Polymerizing In The Presence Of A Specified Material Other Than Monomer Patents (Class 526/89)
Material contains transition metal or compound thereof (Class 526/90)
Material contains elemental alkali metal, hydride thereof, or alkali metal to carbon atom bond (li, na, k, rb, cs, fr) (Class 526/173)
Material contains metal atom bonded to a carbon atom (Class 526/183)
Material contains elemental metal (Class 526/191)
Material contains a heavy metal atom containing organic compound (Class 526/192)
Material contains organic compound having a phosphorus atom (Class 526/193)
Material contains si, te, se, or group viiia atom, e.g., he, ne, etc. (Class 526/194)
Material contains boron compound other than boron trihalide or non-metal organic complex of boron trihalide (Class 526/195)
Material contains polypeptide, e.g., protein, gelatin, etc. (Class 526/199)
Material contains carbohydrate, e.g., starch, sugar, etc. (Class 526/200)
Material contains previously formed normally solid polymer which is distinct from polymer to be formed and is a polymer formed from at least one ethylenic monomer (Class 526/201)
Material contains heterocyclic compound (Class 526/204)
Material contains halogenated hydrocarbon wherein at least one halogen atom is other than chlorine, and mixtures of water and a halogenated hydrocarbon one ethylenic monomer (Class 526/206)
Material contains water and a hydrocarbon (Class 526/207)
Material contains aldehyde or ketone or polymeric reaction product thereof, e.g., urea-formaldehyde, etc. (Class 526/208)
Material contains ether (Class 526/209)
Material contains alcohol or alcoholate (Class 526/210)
Material contains carboxylic acid, salt, ester, or anhydride thereof (Class 526/213)
Material contains organic nitrogen compound (Class 526/217)
Material contains inorganic heavy metal compound (Class 526/221)
Material contains organic sulfur compound (Class 526/222)
Material contains aluminum compound other than aluminum trihalide or nonmetallic organic complex of aluminum trihalide (Class 526/226)
Material contains peroxy group compound (-o-o-) (Class 526/227)
Material contains elemental phosphorus or inorganic phosphorus compound (Class 526/233)
Material contains sulfur or inorganic sulfur compound (Class 526/234)
Material contains free oxygen, air, or ozone (Class 526/235)
Material contains nitrogen compound (Class 526/236)
Material contains metal halide, boron halide or organic complexes thereof, hydrogen halide, elemental halogen, or compound containing only halogen atoms (Class 526/237)
  • Process for producing fluoropolymer
    Patent number: 7173098
    Abstract: The present invention has for its object to provide a method of producing fluoropolymers with high productivity under comparatively low temperature and low pressure conditions which are conducive to reduced cost of commercial-scale production equipment. The present invention is directed to a method of producing a fluoropolymer which comprises polymerizing a radical polymerizable monomer in a defined reaction-field, said radical polymerizable monomer comprising a fluorine-containing ethylenic monomer and said defined reaction-field being in supercriticality-expression state with a monomer density [?m]-monomer critical density [?0] ratio of [?m/?0] not less than 1.1.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: February 6, 2007
    Assignee: Daikin Industries, Ltd.
    Inventors: Mitsuo Tsukamoto, Kenji Otoi, Hideki Nakaya, Yoshiyuki Hiraga, Tomohisa Noda
  • Olefinic polymer and process for producing the same
    Patent number: 7157540
    Abstract: The olefinic polymer characterised in that the n-decane-soluble content thereof is 10% by weight or less and the content of a ligand having a cyclopentadienyl structure is 5 ppb by weight or less. The process for producing an olefinic polymer is a process of producing an olefinic polymer by (co)polymerizing olefins in a gas phase using a fluidized-bed reactor, the process comprising: a polymerization step of (co)polymerizing the olefins with allowing a saturated aliphatic hydrocarbon to exist in a concentration of 2 to 30 mol % in the fluidized-bed reactor and a ligand removing step involving a step of bringing the resulting (co)polymer into contact with a ligand-remover and a step of heating said (co)polymer which has been brought into contact with the ligand-remover.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: January 2, 2007
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Satoru Ohtani, Shinji Abe, Hiroto Nishida
  • Preparation of transition metal nanoparticles and surfaces modified with (CO)polymers synthesized by RAFT
    Patent number: 7138468
    Abstract: A new, facile, general one-phase method of generating thio-functionalized transition metal nanoparticles and surfaces modified by (co)polymers synthesized by the RAFT method is described. The method includes the stops of forming a (co)polymer in aqueous solution using the RAFT methodology, forming a colloidal transition metal precursor solution from an appropriate transition metal; adding the metal precursor solution or surface to the (co)polymer solution, adding a reducing agent into the solution to reduce the metal colloid in situ to produce the stabilized nanoparticles or surface, and isolating the stabilized nanoparticles or surface in a manner such that aggregation is minimized. The functionalized surfaces generated using these methods can further undergo planar surface modifications, such as functionalization with a variety of different chemical groups, expanding their utility and application.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: November 21, 2006
    Assignee: University of Southern Mississippi
    Inventors: Charles L. McCormick, III, Andrew B. Lowe, Brent S. Sumerlin
  • Method of producing thermoplastic fluoropolymers using alkyl sulfonate surfactants
    Patent number: 7122610
    Abstract: Nonfluorinated surfactants selected from C7–C20 linear 1-alkanesulfonates, 2-alkanesulfones, and 1,2-alkanedisulfones are particularly effective for stabilizing emulsions in preparing non-elastomeric fluoropolymers containing at least 71 wt % vinylidene fluoride and having at least a 2% crystalline polyvinylidene fluoride content. Processes for making such fluoropolymers using these surfactants, particularly in combination with one or both of a nonionic polymerization initiator and the use of mechanical coagulation to isolate the product, are also provided, as are fluoropolymers made thereby.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: October 17, 2006
    Assignee: Arkema Inc.
