties along with high hermetic sealing properties even when the content of the fluororesin is low and the content of the filler is high. | 09-17-2009 |
20100152363 | Aqueous Polymerization of Fluorinated Monomer Using Polymerization Agent Comprising Fluoropolyether Acid or Salt and Short Chain Fluorosurfactant - A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising:
| 06-17-2010 |
20100190917 | AQUEOUS COATING COMPOSITION, PROCESS FOR PRODUCING IT AND TWO-PACK TYPE CURABLE AQUEOUS COATING KIT - To provide an aqueous coating composition which has a low content of an organic solvent, whereby a burden on an environment is small; in which an increase of the molecular weight, gelation, etc. are suppressed; which performs excellent storage stability and provides a coating film having good water permeability/water resistance. | 07-29-2010 |
20130150519 | METHOD OF PRODUCING FLUOROPOLYMERS USING ACID-FUNCTIONALIZED MONOMERS - A fluoropolymer latex is obtained by emulsion polymerization of one or more fluoromonomers in the presence of one or more acid-functionalized monomers such as vinyl sulfonic acid or a salt thereof. A fluorosurfactant need not be present. | 06-13-2013 |
20130289199 | METHOD FOR OBTAINING A PIEZOELECTRIC LINER FOR A HIGH PRESSURE STORAGE VESSEL - The piezoelectric and barrier liner for a high-pressure storage vessel is made out of PVDF-TrFE copolymer and the amount of crystallinity in the liner material is over 30%, preferably 35% at least. | 10-31-2013 |
20140011947 | ENVIRONMENTALLY FRIENDLY BACKSHEET FOR SOLAR CELL AND METHOD OF MANUFACTURING THE SAME - An environmentally friendly backsheet for a solar cell, a method of manufacturing the same, and a photoelectric cell module are provided. The backsheet for a solar cell is manufactured by preparing an aqueous dispersion composition by dispersing a fluorine-based polymer in water, applying the aqueous dispersion composition to a substrate, and melting the aqueous dispersion composition. Therefore, compared to the conventional art using an organic solvent, an increase in production cost may be prevented, and the backsheet is environmentally friendly since an organic solvent having high toxicity is not used. In addition, the backsheet has better physical properties such as adhesive strength and color change stability under the extreme conditions (high temperature and humidity), compared to a backsheet for a solar cell commercially available in the current market. | 01-09-2014 |
524546000 | Four or more fluorine atoms | 50 |
20080207824 | Method for Dispersing Carbon Nanotubes in a Polymer Matrix - The invention concerns a method for dispersing carbon nanotubes in a polymer matrix including a step of preparing carbon nanotubes coated with a polymer coating by a method for polymerizing a monomer using a catalytic system wherein carbon nanotubes are used as catalytic support, the carbon nanotubes comprising in surface the catalytic system for polymerizing the coating polymer, and the coating polymer being non-miscible in the host polymer matrix, followed by a step of hot process mixing of the coated carbon nanotubes with a polymer matrix. | 08-28-2008 |
20080287599 | FLUOROPOLYMER DISPERSION CONTAINING NO OR LITTLE LOW MOLECULAR WEIGHT FLUORINATED SURFACTANT - The present invention provides a fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of 10 to 400 nm dispersed in water whereby the dispersion is free of fluorinated surfactant having a molecular weight of less than 1000 g/mol or contains the fluorinated surfactant having a molecular weight of less than 1000 g/mol in an amount of not more than 0.025% by weight based on the total weight of solids in the dispersion. The dispersion further comprises a non-ionic surfactant and an anionic surfactant selected from fluorinated anionic surfactants having a molecular weight of at least 1000 g/mol, non-fluorinated anionic surfactants and mixtures thereof. | 11-20-2008 |
20090069492 | PROCESS FOR PRODUCING AQUEOUS FLUOROPOLYMER DISPERSION - The invention provides a method of producing an aqueous fluoropolymer dispersion by which aqueous fluoropolymer dispersions high in fluoropolymer concentration can be prepared in a short period of time. The present invention provides a method of producing an aqueous fluoropolymer dispersion comprising a step (1) of adding a nonionic surfactant to an aqueous fluoropolymer dispersion to be treated, a step (2) of phase-separating into a supernatant phase and an aqueous fluoropolymer dispersion phase following the step (1), and a step (3) of recovering the aqueous fluoropolymer dispersion phase by removing the supernatant phase, stirring being provided in the step (2). | 03-12-2009 |
