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Patent Searching and Data


Matches 501 - 550 out of 8,528

Document Document Title
WO/2005/007709A1
Disclosed are a fluoropolymer aggregate which substantially contains no fluorine-containing surfactant and a method for producing such a fluoropolymer aggregate. The fluoropolymer aggregate which substantially contains no fluorine-contai...  
WO2004081103A3
Method for lowering the melt viscosity of an aromatic sulfone polymer composition consisting of at least one aromatic sulfone polymer and, optionally, one or more other ingredients [composition (I)], which comprises using an additive con...  
WO/2005/003075A1
[PROBLEMS] This invention provides a novel compound which can be preferably used as a surfactant, and a method for producing a fluorine-containing polymer, a surfactant and an aqueous dispersion of a fluorine-containing polymer using the...  
WO/2005/003083A1
A monomer having the structure (I) wherein RF is linear or branched perfluoroalkene group, optionally containing oxygen or chlorine; and n is 1 or 2. These monomers are used in the preparation of homopolymers and copolymers that are usef...  
WO/2004/104092A1
Compositions containing fluoroelastomers, curative and a fluorinated polyether of the general formula -[CF2CFH-O-RfCF2CH2O]n-, wherein n is such that the weight average molecular weight, Mw, is between 2000 and 100,000 and Rf is selected...  
WO/2004/104056A1
The present invention relates to the process of extruding melt drawing fluoropolymer onto conductor to form insulated conductor at a line speed of at least 533 m/min and having no more than 10 sparks and no more than 2 lumps/13.7 km of i...  
WO/2004/096871A1
The invention pertains to a process to polymerize one or more monomers wherein at most 90%w/w of a safely useable amount of a first initiator is used and a second initiator is dosed at least after the start of the polymerization, in an a...  
WO/2004/094479A1
A low-friction fluorine rubber crosslinked body can be obtained by subjecting a fluorine rubber composition to a heat treatment under specific conditions. The fluorine rubber composition contains a fluorine rubber that is crosslinkable b...  
WO2004078814A3  
WO2004050727A8
A process for producing low molecular weight, granular polytetrafluoroethylene or modified polytetrafluoroethylene by suspension polymerization of pressurized tetrafluoroethylene in an agitated reaction vessel. The polymerization is cond...  
WO/2004/086419A1
A method for forming a ferroelectric thin film comprised of a vinylidene fluoride homopolymer, which comprises (i) a step of subjecting vinylidene fluoride to a radical polymerization in the presence of a radical polymerization initiator...  
WO/2004/085498A1
A method of forming a thin film of a vinylidene fluoride homopolymer having an I-form crystal structure, the method being usable for forming the film on various substrates in a relatively easy manner (coating conditions, procedure, etc.)...  
WO/2004/085492A1
A process for producing a fluorocopolymer by emulsion polymerization in the presence of a pH regulator, wherein the pH regulator is an ammonia water; and a molded article obtained by melting and molding this copolymer or by molding the c...  
WO/2004/081103A2
Method for lowering the melt viscosity of an aromatic sulfone polymer composition consisting of at least one aromatic sulfone polymer and, optionally, one or more other ingredients [composition (I)], which comprises using an additive con...  
WO/2004/081109A1
A porous membrane of vinylidene fluoride resin having fine pores of appropriate dimension and distribution, excelling in mechanical strength represented by tensile strength and elongation at break and being useful as a precision filter m...  
WO/2004/078814A2
Fluorinated polymers having ferroelectric properties are described herein that include: a) at least one fluorine-based monomer precursor, at least one fluorine-based polymer or a combination thereof; and b) at least one adhesion promoter...  
WO/2004/076539A1
The invention provides granulated powder of low-molecular polytetrafluoroethylene which is reduced in the scattering of powder and the adhesion thereof to a hopper; low-molecular polytetrafluoroethylene powder obtained by suspension poly...  
WO/2004/067588A1
The use of perfluorinated polymers and/or fluorinated ionomers as surfactant emulsifiers in emulsion polymerization of fluorinated monomers.  
WO2004033604A3
The present invention relates to the application of lubricant to fluoropolymer yarn which enables the yarn to be drawn at a high draw ratio and is removable by scouring, the lubricant being thermally stable at a temperature of at least 1...  
WO/2004/063235A1
The invention provides a novel process for producing fluoropolymers, specifically, a process for producing photoresist fluoropolymers which are transparent to vacuum ultraviolet rays, particularly, F2 laser (157nm), and excellent in solu...  
WO/2004/058833A1
Disclosed is a fluoropolymer which enables to form a fluorine-containing formed body and a laminate which are excellent in formability, productivity, interlayer adhesiveness, and stress crack resistance, especially the stress crack resis...  
WO/2004/050719A1
The invention provides a method for purification of aqueous fluoropolymer emulsions by which aqueous fluoropolymer emulsions can be rid of fluorine-containing surfactants without deterioration in the dispersion properties of the emulsion...  
WO/2004/050727A1
A process for producing low molecular weight, granular polytetrafluoroethylene or modified polytetrafluoroethylene by suspension polymerization of pressurized tetrafluoroethylene in an agitated reaction vessel. The polymerization is cond...  
WO/2004/046206A1
The present invention discloses a process for making a fluoropolymer having nitrile endgroups. The process comprises a free radical polymerization of one or more fluorinated monomers in the presence of a nitrile group containing salt or ...  
WO/2004/042475A1
A resist composition, characterized in that it comprises (A) a fluorine-containing polymer having an acidic group being blocked with a blocking group having a cycloalkyl group, an organic group having one or more of cycloalkyl groups, a ...  
