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| Number | Title | Issue Date |
| 8039581 | Thermal crystallization of a molten polyester polymer in a fluid A process for crystallizing a polyester polymer by introducing a molten polyester polymer, such as a polyethylene terephthalate polymer, into a liquid medium at a liquid medium temperature greater than the Tg of the polyester polymer, such as at a tempera... | 10/18/2011 |
| 7960503 | Continuous washing of poly(vinyl butyral) The present invention provides a method for continuously washing poly(vinyl butyral) in which a poly(vinyl butyral) slurry is passed through multiple continuous stirred tank reactors, each of which is adjusted to specific processing parameters that allow for continu... | 06/14/2011 |
| 7956156 | Method for the removal of isobutene oligomers from an isobutene polymer A process is described for removing isobutene oligomers from an isobutene polymer by stripping the isobutene polymer with vapors of a saturated hydrocarbon having at least 8 carbon atoms and at least partly driving out the isobutene oligomers. Troublesome isobutene ... | 06/07/2011 |
| 7432340 | Fluorinated alkyl substituted-thieno[3,4-]thiophene monomers and polymers therefrom Partially and fully fluorinated alkyl substituted thienothiophene monomers (and polymers thereof) wherein the monomers are represented by the formula: wherein R is a partially or fully fluorinated primary, seco... | 10/07/2008 |
| 7432339 | Inferred water analysis in polyphenylene sulfide production A method for producing polyphenylene sulfide (PPS) polymer, including polymerizing reactants in a reaction mixture in a vessel to form PPS polymer in the vessel, measuring values of operating variables of the vessel and/or PPS process, and determining the amount of ... | 10/07/2008 |
| 7393915 | Method for producing polyorganosiloxane-containing resin The object of this invention is to provide a new process for producing polyorganosiloxane-containing resin which comprises reducing volatile siloxane, characterized in that polyorganosiloxane-containing resin in a slurry state is heat-stripped in producing polyorgan... | 07/01/2008 |
| 7385002 | Process for preparing resin binder for toner The present invention relates to a process for preparing a resin binder for toner, comprising the steps of (A) carrying out an addition polymerization reaction of addition polymerization resin monomers including styrene in the presence or absence of an organic solve... | 06/10/2008 |
| 7378453 | Surface crosslinking treatment method of water-absorbing resin powder A surface crosslinking treatment method of a water-absorbing resin powder is disclosed that can overcome various problems in production encountered in the production of surface crosslinked water-absorbing resin powders on an industrial scale and can produce a water-... | 05/27/2008 |
| 7354392 | Structurally optimized hollow fiber membranes An elongated hollow microporous fiber comprises an inner wall surface defining an interior fiber lumen, an outer wall surface, and a microporous fiber wall therebetween, the fiber wall having one or more continuous, cohesive, elongated filaments embedded in the fibe... | 04/08/2008 |
| 7342088 | Method for precipitation of polyphenylene ether Method for precipitating polyphenylene ether which decreases fine particles therein and reduces periodic fluctuations in particle size. Method provides homogeneous polyphenylene ether particles. Polyphenylene ether particles are precipitated using mixed solution com... | 03/11/2008 |
| 7332223 | Polymers comprising thieno [3,4-b]thiophene and methods of making and using the same This invention presents polymers and copolymers comprising repeating units of thieno[3,4-b]thiophene. Water-borne dispersions of such polymers and copolymers can be cast by conventional methods to provide uniform, thin films which possess utility in numerous electro... | 02/19/2008 |
| 7329723 | Thermal crystallization of polyester pellets in liquid A process for thermally crystallizing a polyester polymer by introducing pellets into a liquid medium having a temperature of at least 140° C. within a liquid medium zone and crystallizing the submerged pellets at or above the vapor pressure of the liquid medium wi... | 02/12/2008 |
