Patents Examined by David W. Wu
  • Production process of olefin polymer
    Patent number: 8410231
    Abstract: The present invention provides a highly active process for producing an olefin polymer, comprising: the step (I) of preliminarily polymerizing an olefin at 65° C.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: April 2, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yasutoyo Kawashima, Tomoaki Goto
  • Polymerization processes for broadened molecular weight distribution
    Patent number: 8410230
    Abstract: Provided are methods of producing polymers with broadened molecular weight and/or composition distribution in a continuous homogeneous polymerization system utilizing reactor temperature gradients, reactor polymer concentration gradients, monomer concentration gradients, catalyst concentration gradients, and combinations thereof in the polymerization reactor. Such methods are particularly suitable when utilizing metallocene catalysts and other single-site catalysts, which generally produce polymers with narrow molecular weight and composition distribution.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: April 2, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Gabor Kiss, Robert Patrick Reynolds, Jr., John W. Chu, Patrick Brant, James Richardson Lattner
  • Reactive urethane compound having ether bond, curable composition, and cured material
    Patent number: 8399569
    Abstract: An object of the present invention is to provide a reactive urethane compound having superior curability, adhesion to substrates, transparency, molecular flexibility, and mechanical properties, a curable composition containing the compound, and a cured material formed from the composition. An ethylenically-unsaturated-group containing reactive urethane compound of the present invention is represented by formula (I): wherein R1 and R2 are each independently a hydrogen atom or an alkylene group; R3 is a hydrogen atom, a alkyl group, or an aryl group; R4 is a single bond or an alkylene group; R5 is a hydrogen atom or a methyl group; R6 is an oxygen atom, a sulfur atom, or an imino group; n is 2 to 12; m is 1 to 300; and X is an aliphatic, aromatic or heterocyclic compound residue.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: March 19, 2013
    Assignee: Showa Denko K.K.
    Inventors: Katsumi Murofushi, Nobuaki Ishii, Miyuki Tomita, Yotaro Hattori, Yoshifumi Urakawa
  • Process for preparing an aqueous composite-particle dispersion
    Patent number: 8399579
    Abstract: A process for preparing stable aqueous dispersions of composite particles.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: March 19, 2013
    Assignee: BASF SE
    Inventors: Bas Lohmeijer, Harm Wiese, Ekkehard Jahns
  • Use of highly branched polymers in polymer dispersions for gloss colours
    Patent number: 8399554
    Abstract: The present invention relates to a method of producing coatings with increased gloss, to aqueous coating materials for such a method, and to the use of highly branched polymers as an additive for aqueous polymer dispersions for coating materials that lead to coatings having increased gloss.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: March 19, 2013
    Assignee: BASF SE
    Inventors: Sebastian Roller, Bernd Bruchmann, Rolf Dersch, Daniel Schoenfelder
  • Polymerisation reactor, polymerisation device, method for producing bio-degradeable polyester and uses
    Patent number: 8399602
    Abstract: The present invention relates to a polymerization reactor for continuous polymerization, the reactor being constructed in two stages and comprising a prepolymerization stage which is configured as a stirred vessel or as a loop-type bubble column and also a main polymerization stage which is configured as a tubular reactor. Furthermore, the present invention relates to a method for the production of biodegradable polyester, in particular polylactide, the reactor according to the invention being used. Likewise, the invention relates to a polymerization device which comprises further components in addition to the polymerization reactor.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: March 19, 2013
    Assignee: Uhde Inventa-Fischer GmbH
    Inventors: Rainer Hagen, Udo Muhlbauer
  • Composition for building protection applications based on alkylalkoxy-siloxanes having improved water repellency properties
    Patent number: 8394885
    Abstract: The present invention relates to a composition for imparting water repellency to porous mineral substrates and for producing a water repellency effect on the surface of the substrate and to a process for the preparation of such a composition, said composition being based on at least one silane oligomer, at least one hydrolysis or condensation catalyst, at least one fluorine-containing polymer, optionally water and/or at least one organic solvent, optionally at least one emulsifier and optionally further auxiliaries.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: March 12, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Manuel Friedel, Spomenko Ljesic, Sabine Giessler-Blank