    Inventors: Roice Andrus Wille, Mehdi Durali, Lotfi Hedhli, Ramin Amin-Sanayei, John Schmidhauser
  • Fluorine-containing copolymer
    Patent number: 7105619
    Abstract: A fluorine-containing copolymer obtained by copolymerizing tetrafluoroethylene, hexafluoropropylene and perfluoro vinyl ether as component monomers, wherein a weight ratio of tetrafluoroethylene, hexafluoropropylene and perfluoro vinyl ether units constituting the fluorine-containing copolymer is 70 to 95: 5 to 20: 0 to 10, respectively; the fluorine-containing copolymer having: a melt flow rate of 30 (g/10 minutes) or more; a volatile content index of 0.2% by weight or less; and a stress relaxation modulus G(t) (unit: dyn/cm2) which satisfies the following formula at t=0.1 second when measured at a temperature of 310° C.: G(0.1)>7×106×X?1.62?3000 where X denotes the melt flow rate (unit: g/10 minutes). Also disclosed is an insulating material composed of the fluorine-containing copolymer and an insulated cable having a core conductor coated with the fluorine-containing copolymer.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: September 12, 2006
    Assignee: Daikin Industries, Ltd.
    Inventors: Hideki Kono, Takayuki Hirao, George Lin, Kazuyuki Fukuda
  • Synthesis method for polydimethylketene by friedel-craft cationic polymerization of dimethylketene
    Patent number: 7105615
    Abstract: The invention concerns a cationic catalyst system comprising an initiator (I), a catalyst (K) and a cocatalyst (CoK). The cocatalyst (CoK) is an agent releasing the active polymerizing center of its counter anion generated by the reaction between the catalyst (K) and the initiator (I). Said cocatalyst is characterized by the existence of a double bond electron-depleted by an electroattractive group. It is selected, for example, from the group consisting of the following complexing agents including o-chloranyl (3,4,5,6-tetrachloro-1,2-benzoquinone), p-chloranyl (2,3,5,6-tetrachloro-1,4-benzoquinone), nitrobenzene, trinitrobenzene, or tetracyanoethylene.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: September 12, 2006
    Assignee: Arkema France
    Inventors: Reinhard Linemann, Guillaume Le
  • Plastic optical fiber, optical fiber cable, optical fiber cable with plug, method for producing methyl methacrylate based polymer and method for producing plastic optical fiber
    Patent number: 7098281
    Abstract: This invention provides a process for manufacturing a methyl methacrylate polymer comprising the steps of feeding a monomer containing at least 80 wt % of methyl methacrylate and a radical polymerization initiator represented formula (III) to a reactor; polymerizing the material at a polymerization temperature of 110 to 160° C. under the conditions satisfying particular equations between an initiator concentration and a polymerization temperature; feeding a reaction mixture taken out from the reactor to a devolatilization step (feeding step); and separating and removing volatiles from the reaction mixture (devolatilization step).
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: August 29, 2006
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hirotoshi Mizota, Tomonari Murakami, Yoshihiro Uozu, Shigeaki Sasaki, Koji Ishizaka, Takeshi Kitayama, Tatsuyuki Takayanagi, Jun-ichiro Atarashi, Yasukazu Yoshida, Masaharu Yanai, Motomu Oh-Kita
  • Polymerization of vinylidene fluoride (VF) in a supercritical fluid medium
    Patent number: 7091288
    Abstract: Polymerization of fluoroolefin monomers proceeds in a supercritical carbon dioxide solvent at high monomer loading levels to provide a high molecular weight polymer with low polydispersity and/or a unimodal molecular weight distribution.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 15, 2006
    Assignee: Arkema Inc.
