Aldehyde Or Ketone Patents (Class 528/493)
  • Patent number: 10717021
    Abstract: Provided herein is a fractionator and related process for separating solubilized rubber from a co-solvent based miscella.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: July 21, 2020
    Assignee: Bridgestone Corporation
    Inventors: Robert W. White, Michael R. Hartzell
  • Patent number: 10626194
    Abstract: Provided herein are organic solvent-based processes for the removal of rubber from non-Hevea plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: April 21, 2020
    Assignee: Bridgestone Corporation
    Inventors: Yingyi Huang, Mark W. Smale, Robert White, Hiroshi Mouri, William M. Cole
  • Patent number: 10112123
    Abstract: Provided herein is a fractionator and related process for separating solubilized rubber from a co-solvent based miscella.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: October 30, 2018
    Assignee: Bridgestone Corporation
    Inventors: Robert White, Michael R. Hartzell
  • Patent number: 9718065
    Abstract: A process for trichome separation from plant matter deploys water slurry agitation and/or dry sieving to produce a mixture of solid trichomes and similar sized plant debris. The plant debris in each separate fraction is then removed by gravity filtration in a dense inert liquid, which is preferably a salt or brine solution. The desirable trichomes or trichome glands float on the dense liquid, while the undesirable vegetative matter sinks to the bottom of the brine containing vessel. The trichomes are readily removed and washed before further processing.
    Type: Grant
    Filed: February 28, 2015
    Date of Patent: August 1, 2017
    Assignee: TETRAGROW, LLC
    Inventor: David M Cilia
  • Patent number: 9328181
    Abstract: There is described a new disordered nanoporous crystalline form of syndiotactic polystyrene, characterized by a specific X-ray diffractrogram, the process for its preparation and various articles comprising this form of s-PS. This disordered nanoporous crystalline form exhibits empty crystalline cavities of nanometric sizes, and in this case performs the function of absorbing molecules with low molecular mass and is useful in particular as functionally active packaging for plant products.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: May 3, 2016
    Assignee: Nano Active Film S.R.L.
    Inventors: Alexandra Romina Albunia, Riccardo Bianchi, Luciano Di Maio, Maurizio Galimberti, Gaetano Guerra, Roberto Pantani, Stanislao Senatore
  • Patent number: 8865944
    Abstract: A process for purifying a polyol (per)fluoropolyether derivative [polyol (P)] from a mixture of hydroxyl (per)fluoropolyether derivatives [mixture (M)]. Such polyol (P) comprising one or more hydroxyl (per)fluoropolyether derivatives [PFPE (OH)] comprising at least one (per)fluoropolyoxyalkylene chain (chain Rf) and at least one end-group having formula (t3) —CF2CH2OCH2CH(OH)CH2OCH2CH(OH)CH2OH. Such mixture (M) comprising the polyol (P) and at least one PFPE (OH) different from the polyol (P) and comprising at least one chain Rf and at least one end-group selected from end-groups having formula (t1) —CF2CH2OH and formula (t2) —CF2CH2OCH2CH(OH)CH2OH.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: October 21, 2014
    Assignee: Solvay Specialty Polymers Italy S.p.A.
    Inventors: Graziano Giuseppe Vezzulli, Piero Gavezotti, Fabrizio Mutta, Claudio Adolfo Pietro Tonelli
  • Patent number: 8815965
    Abstract: Processes for recovering natural rubber from an aqueous natural rubber latex that contains extractables and one or more additives and that is essentially free of lignocellulosic plant material are described. Natural rubber in the latex is separated from the water. Preferably, the amount of non-rubber extractables in the natural rubber is reduced by one or more extraction steps yielding a dried natural rubber.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 26, 2014
    Assignee: Bridgestone Corporation
    Inventors: William M Cole, Georg G. A. Bohm, Walter Tomaszewski, Yingyi Huang
  • Patent number: 8691919
    Abstract: A simple procedure is provided by which the hydroxyl termini of poly(ethylene oxide) can be appended with functional groups to a useful extent by reaction and precipitation. The polymer is dissolved in warmed toluene, treated with an excess of organic base and somewhat less of an excess of a reactive acylating reagent, reacted for several hours, then precipitated in isopropanol so that the product can be isolated as a solid, and salt byproducts are washed away. This procedure enables functionalization of the polymer while not requiring laborious purification steps such as solvent-solvent extraction or dialysis to remove undesirable side products.
