| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 525199000 | Solid polymer derived from fluorine-containing ethylenic reactant | 62 |
| 20080249245 | BLENDS OF AMORPHOUS AND SEMICRYSTALLINE POLYMERS HAVING SHAPE MEMORY PROPERTIES - A shape memory polymeric material has a glass transition temperature, T | 10-09-2008 |
| 20080275188 | Suspension Particle Comprising Tetrafluoroethylene Polymer and Manufacturing Method Thereof - Disclosed therein is method for preparing novel suspension polymer comprising tetrafluoroethylene polymer, and powders or granules produced by the method. The suspension polymer of the present invention can be obtained by suspension polymerization of a styrene-based monomer, an acrylic monomer or a mixed monomer thereof in the presence of PTFE, followed by filtering and drying, and can be used as flame retarding properties improver of engineering plastic and the like. | 11-06-2008 |
| 20090030152 | High Electric Energy Density Polymer Capacitors With Fast Discharge Speed and High Efficiency Based On Unique Poly (Vinylidene Fluoride) Copolymers and Terpolymers as Dielectric Materials - An improved charge or energy storage device having a dielectric charge or energy storage layer including:
| 01-29-2009 |
| 20090054594 | FLUOROPOLYMER LOW REFLECTING LAYERS FOR PLASTIC LENSES AND DEVICES - A one or two layer coating system has been developed for plastic substrates. The one coating system low reflective layer consists of a fluorinated copolymer having the formula: VF2/TFE/HFP, VF2/HFP or VF2/TFE/PMVE. In the two coating system, the upper coating layer consists of TFE/HFP, VF | 02-26-2009 |
| 20090076224 | Composite Material Comprising Flourine-Containing Rubber, Fuel-Impermeable Sealing Material Comprising Same, and Process for Preparing Composite Material - The present invention provides a novel fluorine-containing rubber composite material having both of excellent fuel impermeability and excellent cold resistance, a fuel impermeable sealing material comprising the composite material and a process for preparing the composite material. The fluorine-containing rubber composite material comprises crosslinked particles of fluorine-containing silicone rubber dispersed in a fluorine-containing rubber. It is preferable that the fluorine-containing rubber comprises a vinylidene fluoride/tetrafluoroethylene/perfluoro vinyl ether copolymer, and the composite material has cold resistance of not more than −35° C. and fuel permeability of not more than 500 g·mm/m | 03-19-2009 |
| 20090093590 | Seal Material for Semiconductor Production Apparatus - A sealing material for a semiconductor manufacturing apparatus includes as rubber components, 80 to 50% by weight of a tetrafluoroethylene-perfluoroalkylvinylether type perfluoro elastomer (FFKM) and 20 to 50% by weight of a fluoroelastomer (FKM) other than FFKM (where FFKM+FKM=100% by weight). | 04-09-2009 |
| 20090118429 | CURABLE COMPOSITION AND FLUORINATED CURED PRODUCT - To provide a curable composition which provides a fluorinated cured product excellent in transparency, light resistance, heat resistance and mechanical strength and hardly damaged by stress concentration. | 05-07-2009 |
| 20090124759 | CROSSLINKABLE COMPOSITION AND MOLDED ARTICLE MADE OF SAME - The present invention provides a crosslinkable composition being capable of providing a molded article and a sealing material for an oxygen sensor which have excellent long-term heat resistance and satisfactory compression set. Also there is provided a molded article and a sealing material for an oxygen sensor which have excellent long-term heat resistance and satisfactory compression set. The crosslinkable composition comprises (A) a compound having at least one specific crosslinkable reaction group and (B) a nonperfluoro fluorine-containing elastomer being crosslinkable with the compound (A). | 05-14-2009 |
