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9023963 Process for production of fluorine-containing polymers and fluorine-containing polymers  
A method of producing a fluoropolymer by which a melt-processable fluoropolymer (A) having a specific unstable terminal group or groups (P) is subjected to melt-kneading in a kneader having a...
9012580 Tetrafluoroethylene/hexafluoropropylene copolymer and the production method thereof, and electrical wire  
A tetrafluoroethylene/hexafluoropropylene copolymer has improved moldability in melt extrusion molding, especially with significant reduction of defects in high-speed extrusion coating of an...
8997797 Fluororesin and riser pipe  
An object of the present invention it to provide a novel fluororesin that has excellent mechanical strength and chemical resistance, and very low permeability at high temperature. The fluorine...
8969500 Melt-processible fluoropolymers having long-chain branches, methods of preparing them and uses thereof  
The present disclosure describes fluoropolymers having long chain branches and methods of making these fluoropolymers. These fluoropolymers may have improved melt processing properties. Shaped...
8971707 LAN cables  
Use in LAN cable applications, as materials for the coating of the primary cable and for the external jacket, of TFE thermoprocessable perfluoropolymers comprising perfluoroalkylvinylethers in the...
8952115 Method for producing fluorine-containing polymer  
An object of the present invention is to provide a method for producing a fluoropolymer which produces a large number of particles with a small particle size using a specific non-fluorous compound...
8937132 Polytetrafluoroethylene mixture  
Provided is a material that can be easily biaxially oriented, homogeneously stretched even with a high draw ratio, and formed into a PTFE porous membrane with low pressure loss. The present...
8927668 Fluorinated elastic copolymer and method for its production  
To provide a fluorinated elastic copolymer which is excellent in crosslinking reactivity and extrusion moldability and which is curable to obtain a rubber excellent in permanent compression set...
8927666 Polymerization of monomers using fluorinated propylene solvents  
The present invention relates to the polymerization and copolymerization of monomers in the presence of fluorinated propylene solvents. More particularly, the present invention relates to the use...
8906821 Curing compositions for fluoropolymers  
A catalyst composition comprising a cation and an anion of the formula Anq−Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+is an organo onium, and Aq−is an anion,...
8901264 Copolymer and method for producing the same  
To provide a copolymer which can impart sufficient dynamic water repellency, after air-drying water repellency and friction durability to a surface of an article, and which has low impact on the...
8895681 Processes for preparing low molecular weight hexafluoropropylene-olefin cotelomers  
Amorphous hydrofluoroolefin telomers are prepared by a free-radical polymerization process conducted at high temperature and pressure in the presence of non-monomeric chain transfer agent.
8883947 Method of forming thin film  
A vinylidene fluoride homopolymer represented by the formula (4): CF3-(A1)-I (4) wherein A1 represents a structural unit of vinylidene fluoride homopolymer which includes crystal form I alone or...
8883313 Modified polytetrafluoroethylene powder and method for producing tetrafluoroethylene polymer  
The present invention provides a polytetrafluoroethylene powder having moldability/processability as well as electrical characteristics in microwave bands. The present invention is a modified...
8877870 Fluorinated elastic copolymer and process for its production, and crosslinked rubber article  
A fluorinated elastic copolymer which has iodine atoms, bromine atoms, or both iodine and bromine atoms, at its molecular terminals and which includes repeating units (a) based on...
8865839 Polytetrafluoroethylene mixture  
Provided is a material that can be easily biaxially oriented, homogeneously stretched even with a high draw ratio, and formed into a polytetrafluoroethylene porous membrane with low pressure loss....
8835551 Ultra low viscosity iodine containing amorphous fluoropolymers  
Iodine containing amorphous fluoropolymers having at least one fluoropolymer with a cure site, where the fluoropolymer has a Mooney viscosity of 2 or less (ML 1+10) at 100° C. according to ASTM...
8829132 Ethylene/tetrafluoroethylene copolymer  
To provide an ethylene/tetrafluoroethylene copolymer which is excellent in heat resistance and flexibility. An ethylene/tetrafluoroethylene copolymer comprising repeating units (A) based on...
8785581 Fluoroelastomer, curable composition and cured rubber article  
A noncrystalline fluoroelastomer which is a copolymer consisting essentially of vinylidene fluoride and a fluoromonomer represented by the general formula (1): CH2═CFRf (1) wherein Rf is a...
8785580 Ultra-high molecular weight poly(vinylidene fluoride)  
The invention relates to a polyvinylidene fluoride polymer having an ultra-high molecular weight, and unexpected physical properties. The ultra-high molecular weight polymer is clear, has a lower...
8765890 Aqueous process for making fluoropolymers  
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...
8722809 Process for preparing end-modified vinylidene fluoride elastomer  
The present invention provides a preparation process for converting to a vinylidene fluoride elastomer having a group having sulfinic acid, sulfinic acid derivative, sulfonic acid or sulfonic acid...
8722780 Perfluoroelastomer composition and molded article hereof  
The present invention provides a perfluoroelastomer composition comprising: a perfluoroelastomer having a nitrogen-containing curing site; and a catalyst mixture comprising: a tertiary amine; and...
8716419 Fluorinated elastic copolymer and production process  
To provide a fluorinated elastic copolymer having high crosslinkability, having high flowability and excellent in the compression set and the resistance to bases, and its production process. A...
8697822 Polymerization of fluoropolymers using non-fluorinated surfactants  
The present invention relates to a method for the polymerization in an aqueous medium of monomers, and especially of fluoromonomers, using non-fluorinated surfactants; and the fluoropolymers...
8691344 Blended fluoropolymer compositions  
Blended fluoropolymer compositions are provided. In one embodiment, a liquid dispersion of a first fluoropolymer is blended with a liquid dispersion of a second fluoropolymer. The first...
