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Matches 701 - 750 out of 8,530

Document Document Title
WO/1996/039379A1
Sulfonyl fluoride substituted 'alpha','beta','beta'-trifluorostyrene monomers are disclosed. The monomers are incorporated into polymeric compositions which are conveniently hydrolyzed to produce polymeric compositions which include ion-...  
WO/1996/039446A1
Procedure for the polymerization of monomers in aqueous suspension and/or emulsion carried out in reactors inside of which an anti-scaling product is deposited, characterized in that, the said anti-scaling product comes from the cross-li...  
WO/1996/038488A1
A network polymer that contains: (a) a plurality of polymer chains which are derived from one or more ethylenically-unsaturated monomer(s); and (b) at least one linking group which links the polymer chains and which contains anhydride, c...  
WO/1996/034022A1
The invention relates to fluorotelomers, their synthesis by free radical-initiated telomerization of fluoroalkenes (e.g. TFE) in which hydrochlorofluorocarbons (HCFC's) are used both as telogens and as solvents, and dispersions of the fl...  
WO/1996/030417A1
The present invention provides a multi-phase polymerization process for making a water insoluble polymer. The process includes (1) providing a mixture comprising carbon dioxide and an aqueous phase, and containing a monomer and a polymer...  
WO/1996/028477A1
The present invention provides a process for making fluorinated polymers and copolymers having stable end groups. The process includes (1) contacting a fluoromonomer, an initiator capable of producing stable end groups on the polymer cha...  
WO/1996/024622A1
Process for the production of fluoropolymers and/or copolymer resins thereof by the use of an aqueous dispersion system incorporating a redox initiator system which comprises t-butyl hydroperoxide and sodium metabisulfite to initiate the...  
WO/1996/022315A1
An aqueous microemulsion polymerization procedure is described in which very small colloidal melt-processible fluoropolymer particles are produced from at least one gaseous monomer and optionally TFE. The polymerization procedure involve...  
WO/1996/022312A1
Polytetrafluoroethylene (PTFE) structures are described which are prepared by polymerizing liquid tetrafluoroethylene in an aqueous microemulsion region to obtain small particles of PTFE.  
WO/1996/022313A1
An aqueous microemulsion polymerization procedure is described in which very small colloidal polymer particles are produced from tetrafluoroethylene monomer. The polymerization procedure involves forming a microemulsion of at least one l...  
WO1996010605A3  
WO/1996/018659A1
Method for Polyvinylchloride production in aqueous suspension with recovery of refluxes, that provides for the use of a plant for Polyvinylchloride production that has at least one reactor to transform the vinyl chloride monomer into Pol...  
WO/1996/017875A1
The invention concerns a process for the radical polymerisation of ethylenically unsaturated monomers in an aqueous medium, characterised by the fact that: (a) the starting solution used for the polymerisation and the educts required for...  
WO/1996/017877A1
A fluororubber copolymer produced by free-radical polymerization in the presence of a diiodinated compound, containing 0.005-1.5 mol % iodine-containing fluorinated vinyl ether units, 40-90 mol % vinylidene fluoride units, 3-35 mol % per...  
WO/1996/015157A1
Process for the synthesis of block polymers, homopolymers and copolymers of narrow polydispersity having formula (1) by contacting selected vinyl monomer(s), vinyl-terminated compound(s) and free radicals in which effective control of pr...  
WO/1996/014357A1
A process is provided for preparing an acrylic copolymer latex having improved mechanical and shear stability comprising emulsion polymerizing at least one ethylenically unsaturated monomer having up to 23 carbons in the presence of, by ...  
WO/1996/012773A1
An aqueous fluoropolymer dispersion comprising 100 parts by weight (in terms of solid content) of an aqueous fluoropolymer dispersion and 1-20 parts by weight (in terms of solid content) of an organosilicon compound and useful as a coati...  
