Class 523/332 - Extracting material from solid polymer latex or aqueous dispersion or suspension with a liquid nonreactant material, e.g., solvent stripping, coprecipitation, etc.

Subclass of Class 523 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Process wherein a solid polymer latex or aqueous dispersion
No. of patents: 83
Last issue date: 04/03/2012

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Number	Title	Issue Date
8148450	Process to produce a hydrocarbon rubber cement utilizing a hydrofluorocarbon diluent Provided for herein is a process to produce an essentially homogeneous single liquid phase hydrocarbon-rubber cement from a polymer slurry comprising a hydrocarbon-rubber, a diluent, and unreacted monomer(s), the process comprising:	04/03/2012
7968625	Aqueous fluoropolymer dispersion and process for producing the same A process for producing an aqueous fluoropolymer dispersion which includes adding a specific compound to a to-be-treated aqueous fluoropolymer dispersion containing a particle of fluoropolymer dispersed therein, the to-be-treated aqueous fluoropolymer dispersion con...	06/28/2011
7759413	Dispersion method Disclosed are methods of dispersing discrete fillers in a polymer matrix to form a composite. Also disclosed are composites having discrete fillers dispersed in a polymer matrix. ...	07/20/2010
7629397	Phase separation process utilizing a hydrofluorocarbon Provided for herein is a process for separating a hydrocarbon-rubber from a hydrofluorocarbon diluent comprising contacting a polymer slurry comprising the hydrocarbon-rubber dispersed within the hydrofluorocarbon diluent with a hydrocarbon solvent capable of dissol...	12/08/2009
7351342	Method for recovering fluorine-containing emulsifier An aqueous solution containing a fluorine-containing emulsifier in a low concentration of at least 1 ppm by mass and at most 1% by mass (e.g., coagulation waste water after an emulsion polymerization of a fluoropolymer and/or an aqueous solution obtained by washing ...	04/01/2008
7247390	Compatible blend systems of oxygen barrier polymers and oxygen scavenging polymers Herein is disclosed an oxygen barrier composition comprising an oxygen barrier polymer and an oxygen scavenging polymer. Preferably, the oxygen barrier polymer is selected from polymers or copolymers of vinyl alcohol, polyesters, polymers or copolymers of vinylidene...	07/24/2007
7238300	Process for subjecting to actinic radiation and storing an oxygen scavenger, and a stored oxygen scavenger A method comprises subjecting ant oxygen scavenger to actinic radiation; and then optionally storing the oxygen scavenger in a container, the container configured such that the oxygen scavenger exhibits no substantial oxygen scavenging activity while inside the cont...	07/03/2007
7192994	Method of producing polyester powdery coating material Disclosed is a method of producing a powdery coating material by using: a curable polyester resin (A) having a hydroxyl group and/or a carboxyl group at the terminals thereof, and further having a number average molecular weight of from 1,000 to 30,000, a glass tran...	03/20/2007
7176250	Fluororesin powder coating composition A non-vinylidene fluororesin powder coating material having blocking resistance and high impact resistance, is provided. A fluororesin powder coating composition comprising a non-vinylidene fluororesin having a Tg higher than 40° C. and a resin having a Tg of from ...	02/13/2007
7153894	Phase-separated composition comprising two miscible solvents, and use thereof in a process for making capsules The invention relates phase-separated compositions comprising two miscible solvents. More specifically, the invention relates to compositions comprising liquid droplets of an internal phase comprising a solvent B and further compounds, said droplets being dispersed ...	12/26/2006
7101925	Process for preparing fluoropolymer dispersions A process to substantially remove the fluorinated anionic surfactants comprising the following steps: a) addition to a fluoropolymer dispersion of a nonionic surfactant, in an amount in the range 1.5%–25% by weight, referred to the fluoropolymer weigh...	09/05/2006
7071292	Method for the preparation of purified elastomers from solution The present invention relates to a method for the preparation of purified elastomers prepared by emulsion polymerization, wherein the level of impurity is reduced by up to 99 wt. %, expressed in terms of the unpurified elastomer. The present invention also relates t...	07/04/2006
6946504	Formulations containing polyvinyl alcohol and sulphonated melamine polycondensate for use in gypsum slurries Aqueous formulation for enhancing flowability and setting properties of gypsum, slurries, comprising wax, polyvinyl-alcohol and a sulphonated melamine polycondensate are used for imparting water repellency to gypsum wall boards. ...	09/20/2005