    Inventors: Sunggyu Lee, H. Bryan Lanterman, Abhay Sardesai, Jonathan Wenzel, Benjamin Marshall, Jeffrey Hsing-Gan Yen, Ramin Amin-Sanayei, Maria Moucharik
  • Organic porous material, process for manufacturing the same, and organic porous ion exchanger
    Patent number: 7078441
    Abstract: An organic porous material having a continuous pore structure, which comprises interconnected macropores and mesopores with a radius of 0.01 to 100 ?m in the walls of the macropores, having a total pore volume of 1 to 50 ml/g and having pore distribution curve characteristics wherein the value obtained by dividing the half-width of the pore distribution curve at the main peak by the radius at the main peak is 0.5 or less. The organic porous material is useful as an adsorbent having high physical strength and excelling in adsorption amount and adsorption speed, an ion exchanger excelling in durability against swelling and shrinkage, and a filler for chromatography exhibiting high separation capability.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: July 18, 2006
    Assignee: Organo Corporation
    Inventors: Hiroshi Inoue, Koji Yamanaka
  • Emulsifier free aqueous emulsion polymerization process for making fluoropolymers
    Patent number: 7074862
    Abstract: Emulsifier free fluoropolymer manufacturing method in which (a) a chain transfer agent, or a mixture of chain transfer agents are used wherein the chain transfer agents do not yield more than 0.4 weight % relative to the monomer feed of water soluble fluorinated compounds, or (b) a chain transfer agent or a mixture of chain transfer agents selected from alkanes, dialkyl ethers, hydrofluoroethers and/or hydrofluorocarbons.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: July 11, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Harald Kaspar, Klaus Hintzer, Greta Dewitte, Werner Schwertfeger
  • Aqueous ionomeric gels and products and methods related thereto
    Patent number: 7060166
    Abstract: An aqueous ionomer gel having a high viscosity, particularly a proton conducting ionomer, as well as to related products incorporating such gels. Such aqueous ionomer gels are suitable for suspending catalysts for formation of catalyst inks, which in turn are suitable for screen printing on a variety of surfaces. Representative surfaces are the electrode or membrane surfaces in an electrochemical fuel cell. Methods for making aqueous ionomer gels are also disclosed.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: June 13, 2006
    Assignee: Ballard Power Systems Inc.
    Inventors: Wesley Gervais, Michael V Lauritzen, Kristi M Zychowka, Lawrence A Vanderark, Kevin Michael Colbow
  • Preparation of aqueous styrene-butadiene polymer dispersions
    Patent number: 7060762
    Abstract: A process for preparing an aqueous styrene-butadiene polymer dispersion by free-radical aqueous emulsion polymerization of a monomer mixture M that comprises styrene, butadiene, and if desired up to 30% by weight, per 100% by weight of monomers, of ethylenically unsaturated comonomers other than styrene and butadiene; by a monomer feed technique that includes supplying to the polymerization reaction a regulator system containing, from 0.02 to 0.4% by weight of terpinolene and from 0.5 to 2% by weight of an organic compound S containing at least one SH group.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: June 13, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Schaedler, Lambertus Manders, Roland Ettl, Thomas Wirth
  • Catalyst composition and process therewith
    Patent number: 7049376
    Abstract: A composition that can be used as a catalyst is disclosed. The composition comprises, or is produced by combining, a titanium compound, a glycol, a phosphorus compound, and optionally water. Also disclosed is a process that can be used for producing a polyester. The process comprises contacting, in the presence of a catalyst composition, a carbonyl compound and an alcohol under a condition suitable for esterification, transesterification, or polymerization. The catalyst composition comprises, or is produced by combining, a titanium compound, a glycol, a phosphorus compound, and optionally water.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: May 23, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Jiwen F Duan
  • Emulsion type modifier for improving properties of pressure sensitive emulsion acrylic adhesives
    Patent number: 7041754
    Abstract: The present invention relates to an emulsion type modifier for improving properties of the pressure-sensitive emulsion acrylic adhesives. The emulsion type modifier comprises: (a) 15 to 35 parts per hundred of monomers of a diester of a dicarboxylic acid; (b) 15 to 35 parts per hundred of monomers of vinyl esters; (c) 35 to 65 parts per hundred of monomers of alkyl acrylates; based on the total weight of (a)+(b)+(c), and (d) 0.1 to 2.0 parts per hundred of an acetoacetoxy functional monomer; (e) 0.1 to 2.0 parts per hundred of a nonionic surfactant; and (f) 0.4 to 3.0 parts per hundred of an anionic surfactant. By adding the emulsion type modifier of the present invention, the steel adhesion, polyethylene (PE) adhesion, the loop tack and the holding power of the pressure-sensitive emulsion acrylic adhesives can be improved.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: May 9, 2006
    Assignee: Chief Investment Corp.