    Type: Grant
    Filed: October 1, 2011
    Date of Patent: April 8, 2014
    Assignee: Seeo, Inc.
    Inventor: Russell Clayton Pratt
  • Patent number: 8653223
    Abstract: Ketal compounds of the structure I and a method of preparation of the compound from polyols and oxocarboxylates, as well as uses thereof.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: February 18, 2014
    Assignee: Segetis, Inc.
    Inventors: Sergey Selifonov, Adam Edward Goetz, Feng Jing
  • Patent number: 8603681
    Abstract: The present invention relates to a novel porous film material which comprises at least one carbonaceous semimetal oxide phase, and to a process for production thereof. The invention also relates to the use of these porous film materials as a separator layer or for production of such separator layers in electrochemical cells, particularly in lithium cells and especially in lithium secondary cells.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: December 10, 2013
    Assignee: BASF SE
    Inventors: Nicole Hildebrandt, Arno Lange, Klaus Leitner, Phillip Hanefeld, Claudia Staudt
  • Patent number: 8580917
    Abstract: The invention relates to block polymers, for example, arborescent copolymer compounds, and to methods of making and purifying such compounds. In one embodiment, the invention relates to arborescent polymer compounds that contain one or more styrene polymeric blocks in combination with one or more isobutylene polymeric blocks. In another embodiment, the invention relates to methods for purifying arborescent polymer compounds that contain at least one styrene polymeric block in combination with at least one isobutylene polymeric block.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: November 12, 2013
    Assignee: The University of Akron
    Inventor: Judit E Puskas
  • Patent number: 8546455
    Abstract: The invention relates to a method of solubilizing expanded polystyrene (EPS), in which the EPS is brought into contact with at least one initial solvent, enabling the transition of the EPS from an expanded solid state to the gel state. The aforementioned gel is subsequently treated with at least one complementary solvent that is different from the initial solvent, enabling the solubilization thereof such as to produce a true solution. The invention also relates to the product thus obtained and to the use of said product.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: October 1, 2013
    Assignee: Eska
    Inventors: Franck Poutch, Pierre Dalet, José Alcorta
  • Patent number: 8461296
    Abstract: The invention relates to a process for preparing mechanically stabilized polyazole polymers. The process includes the steps of: a) producing a film comprising polyazoles with at least one amino group in a repeat unit, b) treating the film from step a) with a solution comprising (i) at least one acid and (ii) at least one stabilizing reagent, and c) performing the stabilization reaction in the membrane obtained in step directly or in a subsequent membrane processing step by heating to a temperature greater than 60° C. The stabilizing reagent contains at least one compound which has at least one aldehyde group and at least one hydroxyl group; or at least one hemiacetal group; or at least one acetal group. These polyazole polymer membranes have a high conductivity and a good mechanical stability and are suitable for applications in fuel cells.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: June 11, 2013
    Assignee: BASF SE
    Inventors: Friederike Fleischhaker, Oliver Gronwald, Jörg Belack
  • Patent number: 8435382
    Abstract: Storage-stable glyoxalated polyacrylamide polymers and high solids aqueous compositions formulated with them are described. These glyoxalated polyacrylamide compositions can be used as additives for papermaking, providing paper with good dry and temporary wet strength, and increasing papermaking de-watering rates.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: May 7, 2013
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Chen Lu, James Andrew Ward
  • Patent number: 8420702
    Abstract: Process for recycling a fiber reinforced polymer article, according to which the article, eventually cut in fragments, is dissolved in a solvent capable of dissolving the polymer but not the fibers and which is susceptible of forming an azeotrope with water, forming a solution; the fibers are recovered from the solution; the fibers are washed with solvent by putting them in the form of a slurry in the solvent and by agitating the slurry and/or by making the solvent circulate through it; the washed fibers are recovered from the slurry; and the recovered fibers are submitted to a stripping with steam in order to substantially remove the solvent.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: April 16, 2013
    Assignee: Solvay S.A.