  • Polypropylene for injection molding
    Patent number: 8394907
    Abstract: A polypropylene resin comprising a propylene polymer having the following features: a) melt flow rate (MFR) (ISO 1133) (230° C./2.16 kg) comprised between 120 g/10? and 400 g/10?; b) distribution of molecular weight Mw/Mn lower than 4; c) haze measured according to ASTM D 1003 comprised between 5% and 30%; and d) flexural modulus measured according ISO 178 after 48 h comprised between 1750 N/m2 and 2300 N/m2.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: March 12, 2013
    Assignee: Basell Polyolefine GmbH
    Inventors: Alexander Fuchs, Bernd Schuetz
  • Solid catalyst for propylene polymerization and a method for preparation of polypropylene using the same
    Patent number: 8394734
    Abstract: Provided are a solid catalyst for propylene polymerization which includes titanium, magnesium, halogen and an internal electron donor mixture of two or more compounds wherein the internal electron donor mixture includes at least one selected from the bicycloalkanes or bicycloalkenes and at least one selected from diethers and succinates, and a method for preparing propylene using the same. As disclosed, it is possible to prepare polypropylene having an excellent stereoregularity with a high production yield.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: March 12, 2013
    Assignee: Samsung Total Petrochemicals Co., Ltd.
    Inventors: Sang Yull Kim, Jin Woo Lee, Eun Il Kim, Joon Ryeo Park
  • Rubber composition for coating a steel wire material
    Patent number: 8389610
    Abstract: A rubber composition is provided for coating a steel wire material having initial adhesion strength and water resistant adhesion strength with respect to a steel wire material at or above conventional levels, the rubber composition being compounded with a compound derived from a natural product. Specifically a rubber composition for coating a steel wire material is compounded with from 0.05 to 10 parts by weight of a salt compound per 100 parts by weight of a diene rubber, the salt compound including a dicarboxylic acid derived from a natural product and an amine of a decarboxylated amino acid derived from a natural product.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: March 5, 2013
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Takashi Matsuda
  • Catalyst composition comprising shuttling agent for higher olefin multi-block copolymer formation
    Patent number: 8389655
    Abstract: A process for preparing polymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, by contacting propylene, 4-methyl-1-pentene, or other C4-8 ?-olefins and one or more copolymerizable comonomers, especially ethylene in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: March 5, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Daniel J. Arriola, Edmund M. Carnahan, David D. Devore, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
  • Non-aqueous pigment ink
    Patent number: 8389622
    Abstract: A non-aqueous pigment ink comprising a pigment, a pigment dispersant and a non-aqueous solvent, wherein the pigment dispersant is an acrylic polymer comprising, as constituent monomers, (M1) an alkyl (meth)acrylate having an alkyl group of 12 or more carbon atoms, (M2) a (meth)acrylic acid derivative having an amino group, and (M3) (meth)acrylic acid and/or a (meth)acrylic acid derivative having a carboxyl group, in which a combination of all the constituent monomers comprises from 8 to 15 mol % of the monomer (M2) and from 0.6 to 8 mol % of the monomer (M3), and the molar ratio (M2)/(M3) between the monomer (M2) and the monomer (M3) is within a range from 1.3 to 15.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: March 5, 2013
    Assignee: Riso Kagaku Corporation
    Inventors: Shunsuke Uozumi, Ayako Mochizuki
  • Solid titanium catalyst component for ethylene polymerization, ethylene polymerization catalyst and ethylene polymerization method
    Patent number: 8383541
    Abstract: Provided are a solid titanium catalyst component for ethylene polymerization which can polymerize ethylene at a high activity and which can provide an ethylene polymer having an excellent particle property, an ethylene polymerization catalyst and an ethylene polymerization method in which the catalyst is used. The solid titanium catalyst component (I) for ethylene polymerization according to the present invention is obtained by bringing a liquid magnesium compound (A) including a magnesium compound, an electron donor (a) having 1 to 5 carbon atoms and an electron donor (b) having 6 to 30 carbon atoms into contact with a liquid titanium compound (C) under the presence of an electron donor (B) and includes titanium, magnesium and a halogen. The ethylene polymerization catalyst of the present invention includes the component (I) and an organic metal compound catalyst component (II).
