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WO/2000/032659A1 |
The invention concerns a method for preparing halogenated copolymers by copolymerising at least two monomers, whereby the copolymerisation consists in an aqueous dispersion with a delayed injection of a fraction of at least one of the mo...
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WO/2000/032660A1 |
The invention concerns a method for preparing halogenated copolymers by copolymerising at least two monomers, whereby copolymerisation is carried out in an aqueous dispersion, on the intervention of a primer whereof a fraction is introdu...
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WO/2000/031156A1 |
A method of preparing vinyl chloride resin is provided. In the method, a first vinyl chloride monomer is mixed with a first initiator to prepare a seed polymer particle and a second vinyl chloride monomer and a second initiator are added...
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WO/2000/031009A1 |
The invention concerns functional trifluorovinyl monomers and their copolymerisation with fluorinated olefins and the use of said trifluorovinyl monomers for forming fluorinated elastomers. The invention also concerns the copolymers resu...
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WO/2000/024709A2 |
Disclosed fluoro-olefins bearing an ionic functionality or a precursor thereto, a process for the production thereof, and polymers, especially ionomers, formed therefrom, and their application for electrochemical uses.
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WO/2000/022002A1 |
At least one fluoromonomer which is gaseous at ordinary temperature and pressure is stably and efficiently emulsion-polymerized in an emulsion obtained by forcibly emulsifying a water-insoluble liquid with high shearing in the presence o...
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WO/2000/018832A1 |
The present invention relates to fluororubber mixtures containing at least one fluororubber having exclusively hydrogen, alkyl and/or alkoxy groups in addition to vinylic end groups. The invention also relates to the use of said mixtures...
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WO/2000/017712A1 |
Photoresists and associated processes for microlithography in the extreme, far, and near UV are disclosed. The photoresists in some embodiments comprise (a) a fluorine-containing copolymer comprising a repeat unit derived from at least o...
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WO/2000/012574A1 |
A fluorocarbon polymer which includes: repeating units derived from one or more perfluorinated ethers of the formula CF¿2?=CFO-(CF¿2?)¿m?-(O(CF¿2?)¿p?)¿n?-OR¿f??1¿ wherein R¿f??1¿ is a perfluorinated (C¿1?-C¿4?) alkyl group, ...
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WO/2000/011050A1 |
Copolymers having copolymerized units of vinylidene fluoride, perfluoro(alkyl vinyl) ether, 2-hydropentafluoropropene, and, optionally, tetrafluoroethylene, exhibit excellent low temperature properties and processability when cured with ...
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WO/2000/008071A2 |
This invention relates to compositions of melt-processible poly(tetrafluoroethylene) (PTFE) and methods for making the same. More particularly, the present invention relates to a particular range of poly(tetrafluoroethylene) polymer whic...
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WO/2000/008076A1 |
The present invention relates to vulcanisation agents containing copolymers of tetrafluoroethylene and perfluoroalkylvinylic ethers which can be used as sealing materials in a high-temperature aggressive environment. The copolymers of th...
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WO/2000/005272A1 |
Aqueous dispersions of copolymers formed by the polymerisation of a monomer mixture comprising 0.05 % to less than 4.5 % by weight of certain terminally unsaturated oligomers are useful for improving the scrub resistance, corrosion resis...
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WO/2000/005276A1 |
The invention relates to a process for the preparation of aqueous dispersions of latex particles having a heterogeneous morphology by a semicontinuous emulsion polymerization, comprising the emulsion polymerizing of ethylenically unsatur...
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WO/2000/002935A1 |
A process for producing a fine powder of a modified polytetrafluoroethylene through tetrafluoroethylene polymerization in an aqueous medium in the presence of a water-soluble fluorochemical dispersant, which comprises introducing a fluor...
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WO/1999/065954A1 |
A molding material comprising a fluorocopolymer and having a metal elution index $g(h), which is the total number of nanograms of Na, Mg, Cu, Cr, Ni, K, Ca, and Fe metals per gram of the molding material determined by elution analysis wi...