    Inventors: Jacques Van Weynbergh, Stephane Noel
  • Patent number: 8383764
    Abstract: The invention relates to block polymers, for example, arborescent copolymer compounds, and to methods of making and purifying such compounds. In one embodiment, the invention relates to arborescent polymer compounds that contain one or more styrene polymeric blocks in combination with one or more isobutylene polymeric blocks. In another embodiment, the invention relates to methods for purifying arborescent polymer compounds that contain at least one styrene polymeric block in combination with at least one isobutylene polymeric block.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: February 26, 2013
    Assignee: The University of Akron
    Inventor: Judit E. Puskas
  • Patent number: 8304515
    Abstract: A process for the purification of a tetraol PFPE derivative [tetraol (T)] of formula (I): HO—CH2—CH(OH)—CH2—O—CH2—CF2—O—Rf—CF2—CH2O—CH2—CH(OH)—CH2OH, wherein Rf represents a fluoropolyoxyalkene chain (chain Rf), from a mixture (M) of hydroxyl (per)fluoropolyether derivatives, said mixture comprising said tetraol (T) and at least one hydroxyl (per)fluoropolyether [PFPE (OH)] comprising a chain Rf terminated with at least one end group of formula: —CF2CH2OH; —CF2CH2O—CH(OH)—CH2—O—CH2—CH(OH)—CH2OH; said process comprising: step 1: reacting the mixture (M) with ketones and/or aldehydes so as to selectively protect couples of hydroxyl groups on vicinal carbon atoms by forming corresponding cyclic ketal/acetal derivatives, so as to yield a protected mixture (P); step 2: reacting residual hydroxyl groups of the mixture (P) with suitable functionalizing agents enabling substantial volatility modification, so as to obtain a functionalized protected mixture (Pf); step 3: fractional distillation of the mixture (Pf) so a
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: November 6, 2012
    Assignee: Solvay Solexis S.p.A.
    Inventors: Claudio Tonelli, Graziano Giuseppe Vezzulli, Rosaldo Picozzi, Piero Gavezotti
  • Patent number: 8288506
    Abstract: Disclosed is a method of manufacturing a conductive coating film having superior chemical resistance or solvent resistance and durability by chemically bonding a resin having an amine group (—NH2) with carbon nanotubes having a carboxyl group (—COOH). The conductive material having high bondability with carbon nanotubes and superior electrical properties includes carbon nanotubes uniformly contained therein, and thus has appropriate surface resistivity, and thereby can be used for antistatic, electrostatic dissipation and electromagnetic shielding purposes and in transparent or opaque electrodes depending on the resistivity value.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: October 16, 2012
    Assignee: Kolon Industries, Inc.