    Inventors: Bin-Yen Yang, Chi-Lin Kao, Pei-Ling Lee, Chao-Yo Lin
  • Catalyst and method for the production of polytetrahydrofuran
    Patent number: 7041752
    Abstract: Polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which is in the form of shaped catalyst bodies or catalyst particles having a volume of the individual shape of the body or particle of at least 0.05 mm3, preferably at least 0.2 mm3, in particular 1 mm3, and has at least one of the features a) and b): a) a pore radius distribution having at least one maximum in the pore radius range from 100 to 5000 ?, b) a pore volume of catalyst pores having radii of 200–3000 ? of greater than 0.05 cm3/g and/or a pore volume of pores having radii of 200–5000 ? of greater than 0.075 cm3/g and/or a pore volume of pores having radii of >200 ? of greater than 0.1 cm3/g.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: May 9, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Stephan Schlitter, Christoph Sigwart, Walter Dörflinger, Michael Hesse, Rolf-Hartmuth Fischer
  • Organometal catalyst compositions
    Patent number: 7041753
    Abstract: This invention provides oxide matrix compositions that can be utilized in catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. The oxide matrix composition comprises residual mineral components and an oxide precursor. The catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and an oxide matrix composition. Processes for producing the oxide matrix composition and the catalyst composition are also provided.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: May 9, 2006
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Joseph S. Shveima, James L. Smith, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • Olefinic polymer and process for producing the same
    Patent number: 7037998
    Abstract: The olefinic polymer characterised in that the n-decane-soluble content thereof is 10% by weight or less and the content of a ligand having a cyclopentadienyl structure is 5 ppb by weight or less. The process for producing an olefinic polymer is a process of producing an olefinic polymer by (co)polymerizing olefins in a gas phase using a fluidized-bed reactor, the process comprising: a polymerization step of (co)polymerizing the olefins with allowing a saturated aliphatic hydrocarbon to exist in a concentration of 2 to 30 mol % in the fluidized-bed reactor and a ligand removing step involving a step of bringing the resulting (co)polymer into contact with a ligand-remover and a step of heating said (co)polymer which has been brought into contact with the ligand-remover.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: May 2, 2006
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Satoru Ohtani, Shinji Abe, Hiroto Nishida
  • Resin compositions for polymer solid electrolytes as well as polymer solid electrolytes and polymer batteries using them
    Patent number: 7033706
    Abstract: Polymer solid electrolytes with good film strength, high ionic conductivity and excellent processability are provided, comprising a resin composition for polymer solid electrolytes containing 0.5–5.0% by weight of a curable resin having a specific structure (A), a plasticizer and (B) an electrolyte (C).
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: April 25, 2006
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Satoshi Mori, Minoru Yokoshima
  • Method for polymerizing ethylenically unsaturated monomers by degenerative iodine transfer
    Patent number: 7034085
    Abstract: The invention pertains to a method for making a block or gradient final (co)polymer comprising a step of radically polymerizing a mixture of ethylenically unsaturated monomers in the presence of a) a radical precursor and b) an iodine atom-containing intermediate polymer or a mixture of iodine atom-containing intermediate polymers, wherein the iodine atom-containing intermediate polymer comprises at least 50 mole % of methacrylate monomers and is obtainable from a polymerization of ethylenically unsaturated monomers.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: April 25, 2006
    Assignee: Nuplex Resins, B.V.