| 7326353 | Methods for reclaiming developing solvents The present invention relates to an improved method for reclaiming and recycling developing solvents used in the production of flexographic printing plates. More specifically, the invention relates to reclaiming and/or recycling of the developing solvent through cen... | 02/05/2008 |
| 7321021 | Removing impurities from polythiophene Impurities are removed from polythiophene by mixing a composition comprising polythiophene, water and an organic liquid at a temperature at which the organic liquid dissolves the polythiophene; allowing an aqueous phase to separate from an organic phase and recoveri... | 01/22/2008 |
| 7307141 | Thermoresponsive sensor comprising a polymer solution Methods and apparatus for measuring and/or controlling the temperature on the surface or inside of micro chips are provided, including using thermally responsive polymers. ... | 12/11/2007 |
| 7291696 | Composition and associated method Provided is a fluorine substituted oligomeric or polymeric ester including the reaction product of a fluorine substituted acrylate or a fluorine substituted methacrylate; an unsaturated anhydride; and an alkyl acrylate or an alkyl methacrylate. Also provided is a me... | 11/06/2007 |
| 7276574 | Process for producing vinyl polymer The present invention provides a method for producing a vinyl polymer including the steps of polymerizing a vinyl monomer by atom transfer radical polymerization with a transition metal complex as a polymerization catalyst, and bringing the resultant vinyl polymer i... | 10/02/2007 |
| 7259231 | Extraction and fractionation of biopolymers and resins from plant materials A method for the extraction, separation, fractionation and purification of biopolymers from plant materials using supercritical and/or subcritical solvent extractions is disclosed. Specifically, the process can be used for the separation of resins and rubber from gu... | 08/21/2007 |
| 7250127 | Pelletized organopolysiloxane material The invention relates to a pelletized organopolysiloxane material, to a process for producing the pelletized material, and to the use of the pelletized organopolysiloxane material as an additive for thermoplastics. ... | 07/31/2007 |
| 7250486 | Method and apparatus for crystallizing polymer particles The present invention is a process and apparatus for conserving loss of heat while forming and crystallizing polymer particles in a liquid. The cooling liquid quenches the polymer during particle molding to facilitate shaping. The cooling liquid cools the polymer pa... | 07/31/2007 |
| 7247350 | Solvent-poor sol-gel-systems The invention relates to a method for the production of low solvent sol-gel systems, comprising the following steps: (a) hydrolysis or condensation of a silane and/or an alkoxide and/or several alkoxides of Al, Ce, Ga, Ge, Sn, Ti, Zr, Hf, V, Nb and Ta, (b) addition ... | 07/24/2007 |
| 7241855 | Method for the manufacture of polyesters A method is described for the manufacture of polyesters of aromatic dicarboxylic acids with aliphatic and/or cycloaliphatic dials, in which an aromatic dicarboxylic acid in the presence of a monocarboxylic acid or a mixture of a monocarboxylic acid present in a satu... | 07/10/2007 |
| 7226989 | Method of separating a polymer from a solvent A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising an upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents... | 06/05/2007 |
| 7220817 | Process for producing polyarylene sulfide A process for producing polyarylene sulfide includes: steps of reacting an aromatic dihalide compound and an alkaline metal compound in a polar organic solvent for polymerization under heating and cooling a system including the reaction mixture to recover particulat... | 05/22/2007 |
| 7217782 | Cooling of pellets from pet solid stating reactor with water Energy savings are realized during the commercial production of polyethylene terephthalate by partially cooling polyethylene terephthalate pellets exiting a solid stating reactor by contact with water, and using the residual heat stored in the pellets to vaporize as... | 05/15/2007 |
| 7217780 | Polyether ketone and method of producing the same There are disclosed, a polyether ketone having a primary particle size of 50 μm or less; and a method of producing a polyether ketone by a desalting polycondensation, which contains a step of conducting a polymerization reaction under a condition of deposition of t... | 05/15/2007 |