20090069493 | Process for Producing Aqueous Fluoropolymer Dispersion - The invention provides a method of producing an aqueous fluoropolymer dispersion having a fluoropolymer concentration sufficiently high for practical purposes by using the technique of phase separation. The present invention is a method of producing an aqueous fluoropolymer dispersion comprising a step (1) of adding a nonionic surfactant having a cloud point to an aqueous fluoropolymer dispersion to be treated, a step (2), following the step (1), of phase separating into a supernatant phase and an aqueous fluoropolymer dispersion phase within a specific temperature range, and a step (3) of recovering the aqueous fluoropolymer dispersion phase by removing the supernatant phase, the specific temperature range being lower than the cloud point of the nonionic surfactant. | 03-12-2009 |
20090088517 | CURING COMPOSITIONS FOR FLUOROPOLYMERS - A curative composition comprising a cation and an anion of the formula A | 04-02-2009 |
20090192260 | PROCESS FOR REMOVING FLUORINATED EMULSIFIER FROM FLUOROPOLMER DISPERSIONS USING AN ANION-EXCHANGE RESIN AND A pH-DEPENDENT SURFACTANT AND FLUOROPOLYMER DISPERSIONS CONTAINING A pH-DEPENDENT SURFACTANT - A process of reducing the amount of fluorinated emulsifiers in fluoropolymer dispersions by contacting the fluoropolymer dispersion with an anion exchange resin in the presence of a pH-dependent surfactant, and fluoropolymer dispersions containing the pH-dependent surfactant and uses thereof. | 07-30-2009 |
20090239994 | PROCESS FOR PRODUCING AQUEOUS FLUOROPOLYMER DISPERSION AND AQUEOUS FLUOROPOLYMER DISPERSION - 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 removed as well as a fluoropolymer aqueous dispersion low in fluorine-containing emulsifier concentration. The present invention is a method of producing a fluoropolymer aqueous dispersion which comprises carrying out a concentration treatment comprising a concentration operation of a pretreatment fluoropolymer aqueous dispersion, wherein the pretreatment fluoropolymer aqueous dispersion is obtained by carrying out a polymerization in an aqueous medium in the presence of a fluorine-containing surfactant (A), the fluorine-containing surfactant (A) is a fluorine-containing surfactant having an octanol/water partition coefficient of 1.5 to 3.5. | 09-24-2009 |
20090281231 | TETRAFLUOROETHYLENE POLYMER AND AQUEOUS DISPERSION THEREOF - The invention provides a TFE polymer capable of providing stretched materials excellent in membrane homogeneity. The present invention is related to a tetrafluoroethylene polymer having stretchability and non-melt-processability and having a standard specific gravity of 2.140 to 2.165, wherein, with regard to the heat-of-fusion curve obtained by subjecting the tetrafluoroethylene polymer in the form of an unbaked polymer to be measured having no history of being heated to a temperature of 300° C. or higher to differential scanning calorimetry at a programming rate of 2° C./minute, the ratio between the amount of heat, S | 11-12-2009 |
20100113680 | Aqueous Fluoropolymer Dispersion Stabilized with Amine Oxide Surfactant and Process for Making Coagulated Fluoropolymer Resin - An aqueous fluoropolymer dispersion comprising an aqueous medium, fluoropolymer particles, and an amine oxide surfactant. Coagulated fluoropolymer resin is produced from the dispersion by adding an acidic reagent in sufficient amount to cause coagulation and separation of the coagulated fluoropolymer resin from the aqueous medium. Another particulate component such as particular polymer, filler, pigment, solid lubricant, etc., may be added to the dispersion and co-coagulated to form a mixture of coagulated fluoropolymer resin and particulate component. | 05-06-2010 |
20100120972 | COMPOSITE COMPOSITIONS INCLUDING SEMI-AROMATIC POLYAMIDES AND CARBON FIBER, AND ARTICLES THEREOF - Disclosed is a thermoplastic composite composition including at least one semi-aromatic polyamide; a surface-treated carbon fiber having an aromatic sizing; optionally, from 0 to about 25 wt % PTFE; wherein the surface-treated carbon fiber has less than 1.0 wt % weight loss at 380° C., as measured by thermo-gravimetric analysis in air at 10° C./min. | 05-13-2010 |