    Inventors: Dirk Emiel Paula Mestach, Richard Hendrikus Gerrit Brinkhuis, Petrus Johannes Maria David Elfrink
  • Continuous bioreactor process for the preparation of polyester cyclic oligomers
    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
  • Process for the manufacture of thermally stable PVDF
    Patent number: 7012122
    Abstract: The present invention relates to a process for the manufacture of PVDF homopolymer or copolymer by radical polymerization of vinylidene fluoride (VDF), and optionally of a comonomer, in aqueous dispersion and in the presence of a transfer agent, of a persulphate as radical initiator, optionally of a surface-active additive and optionally of a paraffin wax, in which: a) sodium acetate is added, either at the start of or during or after the polymerization, b) a potassium alkylsulphonate is optionally added after the polymerization, c) an aqueous PVDF dispersion is obtained, d) the PVDF is collected by atomizing the dispersion obtained in c) with air at a temperature of between 120 and 220° C., the aqueous dispersion obtained in c) not being washed with water before atomizing.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: March 14, 2006
    Assignee: Arkema
    Inventors: Patrick Kappler, Veronique Gauthe
  • Fluoropolymers resistant to stress cracking
    Patent number: 6984697
    Abstract: The invention provides a fluorothermoplastic composition comprising interpolymerized units derived from about 94 to about 97.5 mole percent (mol %) tetrafluoroethylene (TFE), about 2 to about 3 mol % perfluoro (propyl vinyl ether) (PPVE), and about 0.5 to about 3 mol % hexafluoropropylene (HFP). The invention also provides a fluorothermoplastic composition comprising interpolymerized units derived from about 94 to about 97 mol % TFE, about 0.75 to about 3 mol % PPVE, and about 1.5 to about 3.5 mol % HFP. These fluorothermoplastic compositions have a flex life that fits the equation: log(flex life cycles)?0.71+4.0*(MFI(?0.294)), a method of making fluorothermoplastic compositions, a method of improving stress crack resistance, and fluorothermoplastic articles.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: January 10, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas J. Blong, Lisa P. Chen, Ralph Kaulbach, Friedrich Kloos, Georg Burkard
  • Removable pressure-sensitive adhesive sheet
    Patent number: 6984413
    Abstract: A removable pressure-sensitive adhesive sheet is disclosed which, when used for fixing adherends thereto in work processing or the like, has such a degree of tackiness as not to peel off the adherends and which, after the work processing or the like, can be easily removed from the adherends without fouling them. The removable pressure-sensitive adhesive sheet comprises a pressure-sensitive adhesive layer constituted of a pressure-sensitive adhesive comprising a polymer in which the content of low-molecular components having a molecular weight of 105 or lower is 10% by weight or lower. The polymer constituting the pressure-sensitive adhesive may be an acrylic polymer obtained by polymerizing one or more monomers in liquid or supercritical carbon dioxide. The removable pressure-sensitive adhesive sheet can be used, e.g., as a pressure-sensitive adhesive sheet for semiconductor wafer processing.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: January 10, 2006
    Assignee: Nitto Denko Corporation
    Inventors: Takayuki Yamamoto, Tomohiro Taruno, Keisuke Watanabe, Takeshi Matsumura
  • Acrylic-halogenated polyolefin copolymer adhesion promoters
    Patent number: 6965000
    Abstract: The present invention is directed to a method for producing a copolymer and a copolymer product of the method. The copolymer is prepared by a controlled radical polymerization process, typically an atom transfer radical polymerization process, in which polymerizable alkene monomers are polymerized in the presence of a halogenated polyolefin macroinitiator. The copolymer product of this process is useful in a film-forming composition that adheres strongly to polyolefinic substrates and to which non-polyolefinic film-forming compositions strongly adhere. The copolymer can be applied to a substrate in an adhesion-promoting layer or can be incorporated into a film-forming composition, such as a primer, that contains additional resinous compounds.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: November 15, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Simion Coca, Brian K. Rearick, James B. O'Dwyer
  • Chromium support-agglomerate-transition metal polymerization catalysts and processes utilizing same
    Patent number: 6958375
    Abstract: The present invention is directed to a novel one-step method for forming a supported catalyst complex of high activity by substantially simultaneously contacting a bidentate or tridentate ligand forming compound, a transition metal compound and a chromium immobilized Lewis acid support-agglomerate. The catalyst can be formed prior to polymerization of olefins or within the polymerization reaction zone.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: October 25, 2005
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Keng-Yu Shih, Dean Alexander Denton, Rimantas Glemza
  • Inlet distribution device for upflow polymerization reactors
    Patent number: 6958376
    Abstract: A polymerization process and polymerization reactor are provided. For example, a polymerization process is described, including passing a feed stream including liquid and gas through a feed stream inlet disposed proximate an upflow polymerization reactor, passing the feed stream through a member configured to impart an angular velocity to the feed stream and entrain the liquid in the gas, and contacting the feed stream with a catalyst to polymerize the feed stream.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: October 25, 2005
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventor: Gregory P. Muldowney
  • Catalyst system
    Patent number: 6949614
    Abstract: A catalyst system comprising a metallocene, a cocatalyst, a support material and optionally a further organometallic compound is described. The catalyst system can advantageously be used for the polymerization of olefins. Here, the use of aluminoxanes such as methylaluminoxane (MAO) as cocatalyst is dispensed with and a high catalyst activity and good polymer morphology are nevertheless achieved.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: September 27, 2005
    Assignee: Basell Polyolefine GmbH
    Inventors: Jörg Schottek, Patricia Becker
  • Process for the gas-phase (co-)polymerization of olefins in a fluidized bed reactor
    Patent number: 6946530
    Abstract: The present invention relates to a process for the gas-phase (co-)polymerization of olefins in a fluidized bed reactor wherein fouling is prevented and/or flowability of polymer is improved thanks to the use of a process aid additive.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: September 20, 2005
    Assignee: BP Chemicals Limited
    Inventors: Alexandre Gallice, Vince Reiling, Jean-Loic Selo
  • Organic/inorganic hybrid hydrogel and manufacturing method therefor
    Patent number: 6943206
    Abstract: The present invention provides a novel organic/inorganic hybrid hydrogel which is superior in homogeneity, transparency, mechanical properties, and in swelling and shrinking properties, a manufacturing method therefor, and a dry body of the organic/inorganic hybrid hydrogel which is obtained by removing water from said hydrogel. The organic/inorganic hybrid hydrogel comprises a water soluble polymer (A), a water swelling clay mineral (B) which can be homogeneously dispersed in water, and water (C), and water (C) is included in a three-dimensional network formed by (A) and (B).
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: September 13, 2005
    Assignee: Kawamura Institute of Chemical Research
    Inventor: Kazutoshi Haraguchi
  • Catalyst for preparing polyester for toner
    Patent number: 6936393
    Abstract: A catalyst for preparing a polyester for a toner, comprising an inorganic tin(II) compound; a polyester resin composition comprising a polyester and the catalyst; and a toner comprising the polyester resin composition. The catalyst for preparing a polyester is suitably used for a toner which is used for developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing method, and the like.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: August 30, 2005
    Assignee: Kao Corporation
    Inventors: Takashi Kubo, Katsutoshi Aoki, Eiji Shirai, Masayuki Maruta
  • Method of making supported transition metal polymerization catalysts and compositions formed therefrom
    Patent number: 6927261
    Abstract: The present invention is directed to a novel one-step method for forming a supported catalyst complex of high activity by substantially simultaneously contacting a bidentate or tridentate ligand forming compound, a transition metal compound and a Lewis acid support-activator agglomerate. The catalyst can be formed prior to polymerization of olefins or within the polymerization reaction zone.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: August 9, 2005
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Keng-Yu Shih
  • Polymer formation in room temperature ionic liquids
    Patent number: 6924341
    Abstract: Methods and compositions for polymerization in ionic medium liquid at room temperature provide the benefit of allowing polymerization reactions to be carried out cheaply, and relatively quickly. The replacement of VOCs by these environmentally benign solvents has the further advantage of increased safety for chemical workers.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: August 2, 2005
    Assignee: The UAB Research Foundation
    Inventors: Jimmy W. Mays, Lujia Bu, Robin D. Rogers, Kunlun Hong, Hongwei Zhang
  • Non-stick coating and method of forming same
    Patent number: 6921787
    Abstract: Non-stick coatings for use on a flexible substrate include a fluoropolymer, an acrylic polymer, and a polyol and/or diol. The ratio of acrylic polymer to polyol and/or diol is between about 90:10 and about 10:90 by weight, preferably about 50:50. The ratio of acrylic polymer and polyol or diol to fluoropolymer is preferably about 100:60 by weight.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: July 26, 2005
    Assignee: Akzo Nobel Non-Stick Coatings
    Inventor: Thomas J. Bate
  • Catalyst component for addition polymerization, catalyst for addition polymerization, and process for producing addition polymer
    Patent number: 6914108
    Abstract: An electron-withdrawing group-containing metal compound (I) of an atom of the Group III to the Group XII or lanthanide series of the Periodic Table of the Elements, a catalyst component for addition polymerization composed of the compound (I), a catalyst for addition polymerization obtained by contacting the compound (I) with a specific compound (II) of metal of the Group III to the Group XIII or lanthanide series and optionally an organoaluminum compound (III), and a process for producing an addition polymer using the catalyst.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: July 5, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kazuo Takaoki, Tatsuya Miyatake
  • Catalyst composition and process therewith
    Patent number: 6914107
    Abstract: A composition that can be used as a catalyst is disclosed. The composition comprises, or is produced by combining, a titanium compound, a glycol, a phosphorus compound, and optionally water. Also disclosed is a process that can be used for producing a polyester. The process comprises contacting, in the presence of a catalyst composition, a carbonyl compound and an alcohol under a condition suitable for esterification, transesterification, or polymerization. The catalyst composition comprises, or is produced by combining, a titanium compound, a glycol, a phosphorus compound, and optionally water.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: July 5, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Jiwen F. Duan
  • Tubular polymerization reactors and polymers made therein
    Patent number: 6899852
    Abstract: Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm3 and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: May 31, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Jan Cyriel Donck
  • Process for producing polyolefin
    Patent number: 6891002
