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Matches 551 - 600 out of 8,585

Document Document Title
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...  
WO/2003/068826A1
The present invention relates to a method for suppressing the formation of build-up during the polymerization processes of monomer vinyl chloride, alone or in mixture with other copolymerizable vinyl monomers, which processes are effecte...  
WO2001096946A3
Blocked photographically useful groups decompose thermally via a Lossen rearrangement reaction, including, for example, compounds represented by the following structure: F. In the above structure, the substituents are as defined in the a...  
WO/2003/054039A1
The invention pertains to a process to polymerize one or more monomers wherein one or more initiators and optionally one or more surfactants are added to a polymerization mixture when the pressure in the polymerization reactor is droppin...  
WO/2003/054040A1
The invention pertains to a process wherein initiators having a half-life from 0.0001 hour to 0.05 hour at the polymerization temperature are dosed to a polymerization mixture. The dosing of such initiator allows improved control of the ...  
WO/2003/042252A1
A process for fluoropolymer production which attains high productivity in a relatively low−temperature low−pressure atmosphere, which reduces the cost of commercial−scale production equipment, to thereby overcome the problem. The p...  
WO/2003/042259A1
The invention provides a polyvinylidene fluoride improved in productivity and flow properties without impairing the characteristics inherent in the resin, e.g., heat resistance, weather resistance and chemical resistance, specifically, a...  
WO2003007453A3
This invention concerns a method for forming ionomers by treatment with ammonium carbonate of copolymers having a substantially fluorinated, but not perfluorinated, polyethylene backbone having pendant groups of fluoroalkoxy sulfonyl flu...  
WO2002072653A3
An aqueous dispersion of non-melt-processible fluoropolymer, process for making same and concentrated dispersion and powder obtained from the dispersion. The fluoropolymer particles of the dispersion have a standard specific gravity (SSG...  
WO/2003/025042A1
Disclosed herein is a composition comprising an aromatic diamine that is a solid at room temperature and a stabilizing quantity of a hindered amine light stabilizer and its use as a polyurethane curing agent.  
WO/2003/020638A1
The present invention relates to compositions comprising rigid-rod polymers and carbon nanotubes. The compositions comprise dispersed carbon nanotubes aligned with rigid-rod polymers. The alignment of the nanotubes and polymers can be li...  
WO/2003/018078A1
The present invention relates to curable elastomeric compositions based on synthetical or/and natural elastomers, that contains adequate amounts of polymeric hydrogels from the class of polyacrylamides and to technical articles and stapl...  
WO/2003/007453A2
This invention concerns a method for forming ionomers by treatment with ammonium carbonate of copolymers having a substantially fluorinated, but not perfluorinated, polyethylene backbone having pendant groups of fluoroalkoxy sulfonyl flu...  
WO/2003/006557A1
The invention relates to a thermoplastic fluorescent pigment obtained by the condensation of a diisocyanate prepolymer and an aliphatic diamine, a cycloaliphatic diamine or a mixture of a diamine and a polyol in the presence of a fluores...  
WO/2003/002622A1
The present invention provides imide salts as emulsifiers for the polymerization of fluoroolefins.  
WO/2003/002621A1
A living polymerization process for preparation of poly(vinyl chloride) (PVC) with controlled molecular weight and molecular weight distribution is described. The polymerization reaction can be initiated by various polyhalocarbon initiat...  
WO2002088206A3
Emulsifier free fluoropolymer manufacturing method in which (a) a mixture of an oxidizing agent and reducing agent is used to start the polymerization and where one or the other but not both, are further added during polymerization, or (...  
WO/2002/102860A1
Process for preparation of polyvinyl chloride (PVC) comprising the steps of mass: polymerizing vinyl chloride monomer in the presence of an oil soluble emulsifier and at least one initiator in a first reactor having an agitator stirring ...  
WO2002077046A3
The present invention provides a method of making a fluoropolymer through emulsion polymerization of one or more fluorinated monomers in an aqueous phase in the presence of a fluorinated surfactant. At least part of the fluorinated surfa...  
WO/2002/088206A2
Emulsifier free fluoropolymer manufacturing method in which (a) a mixture of an oxidizing agent and reducing agent is used to start the polymerization and where one or the other but not both, are further added during polymerization, or (...  
WO/2002/088207A1
Emulsifier free fluoropolymer manufacturing method in which (a) a chain transfer agent, or a mixture of chain transfer agents are used wherein the chain transfer agents do not yield more than 0.4 weight % relative to the monomer feed of ...  
WO/2002/088203A2
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/2002/088248A1
Curable fluoroelastomer compositions having improved compression set after curing are provided, as well as compositions that are of relatively high purity. These compositions include a hydrogen-containing fluoroelastomer having interpoly...  
WO/2002/083744A1
A process for producing a tetrafluoroethylene polymer which comprises polymerizing tetrafluoroethylene in an aqueous medium in the presence of a water-soluble polymerization initiator, wherein the water used in the polymerization has bee...  
WO/2002/083756A1
A composition of (a) a fluoropolymer having interpolymerized units derived from a nitrogen-containing cure site monomer; and (b) a nonfluorinated catalyst composition that includes a compound having the general formula: {RA}?(-)¿{QR'¿k...  
WO/2002/079280A1
Fluororesin particles which have a melting point of 230 to 300°C, cannot be melt-proceeded, and have an average particle diameter of 100 nm or smaller and a melt flow rate, as measured in accordance with ASTM D3307 at 327°C under a loa...  
WO/2002/079279A1
The invention concerns a method for polymerisation in aqueous suspension of vinyl chloride alone or mixed with another vinyl monomer, wherein the initiator comprises at least a compound selected among dialkyl peroxydicarbonates, peroxy-t...  
WO/2002/079324A1
A vinyl chloride-based paste sol composition which is sufficiently thixotropic without the need of containing a large amount of a thixotropic agent or solvent, which poses problems concerning productivity, cost, product quality, burden t...  

Matches 551 - 600 out of 8,585