6921563	Multi-layer laminate, packaging material and packages made therefrom A multi-layer laminate comprising at least one layer of fiber material and at least one layer of plastic laminated thereto, which plastic layer comprises at least 50 weight percent of a cycloolefin copolymer. Also disclosed are packaging materials and packages made ...	07/26/2005
6894090	Method for producing aqueous dispersion of thermoplastic resin microparticles and toner for electrophotography The present invention provides a method for producing an aqueous dispersion of thermoplastic resin microparticles containing considerably less residual solvent remaining in resin particles, and a toner for electrophotography containing considerably less residual sol...	05/17/2005
6833403	Aqueous dispersions of fluoropolymers Fluorine-containing emulsifiers can be removed from fluoropolymer dispersions by adding to the dispersion a nonionic emulsifier, removing the fluorine-containing emulsifier by contact with an anion exchanger and separating the dispersion from the anion exchanger. Th...	12/21/2004
6825250	Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions The present invention provides a process of reducing the amount of fluorinated emulsifier in an aqueous fluoropolymer dispersion by contacting the aqueous fluoropolymer dispersion with an anion exchange resin in a non-fixed resin bed, the process comprising: ...	11/30/2004
6822022	Method of producing polyester powdery coating Disclosed is a method of producing a powdery coating material by using: a curable polyester resin (A) having a hydroxyl group and/or a carboxyl group at the terminals thereof, and further having a number average molecular weight of...	11/23/2004
6812267	Precipitation process for making polyvinylidene fluoride powder coatings and coatings made by the process A process for making pigmented PVDF-based powder coatings by coagulation and powder based coatings made by the process. The process involves blending a PVDF latex and a water reducible acrylic polymer and pigment dispersion, adding coagulant to precipitate solid PVD...	11/02/2004
6743835	Preparation of nondusting free-flowing pigment concentrates The invention relates to a process for preparing nondusting free-flowing pigment concentrates with removal of the water from pigment suspensions comprising polymers and dispersants in a fluidized bed drier. The resulting bead-form pigment concentrates are nondusting...	06/01/2004
6706193	Method for recovering fluorinated emulsifiers from aqueous phases Fluorinated emulsifiers can be recovered from an aqueous phase containing small amounts of fluoropolymer particles by treating the aqueous phase with a small amount of a nonionic surface-active agent, bringing the aqueous phase adjusted in this way into contact with...	03/16/2004
6627258	Film for medical use, consisting of linear block polymers of polyurethane and a method for the production of such a film Porous films for medical use are provided comprising linear block polymers of polyurethane and urea containing hydrolyzable ester groups which are spaced along the carbon chain backbone of the film predetermined distances, so that upon hydrolysis of the e...	09/30/2003
6624210	Coating and excipient agent for oral or dermal dosage forms The invention relates to a method for the production of a coating and excipient agent for oral or dermal dosage forms, consisting of (a) 35-98% by weight of a copolymer consisting of radically polymerized C1-C4 esters of acrylic or methacrylic acid and ad...	09/23/2003
6613941	Method for recovering fluorinated alkanoic acids from waste waters Fluorinated emulsifier acids can be isolated from wastewater by firstly removing fine solids and/or material which can be converted into fine solids from the wastewater, preferably by precipitation, subsequently bringing the wastewater into contact with a...	09/02/2003
6596790	Precipitation process for making polyvinylidene fluoride powder coatings and coatings made by the process A process for making pigmented PVDF-based powder coatings by coagulation and powder based coatings made by the process. The process involves blending a PVDF latex and a water reducible acrylic polymer and pigment dispersion, adding coagulant to precipitat...	07/22/2003
6559205	Oxygen scavenging polymer blends and emulsion-based methods for preparing same Herein is disclosed a blend of a neat oxygen scavenging polymer and a second polymer. The blend can be prepared by extrusion of a neat formulation of the oxygen scavenging polymer and the second polymer. Also disclosed are methods for preparing the neat f...	05/06/2003
6552163	Method for fractioning poly (ethylene oxide) formed using a metallic cyanide catalyst A poly(ethylene oxide) polymer having low and high molecular weight fractions is fractionated by dissolving the polymer in a solvent for the low molecular weight fraction. A good separation of the low and high molecular weight fractions can be obtained. W...	04/22/2003
