Patents Examined by David Wu
  • Patent number: 8829105
    Abstract: A low z-average molecular weight, high softening point polystyrene resin having a narrow molecular weight distribution, as well as methods of making and using the same, are provided. The use of an inert solvent and/or the order of addition of reactants during polymerization may contribute to the unique properties of the final homopolymeric resin. The polystyrene resin can be partially or fully hydrogenated and may have particular use as a tackifying agent in a variety of hot melt adhesive and rubber compositions.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: September 9, 2014
    Assignee: Eastman Chemical Company
    Inventors: Wei Min Cheng, Puthenkovilakom Rajesh Raja, George Joseph Kutsek, John B. Penn
  • Patent number: 8735278
    Abstract: The present disclosure is directed to a method of manufacturing an interconnect structure in which a low-k dielectric layer is formed over a semiconductor substrate followed by formation of a copper or copper alloy layer over the low-k dielectric layer. The copper or copper alloy layer is patterned and etched to form a copper body having recesses, which are then filled with a low-k dielectric material. The method allows for formation of a damascene structures without encountering the various problems presented by non-planar features and by porus low-K dielectric damage.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: May 27, 2014
    Assignee: Taiwan Semiconductor Manufactring Co., Ltd.
    Inventors: Ming Han Lee, Hai-Ching Chen, Hsiang-Huan Lee, Tien-I Bao, Chi-Lin Teng
  • Patent number: 8188202
    Abstract: A polymer comprising a unit represented by the following formula (1); and a process for producing the polymer comprising the step of polymerizing a diene compound such as 9,9-diallylfluorene in the presence of a polymerization catalyst formed by contacting a nickel compound with an organoaluminum compound and/or a boron compound:
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: May 29, 2012
    Assignees: Sumitomo Chemical Company, Limited, Tokyo Institute of Technology
    Inventors: Kohtaro Osakada, Daisuke Takeuchi, Yusuke Fukuda, Osamu Ihata, Hiroshi Kuribayashi
  • Patent number: 8173733
    Abstract: A polyolefin wax-containing aqueous resin composition that can provide excellent properties without the use of a surfactant is provided. The aqueous resin composition is obtained by heating and dissolving 100 parts by mass of a carboxyl group-containing polyolefin wax in the presence of 15 to 67 parts by mass of a compound that satisfies formula (1) shown below, and 90 to 380 parts by mass of water, and then dispersing this with a basic compound that has been added at a ratio of 1 to 4 chemical equivalents per carboxyl group of the carboxyl group-containing polyolefin wax. CmH2m+1—(OCH2CH2)n—OH Formula (1) m: an integer from 4 to 6, n: an integer from 1 to 4.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: May 8, 2012
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventor: Kenji Kashihara
  • Patent number: 8119729
    Abstract: The invention concerns aqueous secondary polymer dispersions based on special acrylate building blocks, a process for their production and their use as binders for the production of blister-free coatings.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: February 21, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Thomas Münzmay, Alice Münzmay, legal representative, Martin Melchiors, Sandra Hackbarth, Heinz-Dietmar Gewiβ
  • Patent number: 8034735
    Abstract: A catalyst component for the polymerization of olefins comprises Mg, Ti, halogen, and an alpha-omega-diether represented by the general formula: (RO)—(CR1R2)n—(OR), wherein the number of n is from 5 to 10, R is an alkyl, cycloalkyl or aryl radical containing 1 to 12 carbons, and R1 and R2 are independently from each other hydrogen, an alkyl, cycloalkyl or aryl radical containing 1 to 12 carbons. The catalysts prepared with such component provide a high mileage for the production of polyolefins with a high bulk density of the polymer produced in gas-phase polymerization process or in slurry polymerization process. Such catalyst produces narrower MWD PE, if compared with other catalyst systems.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: October 11, 2011
    Assignee: Basell Poliolefine Italia, s.r.l.