    Inventors: Jeong Han Kim, Ji Sung Kim, Ki Nam Kwak, Sang Min Song, Chung Seock Kang
  • Patent number: 8183336
    Abstract: In a process for producing a poly(arylene sulfide) by polymerizing a sulfur source and a dihalo-aromatic compound in the presence of an alkali metal hydroxide in an organic amide solvent, the production process comprises washing a polymer obtained by the polymerization with a hydrophilic organic solvent containing water in a proportion of 1 to 30% by weight, thereby collecting a purified polymer, the content of nitrogen contained in an extract extracted by a mixed solvent containing 40% by weight of acetonitrile and 60% by weight of water from the purified polymer is at most 50 ppm on the basis of the weight of the polymer, and a poly(arylene sulfide), the content of nitrogen contained in an extract extracted by a mixed solvent containing 40% by weight of acetonitrile and 60% by weight of water from the purified polymer is at most 50 ppm on the basis of the weight of the polymer.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: May 22, 2012
    Assignee: Kureha Corporation
    Inventors: Hiroyuki Sato, Koichi Suzuki, Hirohito Kawama
  • Patent number: 8138232
    Abstract: The invention relates to a method for recycling plastic materials which contain at least two polymers, copolymers or blends thereof based on polystyrene. The plastic material is thereby mixed with a solvent for the polymers, copolymers or blends. Subsequently a precipitation is effected by addition of a corresponding precipitant so that then the gelatinous precipitation product can be separated from the further components of the plastic material. The method is used for recycling of any plastic materials, in particular of plastic materials from electronic scrap processing and from shredder light fractions.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: March 20, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Andreas Maeurer, Martin Schlummer, Otto Beck
  • Patent number: 8088863
    Abstract: An organic-solvent dispersion containing fine polysilsesquioxane particles stably dispersed therein, which is obtained by adjusting the pH of an aqueous dispersion of fine polysilsesquioxane particles to 2 to 9, subsequently adding an organic solvent thereto, and then removing the water from the system; and an aqueous dispersion of fine polysilsesquioxane particles having an appropriate average particle diameter, which is obtained by adjusting the amount of a base catalyst to be used so as to be in a specific range. The process for producing an aqueous dispersion of fine polysilsesquioxane particles having a pH of 2 to 9 with an organic solvent.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: January 3, 2012
    Assignee: Konishi Chemical Ind. Co., Ltd.
    Inventors: Chenghuan Ma, Masamichi Yamamoto, Fumio Oi
  • Patent number: 8076447
    Abstract: A poly(arylene sulfide) having properties that a melt viscosity is 1 to 3,000 Pa·s as measured under conditions of a temperature of 310° C. and a shear rate of 1,216 sec?1, a pH is 7.0 to 12.0 as measured in a mixed solvent of water/acetone (volume ratio=2/1), a crystallization temperature is at most 220° C. as measured in the course of lowing the temperature of the polymer at a rate of 10° C./min from a molten state, and a whiteness degree is at least 70 as measured in the form of a melt molded or formed product, and a production process thereof.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: December 13, 2011
    Assignee: Kureha Corporation
    Inventors: Hiroyuki Sato, Koichi Suzuki, Hirohito Kawama
  • Patent number: 7932346
    Abstract: A novel process is used to prepare synthetic rubbers (B) which feature very narrow molecular weight distribution and a correspondingly low value for the polydispersity index. The preparation process encompasses the treatment of a synthetic rubber with ultrasound, where the resultant synthetic rubber (B) has a lower weight-average molecular weight (Mw) than the synthetic rubber (A) used. The resultant synthetic rubbers (B) have excellent suitability for processing via extruder processes or injection-molding processes.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: April 26, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventors: Lothar Reif, Stephen Pask
  • Patent number: 7928184
    Abstract: The present invention provides a method of manufacturing a stabilized polyacetal resin, comprising the step of applying a heat treatment to a polyacetal resin having an unstable terminal group in the presence of an unstable terminal group decomposer selected from the following Group I, Group II and Group III, thereby decreasing the unstable terminal group: unstable terminal group decomposer of Group I: (I) a quaternary ammonium salt of an acidic cyclic amide compound, unstable terminal group decomposer of Group II: (II) a quaternary ammonium salt of a polycarboxylic acid intramolecularly having four or more carboxyl groups and/or a quaternary ammonium salt of an aminocarboxylic acid intramolecularly having one or more carboxyl group(s), unstable terminal group decomposer of Group III: (III) a quaternary ammonium salt, wherein a compound providing a counter-anion of a quaternary ammonium salt is at least one selected from the group consisting of the following (i) to (v): (i) a carbonic acid monoester
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: April 19, 2011
    Assignee: Polyplastics Co., Ltd.
