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| Number | Title | Issue Date |
| 7442746 | Epoxidation of unsaturated cationically stabilized polymer latex The present invention is directed to a process for synthesizing an epoxidized polymer that includes the steps of: (1) preparing a cationically stabilized polymer latex containing at least one conjugated diolefin monomer in a first ... | 10/28/2008 |
| 7381761 | Method for producing silicone-treated polymers Silicone-containing addition polymers having numerous uses are prepared by polymerizing addition polymerizable monomers in the presence of a silicone-containing polyvinyl alcohol, and/or by adding a silicone-containing polyvinyl alcohol to an aqueous addition polyme... | 06/03/2008 |
| 7138485 | Method for removing metal ions from polymers or polymer solutions The invention relates to a simple, economical and reliable method for removing catalytic residues from polymer solutions. According to the inventive method, the copper content is reduced to a non-disturbing concentration level. ... | 11/21/2006 |
| 7129292 | Method for the emulsion polymerization of olefins A process for emulsion polymerizing one or more olefins involves reacting it/them with at least one complex compound of the formula Ia or b where M is a transition metal from groups 7 to 10 of the Periodic Table ... | 10/31/2006 |
| 7022762 | Method of emulsion polymerization A method has been disclosed of preparing ultrafine hydrophobic latex particles of polymers and copolymers by free radical emulsion polymerization in a water-based system, making use therefor, in order to polymerize or copolymerize monomers or monomer mixtures respec... | 04/04/2006 |
| 7019072 | Method of preparing latex for coating paper The present invention relates to styrene-butadienie latex, specifically a method of preparing latex for coating paper which shows excellent adhesion while maintaining printing property and comprised in a composition for coating paper. To achieve the object of the pr... | 03/28/2006 |
| 6900262 | Synthesis and characterization of nanocomposites by emulsion polymerization The present invention generally provides a method for producing an exfoliated nanocomposite. The method involves charging to water, as the continuous phase, monomers, polymerizable surfactant, and water-soluble initiator. The monomers are allowed to polymerize under... | 05/31/2005 |
| 6852797 | Method for producing polybutadiene latex with an optimized thermal current profile A polybutadiene latex is prepared by a process in which butadiene is polymerized by free radical emulsion polymerization in the presence of initiator and, if required, dispersants and further conventional assistants, the polymerization being carried out in the prese... | 02/08/2005 |
| 6852821 | Aqueous primary dispersions and coating matters, a method for producing same and the use thereof Aqueous primary dispersions and coating materials comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core-shell particles having a diameter≦500 nm preparable by controlled free-radical microemulsion or miniemulsion... | 02/08/2005 |
| 6818698 | Aqueous emulsification of high molecular weight functionlized polyolefins A one-step direct method of making a high molecular weight functionalized polyolefin aqueous emulsion is provided. In this one-step direct method, a functionalized polyolefin having a molecular weight of at least 10,000, a fatty acid, a base, a surfactant, and water... | 11/16/2004 |
| 6803020 | Method for preparing latex by emulsion (co) polymerization of ethylenically unsaturated monomers, with direct inline monitoring by raman spectroscopy The invention concerns a novel method for preparing latex by emulsion (co)polymerization of ethylenically unsaturated monomers, wherein the direct inline monitoring is carried out by Raman spectroscopy. The invention also concerns latex compositions obtainable by th... | 10/12/2004 |
| 6800699 | Process for the production of aqueous polymer dispersions Process for the production of aqueous polymer dispersions by reaction of one or more olefinically unsaturated compounds in aqueous medium in the presence of a complex compound which possesses the structural element Y—M—E, E standing for nitrogen, M for a transit... | 10/05/2004 |
| 6756419 | Chemical grafting onto a substrate and coating composition A composition and method that provides a chemically grafted coating onto a substrate. The composition comprises an acrylate and a grafting initiator. The acrylate may be a waterborne urethane acrylate. The composition may also comprise resistance agents, adhesion ag... | 06/29/2004 |
| 6743514 | Radiation-curable coating for ink jet printing This invention pertains to radiation-curable aqueous compositions comprising a mixture of water-reducible oligomer, monomer, and water-insoluble cationically-modified latex. More particularly, the invention pertains to radiation-curable aqueous compositions that are... | 06/01/2004 |
| 6737483 | Method for polymerising olefins in the presence of water The invention concerns a method for polymerising at least one olefin in the presence of at least a catalyst comprising a sequence E—M—X wherein E represents an oxygen or sulphur atom; M represents a nickel or palladium or platinum atom; X represents a phosphorus... | 05/18/2004 |
| 6723774 | Method for producing caoutchouc particles The invention relates to a method for producing caoutchouc particles (K) by means of emulsion polymerisation in the presence of an emulsifier and a polymerisation initiator. Said particles contain A) 80 to 100 wt. % of one or more conjugated diene monomers (A) in re... | 04/20/2004 |
| 6696518 | Method of selectively hydrogenating ethylenically unsaturated double bonds in polymers The present invention relates to a process for hydrogenating ethylenically unsaturated double bonds in polymers P by reacting an aqueous dispersion of at least one polymer P with hydrogen in the presence of at least one hydrogenation catalyst comprising a... | 02/24/2004 |
| 6649724 | Conjugated diene rubber gel, rubber compositions containing the same and process for production of conjugated diene rubber A conjugated diene rubber gel comprising 80-99 weight % of conjugated diene monomer units and 20-1 weight % of aromatic vinyl monomer units and having a swelling index of 16 to 70 as measured in toluene. A rubber vulcanizate made from a rubber composition... | 11/18/2003 |
| 6515030 | Determining production parameters of scale flow device A device for producing disperse mixtures by ultrasound, containing a housing, and a reaction chamber within the housing and at least one sonotrode having a free emitting surface which is directly in effective connection with the reaction chamber and whose... | 02/04/2003 |
| 6503968 | Asphalt modifier of styrene-butadiene-styrene block copolymer and styrene-butadiene latex This invention relates to an asphalt modifier comprising 5~30 wt. %. of solubilized styrene-butadiene-styrene block copolymer and 70~95 wt. % of solubilized styrene-butadiene latex, which has an excellent resistance property against plastic deformation, w... | 01/07/2003 |
| 6399701 | Surfactant-free semi-continuous emulsion polymerization process for making submicron sized particles for carrier coatings Submicron sized particles of poly(methyl methacrylate) are prepared by a surfactant-free semi-continuous emulsion polymerization process that involves (i) preparing an aqueous phase containing a free radical initiator in water by heating and stirring, (ii... | 06/04/2002 |
| 6393655 | Rubber products having better abrasion resistance This invention is based upon the unexpected discovery that the physical properties of rubber products made with styrene-butadiene rubber can be significantly improved by synthesizing the styrene-butadiene rubber by a process which comprises (1) charging w... | 05/28/2002 |
| 6384129 | Semi-batch emulsion process for making diene rubber latex, rubber latex made thereby, and graft copolymer made therefrom A semi-batch process is provided for making a diene rubber latex. The process involves (a) providing an amount of an initial liquid batch composition (containing water, emulsifier and diene monomer), sufficient to occupy from 50 to 80 volume percent of a ... | 05/07/2002 |
| 6369158 | Dibenzyltrithiocarbonate molecular weight regulator for emulsion polymerization Mercaptans are normally used as chain transfer agents in emulsion polymerizations. The mercaptans used in commercial applications are typically complex mixtures of hundreds of similar compounds having boiling points within a narrow range. The chain transf... | 04/09/2002 |
| 6365669 | Method for preparing polybutadiene latex A method for preparing a polybutadiene latex comprises providing an emulsion polymerization medium by reacting a mixture of water, butadiene monomers, a surfactant, a chain transfer agent, an initiator and an electrolyte, preferably at a temperature of ab... | 04/02/2002 |
| 6329461 | Silicone-containing aqueous coating composition and method of producing same A method of producing silicone-containing aqueous coating compositions excellent in shelf stability of the emulsion and in weather resistance, stain resistance, water resistance and solvent resistance of coatings derived therefrom is provided. The method ... | 12/11/2001 |
| 6303685 | Water dispersed primers A water dispersed primer composition comprising a solution of a halogenated hydrocarbon polymer in organic solvent; and a dispersing agent added to the solution to form a fluid primer to be dispersed in water to provide the water dispersed primer composit... | 10/16/2001 |
| 6232389 | Barrier coating of an elastomer and a dispersed layered filler in a liquid carrier and coated articles Applications of barrier coating mixtures containing in a carrier liquid, (a) an elastomeric (preferably butyl-containing) polymer; (b) a dispersed exfoliated layered filler having an aspect ratio greater than 25; and (c) at least one surfactant, wherein t... | 05/15/2001 |
| 6211287 | Particle formation process and marking materials thereof A process for the preparation of resin particles comprising: adding a mixture of at least one free radical reactive monomer continuously to a heated aqueous solution of a water soluble free radical initiator and a water soluble salt to form latex emulsion part... | 04/03/2001 |
| 6160027 | Process for the preparation of polymer particles It is desirable to reduce the amount of volatile organic blowing agent in expandable polystyrene. This may be accomplished by partially polymerizing a mass of styrene and incorporating therein water together with an emulsifier. The partially polymerized m... | 12/12/2000 |
| 6150449 | Fire resistant compositions A method is described for protection against fire with coating and paint compositions for houses, polymer constructions, industrial installations, and transport vehicles, in which polymeric products produced by processing polystyrene and copolymers to mac... | 11/21/2000 |
| 6107382 | Process for the production of improved PSA's General purpose inherently tacky acrylic pressure sensitive adhesive polymers formed of alkyl acrylates, vinyl esters, and saturated carboxylic acids, having improved properties, a lower residual monomer content are formed by a sequential emulsion polymer... | 08/22/2000 |
| 6087016 | Barrier coating of an elastomer and a dispersed layered filler in a liquid carrier Barrier coating mixtures contain in a carrier liquid, (a) an elastomeric (preferably butyl-containing) polymer; (b) a dispersed exfoliated layered filler having an aspect ratio greater than 25; and (c) at least one surfactant, wherein the solids content o... | 07/11/2000 |
| 5985993 | Method for preparing polybutadiene latex A method for preparing a polybutadiene latex comprises providing an emulsion polymerization medium by reacting water, butadiene monomers, a surfactant, a chain transfer agent, an initiator and an electrolyte, preferably at a temperature of about 60~80° C... | 11/16/1999 |
| 5959000 | Erasable ink Provided is an erasable ink comprising an emulsion liquid prepared by polymerizing a polymerizable monomer containing a conjugate diene compound in a solvent containing water in the presence of a dye and a surfactant, wherein the polymerizable monomer may... | 09/28/1999 |
| 5902853 | Particle formation process and marking materials thereof A process for the preparation of resin particles comprising: adding a mixture of at least one free radical reactive monomer continuously to a heated aqueous solution of a water soluble free radical initiator and a water soluble salt to form latex emulsion part... | 05/11/1999 |
| 5869570 | Composition of and process for forming polyalphaolefin drag reducing agents A composition including polyalphaolefins that function as drag reducing agents and a process for the preparation of polyalphaolefins that function as drag reducing agents are disclosed. The process includes contacting alphaolefin monomers with catalyst pa... | 02/09/1999 |
| 5800714 | Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange resin Water recovered from the polymerization of vinyl monomers can be treated to remove or deactivate chain transfer agents present in the water allowing resuse in polymerization processes. The water recovered from a vinyl polymerization reaction is contacted ... | 09/01/1998 |
| 5750618 | Process for the production of latices based on conjugated dienes by emulsion polymerisation Latices based on conjugated dienes are produced using emulsion polymerization by introducing the monomers to be polymerized into the initially introduced seed latex in the presence of a free-radical forming activator and an emulsifier in such a manner tha... | 05/12/1998 |
| 5741618 | Process for producing polymer toner A process for producing a polymer toner comprises the steps of pouring a polymerizable monomer composition containing at least a polymerizable monomer and a colorant, but containing no oil-soluble polymerization initiator into an aqueous dispersion medium... | 04/21/1998 |