20100222494 | PROCESS FOR PREPARING AQUEOUS DISPERSION OF FLUORINE-CONTAINING COMPOSITE POLYMER PARTICLES, AQUEOUS DISPERSION AND COMPOSITE POLYMER PARTICLES - There is provided an aqueous dispersion comprising fluorine-containing composite polymer particles which, even when an amount of a fluorine-containing polymer is smaller than that of conventional fluorine-containing polymer, makes it possible to obtain characteristics of the fluorine-containing polymer equal to or superior to those of conventional fluorine-containing polymer, and a process for preparing the aqueous dispersion. The process, which is used for preparing an aqueous dispersion comprising fluorine-containing composite polymer particles, is characterized by subjecting the polymer solution obtained by dissolving the fluorine-containing polymer (A) in the monomer (b) having an ethylenically unsaturated group to emulsion polymerization. | 09-02-2010 |
20100222495 | LONG-TERM STABLE OIL PTFE DISPERSION AND METHOD FOR ITS PRODUCTION - The invention relates to the field of chemistry and relates to long-term stable oil PTFE dispersions, such as can be used, for example, in transmissions or bearings, and a method for the production thereof. The object of the present invention is therefore to disclose a long-term stable oil PTFE dispersion as well as a simple and cost-effective method for the production thereof. The object is attained with an oil PTFE dispersion comprising PTFE particles and a monoolefinically or polyolefinically unsaturated oil, wherein molecules of the olefinically unsaturated oil are covalently/chemically coupled to PTFE (primary) particle surfaces via radical reactions, and wherein a permanent charge separation between the PTFE particle surfaces and the coupled oil molecules is present and a fine dispersion of the PTFE particles in the oil or oil mixture is present. The object is furthermore attained through a method in which the modified PTFE (emulsion) polymers are mixed with persistent perfluoro (peroxy) radicals jointly with an olefinically unsaturated oil and subsequently the modified PTFE (emulsion) polymers are subjected to a mechanical stress. | 09-02-2010 |
20100286330 | Thermal Reduction of Fluoroether Carboxylic Acids or Salts from Fluoropolymer Dispersions - A process for reducing the fluoroether carboxylic acid or salt content of aqueous fluoropolymer dispersion. The fluoroether carboxylic acid or salt employed comprises fluoroether carboxylic acid or salt having the formula below: | 11-11-2010 |
20100305262 | PROCESS FOR MANUFACTURING CLEAN FLUOROPOLYMERS - There is provided a fluoroelastomer characterized by containing one type or more types of fluorinated emulsifiers represented by the formula: F—(CF | 12-02-2010 |
20110152443 | METHOD OF MANUFACTURING POLYMER MATERIAL - A method of manufacturing a polymer material which is allowed to manufacture β-phase PVDF easily and stably in a short time is provided. The method of manufacturing a polymer material includes a step of mixing an ionic liquid and a polymer compound including α-phase polyvinylidene difluoride to form a mixture, and then heating the mixture. | 06-23-2011 |
20110294944 | Perfluoroelastomer - A peroxide curable perfluoroelastomer comprising: recurring units derived from tetrafluoroethylene (TFE); recurring units derived from perfluoroethylvinylether (EVE), in an amount of between 2 and 17% by moles, with respect to total recurring units derived from TFE, perfluoromethylvinylether (MVE) and EVE; and recurring units derived from perfluoromethylvinylether (MVE), in an amount of between 23 and 35% by moles, with respect to total recurring units derived from TFE, perfluoromethylvinylether (MVE) and EVE. A process for its manufacture and its use for the manufacture of cured articles. | 12-01-2011 |
20110294945 | AQUEOUS FLUORINE-CONTAINING POLYMER DISPERSION - The present invention provides an aqueous fluoropolymer dispersion having good mechanical characteristics and storage stability and containing substantially no fluorinated surfactant. The present invention is related to an aqueous fluoropolymer dispersion comprising a dispersed fluoropolymer particle with an average primary particle diameter of 50 to 400 nm, a surface layer of the dispersed fluoropolymer particle being obtained by emulsion polymerization of a monomer composition consisting of 99.999 to 98 mole percent of tetrafluoroethylene and 0.001 to 2 mole percent of a modifier monomer, a fluorinated surfactant content being not higher than 50 ppm, a fluoropolymer content being 20 to 75% by mass, and a nonfluorinated nonionic surfactant content being 2 to 15% by mass relative to 100% by mass of the fluoropolymer. | 12-01-2011 |
