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Patent Searching and Data


Matches 901 - 950 out of 6,144

Document Document Title
WO/1988/007554A1
A process for preparing telechelic low molecular weight vinyl resins having alkoxysilylalkyl thioether groups on both terminals and resins obtained by the process are disclosed. The process comprises conducting photopolymerization betwee...  
WO/1987/005032A1
Process for the production in water emulsion of polyvinyl acetate, in which partially hydrolysed polyvinyl acetate, prepared in emulsion under the form of micro-particles having a diameter suitable for copolymerization or to clamp themse...  
WO/1987/004441A1
A method to produce in ethyl alcohol, polyvinyl acetate, partially hydrolized in acid or basic surroundings, preferably with hydrolysis values between 10 and 55 % moli OH, suitable for polymerization of vinyl chloride monomer in aqueous ...  
WO/1987/002055A1
Highly crystalline polymers containing recurring vinylidene fluoride units. Such polymers, including homopoly(vinylidene fluoride), have a degree of crystallinity greater than 70%. Also disclosed is a method for enhancing the crystallini...  
WO/1986/007075A1
A solution/dispersion composition comprising a perfluorinated polymer containing sites convertible to ion exchange groups dissolved in a solvent/dispersant having: a boiling point of less than 110oC; a density of from 1.55 to 2.97 grams ...  
WO/1986/000294A1
Agent for the fluoridation of organic compounds having the general formula (I), wherein Q<+> represents either: i) a cation having the formula (II), wherein R1, R2, R3 and R4 which may be the same or different, represent an alkyl radical...  
WO/1984/000369A1
Method for the preparation of aqueous dispersions as well as the (co)polymerization of emulsions of vinyl halides and/or vinyl esters and optionally other monomers in the presence of emulsifiers. To stabilize the resultent dispersions, p...  
WO/1983/004032A1
Novel fluorodioxoles which may have Cl or F substituents in the 4 or 5 positions and have two F or CF3 substituents in the 2 position are useful monomers for the preparation of homopolymers and copolymers with tetrafluoroethylene and ter...  
WO/1983/002280A1
Process for producing low energy vinyl dispersion resins which, in a plastisol, can be fused either at lower temperatures or in a shorter period of time than the normal dispersion grade resins presently employed. The new vinyl resin is c...  
WO/1983/000487A1
A process of preparing cation exchange resins by radiation grafting with copolymerization onto a perhalogenated fluorine-containing hydrocarbon polymer at least one functional monomer of formula CF2 = CF(CF2)nA or CF2 = CF-O(CFX-CFX)mA a...  
WO/1982/003391A1
A process for preparing indole or indole derivatives, by reaction an aniline compound with a 1,2-glycol or an ethanolamine compound in gas or liquid phase, or in gas-liquid mixed phase, Various solid acids. metals and activated carbon ca...  
WO1982002555A1
A polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto an aqueous coating solution of an alkali metal or ammonium salt of the reaction product or oligomers of an aliphatic aldehyde...  
WO/1982/002554A1
A polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto an aqueous coating solution of an alkali metal or ammonium salt of the reaction product or oligomers of an aromatic aldehyde,...  
WO/1982/002557A1
Process for photochlorinating poly (vinyl chloride), ('PVC'), suspended in liquid chlorine ('Cl2') which swells the PVC and permits chlorination to occur in a gel phase. PVC starting material is in the form of solid free-flowing macrogra...  
WO/1982/002205A1
A process for recovering chlorinated poly (vinyl chloride) ('CPVC') which is dissolved in liquid chlorine ('Cl2') to form a CPVC solution, CPVC is recovered by adding the CPVC solution to a halogenated lower alkane ('HLA'), which is simu...  
WO/1982/001882A1
Process of radiation graft polymerizing a fluorinated unsaturated carboxylic acid monomer to a fluoropolymeric permselective membrane in order to improve its performance when used in an electrolysis cell.  
WO/1982/000645A1
Polymerization reaction vessel having a thick coating on the inner surfaces thereof which is resistant to polymer buildup thereon. The coating results from applying to said surfaces an organic solvent solution containing an unneutralized...  
WO/1981/003333A1
Process for making vinyl polymer particles that are spherical, highly porous and of uniform size with substantially no polymer buildup on the reactor surfaces. A dispersion or emulsion is first formed with high agitation comprised of an ...  
WO/1981/003334A1
Process for making porous, substantially spherical particles of vinyl polymers or resins by the use of the suspension polymerization technique. In the polymerization there is employed a water-insoluble dispersant comprised of a substanti...  
WO/1981/002578A1
The invention relates to the production of vinyl dispersion or paste resins by means of the emulsion polymerization process and the recovery of the resins from the polymer latices produced thereby. In the process, the polymer latex is fi...  
WO/1981/002299A1
Process for the suspension polymerization of vinyl chloride, if so desired with one or more copolymerizable monomers, with monomer-soluble, radical-forming initiators, and in the presence of suspending agents, to vinyl chloride polymers ...  
WO/1981/002158A1
Process for producing vinyl dispersion resins by means of the emulsion polymerization technique. The vinyl monomer or monomers are reacted in an aqueous medium using a water-insoluble free radical yielding catalyst, an emulsifier or emul...  
WO/1981/001851A1
New and novel process of producing a vinyl resin latex by the emulsion polymerization technique comprising adding to the latex with thorough mixing, an aqueous solution of an electrolyte, such as, for example, ammonium carbonate, and rem...  
WO/1981/001567A1
An elongated material comprising a vinylidene fluoride polymer and having a Young's modulus from 3 to 15 GPa and 15 nC cm-2K-1, or a hydrostatic piezoelectric constant greater than 10 pCN-1.  
WO/1981/001148A1
Process of preparing vinyl dispersion resins by conducting the polymerization reaction of the vinyl monomer or monomers in an aqueous medium in the presence of a polymerization initiator or catalyst and an emulsifier or emulsifier system...  