    Inventors: Hatsuhiko Harashina, Hiroaki Nakao
  • Patent number: 7893195
    Abstract: Method for recovering a polymer from a liquid medium (1) substantially containing the polymer and a solvent for the latter, wherein: (a) this liquid medium (1) is injected into a reactor (2) containing a stirred substantially monophase liquid mixture comprising a major fraction by weight of a non-solvent and a minor fraction by weight of a solvent, the mixture having a composition and temperature such that the polymer precipitates therefrom progressively; (b) the polymer is recovered in the form of particles in suspension (5) in a liquid rich in non-solvent; (c) the polymer particles (9) are separated from the liquid.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: February 22, 2011
    Assignee: SOLVAY (Societe Anonyme)
    Inventors: Eric Fassiau, Bernard Vandenhende, Jean-Raphael Caille, Jean-Christophe Lepers
  • Publication number: 20110021743
    Abstract: 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 guayule shrub (Parthenium argentatum), and other rubber and/or resin containing plant materials, using supercritical solvent extraction, for example supercritical carbon dioxide extraction. Additionally, polar and/or non-polar co-solvents can be used with supercritical carbon dioxide to enhance the selective extraction of resins and rubbers from the shrub.
    Type: Application
    Filed: October 4, 2010
    Publication date: January 27, 2011
    Applicant: YULEX CORPORATION
    Inventors: Katrina Cornish, Jeffrey A. Martin, Rodger T. Marentis
  • Publication number: 20110003968
    Abstract: A process for the purification of a tetraol PFPE derivative [tetraol (T)] of formula (I): HO—CH2—CH(OH)—CH2—O—CH2—CF2—O—Rf—CF2—CH2O—CH2—CH(OH)—CH2OH, wherein Rf represents a fluoropolyoxyalkene chain (chain Rf), from a mixture (M) of hydroxyl (per)fluoropolyether derivatives, said mixture comprising said tetraol (T) and at least one hydroxyl (per)fluoropolyether [PFPE (OH)] comprising a chain Rf terminated with at least one end group of formula: —CF2CH2OH; —CF2CH2O—CH(OH)—CH2—O—CH2—CH(OH)—CH2OH; said process comprising: step 1: reacting the mixture (M) with ketones and/or aldehydes so as to selectively protect couples of hydroxyl groups on vicinal carbon atoms by forming corresponding cyclic ketal/acetal derivatives, so as to yield a protected mixture (P); step 2: reacting residual hydroxyl groups of the mixture (P) with suitable functionalizing agents enabling substantial volatility modification, so as to obtain a functionalized protected mixture (Pf); step 3: fractional distillation of the mixture (Pf) so a
    Type: Application
    Filed: March 13, 2009
    Publication date: January 6, 2011
    Applicant: SOLVAY SOLEXIS S.P.A.
    Inventors: Claudio Tonelli, Graziano Giuseppe Vezzulli, Rosaldo Picozzi, Piero Gavezotti
  • Publication number: 20100311943
    Abstract: The invention relates to a method enabling the ambient-temperature spinning of ligning originating from Alcell- and Organosolv-type extraction processes. The invention also relates to a method and device for the ambient-temperature production of lignin fibres of micro- and nanometric diameter, by means of electrospinning and co-electrospinning. The resulting fibres can be single strand (electrospinning) and hollow or coaxial (co-electrospinning) fibres. The lignin fibres are transformed into carbon nanofibres after a suitable heat treatment.