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WO/1999/062969A1 |
An improved process for making allylic/ethylenic copolymers is disclosed. Increasing the reaction temperature during addition of the ethylenic monomer/initiator mixture results in a substantial increase in the polymer yield obtained comp...
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WO/1999/060039A1 |
Curable perfluoroelastomer compositions comprising A) a perfluoroelastomer having copolymerized units of tetrafluoroethylene, a perfluoro(vinyl ether), and a nitrile-containing cure site monomer, B) anhydrous silica, and C) a curing agen...
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WO/1999/057208A1 |
A thermosetting powder coating composition comprising a fluorocopolymer having cross-linkable functional groups and a hardener, characterized in that the fluorocopolymer contains perfluoroolefin units, has a fluorine content of 10 wt.% o...
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WO/1999/057165A1 |
A functional fluorocopolymer which comprises functional vinyl ether units derived from a hydrocarbon and tetrafluoroethylene units, has a fluorine content of 10 wt.% or higher, and is substantially insoluble in tetrahydrofuran. The fluor...
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WO/1999/056337A1 |
A solid electrolytic secondary battery comprising a positive electrode, a negative electrode and a solid electrolyte interposed between the electrodes, wherein the solid electrolyte contains, as a matrix polymer, a block copolymer of vin...
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WO/1999/050321A1 |
A fluorocopolymer characterized by being obtained from tetrafluoroethylene, vinyl fluoride or vinyl chloride, and other polymerizable compound(s); and a vulcanizable composition which comprises the fluorocopolymer, a vulcanizing agent, a...
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WO/1999/048939A1 |
A perfluoroelastomer compound having improved processability comprising a perfluoroolefin, a perfluorovinyl ether and a halogen-containing cure site, where the polymer contains substantially no ionizable moieties; and processes for makin...
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WO/1999/048952A1 |
A method which comprises adhering to a substrate surface an ETFE powder having a viscosity $g(c) of 1X10?4¿ Pa.sec or lower, a retarded elasticity $g(e) of 5X10?-4¿ Pa?-1¿ or lower, an average particle diameter of 5 to 1,000 $g(m), an...
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WO/1999/045048A1 |
This invention deals with substantially fluorinated but not perfluorinated ionomers, and related ionic and nonionic monomers, having pendant groups containing fluorosulfonyl methide or fluorosulfonyl imide derivatives and univalent metal...
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WO/1999/041313A1 |
A low-molecular-weight copolymer of tetrafluoroethylene with units of perfluoro alkyl vinyl ethers having a melt index of $m(G) 30 suitable as a mixing component with a higher-molecular-weight copolymer of the same monomers for producing...
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WO/1999/041292A1 |
This invention concerns substantially fluorinated, but not perfluorinated, ionomers consisting of a polyethylene backbone having pendant groups of fluoroalkoxy sulfonic acids and metal salts thereof. Such ionomers are useful for electroc...
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WO/1999/038842A1 |
The invention concerns novel ion-exchanging membranes, the method for preparing them and their uses. The membranes are made up of a polymer obtained from a monomer or a bifunctional mixture of monomers of general formula [T-SO¿2?-Y-SO¿...
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WO/1999/033891A1 |
A heat-resistant material for office automation equipment and a coating material, which are usable particularly suitably for the facing of a fixing roller or belt and which comprise a multisegment fluoropolymer not only exhibiting flexib...
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WO/1999/032523A1 |
The invention concerns a method for preparing an aqueous dispersion of vinyl polymers halogenated by polymerisation, whereby after polymerisation, a basic agent is added in an amount such that the pH of the aqueous dispersion is approxim...
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WO/1999/026938A1 |
A compound having formula (I) wherein R is fluorine, hydrogen, an unsubstituted or substituted aliphatic or unsubstituted or substituted aromatic radical; R¿1? is an unsubstituted or substituted aliphatic radical, or unsubstituted or su...
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WO/1999/025425A2 |
This invention provides a golf ball constituting or having a core, intermediate layer and/or cover or consisting in whole or in part of a fluoropolymer. The fluoropolymer may be a perfluoropolymer that is sulfonated or carboxylated or a ...
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WO/1999/009078A1 |
Selected partially fluorinated olefins containing terminal unfluorinated vinyl groups, and optionally containing other functional groups, may be copolymerized with other olefins such as ethylene and/or propylene using metallocene or Zieg...
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WO/1999/005191A1 |
A solid polymer electrolyte having improved ionic conductivity, improved adhesion to a collector base, and greatly improved heat resistance is formed from a crosslinked vinylidene fluoride copolymer comprising 50 to 97 mol % of vinyliden...
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WO/1999/005179A1 |
A process for producing a fluoropolymer comprising units derived from a fluoroolefin as the main structural units, wherein a hydrofluoroalkyl ether is used as a polymerization medium.
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WO/1999/005126A1 |
The invention concerns ionic compounds wherein the negative charge is highly delocalized. The compounds contain at least a perfluorovinyl group and at least a group selected among -O or one of the groups -NC$m(Z)N, -(C$m(Z)N)¿2?, -NSO¿...
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WO/1998/058973A1 |
A tetrafluoroethylene copolymer comprising 30 to 81 % by mole of tetrafluorethylene and 70 to 19 % by mole of at least one other monomer, wherein the polymer chain is terminated with a carbonate group and which has a melt flow rate (200 ...
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WO/1998/052983A1 |
An antifouling polymer which has (i) at least one reactive group selected from the group consisting of carboxyl and salts thereof and hydroxy, epoxy, phosphate, alkoxysilane, imine, sulfo, amino, isocyanate, and blocked isocyanate groups...
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WO/1998/051495A1 |
A sliding composite material produced by applying to a substrate a material comprising a fluorinated ethylenic copolymer prepared by copolymerizing (a) 0.05 to 30 mole % of at least one fluorinated ethylenic monomer having at least one f...
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WO/1998/050229A1 |
An adhesive composite material for office automation machines which is excellent in heat resistance, adhesiveness, stainproofness, water- and oil-repellency, stain removing properties, chemical resistance, rustproofness, antimicrobial pr...
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WO/1998/049737A1 |
A binder solution for providing an electrode suitable for use in a non-aqueous electrolytic solution is formed by dissolving a vinylidene fluoride polymer having an abnormal linkage content of below 4 %, which is lower than a conventiona...
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WO/1998/049009A1 |
An ultrasonic processing method is disclosed wherein during the processing time interval the motional amplitude and engaging force of the resonating horn (20) and thereby the power and engaging pressure to the workpiece (24) is varied to...
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WO/1998/046426A1 |
A chemical-resistant composite material prepared by applying to a base material a fluoropolymer excellent in the adhesion thereto without necessitating complicated steps. This material is prepared by applying to a base material a fluoroe...
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WO/1998/046658A1 |
Interpolymers of 1-99 mol% vinyl fluoride and 99-1 mol% of at l east one highly fluorinated monomer such as tetrafluoroethylene are disclosed. The interpolymers are characterized by the presence of ionic end groups and are prepared by po...
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WO/1998/046657A1 |
An interpolymer consisting 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 at...
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WO/1998/041568A1 |
A granular powder of a modified PTFE, which has a high apparent density, a small average particle diameter, a narrow particle size distribution, a charge amount of substantially zero, and a small angle of repose and is excellent in powde...
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WO/1998/038897A1 |
Composite materials for cookware which can be produced without any complicated step by coating a substrate with a material comprising a fluorinated polymer excellent in the adhesion to the substrate and which are excellent in heat resist...
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WO/1998/038687A1 |
New and novel copolymers of vinylidene fluoride and hexafluoropropylene containing up to about 24 % by weight hexafluoropropylene having improved solution clarity and fluidity, longer gel times and lower extractables than prior art vinyl...
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WO/1998/038242A1 |
New and novel copolymers of vinylidene fluoride and hexafluoropropylene containing up to about 24 % by weight hexafluoropropylene having improved solution clarity and fluidity, longer gel times and lower extractables than prior art vinyl...
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WO/1998/030739A1 |
A flash-spun material comprised of at least 90 % by weight of polymers selected from the groups A, B, and C; wherein group A comprises polymers with a melting point above 280 �C that are comprised of halocarbon polymers in which at lea...
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