Patents Examined by Mark L. Bell
  • Patent number: 6884287
    Abstract: An ink base for producing pigmented inks having a water base contains a drying retarder and a pH adjusting agent. The drying retarder contains at least diethylene glycol, 1,6-hexane diol, and pentaerythritol. The pH adjusting agent (PH) contains at least one amine. The ink base contains at least 30.0-95.5% by wt. diethylene glycol; 3.0-40.0% by wt. 1,6-hexane diol; 0.01-3.0% by wt. pentaerythritol; and 1.5-15.0% by wt. amine(s).
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: April 26, 2005
    Assignee: J.S. Staedtler GmbH & Co.
    Inventors: Anke Müller, Manuela Geis, Stefan Engel
  • Patent number: 6884752
    Abstract: Method for producing novel photochemically-active metal oxide-containing aqueous compositions such as TiO2 compositions coated or sprayed and dried under ambient conditions to form novel photochemically-active, colorless coatings having strong wetability and adhesion to clear substrates such as window glass. Preferably the present compositions include a suitable wetting agent or combination of agents to improve the wetability of the Titanium peroxide-containing amorphous film, allowing thinner films to be readily applied. Also the inclusion of an acrylic aliphatic urethane polymer can replace wholly or partially the titanium peroxide sol and provide additional film forming and wetability properties. The acrylic urethane polymer reduces or eliminates the amount of titanyl peroxide that is required and thereby reduces or eliminates the yellow color.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: April 26, 2005
    Assignee: Prizmalite Industries, Inc.
    Inventor: John Andrews
  • Patent number: 6884746
    Abstract: Described herein is a prepolymerized catalyst encapsulated with macromolecular monomers which is prepared by adding olefin mononers and diene compounds to a solid complex titanium catalyst for olefin polymerization and then polymerizing, and also relates to a method for polymerization or copolymerization capable of preparing polyolefins with high melt strength by polymerizing the olefin by using said catalyst.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: April 26, 2005
    Assignee: Samsung General Chemicals, Co., Ltd.
    Inventors: Young-Soo Ko, Ki-Su Ro, Young-Jun Lee, Yong Chun
  • Patent number: 6884753
    Abstract: The present invention provides a method for producing a ceramic dispersion composition, the method comprising the step of heating a mixture of a ceramic powder having a photocatalytic activity, a dispersant and a solvent at a temperature of about 70° C. or higher without substantially letting the solvent out of the reaction system. The ceramic dispersion composition can be used for providing a film showing a high hydrophilicity by light irradiation.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: April 26, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshiaki Sakatani, Kensen Okusako, Hironobu Koike
  • Patent number: 6884751
    Abstract: Hydrocyanation catalysts comprising aqueous solutions of at least one water-soluble phosphine and nickel values, well suited for the hydrocyanation of ethylenically unsaturated organic compounds such as diolefins, olefinic nitrites and monolefins, are produced by (a) admixing an aqueous solution of such at least one water-soluble phosphine with a nickel hydroxide, (b) adding hydrogen cyanide or a compound which generates hydrogen cyanide to the mixture thus formed, (c) stirring the resulting mixture until the nickel values have at least partially dissolved, and (d) reducing at least a portion of said nickel values having an oxidation state of greater than zero to the zero oxidation state.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 26, 2005
    Assignee: Rhodia Feber & Resin Intermedaites
    Inventors: Paolo Burattin, Pierre Coqueret, Marc Huser
  • Patent number: 6884750
    Abstract: The present invention relates to new chiral salen catalysts and methods for the preparation of chiral compounds from racemic epoxides by using new catalyst. More particularly, the present invention is to provide novel chiral salen catalysts and their uses for producing chiral compounds having high optical purity to be used as raw materials for preparing chiral medicines or food additives in a large scale economically, wherein the chirl salen catalyst having a particular molecules structure can be reused continuously without any activating process of used catalysts and cause no or little racemization after the reaction is completed because it maintains its catalytic activity after the reaction process.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: April 26, 2005
    Assignee: RS Tech Corp.