20120029140 | LOW-STAINING ROOM TEMPERATURE CURABLE COATING COMPOSITION - The present invention provides a low-staining room temperature curable coating composition having an excellent low-staining property and recoatability, and comprising (A) a hydroxyl-containing resin, (B) an isocyanate based curing agent, (C) an organosilicate based hydrophilizing agent, (D) a recoatability modifier and (E) an organic solvent, in which the recoatability modifier (D) comprises at least (D1) an amide-containing polymer and (D2) a silane coupling agent. | 02-02-2012 |
20120065321 | CURING COMPOSITIONS FOR FLUOROPOLYMERS - A catalyst composition comprising a cation and an anion of the formula A | 03-15-2012 |
20120101214 | LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE POWDER AND PREPARATION METHOD THEREFOR - The present invention provides a low-molecular weight polytetrafluoroethylene powder that, when used as an additive in a coating material, etc., can form a coating with excellent texture and gliding properties, while also improving dispersibility and viscosity; and a production process therefor. The present invention is a process for producing a low-molecular weight polytetrafluoroethylene powder, the process comprising: an emulsion polymerization step of polymerizing at least tetrafluoroethylene in the presence of a polymerization initiator and an aqueous medium to produce emulsified particles thereof; an agglomeration step of agglomerating the emulsified particles to form an agglomerated powder thereof; and a suspension polymerization step of polymerizing at least tetrafluoroethylene in the presence of the agglomerated powder, a polymerization initiator, and an aqueous medium. | 04-26-2012 |
20120101215 | METHOD OF MANUFACTURING POLYTETRAFLUOROETHYLENE PARTICLE AGGREGATE AND METHOD OF MANUFACTURING POLYTETRAFLUOROETHYLENE PRODUCT - The present invention provides a method of manufacturing a polytetrafluoroethylene (PTFE) product offering better productivity and a higher degree of flexibility in form of the product to be obtained than the conventional methods of manufacturing a PTFE product, and a method of manufacturing PTFE particle aggregate obtained as an intermediate while manufacturing a PTFE product. According to the manufacturing methods, aggregate of PTFE particles including water and a surfactant is obtained by applying force to a dispersion of PTFE particles containing PTFE particles, a surfactant and water as a dispersion medium, where the force makes the PTFE particles approach or contact with each other. Such a manufacturing method may be carried out, for example, with a chamber ( | 04-26-2012 |
20120116009 | FLAME RETARDANT ADDITIVE OF FLUOROPOLYMERS IN FLAME RETARDANTS - The problem of lack of uniform dispersion of a fluoropolymer as a flame retardant additive to thermoplastic resins is solved by a dispersion of a fluoropolymer in a flame retardant which is then blended as particles with a thermoplastic resin in molten form. Furthermore, flame retardant precursors are reacted in the presence of a fluoropolymer to form a molten flame retardant mixed with the fluoropolymer in another aspect. | 05-10-2012 |
20120196974 | CURED PERFLUOROELASTOMER DIAPHRAGM - A cured perfluoroelastomer diaphragm comprises A) perfluoroelastomer and B) 10 to 50 parts by weight, per hundred parts by weight perfluoroelastomer, of carbon black a nitrogen adsorption specific area of 70-150 m | 08-02-2012 |
20120309892 | BINDER COMPOSITION FOR POSITIVE ELECTRODES - A binder composition for the positive electrode of an electric storage device. The composition contains polymer alloy particles composed of: a polymer (A) having a recurring unit derived from vinylidene fluoride, ethylene tetrafluoride, propylene hexafluoride, or mixtures thereof; a polymer (B) having a recurring unit derived from an unsaturated carboxylic acid ester; and water. The average diameter of the polymer alloy particles is 50 to 400 nm. The polymer alloy particles are synthesized by absorbing a monomer (b) to the polymer (A) and polymerizing the monomer (b) to synthesize the polymer (B). The monomer (b) is an unsaturated carboxylic acid ester, or a mixture of an unsaturated carboxylic acid ester and one or more of the following monomers: an α,β-unsaturated nitrile compound, an unsaturated carboxylic acid, a conjugated diene compound, styrene, α-methylstyrene, p-methylstyrene, vinyltoluene, chlorostyrene, divinylbenzene, a carboxylic vinyl ester, and an acid anhydride of an ethylenically unsaturated dicarboxylic acid. | 12-06-2012 |
