Patents Examined by Katarzyna I. Wyrozebski
  • Patent number: 8092629
    Abstract: A method for forming a porous PTFE layer includes steps of: combining one or at least two unburned porous PTFE films and a support body that can withstand a heating condition in the following process (a rod or plate shaped support body made of mesh or the like is preferable) by using a predetermined means in such a manner that a slip can be prevented in a heating treatment in the following process; and heating the matter resulted from the above process at a temperature of at least 150° C. and less than the melting point of the PTFE film for the range of 5-120 minutes (preferably at a temperature in the range of the melting point of a thermoplastic resin fiber to 320° C. for the range of 10-60 minutes in the case in which the thermoplastic resin fiber or the like is used in the process).
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: January 10, 2012
    Assignee: Nippon Valqua Industries, Ltd.
    Inventors: Yasushi Aburatani, Toshikiyo Komazawa, Tatsuo Takamure
  • Patent number: 6667363
    Abstract: A material for liquid keeping containers comprising a resin composition which contains a syndiotactic polystyrene resin and a polypropylene resin and includes a compatibilized structure of the syndiotactic polystyrene resin phase and the polypropylene resin phase, the proportion of these phases being 90-10/10-90 (weight ratio).
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: December 23, 2003
    Assignees: Asahi Kasei Kabushiki Kaisha, Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ken Mizushiro, Shigekatsu Yoshida, Hideo Kinoshita, Toshiro Ijima
  • Patent number: 6656997
    Abstract: A product made from plastic and composed, at least in part, of a thermoplastic molding composition which comprises polyamide and comprises from 3 to 30% by weight of a conductivity black, where the conductivity black is defined by the following parameters: a) DBP absorption of from 100 to 300 ml/100 g; b) a specific surface area of from 30 to 180 m2/g; c) an ash content of less than 0.1% by weight and d) a grit content of not more than 25 ppm, has improved heat-ageing resistance, and also improved resistance to peroxide-containing motor fuels.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: December 2, 2003
    Assignee: Degussa AG
    Inventors: Franz-Erich Baumann, Reinhard Beuth, Josef Kübber, Michael Schlobohm
  • Patent number: 6602931
    Abstract: This invention relates to a polyurethane-forming no-bake foundry binder comprising a (a) polyol component comprising (1) a polyol selected from the group consisting of polyether polyols, aminopolyols, polyester polyols, and mixtures thereof, and (2) a hydrogenfluoride of aminosilanol, (b) a polyisocyanate component, and optionally (c) a liquid tertiary amine catalyst component. Foundry mixes are prepared by mixing the binder system with a foundry aggregate by a no-bake process. The resulting foundry shapes are used to cast metal parts from ferrous and non-ferrous metals.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: August 5, 2003
    Assignee: Ashland Inc.
    Inventors: Chia-hung Chen, Jorg Kroker
  • Patent number: 6590023
    Abstract: A method of making a coating formulation prior to its introduction onto a web to be printed by an ink jet printer. The method includes the steps of: determining the nature and amount of undesirable substances in a component of the coating formulation, adjusting the pH of the component, contacting the pH adjusted component with a first activated carbon material, filtering the thus treated component, contacting the thus treated component with a second activated carbon material, and filtering the thus treated component and combining it with other components of the coating formulation to yield a treated coating formulation having a reduced amount of the undesirable substances.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: July 8, 2003
    Assignee: Lexmark International, Inc.