    Type: Application
    Filed: November 25, 2008
    Publication date: December 9, 2010
    Inventors: Manuel Lallave Rivas, Thomas Cordero Alcantara, Jose Rodriquez Mirasol, Ignacio Gonzales Loscertales, Antonio Barrero Ripoll
  • Patent number: 7754848
    Abstract: In a process for producing a poly(arylene sulfide) by polymerizing a sulfur source and a dihalo-aromatic compound in the presence of an alkali metal hydroxide in an organic amide solvent, the production process comprises washing a polymer obtained by the polymerization with a hydrophilic organic solvent containing water in a proportion of 1 to 30% by weight, thereby collecting a purified polymer, the content of nitrogen contained in an extract extracted by a mixed solvent containing 40% by weight of acetonitrile and 60% by weight of water from the purified polymer is at most 50 ppm on the basis of the weight of the polymer, and a poly(arylene sulfide), the content of nitrogen contained in an extract extracted by a mixed solvent containing 40% by weight of acetonitrile and 60% by weight of water from the purified polymer is at most 50 ppm on the basis of the weight of the polymer.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: July 13, 2010
    Assignee: Kureha Corporation
    Inventors: Hiroyuki Sato, Koichi Suzuki, Hirohito Kawama
  • Patent number: 7655748
    Abstract: A poly(arylene sulfide) having properties that a melt viscosity is 1 to 3,000 Pa·s as measured under conditions of a temperature of 310° C. and a shear rate of 1,216 sec?1, a pH is 7.0 to 12.0 as measured in a mixed solvent of water/acetone (volume ratio=2/1), a crystallization temperature is at most 220° C. as measured in the course of lowing the temperature of the polymer at a rate of 10° C./min from a molten state, and a whiteness degree is at least 70 as measured in the form of a melt molded or formed product, and a production process thereof.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: February 2, 2010
    Assignee: Kureha Corporation
    Inventors: Hiroyuki Sato, Koichi Suzuki, Hirohito Kawama
  • Patent number: 7638597
    Abstract: A process to remove metal contaminants from a hydrocarbon solution of polyethylene is disclosed. The process comprises adding a primary alcohol and a ?-diketone to a solution of polyethylene at a temperature within the range of 120° C. to 300° C. and contacting the solution with basic alumina. The process removes metal contaminants and minimizes degradation and condensation products, which can have a detrimental effect on polyethylene properties. The process provides polyethylene with low metal residues and good properties.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: December 29, 2009
    Assignee: Equistar Chemicals, LP
    Inventors: Bradley P. Etherton, Marvin R. Appel
  • Patent number: 7569658
    Abstract: Process for the solvent treatment of a plastic, by dissolving the plastic with a solvent and with at least one phase separation agent compatible with the solvent to form a solution, precipitating the plastic by contacting the solution with at least one non-solvent so as to obtain a solvent/non solvent mixture containing precipitated plastic particles, and substantially eliminating the solvent from the mixture and recovering solid plastic particles. After dissolution but before substantially eliminating the solvent a stripping takes place during which at least a substantial portion of the PSA is removed from the solution or from the mixture using a stripping composition.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: August 4, 2009
    Assignee: Solvay (Societe Anonyme)
    Inventors: Bernard Vandenhende, Eric Fassiau
  • Patent number: 7491791
    Abstract: A method for treating polytetrafluoroethylene (PTFE) in its reactor latex form to produce a dry submicron PTFE powder that remains stable without rheology modifiers, surfactants, wetting agents, pH adjusters or other stabilizing additives. Reactor latex PTFE formed during an emulsion polymerization process can be irradiated, with an electron beam or gamma rays, during or after the polymerization to form a product where the dry submicron PTFE powder is free-flowing, tends not to self-agglomerate and tends not to dust into the air upon handling so that the PTFE is readily dispersible when placed in a desired application system or medium.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: February 17, 2009
    Assignee: Shamrock Technologies Inc.
    Inventors: Charles A. Cody, William Neuberg, Manshi Sui, Youssef Awad, Paul Carey
  • Patent number: 7459520
    Abstract: A poly(arylene ether) produced by 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 poly(arylene ether) solid contains reduced amounts of undesirably fine particles.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: December 2, 2008
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventor: Hugo Gerard Eduard Ingelbrecht
  • Patent number: 7439318
    Abstract: An analytical technique for the accurate and precise measurement of trace water in chemical reagents, comprising the steps of combining a chemical reagent comprising ?5 ppm water, with hexafluoroacetone (HFA), to form a sample mixture comprising at least the chemical reagent and a water derivative of hexafluoroacetone; and measuring the concentration of the water derivative of hexafluoroacetone by gas chromatography.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: October 21, 2008
    Assignee: Advanced Technology Materials, Inc.