    Inventors: Geon Joong Kim, Ho Seong Lee, Ho Cheol Kim, Jin Won Yun, Seong Jin Kim
  • Patent number: 6881696
    Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with an ester compound having at least one hydroxyl group and a boron compound having at least one alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: April 19, 2005
    Assignee: Samsung General Chemicals Co., Ltd.
    Inventors: Chun-Byung Yang, Ji-Yong Park, Yong-Bok Lee, Weon Lee
  • Patent number: 6881314
    Abstract: This invention relates generally to the field of field-flow-fractionation. In particular, the invention provides apparatuses and methods for the discrimination of matters utilizing acoustic force, or utilizing acoustic force with electrophoretic or dielectrophoretic force, in field flow fractionation.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: April 19, 2005
    Assignee: Aviva Biosciences Corporation
    Inventors: Xiao-Bo Wang, Jing Cheng, Lei Wu, Junquan Xu
  • Patent number: 6881698
    Abstract: The ionic liquids according to the invention result from the reaction of a halogenated or oxyhalogenated Lewis acid based on titanium, niobium, tantalum, tin or antimony with an organic salt of formula X+A? in which A? is a halide anion and X+ a quaternary ammonium, quaternary phosphonium or ternary sulphonium cation. These liquids can be used in particular in the liquid-phase fluorination using HF of saturated or unsaturated compounds having C—Cl groups.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: April 19, 2005
    Assignee: Atofina
    Inventors: Phillippe Bonnet, Eric Lacroix, Jean-Pierre Schirmann
  • Patent number: 6881873
    Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: April 19, 2005
    Assignee: UOP LLC
    Inventors: Ralph D. Gillespie, Michelle J. Cohn
  • Patent number: 6881251
    Abstract: A method for manufacturing a composition including: mixing a basic material with a pigment dispersion including at least a pigment and water; and then subjecting the mixture of the basic material and pigment dispersion to a heat treatment. This composition is useful as an inkjet ink composition. An inkjet ink composition including at least pigment, water and a basic material, and has a pH of from 6.5 to 11.0 is also provided. An image forming method including discharging the composition from a nozzle to form an ink image on a receiving material is provided.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: April 19, 2005
    Assignee: Ricoh Company, Ltd.
    Inventors: Keishi Taniguchi, Shigeo Hatada
  • Patent number: 6881701
    Abstract: The present invention provides a coating composition for substrates. The coating composition of the present invention generally includes a silicate binder and a plurality of photocatalytic particles. The silicate binder functions as a bonding agent to establish the coating on the substrate. A plurality of photocatalyst particles are dispersed throughout the silicate binder. The particles are included in an amount that provides sufficient distribution of the particles in the resulting coating. The incorporation of the present invention onto substrates prevents algal growth on building materials utilizing the coated substrates.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: April 19, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Jeffry L. Jacobs
  • Patent number: 6878659
    Abstract: A solid catalyst component for olefin polymerization characterized by being formed from (a) a magnesium compound, (b) titanium tetrachloride, (c) a phthalic diester and a derivative thereof, and either (d1) a hydroxylated hydrocarbon compound (phenol, etc.) represented by a specific formula or (d2) a mercapto-containing hydrocarbon compound (thiophenol, etc.) represented by a specific formula. With a catalyst obtained from this solid catalyst component, an olefin polymer can be obtained in extremely high yield. In particular, a propylene polymer which retains high stereoregularity can be obtained in extremely high yield.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: April 12, 2005
    Assignee: Toho Titanium Co., Ltd.