    Abstract: A process for producing a polyolefin according to the present invention comprises (co) polymerizing one or two or more ?-olefins in a vapor phase in a fluidized-bed reactor, wherein the concentration of (A) a saturated aliphatic hydrocarbon in the fluidized bed reactor is 1 mol % or more and at least one compound selected from (B) an aliphatic amide and (C) a nonionic surfactant constituted only of carbon, oxygen and hydrogen atoms is made to exist in the reactor. The present invention can provide a process for producing a polyolefin, the process ensuring that the prevention of clogging caused by the generation of sheet or block polymers and a high efficiency of the production of a polyolefin due to good catalytic activity can be accomplished at the same time and also having superb continuous productivity.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: May 10, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shinji Abe, Shotaro Matsuda, Satoru Ohtani, Hiroto Nishida, Michiharu Sakata, Tomohiro Arase
  • Hydrogenated polymer and process for producing the same
    Patent number: 6875827
    Abstract: The present invention relates to a hydrogenated polymer which is a hydrogenation product of a conjugated diene polymer having an average vinyl bond content of 20% by weight or more and less than 50% by weight and a weight average molecular weight of 60,000 to 600,000 to a degree such that 85% or more of the residual double bonds in the conjugated diene units are hydrogenated, and which has a molecular weight and a number of terminal methyl group carbons as measured by GPC/FTIR analysis satisfying relationship (1): Va?Vb?0.03Vc??(1) wherein Va, Vb and Vc represent the number of terminal methyl group carbon atoms per 1000 carbon atoms contained in a polymer whose molecular weight is twice the peak top molecular weight, half the peak top molecular weight, and the peak top molecular weight, respectively.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: April 5, 2005
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Masahiro Sasagawa, Shinichi Nakajima, Shigeki Takayama, Takasi Sato, Toshinori Shiraki
  • Cross-linkable polymer composition
    Patent number: 6872789
    Abstract: The invention pertains to a polymer obtainable from the steps: polymerizing a mixture, that is substantially free or organic solvents, of ethylenically unsaturated monomers which consist for at least 70% of methacrylates, and which comprises specific chain transfer agents, ?-methylstyrene dimer being preferred, to form a first polymer, aqueous emulsion polymerizing a mixture comprising ethylenically unsaturated monomers in the presence of the first polymer to form a dispersion of a water-insoluble second polymer, wherein these steps are preferably performed in the absence or the substantial absence of a surfactant.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: March 29, 2005
    Assignee: Akzo Nobel N.V.
    Inventors: Richard Hendrikus Gerrit Brinkhuis, Andreas Henricus Johannes Roelofs, Dirk Emiel Paula Mestach, Petrus Johannes Maria David Elfrink, Wincently Lambertus Stanislaw Pilaszek, Hendrik Hermanus Rikus van der Horst
  • Removable pressure-sensitive adhesive and adhesive sheet of the same
    Patent number: 6869678
    Abstract: A removable pressure-sensitive adhesive which, even when applied to metal sheets or to metallic members which have undergone a coating treatment, is inhibited from increasing in adhesive force with the lapse of time and can be easily removed therefrom and which has satisfactory weatherability and satisfactory pot life contains 100 parts by weight on a solid basis of an aqueous dispersion type acrylic copolymer obtained by polymerizing a monomer mixture in an aqueous medium in the presence of a nonionic surfactant and/or an anionic surfactant each having an ethylenic double bond and 0.1 to 3 parts by weight of a hindered-amine light stabilizer having a piperidine ring in which the nitrogen atom has a tertiary amine structure; and an adhesive sheet is produced with the adhesive.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: March 22, 2005
    Assignee: Nitto Denko Corporation
    Inventors: Takeshi Yamanaka, Shinetsu Itou, Kenichi Shibata, Takeshi Suto, Isamu Miyoshi
  • Catalyst modifiers and their use in the polymerization of olefin(s)
    Patent number: 6861483
    Abstract: The present invention relates to the use of thermally triggered compounds that when used with a polymerization catalyst in a polymerization process results in the controllable generation of one or more catalyst inhibitors that renders the polymerization catalyst substantially or completely inactive.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: March 1, 2005
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, Dick Alan Nagaki, Thomas Henry Peterson, David James Schreck
  • Process for preparing elastomeric ethylene-hexafluoropropylene copolymer
    Patent number: 6858763
    Abstract: The present invention relates to a process for preparing an elastomeric ethylene-hexafluoropropylene copolymer with excellent vulcanization properties, which comprises emulsion polymerizing ethylene, hexafluoropropylene and when in demand, a monomer copolymerizable therewith in a aqueous medium at a low temperature of ?20° C. to 40° C. using a radical polymerization initiator.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: February 22, 2005
    Assignee: Daikin Industries, Ltd.