| 7214817 | Hydroxyalkyl (meth)acrylate and its production process The present invention provides: a high-quality hydroxyalkyl (meth)acrylate of which the alkylene glycol di(meth)acrylate content and the acid component content are both low; and its novel production process. The hydroxyalkyl (meth)acrylate, which has a content, in t... | 05/08/2007 |
| 7199163 | Method for removing volatile components from polymer compositions Method for continuously removing the unreacted butene-1, and optionally other volatile components, from a polymeric solution obtained by liquid phase (co)polymerization of butene-1, the method comprising the steps of: subjecting the polymeric solution to heating and... | 04/03/2007 |
| 7193005 | Radiation-curable aqueous dispersions Aqueous polymer dispersions comprising a) 50–70% by weight of polymer particles composed of at least two different (co)polymers having glass transition temperatures each above 50° C. and synthesized from at least 80% by weight of... | 03/20/2007 |
| 7192545 | Thermal crystallization of a molten polyester polymer in a fluid A process for crystallizing a polyester polymer by introducing a molten polyester polymer, such as a polyethylene terephthalate polymer, into a liquid medium at a liquid medium temperature greater than the Tg of the polyester polymer, such as at a tempera... | 03/20/2007 |
| 7189794 | Non-pilling polyester fibres The invention relates to a method for producing non-pilling polyester fibres, whereby polyethylene terephthalate is produced in the presence of organosilicon compounds of tetrahydrofurfuryl alcohol. Preferably, tetrakistetrahydrofurfuryloxysilane or tris[tetrahydrof... | 03/13/2007 |
| 7160980 | Polyketones Method of purifying a polymeric material of a type which includes (A) phenyl moieties; (B) carbonyl and/or sulphone moieties; and; (C) ether and/or thioether moieties. The method includes contacting the polymeric material with a solvent formulation which is at a tem... | 01/09/2007 |
| 7153927 | Process of continuously producing polyesters or copolyesters Process for producing polyesters and copolyesters, wherein a continuous esterification of dicarboxylic esters and diols or a continuous transesterification of dicarboxylic esters with diols is effected in “n” reaction pressure stages connected in series, the pre... | 12/26/2006 |
| 7153928 | Method for producing polyhydroxyalkanoate crystal The present invention provides a method for easily obtaining a biodegradable polyhydroxyalkanoate by a solvent extraction method. A method for producing a polyhydroxyalkanoate crystal comprises mixing a solution of a polyhydroxyalkanoate in a good solvent with a poo... | 12/26/2006 |
| 7150285 | Cleaning device for a hair removing apparatus A cleaning device for a hair removing apparatus such as a dry shaver has a basin that receives a shaver head and is supplied with a cleaning liquid for cleaning the head. A single pump is utilized for supplying the liquid from a tank to the basin. The tank is hermet... | 12/19/2006 |
| 7151158 | Method of preparing a poly(arylene ether), apparatus therefor, and poly(arylene ether) prepared thereby A method of precipitating a poly(arylene ether) includes combining a poly(arylene ether) solution with an antisolvent at a shear rate of greater than 50,000 sec−1. The high shear mixing conditions produce a poly(arylene ether) dispersion in which the po... | 12/19/2006 |
| 7148320 | Polymer purification Polymers derived from various monomers are purified by fractionalization of the crude polymers in a solvent/non solvent system via reverse precipitation. ... | 12/12/2006 |
| 7144931 | Method of manufacturing polymer particles A method of manufacturing polymer particles capable of increasing the easiness of handling of powder when the powder is collected and preventing the powder from adhering to the wall surface of a dryer and the outlet of the dryer from being clogged with the powder by... | 12/05/2006 |
| 7138455 | Acrylic polymer powder, acrylic sol and molding An acrylic polymer powder obtained by coagulating and drying a latex containing acrylic polymer particles, in which acrylic polymer powder, the average particle size of the powder is 5 to 10 μm, the percentage of void is 70% or less, and the integral void volume on... | 11/21/2006 |
| 7122619 | Method of separating a polymer from a solvent A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising an upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents... | 10/17/2006 |