WO/1996/010605A2
Disclosed herein are polymers made by free radically polymerizing the novel compound vinyl(perfluorocyclopropane), and optionally other monomers to form copolymers. The repeat unit formed by vinyl(perfluorocyclopropane) contains an olefi...  
WO/1996/010588A1
A process is disclosed for preparing an aqueous polymer dispersion. An aqueous dispersion of a polymer that contains at least one chemically bound, incorporated monomer containing at least one ethylenically unsaturated group, is prepared...  
WO/1996/010047A1
Selected partially fluorinated 'alpha','omega'-dienes can be (co)polymerized to form polymers in which cyclic structures are present. A novel free radical polymerization process, in which the polymer obtained is dependent on the initiato...  
WO/1996/006887A1
An aqueous dispersion of a vinylidene fluoride (VdF) copolymer which is produced by the emulsion polymerization of VdF monomer and a reactive emulsifier, wherein the average particle diameter of the copolymer is as small as 200 nm or les...  
WO/1996/003446A1
A fine powder of a molten high-molecular-weight fluororesin having a melt viscosity of 108-1013 P, an apparent density of 0.4-1.5 g/cc, and a specific surface area of 2 m2/g or less. A molded article produced from this fluororesin, which...  
WO/1996/001851A1
A polymerization process procedures polymers that are insoluble in a reaction mixture that was homogeneous before the polymer began to form. A dispersing agent in the polymerizing system (i.e., the reaction mixture plus the dispersing ag...  
WO/1996/001850A1
A polymerization process produces polymers that are insoluble in a reaction mixture that was homogeneous before the polymer began to form. A dispersing agent in the polymerizing system (i.e., the reaction mixture plus the dispersing agen...  
WO/1996/001853A1
A process for preparing a polymer or copolymer from polymerizable monomers by suspension polymerization whereby foam formation during the removal of residual monomers is inhibited, which process comprises adding at least one salt of an i...  
WO/1995/034583A1
In this invention an aqueous seeded microemulsion polymerization procedure is provided in which colloidal polymer particles are produced from tetrafluoroethylene or tetrafluoroethylene/comonomer or other polymerizable monomers. The parti...  
WO/1995/033782A1
A function-containing fluoroolefin represented by the following general formula: CH2 = CFCF2-Rf6-(CH2)k-X2 (wherein X2 represents -CH2OH, (a) or (b); Rf6 represents C1-C40 fluoroalkyl or -ORf7; Rf7 represents C1-C40 fluoroalkylene or C3-...  
WO/1995/034096A1
Processes for pattering amorphous fluoropolymer TeflonAF, passivating high temperature superconductor films, and improved electronic devices with amorphous fluoropolymer TeflonAF films are disclosed.  
WO/1995/032996A1
This invention relates to carbon based initiators for polymerization and telomerization reactions. Polymers produced are useful as water repellants and materials with high temperature resistance. Telomers are useful as intermediates in t...  
WO/1995/030697A1
A method of radically (co)polymerizing vinyl ester, vinyl halide, diene, acrylonitrile and 'alpha'-olefin monomers, optionally with one or more ethylenically unsaturated monomers, with a polymerization initiator in the presence of an amo...  
WO/1995/029943A1
A process for suspension polymerization of tetrafluoroethylene to polytetrafluoroethylene is characterized by starting reaction at low temperature and increasing temperature to higher temperature during the reaction.  
WO/1995/014047A1
Polytetrafluoroethylene coagulate obtained from aqueous dispersion polymerization of tetrafluoroethylene in the presence of volatile initiator, surfactant, and possibly wax, is purified of these contaminants by exposing the coagulate to ...  
WO/1995/008580A1
A process for producing a low-molecular-weight polytetrafluoroethylene (PTFE) having a melting point in the range of 250 to 325 �C, which comprises polymerizing tetrafluoroethylene in a solvent selected from the group consisting of hyd...  
WO/1995/008598A1
An aqueous dispersion of a vinylidene fluoride (VdF) polymer which comprises a VdF polymer having a particle diameter of 200 nm or less and has a solids concentration of 30 - 50 wt. % and wherein the content of a fluorinated surfactant i...  