    Inventors: Masaki Fushimi, Maria Schmitt, Martin Schneider, Giampiero Morini
  • Patent number: 8030373
    Abstract: Provided is a pigment distribution system. The pigment distribution system includes a pigment encapsulated by physically adsorbing a diblock copolymer to the pigment. The diblock copolymer is represented by Formula 1 below: where -A- denotes a hydrophilic monomer, -B- denotes a hydrophobic monomer, m denotes an integer ranging from 1 to 10, and n denotes an integer ranging from 3 to 30, wherein hydrophilic monomers of neighboring diblock copolymer chains are crosslinked using a crosslinker.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: October 4, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Tae-woon Cha, Sung-woong Kim
  • Patent number: 8022153
    Abstract: A method for producing a polyethylene or polypropylene polymer, or co-polymer thereof, comprises contacting a monomer-containing medium with polymerization catalyst particles in at least one high shear mixing device to form a nanodispersion, wherein the particles have a mean diameter less than 1 micron. The monomer is selected from the group consisting of ethylene, propylene, and combinations thereof. The method further includes subjecting the nanodispersion to polymerization conditions comprising pressure in the range of about 203 kPa to about 6080 kPa (about 2 atm to about 60 atm) and temperature in the range of about 20° C. to about 230° C., whereby at least a portion of the monomer is polymerized. A system for carrying out the method is also disclosed.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: September 20, 2011
    Inventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
  • Patent number: 8021864
    Abstract: The present invention provides a resin capable of contributing greatly to solve environmental problems and problems related to exhaustion of fossil fuel resources and having physical properties suited for practical use. The polyester according to the present invention has a diol and a dicarboxylic acid as constituent components and has an amount of terminal acid of 50 equivalents/metric ton or less.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: September 20, 2011
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takayuki Aoshima, Yasuaki Miki, Katsuhisa Kumazawa, Satoshi Katou, Tadashi Uyeda, Toyomasa Hoshino, Noboru Shintani, Kenji Yamagishi, Atsushi Isotani
  • Patent number: 8017252
    Abstract: A light emitting device comprises a pair of electrodes and a mixed layer provided between the pair of electrodes. The mixed layer contains an organic compound which contains no nitrogen atoms, i.e., an organic compound which dose not have an arylamine skeleton, and a metal oxide. As the organic compound, an aromatic hydrocarbon having an anthracene skeleton is preferably used. As such an aromatic hydrocarbon, t-BuDNA, DPAnth, DPPA, DNA, DMNA, t-BuDBA, and the like are listed. As the metal oxide, molybdenum oxide, vanadium oxide, ruthenium oxide, rhenium oxide, and the like are preferably used. Further, the mixed layer preferably shows absorbance per 1 ?m of 1 or less or does not show a distinct absorption peak in a spectrum of 450 to 650 nm when an absorption spectrum is measured.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: September 13, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuji Iwaki, Satoshi Seo, Takahiro Kawakami, Hisao Ikeda, Junichiro Sakata, Tomoya Aoyama
  • Patent number: 8017680
    Abstract: A method of making a rubber latex comprises providing a rubber latex and adding to the latex a solution of a reinforcing agent. Further, a method of making a reinforced rubber latex film comprises providing a rubber latex, adding to the latex a solution of a reinforcing agent, then forming a film from the latex. There is also provided a rubber latex comprising a solution of a reinforcing agent, which is preferably a solution of a water-soluble silicate. Rubber latex films and articles made therefrom are also provided.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: September 13, 2011
    Assignee: LRC Products Limited
    Inventor: David Michael Hill
  • Patent number: 8013049
    Abstract: The present invention discloses a production method of core-shell type highly liquid absorbent resin particles comprising: (1) a first step in which a particle core portion is formed by suspension polymerizing an aqueous solution (e) containing (meth)acrylic acid, a crosslinking agent (c) and an anionic surfactant (d) in a hydrophobic organic solvent (a) containing a nonionic surfactant (b), and (2) a second step in which a shell portion that covers the particle core portion is formed by suspension polymerizing an aqueous solution (g) containing a water-soluble vinyl polymer (f), having carboxyl groups and polymerizable unsaturated double bonds and having a number average molecular weight of 500 to 10000, in a suspension obtained in the first step.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: September 6, 2011
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Hisakazu Tanaka, Kazuo Yamamura, Yoshiki Hasegawa, Masayuki Kamei
  • Patent number: 8013087