| 20100022713 | Fluoropolymer Blending Process - Aqueous dispersions on non-melt flowable PTFE and melt-fabricable perfluoropolymer are mixed together, followed by recovery of the resultant mixture of the dispersed particles of each of these polymers, and melt mixing of the resultant mixture of particles to obtain a blend in which the PTFE particles form the disperse phase and the perfluoropolymer forms the continuous phase, the melt mixing producing advantageous melt viscosities and the blend exhibiting advantageous physical properties even at high PTFE contents of about 30 wt %. | 01-28-2010 |
| 20100029853 | Controlled architecture copolymers prepared from vinyl phosphonate monomers - Controlled architecture copolymers comprise at least one block A obtained by polymerizing a mixture of ethylenically unsaturated monomers (A | 02-04-2010 |
| 20100197860 | Clear, impact modified, heat resistant polyvinyl halide compositions - A clear, impact modified, heat resistant polyvinyl chloride composition is provided comprising (a) at least one polyvinyl halide; (b) at least one clear impact modifier possessing a refractive index which is not more than about 2% above or below the refractive index of the polyvinyl halide; and (c) at least one clear heat modifier comprising a terpolymer obtained by the copolymerization of a vinyl aromatic monomer, an acrylonitrile and an alkyl acrylate or alkyl methacrylate, wherein the terpolymer possesses a refractive index which is not more than about 2% above or below the refractive index of the polyvinyl halide and possesses a weight average molecular weight ranging from about 75,000 to about 400,000. | 08-05-2010 |
| 20100249324 | PROCESS FOR PREPARING VINYLIDENE FLUORIDE HOMOPOLYMER HAVING I-FORM CRYSTAL STRUCTURE - The present invention provides a process for easily preparing a vinylidene fluoride homopolymer comprising an I-form crystal structure at high purity by selecting a solvent, and the process for preparing the vinylidene fluoride homopolymer comprises not less than 70% by mass of I-form crystal structure, which is obtained by dissolving a vinylidene fluoride homopolymer having a number average degree of polymerization of 3 to 20 in a solvent consisting of an organic solvent having a dipole moment of not less than 2.8 alone or comprising the organic solvent in a part, thereafter, evaporating the solvent. | 09-30-2010 |
| 20100273948 | FLUORINE-CONTAINING POLYMER POWDER, METHOD FOR PRODUCING THE SAME AND COATED ARTICLE - A stabilized fluorine-containing polymer powder having an average particle size of 5 to 100 μm is prepared by contacting a fluorine-containing polymer powder, which is prepared by milling the fluorine-containing polymer and removing fine particles, fibrous particles and coarse particles by classification, with a fluorinating agent so that the total number of unstable terminal groups is decreased to 7 to 50 per 10 | 10-28-2010 |
| 20110009567 | FLUIDITY IMPROVER FOR AROMATIC POLYCARBONATE RESIN, PROCESS FOR PRODUCING THE FLUIDITY IMPROVER FOR AROMATIC POLYCARBONATE RESIN, AROMATIC POLYCARBONATE RESIN COMPOSITION, AND MOLDED PRODUCT - A fluidity improver for a PC resin that improves the melt fluidity during molding without impairing the excellent properties of the PC resin, and also yields a molded product in which external appearance defects are unlikely. The fluidity improver for an aromatic polycarbonate resin according to the present invention is including a first polymer obtained by polymerizing 0.5 to 99.5 parts by mass of a monomer first mixture including 0.5 to 99.5% by mass of styrene and 0.5 to 99.5% by mass of phenyl (meth)acrylates, in the presence of a second polymer obtained by polymerizing 0.5 to 99.5 parts by mass of a second monomer mixture containing 0.5 to 50% by mass of α-methylstyrene, 0.5 to 99% by mass of styrene and 0.5 to 99% by mass of phenyl (meth)acrylates, wherein the combined total of both monomer mixtures is 100 parts by mass. | 01-13-2011 |
| 20110040039 | TETRAFLUOROETHYLENE POLYMER PARTICLES - Core-shell particles having a core of at least one tetrafluoroethylene (TFE) polymer and having an average primary particle size of less than 50 nm; and a shell of at least one acrylic polymer having recurring units, more than 50% by moles of which being derived from at least one ethylenically unsaturated monomer having directly bonded to one of the sp | 02-17-2011 |
| 20120010369 | RUBBER COMPOSITION AND THERMOPLASTIC RESIN COMPOSITION AND PRODUCTION METHOD THEREOF - The present application relates to a rubber composition containing a fluororubber, a radical initiator having a 1-minute half-life temperature of 280° C. or higher, and a crosslinking assistant having a melting point of 200° C. or higher and having two or more double bonds between carbon atoms; and a thermoplastic resin composition containing a fluororesin and the rubber composition. | 01-12-2012 |
| 20120046416 | IMPACT ADDITIVES - The invention relates to a polymer of core-shell structure containing a core having at least one elastomeric polymer, with a glass transition temperature of less than 25° C., and a shell having at least one polymer, with a glass transition temperature of greater than 25° C., where at least one of the polymers includes (meth)acrylic acid ester monomers containing organic carbon derived from biomass. The present invention also relates to a process for preparing the core-shell polymers and to their use as impact additives, and to a composition containing them. | 02-23-2012 |
| 20120108753 | CROSSLINKABLE FLUORINE RUBBER COMPOSITION, FLUORINE RUBBER MOLDED ARTICLE, AND METHOD FOR PRODUCING THE SAME - Provided is a cross-linkable fluororubber composition capable of giving a fluororubber cross-linked molded article that has excellent mechanical strength and low friction properties. The cross-linkable fluororubber composition includes a coagulum obtained by co-coagulating a fluororubber (A) and a fluororesin (B). | 05-03-2012 |
| 20120172530 | Fluoropolymer Molding Method and Molded Article - A fluoropolymer molding method and the resulting molded article are disclosed where the fluoropolymer is composed of fluoropolymer particles each having a multi-layer structure that consists of at least two types of fluoropolymers having different melting points, with at least one inner layer made of a fluoropolymer with a melting point higher than that of the outermost fluoropolymer. The fluoropolymer of the at least one inner layer is molded at a temperature higher than the melting point of the lowest melting point of the fluoropolymers that form the outermost layers of the multi-layer-structure fluoropolymer particles, and lower than the melting point of the fluoropolymer having the highest melting point. The resulting articles have excellent chemical liquid resistance and gas impermeability and low linear expansion coefficient. | 07-05-2012 |
| 20120178880 | POLYMER BLENDS ELECTROSTRICTIVE TERPOLYMER WITH OTHER POLYMERS - Polymer blends having improved electromechanical responses and mechanical properties for use in electromechanical application are disclosed. In particular, polymer blend including at least one electrostrictive terpolymer, e.g., poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) or a derivative thereof, and at least one fluoropolymer, e.g., PVDF or derivative thereof such as PVD-TrFE are disclosed. The polymer blends advantageously have a transverse strain, i.e., a strain perpendicular to the applied electric field direction, that is about 1.5% or higher (as measured at 100 MV/m) while also having an elastic modulus of no less than about 400 MPa (as measured at 30° C. and 1 Hz by dynamic mechanical analyzer). | 07-12-2012 |
| 20120302702 | Compositions including polytetrafluoroethylene and processes for the preparation thereof - A process or method for preparing a composition that includes a core of polytetrafluoroethylene and a styrene/acrylonitrile shell (or a core-shell polytetrafluoroethylene including styrene/acrylonitrile (SAN) powder) is provided. The process includes a polymerisation process or reaction and a flocculation process or reaction. The temperatures utilized, and/or the relative quantities and/or concentrations of the reagents, for the polymerisation process and flocculation process are specifically selected. The core-shell polytetrafluoroethylene-based powder produced is used as an additive for plastic/polymers, for instance styrene-based polymers. The core-shell polytetrafluoroethylene-based powder produced is associated with improved workability and enhanced mechanical characteristics. | 11-29-2012 |
| 20140005334 | Polymers Of Fluorinated Monomers And Hydrocarbon Monomers | 01-02-2014 |
| 20140005335 | POLYMER PROCESSING SIMPLIFICATION | 01-02-2014 |
| 20140066573 | POLYMER PREPARING METHOD AND POLYMER PREPARED BY THE SAME - Provided is a polymer preparing method. By additionally inputting a catalytic reducing agent that reduces an inactivated metal complex compound catalyst to an activated metal complex compound catalyst, a polymer polymerized at a high conversion ratio of a monomer can be provided. | 03-06-2014 |
| 20140213730 | MILLING PROCESS - The invention pertains to a process for cryogenic milling mixtures of (per)fluoroelastomers and semicrystalline thermoplastic VDF polymers, and to free-flowing micronized pellets obtainable therefrom, said micronized pellets advantageously yielding, after extrusion and compounding, excellent mechanical properties, even improved over those of base fluoroelastomer matrix. | 07-31-2014 |
| 20140296438 | 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 melting point, reduced crystallinity, excellent impact resistance, and a high elongation at the yield point. The ultra-high molecular weight polyvinylidene fluoride can be alone, or blended with other polymers, in final applications and articles. | 10-02-2014 |
| 20160002447 | ACRYLONITRILE BUTADIENE RUBBER COMPOSITION, ACRYLONITRILE BUTADIENE RUBBER MOLDED ARTICLE, AND METHOD FOR PRODUCING SAME - An object of the present invention is to provide an acrylonitrile-butadiene rubber composition that can provide an acrylonitrile-butadiene rubber molded article having excellent properties of non-stickiness, oil resistance, heat resistance, and low-friction properties. The acrylonitrile-butadiene rubber composition of the present invention includes: an acrylonitrile-butadiene rubber (A); and a fluororesin (B), the fluororesin (B) being a perhalopolymer, the composition formed from a co-coagulated composition obtainable by co-coagulating the acrylonitrile-butadiene rubber (A) and the fluororesin (B). | 01-07-2016 |
| 20160032087 | FLUORINE-CONTAINING POLYMER COMPOSITION - Described herein is a melt-processible polymer composition comprising:
| 02-04-2016 |
| 20160152750 | PROCESSING AIDS AND POLYMER FORMULATIONS CONTAINING THE SAME AND METHOD FOR PRODUCING THE SAME | 06-02-2016 |
| 20160377600 | DEFINED THREE-DIMENSIONAL MICROENVIRONMENT FOR STEM CELL - This disclosure provides for a three-dimensional (3D) microenvironment presenting defined physical or mechanical cues that regulate cellular behavior and use of the matrix. The disclosure also provides for devices and methods for screening for optimal combinations of physical and mechanical cues in order to create a microenvironment that can regulate specific cellular behavior such as cell growth, proliferation, migration or differentiation. | 12-29-2016 |
| 525200000 | Fluorine reactant contains atoms other than C, H, or Hal | 32 |
| 20080293888 | Photocrosslinkable Materials - A diamine compound of formula (I) is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound. | 11-27-2008 |
| 20090005511 | Fluoroelastomers - VDF-based curable fluorelastomers, having a glass transition temperature from −10° C. to −35° C., comprising: B) monomer of formula: CF | 01-01-2009 |
| 20090023863 | CROSS-LINKED FLUORINE-CONTAINING COPOLYMER MOLDINGS - A cross-linked fluorine-containing copolymer moldings applicable to a plasma irradiation step, which is molded as a peroxide cross-linking product of a fluorine-containing copolymer blend comprising a fluorine-containing elastomer copolymer and a fluorine-containing resin copolymer, which is a vinylidene fluoride-tetrafluoroethylene copolymer, both of the copolymers having reaction sites capable of reacting with a common peroxide-based cross-linking agent, respectively, has desired normal state physical properties and compression set value, even if applied to a plasma irradiation step, while reducing particle generation quantity of the fluorine-containing copolymers themselves. | 01-22-2009 |
| 20090030153 | FLUOROELASTOMERS - VDF curable fluoroelastomers, ionically cured, having a compression set after a time of 24 h (ASTM D 39/B) at −10° C. lower than 60%, preferably lower than 50% and at −25° C. lower than 90%, preferably lower than 75%, comprising hexafluoropropene (HFP) in amounts higher than 10% by moles and one vinylether of formula: CF | 01-29-2009 |
| 20090088529 | FLUOROELASTOMERS - VDF-based curable fluoroelastomers, having a glass transition temperature lower than −49° C., preferably lower than −50° C., and having the following composition, as percent by moles: A) from 25% to 50%, preferably from 30% to 45%, of the monomer of formula: CF2=CFOCF | 04-02-2009 |
| 20090093591 | Processing aid for melt-extrudable polymers - An extrudable composition comprising a non-fluorinated, melt processable host polymer and from about 25 parts per million by weight to about 50% by weight, based on total weight of said extrudable composition, of a fluoropolymer consisting essentially of copolymerized units of from 45 to 95 mole percent, based on total weight of said fluoropolymer, of tetrafluoroethylene (TFE) and from 5 and 55 mole percent, based on total weight of said fluoropolymer, of 3,3,3-trifluoropropylene (TFP). | 04-09-2009 |
| 20090105420 | Thermoplastic Fluoropolymer Composition - This invention pertains to a thermoplastic fluoropolymer composition comprising:
| 04-23-2009 |
| 20090281245 | NOVEL PROTON EXCHANGE MEMBRANES FOR FUEL CELL APPLICATIONS - A proton conductive graft polymer comprises at least a structure unit of a sulfonated polymer side chain covalently attached to a hydrophobic perfluorocyclobutane polymer main chain. The sulfonated condensation polymer side chain has a high local ion exchange capacity while the main polymer chain is substantially free of sulfonic acid group. A membrane made from the graft polymer can provide good mechanical properties and high proton conductivity at wide range of humidity and temperatures. | 11-12-2009 |
| 20090306296 | CROSSLINKABLE POLYTETRAFLUOROETHYLENE COMPOSITION OF MATTER, POWDERED POLYTETRAFLUOROETHYLENE CROSSLINKED BODY, POLYTETRAFLUOROETHYLENE MOLDED BODY, RESIN BLEND COMPOSITION OF MATTER AND RESIN BLEND MOLDED BODY - The object of the present invention is to offer a PTFE resin that can be prepared by common molding methods such as compression molding and the like without the necessity for expensive equipment or hot coining methods or the like that are deleterious to productivity, and where harmful substances are not generated during manufacture, and convention strength, crystallinity and surface characteristics are preserved, and where there is neither anisotropy nor heterogeneity, and where the PTFE resin is more difficult to deform than is conventional PTFE resin. A crosslinkable polytetrafluoroethylene composition of matter contains polytetrafluoroethylene and a crosslinking agent. The polytetrafluoroethylene possesses at least one reactive functional group selected from the group consisting of cyano (—CN), carboxyl (—COOH), alkoxycarbonyl (—COOR (where R is a monovalent organic group)) and acid halide (—COX (where X is a halogen atom)) on at least one of the main chain and side chain terminal ends. The crosslinking agent reacts with one or a plurality of reactive functional groups and can form a cyclic structure. | 12-10-2009 |
| 20090326154 | Additives for Halopolymers - Polymeric compositions comprising:
| 12-31-2009 |
| 20100087599 | FLUORORESIN COMPOSITION, FLUORORESIN MOLDED ARTICLE AND METHOD FOR PRODUCING THE SAME - The invention provides a fluororesin composition capable of providing a molded article having low relative dielectric constant, excellent in a temperature stability and causing only small transmission losses. The invention is a fluororesin composition wherein a rate of change in relative dielectric constant between 25° C. and 80° C. of a molded article produced therefrom under a standard condition is not greater than 0.2%. | 04-08-2010 |
| 20100130690 | METHOD FOR MOLDING POLYTETRAFLUOROETHYLENE, POLYTETRAFLUOROETHYLENE MOLDED BODY, CROSSLINKABLE POLYTETRAFLUOROETHYLENE, POWDERED POLYTETRAFLUOROETHYLENE CROSSLINKED BODY, RESIN BLEND COMPOSITION OF MATTER AND RESIN BLEND MOLDED BODY - A PTFE resin does not require the hot coining method and is more difficult to deform than conventional PTFE resins. A polytetrafluoroethylene molded body is obtained from a crosslinking polytetrafluoroethylene that possesses at least one type of reactive functional group selected from the group that comprises cyano group (—CN), a first functional group and a second functional group. The first functional group is represented by: | 05-27-2010 |
| 20100168337 | GRADED TOPCOAT MATERIALS FOR IMMERSION LITHOGRAPHY - A topcoat material for immersion lithography and a method of performing immersion lithography using the topcoat material. The topcoat material includes a mixture of a first polymer and a second polymer. The first and second polymers of the topcoat material, when the topcoat material is formed into a topcoat layer between an immersion fluid and a photoresist layer, disperse non-homogenously throughout the topcoat layer. | 07-01-2010 |
| 20100179287 | WATER/OIL REPELLENT COMPOSITION AND ARTICLE - To provide a water/oil repellent composition which can impart water/oil repellency with excellent friction durability to a surface of an article, even though while having structural units based on a monomer having an R | 07-15-2010 |
| 20100197861 | Fluoropolymer Molding Process and Fluoropolymer Molded Product - A fluoropolymer molding process is provided for molding a mixture of at least two of fluoropolymers having different melting points at a temperature that is at or above the melting point of the fluoropolymer with the lowest melting point and is less than the melting point of the fluoropolymer with the highest melting point, and the resultant fluoropolymer molded product has excellent resistance to chemical and gas permeation and a low coefficient of linear expansion. | 08-05-2010 |
| 20100324222 | CURABLE FLUOROELASTOMER COMPOSITIONS - This invention relates to curable fluoroelastomer compositions comprising a) fluoroelastomers having either nitrile, alkyne or azide cure sites and b) fluorinated curatives containing diazide, dinitrile or dialkyne groups for reacting with cure sites on the fluoroelastomer. Fluoroelastomers having azide cure sites form crosslinks with curatives having dinitrile or dialkyne groups. Fluoroelastomers having nitrile or alkyne cure sites form crosslinks with curatives having diazide groups. | 12-23-2010 |
| 20110124816 | FLUORORESIN FILM AND FLUORORESIN-LAMINATED ACRYLIC RESIN FILM - An object of the present invention is to provide a novel monolayer and multilayer film that can be employed also for use in interior and exterior members of vehicles, and that have excellent transparency, surface hardness, chemical resistance, and stain resistance such as lactic acid resistance and sunscreen resistance. The present invention is directed to a fluororesin film formed with (C) a fluororesin comprising (B) a fluorinated (meth)acrylic resin that contains a fluorine-containing alkyl(meth)acrylate polymer component; and a fuororesin-laminated acrylic resin film, wherein the fluororesin film layer is laminated on at least one face of a film layer comprising (A) an acrylic resin. | 05-26-2011 |
| 20110224377 | POLY(VINYL ESTER) BLOCK COPOLYMERS - Poly(vinyl ester) block copolymers comprising blocks of two or more different vinyl ester repeating units. The vinyl ester repeating units may be | 09-15-2011 |
| 20110237751 | Vulcanized (per)fluoroelastomer sealing articles - This invention pertains to sealing articles of vulcanized (per)fluoroelastomer compositions incorporating particles of a vinylidene fluoride (VDF) polymers having a Shore A hardness of at least 85 when determined according to ASTM D 2240 Type A Durometer method, and a compression set of less than 30%, when determined according to ASTM D395 at 200° C. for 70 h on O-ring according to ASTM D1414, and to a process for their manufacture by vulcanizing-molding and thermal post-treating at a temperature above the melting point of the VDF polymer. | 09-29-2011 |
| 20110263793 | (Per)fluoroelastomeric compositions - Extrudable (per)fluoroelastomer compositions comprising crosslinkable (per)fluoroelastomers having:
| 10-27-2011 |
| 20120035326 | Flex Life of Tetrafluoroethylene/Perfluoro(Alkyl Vinyl Ether) Copolymer (PFA) - A process is provided for improving the MIT flex life of tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, said perfluoroalkyl containing from 1 to 5 carbon atoms, comprising incorporating melt flowable polytetrafluoroethylene into said copolymer and thereafter heat treating the resultant composition at a temperature of at least 280° C., the amount of said polytetrafluoroethylene and said heat treatment being effective to increase the flex life of said composition by at least 2× the flex life of both said copolymer and said composition prior to said heat treatment and to thermally transform the composition in the solid state, which is epitaxial co-crystallization of the polymer components of the composition. | 02-09-2012 |
| 20120077935 | FLUORINE-CONTAINING ELASTOMER COMPOSITIONS SUITABLE FOR HIGH TEMPERATURE APPLICATIONS - A curable fluorine-containing elastomer composition is described which includes a first curable perfluoropolymer comprising tetrafluoroethylene, a first perfluoroalkylvinyl ether and at least one first cure site monomer having at least one cure site, wherein tetrafluoroethylene is present in the first curable perfluoropolymer in an amount of at least about 50 mole percent; a second curable perfluoropolymer comprising tetrafluoroethylene, a second perfluoroalkylvinyl ether and at least one second cure site monomer having at least one cure site, wherein the second curable perfluoropolymer comprises fluoroplastic particles therein; and at least one curative. Cured compositions and molded articles formed from such compositions are also disclosed. | 03-29-2012 |
| 20130123429 | Melt-Fabricable Tetrafluoroethylene/perfluoro(alkyl vinyl ether) Copolymer Having Improved Heat Aging Property - Heat aging of the composition comprising melt-fabricable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, the alkyl containing 1 to 5 carbon atoms and melt flowable polytetrafluoroethylene is effective to cause thermal transformation of the composition in the solid state, which is epitaxial co-crystallization of the polymer components of the composition, and other valuable changes, such as increased continuous use temperature. | 05-16-2013 |
| 20130158202 | PROCESS FOR MANUFACTURING FLUOROELASTOMER COMPOSITIONS CONTAINING FLUOROPLASTIC FIBRILS - Disclosed herein is a process for the manufacture of a fluoroelastomer composition containing fluoropolymer fibrils. The process comprises applying shear to a fluoroelastomer gum in a mixer while adding a liquid dispersion of fibrillatable fluoropolymer. | 06-20-2013 |
| 20130303701 | Employing Pretreatment and Fluorination of Fluoropolymer Resin to Reduce Discoloration - Process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous dispersion medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from the aqueous medium by separating fluoropolymer resin in wet form from the aqueous medium and drying to produce fluoropolymer resin in dry form. The process comprises:
| 11-14-2013 |
| 20140364571 | PROCESS FOR MANUFACTURING FLUOROELASTOMER COMPOSITIONS CONTAINING FLUOROPLASTIC FIBRILS - Disclosed herein is a process for the manufacture of a fluoroelastomer composition containing fluoropolymer fibrils. The process comprises applying shear to a fluoroelastomer gum in a mixer while adding a liquid dispersion of fibrillatable fluoropolymer. | 12-11-2014 |