20130023620 | Fluoropolymer-based hybrid organic/inorganic composites - A process for manufacturing a fluoropolymer hybrid organic/inorganic composite comprising:
| 01-24-2013 |
20130066010 | MOLDED BODY FOR BIODIESEL FUEL - The present invention provides a molded article for a biodiesel fuel having excellent durability against a biodiesel fuel. The invention is a molded article for a biodiesel fuel of which the surface to be contacted with a biodiesel fuel is made of a fluorine-containing ethylenic resin. | 03-14-2013 |
20130079461 | AQUEOUS PROCESS FOR MAKING A STABLE FLUOROPOLYMER DISPERSION - A novel aqueous polymerization process for making fluoropolymer dispersions is disclosed in which non-ionic non-fluorinated emulsifier is used to produce fluoropolymer emulsions. The emulsifiers used in the invention are those that contain segments of polyethylene glycol, polypropylene glycol, and/or polytetamethylene glycol with repeating units of 3 to 100. The process and fluoropolymer produced contain no fluorinated surfactant. | 03-28-2013 |
20130184400 | Coating of substrates with curable fluorinated copolymers - A process for coating flexible substrates applying a curable fluorinated copolymer A which is the reaction product of FC and
| 07-18-2013 |
20130184401 | METHOD FOR MANUFACTURING FINE POLYTETRAFLUOROETHYLENE POWDER - A method for manufacturing a polytetrafluoroethylene fine powder characterized by including the steps of (1) preparing an aqueous dispersion containing polytetrafluoroethylene, water, and a surfactant (A); (2) coagulating the polytetrafluoroethylene in the aqueous dispersion by agitating the aqueous dispersion with a discharge flow-type impeller; (3) collecting a wet powder of the polytetrafluoroethylene; and (4) drying the wet powder of the polytetrafluoroethylene. | 07-18-2013 |
20130225758 | FLUORO-RUBBER COMPOSITION AND BLADDER FOR TIRE FABRICATION - A fluoro rubber composition which is able to make both a high tensile strength and a high elongation at break after vulcanization compatible with each other and from which favorable mechanical characteristics are obtained even in a high-temperature environment; and a bladder for tire fabrication, which is manufactured using the same are provided. The fluoro rubber composition includes a rubber component containing a fluoro rubber and carbon black, wherein in a dynamic viscoelasticity test of an unvulcanized rubber by a rubber process analyzer (RPA) (measurement temperature: 100° C., measurement frequency: 1 Hz), a difference δG | 08-29-2013 |
20130261248 | CHARGE RETENTION MEDIUM - To provide a charge retention medium having a surface potential at a practical level, although it is obtained from a composition containing a fluorinated copolymer having repeating units based on tetrafluoroethylene and repeating units based on ethylene. | 10-03-2013 |
20130261249 | Low viscosity fluoroelastomers - The invention pertains to a low viscosity curable (per)fluoroelastomer [fluoroelastomer (A)] having a number-averaged molecular weight of 3 000 to 45 000, said (per)fluoroelastomer comprising at least 1% moles, with respect to the total moles of recurring units, of recurring units derived from at least one (per)fluoromethoxyalkylvinylether of formula (I): | 10-03-2013 |
20130274406 | REINFORCED FLUOROPOLYMER COMPOSITES COMPRISING SURFACE FUNCTIONALIZED NANOCRYSTALLINE CELLULOSE - A reinforced fluoropolymer composite is presented, which includes a fluoropolymer and a fluoro-functionalized nanocrystalline cellulose in which the outer circumference of the nanocrystalline cellulose has been functionalized with fluorinated substrates. The fluoro-functionalized nanocrystalline cellulose may be used to produce stable dispersions with fluoropolymers exhibiting enhanced adhesion between the nanocrystalline particles and fluoropolymer in a composite material, and decreased surface free energy of the cellulose surface. | 10-17-2013 |
20140005325 | HIGH MELTING FLUOROPOLYMERS | 01-02-2014 |
20140018492 | SOLVENT-BASED PAINT COMPOSITION AND FLUORINE-CONTAINING COPOLYMER - Provided is a paint composition which can give a coating having excellent stretchability and further having excellent contamination resistance. A solvent-based paint composition comprises a fluorocopolymer (I), and an organic solvent (II), the fluorocopolymer (I) including: a perhaloolefin structural unit (a) that contains two carbon atoms, a vinyl acetate structural unit (b), a hydroxyl group-containing vinyl monomer structural unit (c) represented by the following formula (1): CH | 01-16-2014 |