    Inventors: Kunihiko Tashino, Isa Nishiyama, Takuma Yoshida, Yukihiro Suzuki, Hayashi Ogawa, Maki Sato
  • Patent number: 6878666
    Abstract: A photo-catalyst comprising of oxynitride of at least one transition metal and oxynitride of transition metal further containing at least one element selected from the group consisting of alkali, alkali earth and IIIB group. Especially, the transition metal contained in said photo-catalyst comprising of oxynitride of transition metal is selected from the group consisting of La, Ta, Nb, Ti and Zr, and further containing metal is selected from the group consisting of Ca, Sr, Ba, Na, K and Rb. Desirably, a promoter comprising Pt or Ni is loaded on said oxynitride of transition metal.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: April 12, 2005
    Assignee: Japan Science and Technology Agency
    Inventors: Kazunari Domen, Michikazu Hara, Junko Nomura
  • Patent number: 6878660
    Abstract: The present invention relates to a novel, heterogeneous catalyst which is suitable, in particular, for olefin metathesis. This catalyst is immobilized on an inorganic support and contains at least one active rhenium compound containing at least one carbene group and, if desired, further functional groups. The rhenium compound is bonded to the material used as support by a chemical bond.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: April 12, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Jean-Marie Basset, Mathieu Chabanas, Christophe Coperet
  • Patent number: 6878658
    Abstract: The present invention provides a Ziegler-Natta catalyst useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention contain an alkyl silanol and have a molar ratio of Si:Ti from 0.25:1 to 4:1. The catalysts are effective for the solution polymerization of olefins at high temperatures.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: April 12, 2005
    Assignee: Nova Chemicals (International) S.A.
    Inventor: Isam Jaber
  • Patent number: 6875720
    Abstract: A method of treating an untreated catalyst support includes contacting an untreated catalyst support which is partially soluble in an aqueous acid and/or a neutral aqueous solution with a modifying component precursor of the formula Me(OR)x where Me is a modifying component selected from Si, Zr, Ti, Cu, Zn, Mn, Ba, Co, Ni, Na, K, Ca, Sn, Cr, Fe, Li, TI, Mg, Sr, Ga, Sb, V, Hf, Th, Ce, Ge, U, Nb, Ta, and W, R is an alkyl or acyl group, and x is an integer having a value of from 1 to 5. The modifying component is thereby introduced onto and/or into the catalyst support to form a protected modified catalyst support which is less soluble in the aqueous acid and/or the neutral aqueous solution. No calcination of the protected modified catalyst support is effected.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: April 5, 2005
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Peter Jacobus Van Berge, Jan Van De Loosdrecht, Sean Barradas
  • Patent number: 6875261
    Abstract: For the improvement of moldability of a lead and bending strength of a lead, a non-calcined lead of a colored pencil contains a colorant, a binder, a body filler, waxes and/or oils, and a hydrophilic surfactant, and as a hydrophilic surfactant, a polyethylene additive of oils is contained. For the improvement of water resistance, a non-calcined lead of a colored pencil contains a colorant, a binder, a body filler, waxes and/or oils, and a hydrophilic surfactant, and further, a water repellent substance. Further, as a non-calcined lead of a colored pencil with easy quality control process, it contains plate type alumina and/or plate type alumina hydrate.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: April 5, 2005
    Assignee: Sakura Color Products Corporation
    Inventors: Yuka Hashimoto, Hiroki Nishino
  • Patent number: 6875718
    Abstract: The invention provides olefin polymerization catalysts exhibiting excellent polymerization activities, a process for olefin polymerization using the catalysts, a novel transition metal compound useful for the catalysts, and ?-olefin/conjugated diene copolymers having specific properties. The olefin polymerization catalysts of the invention contain (A) a transition metal compound of formula (I), and (B) an organometallic compound, an organoaluminum oxy-compound or an ionizing ionic compound. The novel transition metal compounds of the invention are compounds of formula (I) wherein M is a transition metal atom of Group 3 or 4 of the periodic table; R1 is a hydrocarbon group, etc.; R2 to R5 are each H, a halogen, a hydrocarbon group, etc.; R6 is a halogen, a hydrocarbon group, etc.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: April 5, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Terunori Fujita, Yasushi Tohi, Makoto Mitani, Shigekazu Matsui, Junji Saito, Masatoshi Nitabaru, Kiyoaki Sugi, Haruyuki Makio, Toshiyuki Tsutsui
  • Patent number: 6875719
    Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon) in a ring structure and the bridge X forms a three-, four-, or five-member ring structure. The bite angle ? formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions. The metallocene compound is represented by formula (I) below.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: April 5, 2005
    Assignee: Industrial Technology Research Institute
    Inventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu