Class / Patent application number | Description | Number of patent applications / Date published |
526247000 | Fluorine containing monomer is an ether | 39 |
20080207861 | Curable base-resistant fluoroelastomers - Compositions of fluoroelastomers containing copolymerized units of tetrafluoroethylene, propylene, a first cure site selected from the group consisting of i) trifluoroethylene, ii) 3,3,3-trifluoropropene-1, iii) 1,2,3,3,3-pentafluoropropylene, iv) 1,1,3,3,3-pentafluoropropylene, and v) 2,3,3,3-tetrafluoropropene, and a second cure site selected from the group consisting of i) copolymerized units of a brominated cure site monomer, ii) copolymerized units of an iodinated cure site monomer, iii) copolymerized units of a chlorinated cure site monomer, iv) brominated endgroups, v) iodinated endgroups and vi) a combination of any of i)-v) are readily curable with polyhydroxy curing systems. The resulting cured articles have a combination of excellent resistance to alkaline fluids, superior tensile properties and compression set resistance, and excellent adhesion to metal substrates. Optionally, the fluoroelastomers may be dual cured by both a polyhydroxy system and an organic peroxide system. | 08-28-2008 |
20080234454 | PERFLUOROCYCLOBUTANE COPOLYMERS - The present invention provides copolymer having repeating units based on polyoxyalkylene radicals, polysiloxane radicals and perfluorocyclobutane radicals. The copolymers are useful as biomedical devices such as contact lenses or intraocular lenses. | 09-25-2008 |
20080287627 | 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 perfluoropolymer having a cure site monomer and a second perfluoropolymer having a cure site monomer. The molar ratio of the tetrafluoroethylene monomer to perfluoroalkylvinyl ether in one perfluoropolymer is about 0 to 100 to about 65 to 35 in the perfluoropolymer. The molar ratio of the tetrafluoroethylene monomer to the perfluoroalkylvinyl ether monomer in the second polymer is about 65:35 to about 95:5 in the second perfluoropolymer. The composition further includes a curative. One fluorine-containing elastomer composition herein, having a short crosslinking time, has perfluoroelastomers (A) having a tetrafluoroethylene unit, a perfluoralkylvinyl ether unit (a) and a monomer unit (b) having at least one kind selected from the group consisting of a nitrile group, a carboxyl group and an alkoxycarbonyl group, wherein the composition has two or more kinds of perfluoroelastomers (A) having differing contents of perfluoroalkylvinyl ether unit (a). | 11-20-2008 |
20080306232 | FLUOROPOLYMER FOR CHROMATIC ABERRATION-FREE LENS AND CHROMATIC ABERRATION-FREE LENS - To provide a material having properties required for a chromatic aberration-free lens and excellent in moldability and impact resistance. | 12-11-2008 |
20090111960 | Dehydrofluorination and Surface Modification of Fluoropoymers for Drug Delivery Applications - Fluoropolymers having a —CF adjacent to a —CH which are subsequently dehydrofluorinated to create a —C═C— can be used as controlled release carriers for therapeutic agent(s) by covalently conjugating the therapeutic agent(s) to the fluoropolymer at the —C═C—. | 04-30-2009 |
20090124774 | FLUOROOLEFIN MONOMERS AND COPOLYMERS THEREOF - Disclosed herein are novel fluoroolefins of formula Rf-O—(CF | 05-14-2009 |
20090149616 | FLUORINATED SURFACTANTS - The present invention provides a fluorinated surfactant comprising fluorinated units and hydrophilic non-fluorinated units wherein said fluorinated surfactant can be obtained by | 06-11-2009 |
20090203865 | Fluorosulfates of Hexafluoroisobutylene and Its Higher Homologs and Their Derivatives - Hexafluoroisobutylene and its higher homologs are easily reacted with SO | 08-13-2009 |
20090270573 | Process for coagulating perfluoroelastomers - In a process for the manufacture of perfluoroelastomers, a weak organic acid, e.g. glacial acetic acid, is employed to coagulate an acidic perfluoroelastomer dispersion. | 10-29-2009 |
20090292093 | FLUORINATED COMPOUND AND FLUORINATED POLYMER - The present invention is to provide a novel fluorinated compound which can produce a fluorinated polymer which has high transparency, good heat resistance and adequate flexibility, and a fluorinated polymer containing repeating units based on the fluorinated compound. | 11-26-2009 |
20090326178 | Method for Producing Fluorinated Compounds and Polymers - A fluorinated polymer comprising a unit represented by the following formula (1), a method for producing fluorinated compounds and the fluorinated polymers, and an optical/electrical material or coating material comprising the fluorinated polymer. | 12-31-2009 |
20100004415 | Fluorine-Containing Elastomer and Composition Thereof - A fluorine-containing elastomer having a copolymer composition, which comprises (a) 50-85 mol. % of vinylidene fluoride, (b) 0-25 mol. % of tetrafluoroethylene, (c) 7-20 mol. % of perfluoro(methyl vinyl ether), (d) 2.5-15 mol. % of CF | 01-07-2010 |
20100036073 | Non-Melt-Flowable Perfluoropolymer Comprising Repeating Units Arising From Tetrafluoroethylene and a Monomer Having a Functional Group and a Polymerizable Carbon-Carbon Double Bond - Disclosed is a non-melt-flowable perfluoropolymer comprising repeating units arising from tetrafluoroethylene and a monomer having at least one functional group and a polymerizable carbon-carbon double bond. | 02-11-2010 |
20100048846 | WATER/OIL REPELLENT COMPOSITION, METHOD FOR PRODUCTION THEREOF, AND ARTICLE - To provide a water/oil repellent composition which can impart water/oil repellency to a surface of an article without having its texture deteriorated, and has excellent durability against washing and stability, a method for producing such a composition, and an article treated with such a water/oil repellent composition. | 02-25-2010 |
20100121012 | 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 articles containing these fluoropolymers are also provided. | 05-13-2010 |
20100273968 | Addition reaction to fluoroallylfluorosulfate - The invention pertains to a process for preparing compounds of formula (I-A) or (I-B) here below: by reaction of perfluoroallylfluorosulfate (FAFS) of formula (II): with at least one hypofluorite of formula (II-A) or (II-B): wherein: R | 10-28-2010 |
20110015358 | 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 CH | 01-20-2011 |
20110015359 | 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 CH | 01-20-2011 |
20110021728 | METHOD FOR PRODUCING POLYTETRAFLUOROETHYLENE FINE POWDER - To provide a method for producing a PTFE fine powder which can produce a PTFE fine powder having a low paste extrusion pressure property by a simple method. | 01-27-2011 |
20110118428 | FLUOROSURFACTANTS - The present invention relates to novel compounds containing CF | 05-19-2011 |
20110144293 | LATERAL ALPHA-SUBSTITUTED ACRYLATE COMPOUND AND POLYMER THEREOF - The invention relates to compounds represented by Formula (1): | 06-16-2011 |
20110201774 | FLUOROPOLYMER AND COMPOSITION THEREOF - The present invention provides a fluoropolymer capable of giving fluorine-containing molded materials and laminates excellent in moldability, productivity, interlaminar bonding and stress cracking resistance, in particular stress cracking resistance upon contacting with various liquid chemicals, without impairing such characteristics intrinsic in fluororesins as chemical resistance, solvent resistance, weathering resistance, antifouling properties, liquid chemical impermeability and nonstickiness. The present invention provides a fluoropolymer which is an oligomer-containing or oligomer-free fluoropolymer, wherein said oligomer has a molecular weight not higher than 10,000 and amounts to not more than 0.05% by mass relative to the fluoropolymer. | 08-18-2011 |
20110218311 | Melt-processible Poly(tetrafluoroethylene) - Melt-processible, thermoplastic poly(tetrafluoroethylene) (PTFE) compositions are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described. | 09-08-2011 |
20110319581 | POLYETHER-MODIFIED POLYSILOXANE CONTAINING A PERFLUOROPOLYETHER GROUP AND ITS PRODUCTION METHOD - A polyether-modified polysiloxane containing a perfluoropolyether group and its production method are provided. The polysiloxane has both the properties of a perfluoropolyether and the properties of a polyether-modified silicone, and it also has high affinity for organic solvents as well as coating compositions, cosmetics, and various coating materials. The polysiloxane is represented by the following general formula (1): | 12-29-2011 |
20120095177 | FLUORINATED POLY(ETHER)S END-CAPPED WITH POLYMERIZABLE CATIONIC HYDROPHILIC GROUPS - The present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices. More particularly, the present invention relates to certain cationic monomers capable of polymerization to form polymeric compositions having desirable physical characteristics useful in the manufacture of ophthalmic devices. The polymer compositions comprise polymerized fluorinated polyether monomer end-capped with ethylenically unsaturated cationic hydrophilic groups. | 04-19-2012 |
20120283404 | Polynorbornene Pervaporation Membrane Films, Preparation and Use Thereof - Embodiments in accordance with the present invention provide forming polynorbornenes useful for forming pervaporation membranes, the membranes themselves and methods of making such membranes. | 11-08-2012 |
20130005924 | FLUORINATED COMPOUND AND FLUORINATED POLYMER - To provide a fluorinated compound having an R | 01-03-2013 |
20130012674 | DIFUNCTIONAL OLIGOMERS OF PERFLUORO(METHYL VINYL ETHER) - Oligomers of perfluoro(methyl vinyl ether) with vinylidene fluoride or tetrafluoroethylene are disclosed that contain 40-90 mole percent copolymerized units of vinylidene fluoride or tetrafluoroethylene and 10-60 mole percent copolymerized units of perfluoro(methyl vinyl ether), said oligomers having two functional endgroups and having a number average molecular weight between 1000 and 25,000. | 01-10-2013 |
20140094580 | HARDCOATS COMPRISING PERFLUOROPOLYETHER POLYMERS WITH POLY(ALKYLENE OXIDE) REPEAT UNITS - Presently described are articles, such as optical displays and protective films, comprising a (e.g. light transmissive) substrate having a surface layer comprising the reaction product of a mixture comprising a non-fluorinated binder precursor (e.g. of a hardcoat composition) and at least one polymerizable perfluoropolyether polymer. The resulting cured surface layer can advantageously exhibit low lint attraction in combination with low surface energy. Also described are one-step and two-step methods of synthesizing perfluoropolyether polymers having polymerizable ethylenically unsaturated groups. | 04-03-2014 |
20140135463 | MELT-FABRICABLE PERFLUOROPOLYMERS 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. | 05-15-2014 |
20140323672 | PERFLOUORO-t-BUTOXY ALLYL AND PROPARGYL ETHERS - Perfluoro-t-butoxyallyl ether and perfluoro-t-butoxypropargyl ether and methods for their synthesis are disclosed. Also disclosed are methods for making polymers from the perfluoro-t-butoxyallyl ether and perfluoro-t-butoxypropargyl ether. | 10-30-2014 |
20150073111 | FLUOROELASTOMERS HAVING SECONDARY CYANO GROUP CURE SITES - This invention pertains to fluoroelastomers comprising copolymerized units of vinylidene fluoride, at least one other fluoroolefin and a cure site monomer having a secondary cyano group, as well as cured fluoroelastomer compositions made therefrom. It has been surprisingly discovered that fluoroelastomers that contain a cure site monomer having a secondary cyano group contain much less gel than do similar fluoroelastomers that employ a cure site monomer having a primary cyano group. Furthermore cured (i.e. crosslinked) fluoroelastomer compositions that contain a fluoroelastomer having secondary cyano groups have a better (i.e. lower) compression set than do similar cured fluoroelastomer compositions that contain a fluoroelastomer having primary cyano groups. | 03-12-2015 |
20150073112 | Hexafluoropropylene Oxide Polymer Compositions and a Preparing Method of Hexafluoropropylene Oxide Polymer Using Hexafluoropropylene Oligomer - The present invention relates to hexafluoropropylene oxide polymer composition and a process of preparing of hexafluoropropylene oxide polymer by an anionic polymerization, and in particular the hexafluoropropylene oxide polymer composition comprises an anionic initiator, a polar solvent, hexafluoropropylene and hexafluoropropylene oxide. The hexafluoropropylene oxide polymer is prepared under particular reaction conditions by using the composition, hexafluoropropylene oxide poylymer prepared by using the composition according to a preparation process herein has a weight average molecular weight (Mw) of 1,500-4,000 at −10-20° C. | 03-12-2015 |
20150299354 | FLUOROIODO COMPOUNDS FOR FLUOROPOLYMERS - Described herein is a composition comprising a partially fluorinated compound selected from the group consisting of: I(CF | 10-22-2015 |
20150322187 | SOLID COMPOSITE FLUOROPOLYMER LAYER - The present invention pertains to a process for manufacturing a solid composite layer, said process comprising the following steps: (i) providing a mixture comprising:—at least one functional fluoropolymer comprising at least one hydroxyl group [polymer (F)],—at least one metal compound of formula (I) [compound (M)]: X | 11-12-2015 |
20150361113 | SILICONE COMPOUND AND A USE THEREOF - One of the purposes of the present invention is to provide a compound which is a polymerizable monomer having a specific number of silicon atoms and a specific number of fluorine atoms, has a higher purity, is suitable as an ophthalmic monomer, is well compatible with another (meth)acryl monomer, and provides a polymer having excellent hydrophilicity, anti-staining property and durability of mechanical strength and to provide a method for preparing the compound. The present invention provides a compound represented by the following formula (1). | 12-17-2015 |
20150361114 | Silicone Compound and a Use Thereof - The purpose is to provide a silicone compound which is well compatible with polymerizable silicone monomers and other polymerizable monomers to provide a polymer having high oxygen permeability, excellent hydrophilicity and anti-staining property, excellent dimension stability, and enough durability of mechanical strength not to deteriorate in a phosphate buffer solution. The other purpose is to provide a silicone compound having a high blocked terminal ratio and a high ratio of one specific structure and a method for preparing the silicone compound. The invention provides a compound represented by the following formula (1). | 12-17-2015 |
20160041306 | COMPOUND CONTAINING CROSSLINKABLE MOIETIES, PREPOLYMER, BLEND AND POLYMER SHEET OBTAINED THEREFROM, AND WAVEGUIDE FOR OPTICAL INTERCONNECTION - An optical waveguide for optical interconnection including a polymer sheet comprising a crosslinked product of a prepolymer, the prepolymer prepared by condensation reaction between a first compound represented by the formula Ar—H, where Ar comprises (a) a crosslinkable moiety at one end, (b) a moiety selected from the group consisting of —O—, —S—, —COO—, —CO—, —COS—, —SO | 02-11-2016 |
20160137572 | FLUORINATED AROMATIC COMPOUND, METHOD FOR ITS PRODUCTION, CURABLE MATERIAL, ITS CURED PRODUCT, AND OPTICAL MEMBER - To provide a novel fluorinated aromatic compound having at least two carbon-carbon unsaturated bonds, a method for its production, a curable material comprising the fluorinated aromatic compound, a cured product thereof, and an optical member. The fluorinated aromatic compound is represented by formula (A), wherein n is an integer of 0 to 6, a is an integer of 0 to 5, b is an integer of 0 to 4, c is an integer of 0 to 4, a+c+n is 2 to 6, a+b is 2 to 9, Z is a single bond, —O—, —S—, —CO—, —C(CH | 05-19-2016 |