6369132	Fine particle size low bulk density thermoplastic polymers Fine particulate thermoplastic polymers [e.g., hydrophobically modified polyether-polyurethanes, polyacrylates, polyvinyl alcohol, polyether-polyols, polyacrylamide, aminoplast-polyethers and poly(acetal- or ketal-polyethers] having reduced bulk density, ...	04/09/2002
6265479	Deproteinizing agent and method of preparing cationic deproteinized natural rubber latex using the same Disclosed are a deproteinizing agent comprising a proteolytic enzyme and one or more cationic surfactants selected from the group consisting of an alkylamine salt, an alkylamine derivative and quaternized compounds thereof; and a method of preparing a cat...	07/24/2001
6262145	Process for the extraction of material from multi-phase systems A method for extracting and separating extractive components from fluids is provided. A first fluid and an extraction fluid are added to a vessel, thereby creating a two-phase two-layer system, wherein the first fluid and the extraction fluid are discrete...	07/17/2001
6194503	Method for obtaining polytetramethylene ether glycols with narrow molar-mass distribution The molecular weight distribution of polytetrahydrofuran and copolymers of tetrahydrofuran with alkylene oxides is narrowed down by blending the polymers with a mixture of an alicyclic compound, methanol and water at a temperature ranging from 0-40° C. T...	02/27/2001
6174991	Process for making stabilized non-colored rubber A process for the recovery of an initially living polymer from a cement produced in a polymerization process. The living polymer cement is shortstopped, washed, stabilised, coagulated and dried. The recovery process comprises adding a short stop to the po...	01/16/2001
6133345	Process for preparing pulverulent polymers by drying aqueous polymer dispersions The invention provides for a process for preparing pulverulent polymers by drying aqueous polymer dispersions in the presence of copolymers based on ethylenically unsaturated C3 -C6 carboxylic acids and their hydroxyalkyl esters as a...	10/17/2000
6107455	Removal of protein from natural rubber latex articles A method for lowering the extractable protein content in a natural rubber latex to below 30 parts per million (ppm) comprises the steps of treating by washing a rubber article, such as a rubber glove, with an aqueous solution containing a soluble silicate...	08/22/2000
6075073	Latices from emulsified hydrocarbon rubber solutions by membrane separation Rubbery polymers in hydrocarbon solutions are emulsified in aqueous liquids and converted to latices by partitioning the emulsion through a membrane of selective permeability to the hydrocarbon solvent relative to both water and the polymer, thereby remov...	06/13/2000
6066685	Method for treating plastics and solid fuel obtained by the same method A method for treating plastics, which is feasible on plastics containing films mixed therein, which is capable of performing dehydrochlorination simultaneously, and which provides processed plastics capable of being easily size-reduced. The method include...	05/23/2000
6043299	Process for the extraction of material from multi-phase systems A method for extracting and separating extractive components from fluids is provided. A first fluid and an extraction fluid are added to a vessel, thereby creating a two-phase two-layer system, wherein the first fluid and the extraction fluid are discrete...	03/28/2000
5998507	Thermosetting powder coating material and method A method for preparing a thermosetting powder coating material comprising: dispersing and mixing a base resin and a crosslinking agent in a dispersing and/or mixing machine equipped with a decompression device at a temperature in the range of 40 to 200° ...	12/07/1999
5968283	Method for heat stripping optical fibers The present invention discloses a method for heat stripping an optical fiber cable having a polymer coating and an optical fiber. A heat source is applied to the polymer coating causing the polymer coating to be heated rapidly to a break temperature, ther...	10/19/1999
5964957	Method for stripping optical fibers by hydration and dehydration The present invention discloses a method for stripping an optical fiber cable having a polymer coating and an optical fiber using hydration and dehydration techniques. A section of optical fiber cable is first immersed in a hydrating agent, thereby hydrat...	10/12/1999

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Class 523/332 - Extracting material from solid polymer latex or aqueous dispersion or suspension with a liquid nonreactant material, e.g., solvent stripping, coprecipitation, etc.