| 20140378616 | CROSSLINKABLE FLUORINE RUBBER COMPOSITION, FLUORINE RUBBER MOLDED ARTICLE, AND METHOD FOR PRODUCING SAME - A crosslinkable fluororubber composition containing: a fluororubber (A); and a fluororesin (B), wherein the fluororesin (B) is a copolymer (B1) consisting of tetrafluoroethylene units (a) and hexafluoropropylene units (b) or a copolymer (B2) containing tetrafluoroethylene units (a), hexafluoropropylene units (b), and polymerized units (c) derived from a monomer copolymerizable with tetrafluoroethylene and hexafluoropropylene, the copolymer (B1) satisfies the condition that the ratio (a)/(b) is (80.0 to 87.3)/(12.7 to 20.0) on a molar basis, and the copolymer (B2) satisfies the condition that the ratio (a)/(b) is (80.0 to 90.0)/(10.0 to 20.0) on a molar basis, and the ratio (c)/{(a)+(b)} is (0.1 to 10.0)/(90.0 to 99.9) on a molar basis. | 12-25-2014 |
| 20150337096 | FLUOROPOLYMER COMPOSITION INCLUDING AN OLIGOMER HAVING AN ULTRAVIOLET ABSORBING GROUP - A composition that includes a blend of a fluoropolymer and an ultraviolet light-absorbing oligomer. The oligomer has a first divalent unit having a pendent ultraviolet absorbing group and at least one of a second divalent unit that is non-fluorinated or a third divalent unit that is fluorinated. The pendent ultraviolet absorbing group can include a triazine group. The composition can be an extruded film. A method of making such an extruded film is also disclosed. | 11-26-2015 |
| 20150353662 | COPOLYMERS INCLUDING ULTRAVIOLET ABSORBING GROUPS AND FLUOROPOLYMER COMPOSITIONS INCLUDING THEM - A thermoplastic copolymer that includes a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit that is fluorinated. A fluoropolymer composition including the thermoplastic copolymer is also disclosed. | 12-10-2015 |
| 20160002857 | WATER- AND OIL-REPELLENT AGENT - A water- and oil-repellent agent is produced by blending a fluorine-containing polymer and a fluorine-free polymer, wherein the fluorine-free polymer is 30-70% by weight of the total of the water- and oil-repellent agent, the fluorine-containing polymer is polymerized by a fluorine-containing monomer, a non-fluorinated branched monomer, a non-fluorinated crosslinking monomer, and an olefin monomer, and wherein the fluorine-containing monomer, the non-fluorinated branched monomer, the non-fluorinated crosslinking monomer, and the olefin monomer are 45-80%, 1-30%, 1-10%, and 10-50% by weight of the total of the fluorine-containing polymer respectively and the fluorine-free polymer is polymerized by a non-fluorinated non-crosslinking monomer, a non-fluorinated crosslinking monomer, and an olefin monomer, wherein the non-fluorinated non-crosslinking monomer, the non-fluorinated crosslinking monomer, and the olefin monomer are 45-80%, 1-30%, and 10-50% by weight of the total of the fluorine-free polymer respectively whereby, the agent reduces adhesion on a roller, and reduces environmental impact due to reduced fluorine usage. | 01-07-2016 |
| 20160137828 | Fluorine-Containing Elastomer Compositions Suitable for High Temperature Applications - A curable fluorine-containing elastomer composition is described which includes a first curable perfluoropolymer comprising tetrafluoroethylene, a first perfluoroalkylvinyl ether and at least two cure site monomers, each having at least one cure site, wherein tetrafluoroethylene is present in the first curable perfluoropolymer in an amount of at least about 50 mole percent; a second curable perfluoropolymer comprising tetrafluoroethylene, a second perfluoroalkylvinyl ether and at least one second cure site monomer having at least one cure site, wherein the second curable perfluoropolymer comprises fluoroplastic particles therein; and at least two curatives. Cured compositions and molded articles formed from such compositions are also disclosed. | 05-19-2016 |
| 20160177079 | FLUORINE-CONTAINING THERMOPLASTIC ELASTOMER COMPOSITION | 06-23-2016 |