20140094557 | Expandable TFE Copolymers, Method of Making, and Porous, Expanded Articles Thereof - A true tetrafluoroethylene (TFE) copolymer of the fine powder type is provided, wherein the copolymer contains polymerized comonomer units of at least one comonomer other than TFE in concentrations of at least or exceeding 1.0 weight percent, and which can exceed 5.0 weight percent, wherein the copolymer is expandable, that is, the copolymer may be expanded to produce strong, useful, expanded TFE copolymeric articles having a microstructure of nodes interconnected by fibrils. Articles made from the expandable copolymer may include tapes, membranes, films, fibers, and are suitable in a variety of end applications, including medical devices. | 04-03-2014 |
20140163159 | FLUORINE-CONTAINING POLYMER POWDER, FILM, AND METHOD FOR PRODUCING FLUORINE-CONTAINING POLYMER POWDER - The present invention aims to provide a fluorine-containing polymer powder that is environmentally less harmful and forms a sufficiently smooth film without impairing the properties of the fluorine-containing polymers. The present invention relates to a fluorine-containing polymer powder including a fluorine-containing polymer prepared by suspension polymerization, which contains less than 0.1 ppm of a fluorine-containing surfactant and has an average particle size of not less than 1 μm and less than 100 μm and a bulk density of 0.90 to 1.50 g/cm | 06-12-2014 |
20140171584 | Fluorine-Containing Compounds and Their Polymers Useful for Anti-Reflection Film Materials and Resist Compositions - A fluorine-containing compound represented by the formula 1, | 06-19-2014 |
20140350168 | EMULSIONS AND METHODS OF MAKING EMULSIONS - Disclosed are methods for making emulsions and emulsions, that in some embodiments can be considered to be Pickering emulsions. | 11-27-2014 |
20150011697 | MELT-PROCESSIBLE VINYL FLUORIDE INTERPOLYMERS OF LOW CRYSTALLINITY - In a first aspect, a melt-processible interpolymer consists essentially of units derived from vinyl fluoride and at least two highly fluorinated monomers, at least one of the highly fluorinated monomers introducing into the polymer a side chain of at least one carbon atom. The interpolymer has a melt flow rate in a range of from about 2 to about 250 grams per 10 minutes at a temperature of 280° C. | 01-08-2015 |
20150031822 | FLUORORUBBER COMPOSITION - A fluororubber composition which includes a fluororubber (A) and a carbon black (B). The fluororubber (A) is a vinylidene fluoride-based fluororubber including a structural unit (VdF unit) derived from vinylidene fluoride and a structural unit derived from at least one monomer selected from the group consisting of hexafluoropropylene (HFP), 2,3,3,3-tetrafluoro propylene, and perfluoro(alkyl vinyl ether) (PAVE). The molar ratio of the VdF unit to the structural unit derived from at least one monomer selected from the group consisting of HFP, 2,3,3,3-tetrafluoro propylene, and PAVE is 50/50 to 78/22. The fluororubber composition has a difference δG′ (G′ (1%)-G′ (100%)) of not lower than 120 kPa and not higher than 3,000 kPa, where G′ (1%) denotes a modulus of shearing elasticity at a dynamic strain of 1%, G′ (100%) denotes a modulus of shearing elasticity at a dynamic strain of 100%, and G′ (1%) and G′ (100%) are determined by a dynamic viscoelasticity test. | 01-29-2015 |
20150065642 | ORGANIC-INORGANIC COMPOSITE FILM AND METHOD FOR MANUFACTURING THE SAME - Disclosed is a method of manufacturing an organic-inorganic composite film. The method includes co-sputtering an inorganic target and a fluorine-containing organic polymer target, thereby simultaneously depositing atoms from the inorganic target and atoms from the fluorine-containing organic polymer target on a substrate. As such, an organic-inorganic composite film is obtained. The organic-inorganic composite film includes a homogeneous, amorphous, and nonporous material composed of carbon, fluorine, oxygen and/or nitrogen, and M. M can be silicon, titanium, aluminum, chromium, or combinations thereof. | 03-05-2015 |
20150112015 | CURABLE FLUOROCOPOLYMER FORMED FROM TETRAFLUOROPROPENE - The present invention is directed to partially fluorinated copolymers and the production thereof. More specifically, the copolymers, which are preferably produced by a solution polymerization process, preferably have at least three units, the first unit selected from 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene, the second unit having a polymerized monomer selected from the vinyl esters and vinyl ethers, and the third unit having a polymerized monomer derived from a hydroxyl group-containing vinyl ether. The resulting copolymer is environmentally friendly, has favorable molecular weight characteristics, and may be shipped economically in high concentration. | 04-23-2015 |