8686078 Rubber composition and fuel tank packing for automobile using the composition  
Provided is a rubber composition, which is excellent in fuel permeation resistance, and is capable of achieving improvements in low-temperature embrittlement property and solvent crack property....
8648149 Radically coupled PTFE polymer compounds and method for the production thereof  
The invention relates to the field of chemistry and relates to radically coupled PTFE polymer compounds that can be used, for example, as tribo materials, and a method for the production thereof....
8637144 Expandable TFE copolymers, method of making, and porous, expended articles thereof  
A process for the polymerization of a true tetrafluoroethylene (TFE) copolymer of the fine powder type is provided, wherein the copolymer contains polymerized comonomer units of at least one...
8623977 Non-hydrocarbyl hydrophobically modified polycarboxylic polymers  
The present invention involves a cross-linked carboxylic acid hydrophobically modified copolymer product in which cross-linked carboxylic acid is modified with a non-hydrocarbyl hydrophobe,...
8575286 Vinylidene fluoride and trifluoroethylene containing polymers  
A polymer comprising recurring units derived from vinylidene fluoride (VDF) and trifluoroethylene (TrFE), such polymer comprising end groups of formula —CF2H and/or —CF2CH3 in an amount of at...
8575287 Method for producing polytetrafluoroethylene fine powder  
To provide a method for producing a PTFE fine powder having a low paste extrusion pressure property by a simple method. The method for producing a PTFE fine power comprises emulsion polymerizing...
8557938 Branched fluoropolymers  
The invention relates to the preparation of branched fluoropolymers having long chain branches and little or no gels, by a process involving polymerization at high temperatures using persulfates...
8557939 Antifouling composition, method for its production and article treated therewith  
To provide an antifouling composition which is a fluorine-type antifouling composition using a short chain perfluoroalkyl group and which is excellent in antifouling properties and water/oil...
8557883 Expandable functional TFE copolymer fine powder, the expandable functional products obtained therefrom and reaction of the expanded products  
A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that...
8552127 Method for the production of terpolymers based on VDF, TRFE and CFE, or CTFE  
A process for manufacturing terpolymers by polymerization of VDF (vinylidene difluoride), TrFE (trifluoroethylene), and CFE (1-chloro-1-fluoroethylene) or CTFE (chlorotrifluoroethylene) monomers...
8552128 Polymer processing simplification  
A process for the preparation of a fluoroolefin polymer from an azeotropic mixture of monomers having a constant composition, the process including the step of: contacting in a reaction zone:(i)...
8536237 Ionomeric membrane  
An ionomeric membrane formed of a sulphonic (per)fluorinated ionomer wherein the sulphonic groups are at the end of short side chains (SSC), said ionomer having: equivalent weight between 700 and...
8536269 Peroxidic fluoropolyether and its use in emulsion polymerization of fluorin-containing monomer  
The present invention provides peroxidic fluoropolyether and a fluorine-containing dispersion obtained from polymerization of fluorine-containing monomers in the presence of peroxidic...
8481661 Fluoroelastomer, curable composition and cured rubber article  
A noncrystalline fluoroelastomer which is a copolymer consisting essentially of vinylidene fluoride and a fluoromonomer represented by the general formula (1): CH2═CFRf (1) wherein Rf is a...
8470942 Method for producing melt-moldable tetrafluoroethylene copolymer  
The claimed invention relates to a method for producing a melt-moldable tetrafluoroethylene copolymer containing repeating units (a) based on tetrafluoroethylene and repeating units (b) based on...
8450439 Method of forming thin film  
There is provided a method of forming a thin film of vinylidene fluoride homopolymer having crystal form I which is applicable to various substrates in relatively easy way (coating conditions,...
8415439 Ethylene-tetrafluoroethylene copolymer  
The present invention provides an ETFE-type copolymer having a high melt tension and excellent blow moldability. An ethylene-tetrafluoroethylene copolymer which comprises ethylene units,...
8415070 Partially fluorinated cyclic ionic polymers and membranes  
Ionic polymers are made from selected partially fluorinated dienes, in which the repeat units are cycloaliphatic. The polymers are formed into membranes.
8410187 Polyvinylidene fluoride resin expanded beads, and molded articles of polyvinylidene fluoride resin expanded beads  
Provided are polyvinylidene fluoride resin expanded beads which can be molded by in-mold molding and thus stably provide, without impairing excellent characteristics inherent in polyvinylidene...
8394870 Crosslinked fluoropolymer networks  
Disclosed herein is a crosslinked fluoropolymer network formed by the free radical initiated crosslinking of a diacrylate fluoropolymer The diacrylate copolymer is of formula...
8394905 Fluoropolymers having diacrylate ends  
Disclosed herein is a telechelic diacrylate fluoropolymer and a process for manufacture of the fluoropolymer. The diacrylate copolymer is of formula CH2═CR′COO—(CH2)n—R—(CH2)n—OOCCR′═CH2, wherein...
8378063 Process for producing fluoropolymer particles  
A process for producing fluoropolymer particles includes preparing a solution/dispersion containing fluoropolymer dissolved/dispersed in a first solvent such that the swelling of fluoropolymer by...
8367776 Perfluoroelastomer compositions and methods of preparing same  
The present invention includes crosslinked perfluoroelastomeric compositions and molded articles formed from a cross-linkable perfluoroelastomeric composition having a first curable...
8362167 Fluorinated imidoylamidine vulcanizing agents for curing perfluoroelastomers polymers  
The invention provides a compound and tautomeric forms thereof having the formula: wherein Rf1 is selected from the group consisting of hydrogen, a straight chain, branched secondary or branched...