    Abstract: A process for preparing water-absorbing polymer beads by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, the initiator being added to the monomer solution from 0.5 to 60 seconds before the droplets are generated.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: September 6, 2011
    Assignee: BASF SE
    Inventors: Dennis Lösch, Marco Krüger, Achim Stammer
  • Patent number: 8013065
    Abstract: A method for making a multi-branched polymer includes reacting a first polymeric unit with a functional cyclic compound to form a functional macroinitiator compound with a cyclic moiety. The functional macroinitiator compound is reacted with an amine functional compound to open the cyclic moiety and form a first functional group and a second functional group. To form the branched polymer, at least one of a second polymeric unit is propagated from the first functional group and a third polymeric unit is propagated from the second functional group.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: September 6, 2011
    Assignees: International Business Machines Corporation, The Board of Trustees of the Leland Stanford Junior University
    Inventors: James L. Hedrick, Eric Appel, Robert D. Miller, Fredrik Nederberg, Robert M. Waymouth
  • Patent number: 8012488
    Abstract: A novel polyoxyalkylene derivative represented by the following formula (1), wherein each symbol is as defined in the specification, which has a functional group capable of reacting with various physiologically active substances according to the object is provided.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: September 6, 2011
    Assignee: NOF Corporation
    Inventors: Kenji Sakanoue, Kenichiro Nakamoto, Yuji Yamamoto, Hiroki Yoshioka
  • Patent number: 8008386
    Abstract: The present invention has its object to provide a curable composition not containing any organotin type curing catalyst currently of concern because of the toxic feature thereof, or any volatile compound, excellent in curability and storage stability and, further, capable of providing cured products excellent in strength and elongation; the above object can be achieved by a curable composition which includes: an organic polymer (A) containing a hydrolyzable silyl group in a molecule; an amidine compound (B); and a compound (C) containing a sulfonyl group in a molecule.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 30, 2011
    Assignee: Kaneka Corporation
    Inventors: Ayako Yano, Noriko Matsushita, Shintaro Komitsu
  • Patent number: 8008399
    Abstract: Rubber composition, which can be used for the manufacture of tires, based on at least one diene elastomer, one reinforcing filler, one vulcanization system and one maleimide compound, characterized in that the said maleimide compound is a polymaleimide of formula: in which: R1, R2, R3 and R4 are identical or different hydrocarbon radicals, n is equal to 0 or 1 with X being a nitrogen atom if n=0 and X being a carbon or silicon atom if n=1. Use of such a composition for the manufacture of a finished article or of a semi-finished product made of rubber intended for a motor vehicle ground-contact system, in particular of a tire.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: August 30, 2011
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Christiane Blanchard, Mathieu Manceau, Salvatore Pagano, Vanessa Roy
  • Patent number: 8008369
    Abstract: An ink set includes an ink composition including an encapsulated black pigment in which a black pigment is coated with a polymer resin.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: August 30, 2011
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Jae-yoon Jung, Seung-min Ryu
  • Patent number: 8008364
    Abstract: The present invention provides a pigment dispersion liquid including a pigment, a compound having a cyclic urea structure and having an acid group or a basic group, a dispersant, and a solvent. The pigment may be a pigment having a urea structure or an imide structure. The pigment may also be a pigment having a barbituric skeleton.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: August 30, 2011
    Assignee: Fujifilm Corporation
    Inventors: Kazuto Shimada, Yushi Kaneko, Tomotaka Tsuchimura
  • Patent number: 8008360
    Abstract: A proton exchange membrane and method for formation the same is disclosed. When forming the proton exchange membrane, first, a bismaleimide and barbituric acid are copolymerized to form a hyper-branched polymer. Next, the solvent of the sulfonated tetrafluorethylene copolymer (Nafion) aqueous solution is replaced with dimethyl acetamide (DMAc). 10 to 15 parts by weight of the hyper-branched polymer is added to 90 to 85 parts by weight of the Nafion in the DMAc solution, stood and heated to 50° C. for inter-penetration of the hyper-branched polymer and the Nafion. The heated solution is coated on a substrate, baked, and pre-treated to remove residue solvent to complete formation of the proton exchange membrane.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: August 30, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Chung-Liang Chang, Jing-Pin Pan, Tsung-Hsiung Wang, Yueh-Wei Lin, Ya-Tin Hsu