20150119523 | CONTROLLED FREE-RADICAL COPOLYMERIZATION OF TRIFLUOROETHYLENE - The invention concerns a method for preparing block copolymers, comprising a step of controlled free-radical copolymerisation of trifluoroethylene with at least one additional monomer, different from trifluoroethylene, in the presence of a chain transfer agent, said chain transfer agent being a xanthate compound, a trithiocarbonate compound or a monoiodide compound. The invention also concerns the block copolymers likely to be obtained by this method. | 04-30-2015 |
20150322237 | POLYTETRAFLUOROETHYLENE AQUEOUS DISPERSION, AND POLYTETRAFLUOROETHYLENE FINE POWDER - The present invention aims to provide a polytetrafluoroethylene aqueous dispersion which contains significantly minute polytetrafluoroethylene particles and which is excellent in dispersion stability, and a significantly minute polytetrafluoroethylene fine powder. The polytetrafluoroethylene aqueous dispersion contains polytetrafluoroethylene particles including a tetrafluoroethylene unit alone or a tetrafluoroethylene unit and a modifying monomer unit derived from a modifying monomer copolymerizable with the tetrafluoroethylene unit. The polytetrafluoroethylene particles have a volume average particle size of not smaller than 0.1 nm but smaller than 20 nm. | 11-12-2015 |
20150361244 | POLYHYDROXY CURABLE FLUOROELASTOMER COMPOSITION - The invention disclosed herein is a curable fluoroelastomer composition comprising i) a fluoroelastomer, ii) a polyhydroxy curative and iii) a mixture of anion trappers comprising y-aluminum oxide hydroxide and magnesium oxide. Cured articles made therefrom are resistant to volume swell in carboxylic acids. | 12-17-2015 |
20160039959 | HIGH MELTING PTFE POLYMERS FOR MELT-PROCESSING - Provided are a tetrafluoroethylene copolymers having a melting point of at least 317° C., a melt flow index (MFI) at 372° C. and a 5 kg load (MFI 372/5) of from about 0.60 g/10 min up to about 15 g/10 min. Also provided are methods of forming a shaped article using the copolymers described above, shaped articles made with those copolymers and compositions containing such copolymers. | 02-11-2016 |
20160083565 | PTFE RESIN COMPOSITION - Disclosed is a PTFE resin composition comprising 70 to 90 wt. % of polytetrafluoroethylene or modified polytetrafluoroethylene, and 30 to 10 wt. % of curved carbon fibers. The PTFE resin composition, which is prepared by blending a specific amount of curved carbon fibers with PTFE or modified PTFE, can be effectively used as a molding material that can provide a water pump lip seal material having excellent deformation resistance, abrasion resistance, and sealing properties against cooling water. In particular, even when this composition is used as a vehicle cooling water circulating pump seal, the falling of the carbon fibers can be effectively prevented even under severe conditions, i.e., cooling water seal, and the leakage of cooling water caused by deformation and abrasion during use does not occur; thus, the sealing properties thereof can be sufficiently satisfied. | 03-24-2016 |
20160122549 | CARBON BLACK POLYMERIC FILLER USEFUL FOR PRINTING APPLICATIONS - This disclosure is directed to functionalized carbon black material that may be particularly usable for as a filler material to a number of beneficial uses, particularly in image forming devices. The disclosed functionalized carbon black material compositions include hydrophobic carbon black particles passivated with polymerized pentafluorostyrene. The disclosed surface passivated carbon black particles have a diameter in a range of 50 nanometers to 1 micron, and enable dispersion in fluorinated polymers, and fine dispersion in solvent. The disclosed surface passivated carbon black particles are particularly usable for improving operational characteristics of fluorosilicone-based reimageable surface layers of imaging members employed in variable data digital lithographic image forming devices. | 05-05-2016 |
20160376417 | Inorganic Material Composite - The invention relates to a ceramic particulate and polymer composite having enhanced viscoelastic and rheological properties. | 12-29-2016 |