    Inventors: Mitsuo Tsukamoto, Masao Otsuka, Mitsuhiro Otani, Tatsuya Morikawa, Hideya Saito
  • Process for the preparation of isoolefin copolymers
    Patent number: 6846885
    Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides or hafnium halides or mixtures thereof and organic nitro compounds, especially for the preparation of butyl rubbers, as well as isoolefin copolymers composed of isobutene, isoprene and, optionally, further monomers.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: January 25, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Langstein, Martin Bohnenpoll
  • Preparation of an aqueous copolymer solution
    Patent number: 6844410
    Abstract: The present invention provides a process for preparing aqueous copolymer solutions by polymerizing ethylenically unsaturated compounds in the presence of foam inhibitors.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: January 18, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Kathrin Michl, Matthias Gerst, Matthias Laubender, Dieter Faul, Hans-Jürgen Raubenheimer
  • Dispersions containing living radicals
    Patent number: 6841636
    Abstract: The present invention relates to a dispersion of polymer particles, the particle containing, on average, more than 1 living radicals each, the radicals not being chemically protected. The invention is also directed to a free radical polymerization process resulting in a dispersion containing polymer particles having on average one or more living radicals. The process involves carefully regulating the polymerization conditions to produce small size particles under monomer-starved conditions containing, on average, more than one living radical in every particle. These living polymer radicals can be further reacted to form polymers with a controlled architecture.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: January 11, 2005
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Yadunandan Dar, Smita Shah
  • Copolymers comprising low surface tension (meth) acrylates
    Patent number: 6841641
    Abstract: The present invention is directed to a copolymer that includes a first radically polymerizable low surface tension (meth)acrylate monomer and one or more other radically polymerizable ethylenically unsaturated monomers. The copolymer has a polydispersity index of less than 2.5. The present invention further includes a controlled radical polymerization method to make the above described low surface tension containing copolymers. The method includes the steps of adding a first radically polymerizable low surface tension (meth)acrylate monomer and one or more other radically polymerizable ethylenically unsaturated monomers to a solution containing a suitable atom transfer radical polymerization (ATRP) initiator.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: January 11, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Kurt G. Olson, Simion Coca, James B. O'Dwyer, Joanne H. Smith
  • Organic porous material, process for manufacturing the same, and organic porous ion exchanger
    Patent number: 6841580
    Abstract: An organic porous material having a continuous pore structure, which comprises interconnected macropores and mesopores with a radius of 0.01 to 100 ?m in the walls of the macropores, having a total pore volume of 1 to 50 ml/g and having pore distribution curve characteristics wherein the value obtained by dividing the half-width of the pore distribution curve at the main peak by the radius at the main peak is 0.5 or less. The organic porous material is useful as an adsorbent having high physical strength and excelling in adsorption amount and adsorption speed, an ion exchanger excelling in durability against swelling and shrinkage, and a filler for chromatography exhibiting high separation capability.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: January 11, 2005
    Assignee: Organo Corporation
    Inventors: Hiroshi Inoue, Koji Yamanaka
  • Cyanoacrylate compositions
    Patent number: 6835789
    Abstract: This invention relates to cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, certain accelerators to improve fixture speeds on certain substrates.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: December 28, 2004
    Assignee: Loctite (R&D) Limited
    Inventors: Brendan J. Kneafsey, Ruth A. Kelly, Fergal W. Tierney, David P. Birkett, Hanns R. Misiak, Kieran Mulcahy, Harry J. Woolfson
  • CYANOACRYLATE COMPOSITIONS
    Publication number: 20040260045
    Abstract: This invention relates to cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, certain accelerators to improve fixture speeds on certain substrates.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 23, 2004
    Applicant: LOCTITE (R&D) LTD.
    Inventors: Brendan J. Kneafsey, Ruth A. Kelly, Fergal W. Tierney, David P. Birkett, Hanns R. Misiak, Kieran Mulcahy, Harry J. Woolfson
  • TUBULAR POLYMERIZATION REACTORS AND POLYMERS MADE THEREIN
    Publication number: 20040247493
    Abstract: Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm3 and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
    Type: Application
    Filed: November 12, 2003
    Publication date: December 9, 2004
    Inventor: Jan Cyriel Donck