Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 351 - 400 out of 8,521

Document Document Title
WO/2009/014167A1
Disclosed is a compound which is useful for production of a fluoropolymer and can be easily removed from the produced fluoropolymer. Also disclosed are a method for producing such a compound and a method for producing a fluoropolymer usi...  
WO/2009/002617A1
A process of removing fluorinated compounds from an aqueous phase originating from the preparation of fluoropolymers said process comprising the use of polycationic polymers.  
WO/2009/002898A2
A method is disclosed for producing polyvinyl chloride which includes mixing a vinyl chloride solution with an initiator solution in at least one high shear mixing device comprising at least one rotor/stator set producing a rotor tip spe...  
WO/2009/001894A1
Disclosed is an aqueous polytetrafluoroethylene [PTFE] dispersion solution which does not contain perfluorooctanoic acid ammonium [PFOA] or a salt thereof and enables to produce a fine powder suitable for paste extrusion molding. Also di...  
WO/2008/149720A1
A process for producing a fluororesin improved in solubility in solvents or (meth)acrylic monomers. It comprises adding (a) a fluoroolefin, (b) malonic acid, a malonic monoester, or a malonic diester, and (c) a water-soluble free-radical...  
WO/2008/143069A1
Disclosed is a method for producing a perfluoropolymer having a reduced amount of an unstable terminal group with a high degree of efficiency. Specifically disclosed is a method for producing a fluorine-treated perfluoropolymer, which co...  
WO/2008/140914A1
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...  
WO/2007/121165A3
A copolymer useful as a demulsifier or water clarifier may be prepared by polymerizing at least one aromatic monomer having one or more polymerizable double bonds; at least one oleophilic monomer having one or more polymerizable double b...  
WO/2008/134138A1
A process of reducing the amount of fluorinated emulsifiers in fluoropolymer dispersions by contacting the fluoropolymer dispersion with an anion exchange resin in the presence of a pH-dependent surfactant, and fluoropolymer dispersions ...  
WO/2008/126716A1
Disclosed is a dispersion stabilizer for suspension polymerization of a vinyl monomer, which is composed of a modified polyvinyl alcohol resin containing 0.1-20% by mole of a structural unit which has chlorine in a side chain. (The modif...  
WO/2008/094698A1
The subject invention pertains to methods for processing polytetrafluoroethylene (PTFE) resin into highly desirable product forms that fill the needs of the fluoropolymer industry. The subject invention concerns methods for making a mult...  
WO/2008/033336A3
A process for the preparation of an allyloxytrifluoropropene derivative of the formula CF3CH=CR1(OCH2CR=CH2) wherein R1 is hydrogen, fluoro, or an allyloxy group represented by the formula - OCH2CR=CH2 wherein R is hydrogen or methyl inc...  
WO/2008/069301A1
The invention provides a technique by which unreacted fluoromonomers can be efficiently separated and recovered without using an extraction solvent from aqueous fluoropolymer dispersions prepared by emulsion polymerization and which litt...  
WO/2008/064877A1
Production method of polyvinyl chloride in an agitated reactor under pressure, by means of polymerization of vinyl monomers in aqueous suspension, of the type in which at least vinyl monomer in aqueous solution is introduced into a react...  
WO/2008/062653A1
Disclosed is a method for producing an aqueous fluorine-containing polymer dispersion having a reduced fluorine-containing emulsifier content, wherein a fluorine-containing emulsifier is effectively adsorbed and removed from the aqueous ...  
WO/2008/062526A1
Chlorinated vinyl chloride resins which are reduced in unstable-structure content and have excellent thermal stability; and a molded object of the resins. One of the chlorinated vinyl chloride resins is characterized in that the resin ha...  
WO/2008/063905A1
Provided is a curable fluoropolymer composition comprising a fluoropolymer comprising interpolymerized units of tetrafluoroethylene, perfluoro(aliphatic vinyl) ether, and a nitrogen-containing cure site monomer; a catalyst to form cross-...  
WO/2008/060462A1
A process for polymerizing at least one fluorinated monomer in an aqueous polymerization medium in the presence of initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer having a fluoropolymers sol...  
WO/2008/060463A1
A process for polymerizing at least one fluorinated monomer in an aqueous medium in the presence of initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer having a fluoropolymers solids content of ...  
WO/2008/060461A1
A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluor...  
WO/2008/060460A1
A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising fluoro...  
WO/2008/011208A3
An exfoliated fluoropolymer/clay nanocomposite characterized by a featureless X-ray diffraction pattern is detailed including a reaction product of a clay and a chain-end functionalized fluoropolymer. The chain-end functionalized fluorop...  
WO/2008/046816A1
The invention pertains to a process for stabilizing a semi-crystalline fluoropolymer comprising ion exchange groups, said process comprising: suspending at least one semi-crystalline fluoropolymer having ion exchange groups [polymer (I)]...  
WO/2008/033336A2
A process for the preparation of an allyloxytrifluoropropene derivative of the formula CF3CH=CR1(OCH2CR=CH2) wherein R1 is hydrogen, fluoro, or an allyloxy group represented by the formula - OCH2CR=CH2 wherein R is hydrogen or methyl inc...  
WO/2008/027679A1
A radiation-curable composition comprising a radiation-curable compound, a free acid and a halogenated polyolefin is disclosed. The compositions are useful in the repair of damaged motor vehicle body parts.  
WO/2008/026707A1
Disclosed is a perfluorocarboxylic acid salt having excellent surface tension reducing ability. Specifically disclosed is a perfluorocarboxylic acid salt represented by the formula (1) below and having an iron content of not more than 10...  
WO/2008/026393A1
A polyfluoroalkanecarboxylic acid represented by the general formula: CnF2n+1(CH2CF2)m(CF2CF2)l-1CF2COOM (M: an alkali metal, a NH4 group, H; n: 1 to 6; m: 1 to 4; l: 1 or 2) can be produced by the hydrolysis of a polyfluoroalkanecarboxy...  
WO/2008/023870A1
The present invention relates to a method of preparing a vinyl chloride polymer, and more precisely, a method of preparing a vinyl chloride polymer having excellent processability by raising a final polymerization temperature up to 5 ~ 2...  
WO/2008/024601A1
A process for producing fluoropolymers by solvent slurry polymerization of at least one fluorinated monomer in a reactor containing a hydrofluorocarbon (HFC) solvent and water. The amount of fluoropolymer solids produced in the polymeriz...  
WO/2008/024602A1
A process for producing fluoropolymers by polymerizing at least one fluorinated monomer in a polymerization medium comprising water and selected low-telogenic hydrofluoroethers (HFEs).  
WO/2007/082867A3
VDF-based curable fluoroelastomers, having a glass transition temperature lower than -49°C, preferably lower than -50°C, and having the following composition, as per cent by moles: A) from 25% to 50%, preferably from 30% to 45%, of the...  
WO/2008/019155A1
Methods of making fluoropolymers from at least one fluoromonomer in either (1) a heterogeneous medium comprising a carbon dioxide and an aqueous phase with or without hydrocarbon surfactants or dispersants or stabilizer, or (2) a homogen...  
WO/2007/143698A3
The invention provides medical devices that comprise an iodinated polymer and that can be viewed using X-Ray imaging techniques. The invention also provides novel iodinated polymers that can be incorporated into or coated on medical devi...  
WO/2008/014119A1
Compositions comprising a fluoropolymer having interpolymerized units derived from a nitrogen-containing cure site monomer and a cure catalyst derived from an amidine and an acid having a pKa value of about -1 to about 4 are provided. Al...  
WO/2008/003634A1
A (per)fluoroelastomeric composition curable by peroxidic way comprising: 100 phr as (per)fluoroelastomer; as filler, 0.5-50 phr of silica having a pH value, determined according to the DIN ISO 787-9 standard, higher than 7, preferably h...  
WO/2008/004660A1
Disclosed is a method for producing a good aqueous fluorine-containing polymer dispersion having a low fluorine-containing surfactant content, wherein the fluorine-containing surfactant is efficiently removed by adjusting the pH. Specifi...  
WO/2008/001895A1
Disclosed is a method for producing a fluorine-containing elastomer having excellent dispersion stability at high polymerization rate, at high yield and low cost. Specifically disclosed is a method for producing a fluorine-containing ela...  
WO/2008/000693A1
Process for the manufacture of 1,2-dichloroethane starting from a stream of ethane according to which: a) the stream of ethane is subjected to a catalytic oxydehydrogenation producing a gas mixture containing ethylene, unconverted ethane...  
WO/2008/001894A1
Disclosed is a method for producing a fluorine-containing polymer, which is excellent in productivity. Specifically disclosed is a method for producing a fluorine-containing polymer by radically polymerizing a fluorine-containing monomer...  
WO/2007/147870A1
Process for the manufacture of DCE starting with a hydrocarbon source according to which: a) the hydrocarbon source is subjected to a first cracking step, namely a pyrolysis step carried out in at least one cracking furnace, thus produci...  
WO/2007/147271A1
The invention relates to a high-frequency component (10) comprising a dielectric (12) which, during operation, is exposed to the high-frequency fields in the high-frequency component. The aim of the invention is to simplify the productio...  
WO/2007/146530A1
Antireflective films and low refractive index compositions are described. The low refractive index layer comprises the reaction product of a composition comprising at least one free-radically polymerizable material having a high fluorine...  
WO/2007/145416A1
The present invention provides a method of preparing vinyl chloride polymer having excellent processability and high bulk density by the separate stepwise additions of vinyl chloride monomer during suspension polymerization.  
WO/2007/145181A1
Disclosed is a curable composition which enables to obtain a fluorine-containing cured product which is excellent in transparency, light resistance, heat resistance and mechanical strength, and hardly damaged by stress concentration. Spe...  
WO/2007/142418A1
The present invention relates to a PVC product containing cyclodextrin derivative particles and capable of suppressing migration of a plasticizer and a method for manufacturing the same, which includes (Sl) preparing cyclodextrin derivat...  
WO/2007/103318A3
Provided is a composition comprising a fluorocarbon polymer, a radical initiator, and a first and second curing co-agent. In one aspect, the first curing co-agent is represented by the formula CH2=CH-Rf-CH=CH2, wherein Rf is selected fro...  
WO/2007/123123A1
Disclosed is a method for producing a fluorine rubber wherein coloration is prevented. Specifically disclosed is a method for producing a fluorine rubber, which is characterized by comprising a step for heating and drying a coagulated pr...  
WO/2007/119829A1
A TFE polymer capable of giving a stretch film excellent in homogeneity. It is a tetrafluoroethylene polymer which has stretchability, is processable in a nonmelted state, and has a normal specific gravity of 2.140-2.165. The tetrafluoro...  
WO/2007/120348A1
A method for polymerizing, in an aqueous medium, at least one fluorinated monomer in the presence of a non-copolymerizable, non-fluorinated surfactant. The surfactant is generally selected from a non-ionic surfactant, a primary anionic s...  
WO/2007/116031A1
The invention pertains to a polymerisation process for the manufacture of a fluoropolymer [polymer (F)], said process comprising polymerising at least one fluorinated monomer in a polymerization medium, wherein said polymerization medium...  

Matches 351 - 400 out of 8,521