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: February 26, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuhisa Matsunaga, Hideki Yamamoto, Kunio Yamamoto, Tetsunori Shinozaki, Kiyoshi Takahashi
  • Chemically amplified positive resist composition
    Patent number: 8378016
    Abstract: The present invention provides a resin which generates an acid by irradiation and is a salt of an organic cation and an anionic polymer wherein the anionic polymer has no carbon-carbon unsaturated bond. The present invention further provides a chemically amplified resist composition comprising the same.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: February 19, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Nobuo Ando, Ichiki Takemoto, Isao Yoshida, Yukako Harada
  • Thermosetting adhesive compositions
    Patent number: 8378017
    Abstract: The invention is based on the discovery that adhesive compositions containing certain low-viscosity, mono-ethylenically unsaturated monomers have surprisingly good cure parameters, resulting in very little weight loss upon cure. Many of these monofunctional monomers used alone or in combination with other monofunctional monomers described herein have high glass transition temperatures when cured. Moreover, since these monomers are monofunctional the crosslink density of the adhesive composition does not increase (relative to multi-functional monomers), which in turns results in lower stress, lower modulus adhesive compositions. As such, these monomers are useful in a variety of thermoset adhesive compositions, such as for example, die attach adhesive compositions.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: February 19, 2013
    Assignee: Designer Molecules, Inc.
    Inventors: Stephen M. Dershem, Gina Hoang, Melin Lu
  • Thermoformed article with high stiffness and good optics
    Patent number: 8378045
    Abstract: Disclosed are thermoformed articles composed of propylene homopolymer containing a substituted phenylene aromatic diester. The thermoformed articles have high stiffness, good compression strength, excellent processability, and excellent optics.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: February 19, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: John Kaarto, Linfeng Chen, Tak W. Leung
  • Methods of making a opaquely dark colored molding composition
    Patent number: 8378021
    Abstract: The invention relates to subduedly colored (brown, gray, black, green), infrared reflecting PMMA compounds which can be applied to other plastic compounds as an IR barrier layer.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: February 19, 2013
    Assignee: Evonik Röhm GmbH
    Inventors: Klaus Schultes, Ernst Becker, Ursula Golchert, Elisabeth Clamer
  • System and method for catalyst activation
    Patent number: 8372771
    Abstract: A system and method for activating chromium catalyst, including: increasing temperature of a chromium catalyst at a first rate for a first period of time to a first temperature; and increasing temperature of the chromium catalyst at a second rate for a second period of time from the first temperature to a second temperature, wherein the first rate is greater than the second rate, and wherein the first period precedes the second period.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: February 12, 2013
    Assignee: Chevrton Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Catalytic process for preparing (meth)acrylic esters of N-hydroxyalkylated lactams
    Patent number: 8367788
    Abstract: A process for catalytically preparing (meth)acrylic esters of N-hydroxyalkylated lactams and to the use thereof.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: February 5, 2013
    Assignee: BASF SE
    Inventors: Hermann Bergmann, Frank Hoefer, Maximilian Angel
  • Process for improving the polymerization of ethylene and one or more optional comonomer(s) in a polymerization loop reactor
    Patent number: 8367783
    Abstract: The present invention relates to a process for improving the polymerization of ethylene and one or more optional co-monomer(s) in a polymerization loop reactor characterized in that said process comprises the step of controlling the hydrogen/monomer ratio along the path of the reactor by multiple, spatially separated, feeding of hydrogen along the path of the loop reactor. In particular, the invention provides a process for controlling, and preferably narrowing, the molecular weight distribution of the produced polymer particles. In another aspect, the invention relates to a polymerization loop reactor suitable for the polymerization process of ethylene and an optional olefin co-monomer, wherein the molecular weight distribution of the produced ethylene polymer can be controlled.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: February 5, 2013
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Daan Dewachter