    Inventors: Alexander S. Borovik, Ziyun Wang, Chongying Xu, Thomas H. Baum
  • Patent number: 7378266
    Abstract: Improved processes for extracting polyhydroxyalkanoate from a biomass containing the polyhydroxyalkanoate including the steps of: combining the biomass containing the polyhydroxyalkanoate with a solvent selected from lower chain ketones, and mixtures thereof to form a biomass liquor wherein the biomass liquor comprises less than about 25% water; mixing the biomass liquor for from about 10 to about 300 minutes at a temperature in the range of from about 70° C. to about 120° C.; separating the polyhydroxyalkanoate from the biomass liquor to form a PHA-enriched liquor, wherein the separating occurs at a temperature of at least about 40° C.; mixing the PHA-enriched liquor with water to form precipitated polyhydroxyalkanoate and an impure solvent liquor, wherein the water is mixed with the PHA-enriched liquor in the ratio of from at least about 0.4-1 parts of water to one part solvent; and recovering the precipitated polyhydroxyalkanoate from the impure solvent liquor.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 27, 2008
    Assignee: Meredian, Inc.
    Inventors: Karunakaran Narasimhan, Angella Christine Cearley, Michael Steven Gibson, Stanley James Welling
  • Patent number: 7259231
    Abstract: 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 guayule shrub (Parthenium argentatum), and other rubber and/or resin containing plant materials, using supercritical solvent extraction, for example supercritical carbon dioxide extraction. Additionally, polar and/or non-polar co-solvents can be used with supercritical carbon dioxide to enhance the selective extraction of resins and rubbers from the shrub.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: August 21, 2007
    Assignee: Yulex Corporation
    Inventors: Katrina Cornish, Jeffrey A. Martin, Rodger T. Marentis, Sebastian Plamthottam
  • Patent number: 7189795
    Abstract: A poly(arylene ether) polymer includes polymer repeat units of the following structure: —(O—Ar1—O—Ar2)m—(O—Ar3—O—Ar4)n— where Ar1, Ar2, Ar3, and Ar4 are identical or different aryl radicals, m is 0.05 to 0.95, n is 1-m, and at least one of the aryl radicals is grafted to at least one hydroxyalkyl group, such as 2-undecanol. The polymer is especially useful in electrically conductive adhesives.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: March 13, 2007
    Inventors: William Franklin Burgoyne, Jr., Ching-Ping Wong, Silvia Liong
  • Patent number: 7183372
    Abstract: A process for preparing ketone-formaldehyde resins, especially acetophenone- and cyclohexanone-formaldehyde resins, having a low water content and high thermal stability and yellowing resistance, and a process for their production and their use.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: February 27, 2007
    Assignee: Degussa AG
    Inventors: Werner Andrejewski, Andreas Wenning, Patrick Glöckner
  • Patent number: 7179878
    Abstract: Poly(arylene ether) polymers are provided having polymer repeat units of the following structure: wherein Ar1, Ar2, Ar3, and Ar4 are identical or different aryl radicals, m is 0 to 1, n is 1-m, and at least one of G1, G2, G3, G4, G5, G6, G7 and G8 is a hydroxyalkyl furan group. Thin films of the polymer and methods of making the polymer are also provided.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: February 20, 2007
    Inventors: William Franklin Burgoyne, Jr., Christine Peck Kretz
  • Patent number: 7151158
    Abstract: 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 poly(arylene ether) solid contains reduced amounts of undesirably fine particles.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: December 19, 2006
    Assignee: General Electric Company
    Inventor: Hugo Gerard Eduard Ingelbrecht
  • Patent number: 7148320
    Abstract: Polymers derived from various monomers are purified by fractionalization of the crude polymers in a solvent/non solvent system via reverse precipitation.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: December 12, 2006
    Assignee: Dupont Electronic Polymers L.P.