WO/1995/008581A1
Polymeric compositions are derived from copolymers of 'alpha','beta','beta'-trifluorostyrene with a variety of substituted 'alpha','beta','beta'-trifluorostyrenes. These compositions are suitable for use as membranes, particularly as ion...  
WO/1995/006073A1
Novel polytetrafluoroethylene structures are described, which were prepared by polymerizing liquid tetrafluoroethylene in aqueous dispersion. The novel structures include continuous three-dimensional networks of fibrils and bundles of fi...  
WO/1995/006072A1
Novel polytetrafluoroethylene structures are described, which were prepared by polymerizing liquid tetrafluoroethylene in aqueous dispersion. The novel structures include continuous three-dimensional networks of fibrils and bundles of fi...  
WO/1995/005406A1
The invention provides a process for polymerizing at least one fluoromonomer in the presence of a cyclic perfluorinated amine. Perfluoro-N-methylmorpholine is a preferred cyclic amine.  
WO/1995/003341A1
A process for the solventless polymerization of brominated styrenes includes blending monomers of brominated styrenes with a polymerization initiator, feeding the monomer/polymerization initiator mix into a prepolymerizer wherein the mon...  
WO/1994/024178A1
Novel polymers are disclosed which can be used to prepare water-based compositions having the capability of forming a uniform, low surface-energy, thin film on a substrate. Such compositions comprise a polymer having at least one fluoroa...  
WO/1994/021696A1
A process for producing a fluoropolymer containing a fluoroolefin unit as the principal constitutional unit, which comprises employing CF3(CF2)nCH2CH3 or CF3(CF2)nH (wherein n is an integer from 1 to 8) as a polymerization medium and CF2...  
WO/1994/021697A1
Fluoroalkyl sulfinates were synthesized and used as a source of fluoroalkyl radicals in aqueous emulsion polymerization. The resulting polymers contained a high level of perfluoroalkyl end groups. When fluoroalkyl disulfinates were utili...  
WO/1994/018248A1
A novel process for the free radical polymerization of fluoromonomers in which perfluoroalkyl sulfide solvents are used is disclosed. The solvents have little effect on atmospheric temperature and ozone concentrations. The polymers produ...  
WO/1994/017109A1
A process for producing a fluoro(co)polymer by (co)polymerizing a fluoro-olefin which aims at using a substance that can substitute for R-113 or R-114 conventionally used as the solvent, solving the problem of coloration of the formed fl...  
WO/1994/015258A1
A polymer has at least one photoactive site and more than one perfluorocyclobutane group. New monomers containing photoactive sites or photoactive precursors and at least one perfluorovinyl group are useful for making such polymers. Proc...  
WO/1994/014738A1
Described are monomers of the formula (I) (e.g. 3,3,4,4,5,5,6,6-octafluoromethylenecyclopentane) plus copolymers prepared from such monomers and from one or more monomers copolymerizable with them. Such compounds are suitable for use in ...  
WO/1994/014741A1
Disclosed herein are novel monomers of the formula CF2 = CF(CF2)nCH2OCF = CF2, wherein n is 1,2 or 3, and novel intermediates of the formula CF2C1CFCl(CF2)nCH2OCF = CF2 wherein n is 1, 2 or 3. Also disclosed is a fluoro-polymer containin...  
WO/1994/014203A1
The invention concerns electrode membranes made of an ion-exchange material which forms the core and electrodes which contact each side thereof. The membranes are intended for use in fuel cells or electrolysers, the ion-exchange material...  
WO1994005706A3  
WO/1994/007929A1
An improved process for the polymerization of fluoromonomers to fluoropolymers which comprises using as a chain transfer agent the compound Y(CF2)mCH2CH2I, wherein m is 3 to 12, and Y is F or -CH2CH2I.  

Matches 701 - 750 out of 8,530