WO/1981/001005A1
This invention relates to the suspension polymerization of vinyl monomer (s) in an aqueous medium to form vinyl resins which are designed for use in making plastisols. The process is conducted in an aqueous medium using a free-radical yi...  
WO/1981/000572A1
This invention relates to making dense, spherical particles of vinyl plastisol resins by means of a suspension polymerization procedure. The dense, spherical particles or beads have a diameter of about 10 to about 100 microns and are mad...  
WO/1980/002388A1
Polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto an aqueous coating composition containing the reaction product of a thiodiphenol, or a derivative thereof, with a bleaching age...  
WO/1980/000967A1
Process for preparing vinyl dispersion resins by conducting the polymerization reaction of the vinyl monomer or monomers in an aqueous alkaline medium, using an oil-soluble polymerization initiator, at low temperatures, in the presence o...  
WO1980000801A1
Polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto a coating composition containing, as a primary ingredient, the reaction product or oligomers of (1) an alkyl or halogen substit...  
JP7444072B2
Provided are: a method for manufacturing modified particles that have outstanding dispersibility and that can suppress unevenness in the surface of a layer; modified particles that can form a thin layer with unevenness of the surface sup...  
JP7438143B2
The invention relates to biosourced vinylidene difluoride. The invention also relates to methods for preparation of biosourced vinylidene difluoride from various renewable raw materials. The invention also relates to homopolymers of viny...  
JP2024025763A
The present invention provides a modified polytetrafluoroethylene that has a low extrusion pressure despite having a high breaking strength. A modified polytetrafluoroethylene containing tetrafluoroethylene units and chlorotrifluoroethyl...  
JP2024025766A
The present invention provides a modified polytetrafluoroethylene and an aqueous dispersion that have a low extrusion pressure despite having a high breaking strength. [Solution] A modified polytetrafluoroethylene having a breaking stren...  
JP2024025761A
The present invention provides a modified polytetrafluoroethylene that has a low extrusion pressure despite having a high breaking strength, and a stretched product using the same. [Solution] Contains a tetrafluoroethylene unit and a hex...  
JP7436882B2
Provided is a polymerization tank that enables efficient withdrawal of a reaction mixture containing a particulate fluorine-containing polymer and water from the polymerization tank. A polymerization tank for polymerizing at least a fluo...  
JP2024508165A
The present invention relates to a method of polymerizing at least one fluorinated monomer containing an ethylene bond, the method comprising contacting the at least one fluorinated monomer with a polymerization initiator and a chain tra...  
JP7425371B2
Provided is a method for producing an aqueous dispersion of a fluorine-containing elastomer, including polymerizing a fluorine-containing monomer in the presence of an aqueous medium and a polymer (1) containing a polymerization unit bas...  
JP7423546B2
Method of reducing the amount of a fluorinated acid or its salts from a fluoropolymer, the method comprises: (i) providing a composition containing particles of the fluoropolymer, (ii) contacting the fluoropolymer particles with a treatm...  
JP7417131B2
Provided is a method for producing polytetrafluoroethylene, comprising polymerizing tetrafluoroethylene in an aqueous medium in the presence of a nucleating agent and a polymer (I) containing a polymerization unit (I) based on a monomer ...  
JP7415778B2
To provide a fluoropolymer having excellent adhesion to various types of substrates and a method for producing the same.A fluoropolymer contains a unit (a) based on at least one monomer (a) selected from the group consisting of 1,1,2-tri...  
JP7413767B2
To provide a vinyl chloride based resin for paste processing, capable of providing a foam high in foaming magnification, excellent in chemical embossing properties and excellent in thermal stability, and a new vinyl chloride based resin ...  
JP7413766B2
To provide a paste vinyl chloride-based resin excellent in surface smoothness, and start foaming roughness resistance.A paste vinyl chloride-based resin is provided, including a vinyl chloride-based resin of a large particle group of a p...  
JP2024001236A
The present invention provides a method for producing purified polytetrafluoroethylene powder that reduces short-chain fluorine compounds from low molecular weight polytetrafluoroethylene. [Solution] The method includes a step of reducin...  
JP7410045B2
The invention relates to a low coagulum fluoropolymer latex containing little or no surfactant, and having a high fluoropolymer solids content. The polymerization is run at temperatures somewhat greater than typically used. The latex can...  
JP7408405B2
To provide a method for producing a vinyl chloride-based polymer which has good fish-eye characteristics and excellent molding processability and further has less scale adhering to an inner wall of a polymerization tank and is improved i...  
JP2023182735A
The present invention provides a manufacturing method capable of manufacturing hollow fine particles containing a fluororesin and having a large average particle size. [Solution] A step A in which a solution containing a fluorine-substit...  
JP2023175026A
The present invention provides a method for producing a fluoropolymer with improved utilization efficiency of a polymerization initiator. [Solution] Formula (1): XRfaC(=O)OOC(=O)RfbY (wherein X and Y are independently H or F, Rfaand Rfba...  
JP7393601B2
To provide an ion-exchange membrane that, when being used in a redox flow battery, provides excellent current efficiency and can suppress reduction in voltage efficiency. The ion-exchange membrane contains a fluorinated polymer having su...  
JP2023171579A
An object of the present invention is to obtain an aqueous polytetrafluoroethylene dispersion in which fluorine-containing compounds are removed or reduced. [Solution] The present invention includes a step of removing or reducing a compo...  

Matches 901 - 950 out of 6,144