    Inventors: Michael T. Sheehan, James R. Sounik
  • Patent number: 7094867
    Abstract: A polymerizate slurry obtained through a reaction of an alkali sulfide source and an aromatic dihalide compound in an organic polar solvent and comprising polyarylene sulfide particles, a by-produced alkali metal salt and the polar organic solvent, is continuously contacted countercurrently with a washing liquid, thereby continuously and efficiently recovering washed polyarylene sulfide particles. Furthermore, the by-produced alkali metal salt is removed, and the polar organic solvent is recovered, efficiently.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: August 22, 2006
    Assignee: Kureha Corporation
    Inventors: Michihisa Miyahara, Norio Saitou, Mitsuhiro Matsuzaki
  • Patent number: 7049394
    Abstract: The present invention provides a method for producing a free flowing and/or non clumping resin that includes prior to drying, shrinking the resin under agitation. In one variant of the invention, the is a resin used in solid phase synthesis of peptides. In another aspect the invention provides a process of making a peptide using the free flowing resin described herein, and a polypeptide made using the process. Various therapeutics are then be made using the polypepdite.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: May 23, 2006
    Assignee: Rohm and Haas Company
    Inventors: John Joseph Maikner, Marlin Kenneth Kinzey, James Charles Bohling
  • Patent number: 7041780
    Abstract: Methods to prepare a poly(arylene ether) and poly(alkenyl aromatic) polymeric material having reduced levels of particulate impurities are described. The polymeric material prepared is suitable for use in data storage media applications.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: May 9, 2006
    Assignee: General Electric
    Inventors: Paul W. Buckley, Jiawen Dong, Mark H. Giammattei, Hua Guo, Robert John Hossan, Christian Lietzau, Norberto Silvi
  • Patent number: 7041772
    Abstract: The present invention discloses a process for producing a benzoxazine resin which comprises the steps of reacting a phenol compound, an aldehyde compound and a primary amine in the presence of an organic solvent to synthesize a benzoxazine resin and removing generated condensation water and the organic solvent from a system under heating and a reduced pressure, wherein a pressure in the reaction system at the time of removal is set to 260 mmHg or higher.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: May 9, 2006
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Teruki Aizawa, Yasuyuki Hirai, Syunichi Numata
  • Patent number: 7026433
    Abstract: A continuous process for the process for the enzyme-catalyzed preparation of cyclic ester oligomers from linear ester oligomers. The process may use a linear or recirculating reactor.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: April 11, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward G. Brugel, Robert DiCosimo
  • Patent number: 6979720
    Abstract: Enzymes which are capable of catalyzing esterifications and/or transesterifications such as selected lipases and esterases can, under specified conditions, convert certain lower linear oligomers of polyesters to their cyclic ester oligomers in quantities greater than would be predicted by thermodynamic calculation or prior art methods. The cyclic ester oligomers are useful for the production of higher molecular weight linear polyesters.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: December 27, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward G. Brugel, Robert Di Cosimo
  • Patent number: 6936685
    Abstract: The invention relates to a method for isolating polyorganosiloxanes from an aqueous dispersion, wherein the polyorganosiloxanes are separated from water in a dissolved form with the aid of an extraction agent.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: August 30, 2005
    Assignee: Wacker-Chemie GmbH
    Inventors: Jochen Ebenhoch, Thomas Köhler, Hans Wintrich
  • Patent number: 6906168
    Abstract: Methods of reducing the amount of undesirable by-products in the production of polymers are disclosed. The resulting polyetherimides have lower polydispersivity and enhanced thermomechanical properties. In some embodiments, cyclic and low molecular weight linear oligomers are also obtained.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: June 14, 2005
    Assignee: General Electric Company
    Inventors: Farid Fouad Khouri, Paul Edward Howson