WO2002088203A3
The present invention provides a method of making a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated monomers. The method comprises an aqueous emulsion polymerization of gaseous fluorinated monomers i...  
WO/2004/033580A1
A first sealing material for a semiconductor device which comprises a fluororubber as the rubber component thereof, wherein the fluororubber comprises a vulcanizate of a fluorine-containing elastomeric copolymer having a specific composi...  
WO/2004/033604A2
The present invention relates to the application of lubricant to fluoropolymer yarn which enables the yarn to be drawn at a high draw ratio and is removable by scouring, the lubricant being thermally stable at a temperature of at least 1...  
WO2003097588A3
Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2=C(R)CF2OSO2F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may conta...  
WO/2004/024786A1
The present invention is based on quad-fluoropolymer suitable for the preparation of a fluoroelastomer. The fluoropolymer comprises repeating units derived from 10 to 40 mol% of tetrafluoroethylene, 40 to 65 mol% of vinylidene fluoride, ...  
WO/2004/020513A1
Compositions comprising a fluoropolymer derived from a nitrogen-containing cure site monomer, a catalyst composition which comprises at least one anionic functional group and at least one cationic functional group having the formula QR'k...  
WO/2004/020476A1
The invention provides a process for the production of a fluoropolymer having a high molecular weight and a narrow molecular weight distribution. A process for the production of a fluoropolymer by continuous polymerization of a radical-p...  
WO2002055567A8
The invention concerns a method for continuous preparation of halogenated polymers comprising free radical polymerisation of halogenated monomers in a medium comprising liquid or supercritical carbon dioxide, in at least two pressurised ...  
WO/2004/011508A1
Aqueous microemulsions obtained from a perfluorinated alkane sulphonic or carboxylic acid or salt thereof, a liquid fluorinated monomer comprising a cure-site and optionally an inert liquid and highly fluorinated hydrocarbon compound. Th...  
WO/2004/009647A1
A process for producing a fluoropolymer reduced in the content of branches and in weight change at high temperatures. It is a novel process substantially free from compositional distribution. It is a batch copolymerization process conduc...  
WO/2004/000734A1
Fluorine-containing emulsifiers can be recovered from aqueous liquors containing fluorine-containing emulsifiers in concentrations of as low as 1 ppm by mass to 1 % by mass (for example, wastewaters from the step of flocculation of fluor...  
WO/2004/000896A1
A fluoropolymer having a reduced amount of polar end groups. The fluoropolymer is produced by free radical polymerization of fluorinated monomers and the initiation of the polymerization is carried out in the presence of a chloride salt....  
WO/2003/097704A1
The invention concerns a radical polymerization method for preparing halogenated polymers, using one or more ethylenically unsaturated monomers whereof at least one is selected among halogenated monomers, molecular iodine and one or more...  
WO/2003/097588A2
Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2=C(R)CF2OSO2F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may conta...  
WO/2003/095500A1
The invention relates to highly concentrated aqueous emulsions of peroxides comprising an anti-freeze agent, a polyvinyl acetate with a degree of hydrolysis between 45 and 80%, and optionally a non-ionic surfactant with an HLB value grea...  
WO2002060968A8
A method of making a curable fluoroelastomer is disclosed. The method comprises the steps of preemulsifying at least one perfluorovinylether in water, and copolymerizing the preemulsified perfluorovinylether with a gaseous fluorinated mo...  
WO/2003/093330A1
The present invention relates to a process and composition for the chain stopping of vinyl chloride polymerization or copolymerization in the presence of a stable free nitroxyl radical and a phenolic antioxidant. A further subject of the...  
WO/2003/091318A1
Fluoropolymer particles are subjected to high energy treatment so as to change the chemical functionality of the particle surfaces and thereby change the surface characteristics of the particles. These characteristics improve the usefuln...  
WO/2003/087168A1
The invention pertains to a process wherein initiators and protective colloids are both metered to a polymerization mixture. This manner of metering allows for improved control of the polymerization rate and an improved reactor space-tim...  
WO/2003/085003A1
There is described a method for applying an aqueous solution to the internal walls of a reactor, before the start of the polymerization reaction of vinyl chloride and/or vinyl acetate, which aqueous solution contains a salt of an anti-sc...  
WO2002055567A3
The invention concerns a method for continuous preparation of halogenated polymers comprising free radical polymerisation of halogenated monomers in a medium comprising liquid or supercritical carbon dioxide, in at least two pressurised ...  
WO/2003/078481A1
The present invention provides melt-processible poly(tetrafluoroethylene) polymers having a peak melting temperature above 315 °C and good mechanical properties at room temperature and at elevated temperatures, for instance a strain at ...  
WO/2003/078475A1
The present invention includes elastomeric compositions of BIMS elastomers suitable for abrasion resistant, high traction and/or barrier articles. The compositions and articles made from those compositions of the inventions can be descri...  
WO/2003/078479A1
A nonionic surfactant having an average molecular weight of 450 to 800 and an inorganic/organic ratio of 1.07 to 1.50 is added to an aqueous polytetrafluoroethylene emulsion having a PTFE content of 10 to 50 wt.% obtained by polymerizing...  
WO/2003/074573A1
The invention relates to a process to make and use specific diacyl peroxides in polymerization reactions. The peroxides are produced and used in a polymerization process within a short timeframe in order to overcome stability issues asso...  

Matches 501 - 550 out of 8,528