    Inventor: David S. MacMillan
  • Patent number: 6573323
    Abstract: Disclosed herein is an aluminum hydroxide having specific characteristics, and a tire tread rubber composition and a pneumatic tire employing the aluminum hydroxide, which allow grip performance and abrasion resistance to increase and rolling resistance to decrease and are superior in processibility. The aluminum hydroxide has a loosed bulk density of not more than 0.60 g/cm3, a DOP oil absorption of at least 70 cm3/100 g and less than 250 cm3/100 g, and a BET specific surface area of at least 30 m2/g and less than 350 m2/g. 5-150 parts by weight of the aluminum hydroxide is blended with 100 parts by weight of a rubber component to obtain the tire tread rubber composition. The rubber component preferably includes at least 60 parts by weight of styrene-butadiene rubber having a styrene content of 20-60% by weight.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: June 3, 2003
    Assignees: Sumitomo Rubber Industries, Ltd., Sumitomo Chemical Company, Limited
    Inventors: Naohiko Kikuchi, Takeshi Ota, Satoru Nippa, Mamoru Uchida
  • Patent number: 6548587
    Abstract: This invention relates to a composite composition comprising one or more polyamide polymers or copolymers, one or more layered clay materials, and one or more alkoxylated ammonium cations. The invention also relates to a process for preparing a nanocomposite and articles produced from the nanocomposite, including bottles.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: April 15, 2003
    Assignee: University of South Carolina Research Foundation
    Inventors: Shriram Bagrodia, John Walker Gilmer, Jeffrey Todd Owens, Linda Gail Bernard, Sam Richard Turner, James Christopher Matayabas, Jr., Vasiliki Psihogios, Tie Lan
  • Patent number: 6512036
    Abstract: The invention relates to a sulfur curable (and cured) rubber composition which contains one or more pentaerythritol derivatives as pentaerythritol tetrabenzoate (PTB) and/or pentaerythritol tetrakis (3,5-di-tert-butyl-4-hydroxyhydrocinnamate) (PTHC) together with a low molecular weight polyester sebacate. Such combination of materials has been observed to increase resistance to tear for a rubber composition. The invention particularly relates to a tire having a component comprised of such rubber composition.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: January 28, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Neil Arthur Maly
  • Patent number: 6486255
    Abstract: The present invention relates to a thermoplastic resin composition and a method for making the same. The method for manufacturing a thermoplastic resin composition comprises introducing carbon fibrils and a polyamide into a first mixture comprising a polyphenylene ether, a polyamide, and a compatibilizing agent to provide a second mixture comprising, based upon the total weight of the second mixture: about 10 to about 50 wt. % of the polyphenylene ether, about 35 to about 65 wt. % of the polyamide, about 0.4 to about 3 wt. % of the carbon fibrils, and about 0.4 to about 3 wt. % of the compatibilizing agent; and blending the second mixture at a temperature sufficient to melt the polyphenylene ether.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: November 26, 2002
    Assignee: General Electric Company
    Inventors: Christiaan H. Koevoets, Johannes Matthijssen
  • Patent number: 6462125
    Abstract: A pigment dispersion that includes a pigment, an aqueous carrier, and a pigment dispersant. The pigment dispersant is prepared by atom transfer radical polymerization initiated and has the polymer chain structure: &phgr;—(G)p—(E)a—T where G is a residue of at least One ethylenically unsaturated monomer; E is a hydrophilic residue of at least one ethylenically unsaturated monomer; &phgr; is a hydrophobic residue of or derived from an initiator; T is or is derived from a radically transferable group from the initiator, p and s represent average numbers of residues occurring in a block of residues; p and s are each individually selected such that said pigment dispersant has a number average molecular weight of at least 250.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: October 8, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Daniela White, Simion Coca, James B. O'Dwyer
  • Patent number: 6362257
    Abstract: The pavement patch composition of the present invention comprises a lightweight aggregate and highly modified polymer asphalt binder. The composition is formed by heating the binder to a flowable state, mixing the flowable binder with a lightweight aggregate, and then allowing it to cool into a solid form. The pavement patch composition is used to repair voids in pavement, such as pot holes, cracks and depressions. It is applied by heating solid pavement patch composition to a flowable state and applying it to the void, or on a surface in need of repair, and then allowed to cool. The resulting patch is self-adhering, strong and flexible. The formulation of the pavement patch composition may be adjusted for specific use in a cold climate, a moderate climate, a warmer climate, or for use in various traffic applications.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: March 26, 2002
    Assignee: Crafco, Incorporated
    Inventors: James G. Chehovits, Robert Lowell Parkison
  • Patent number: 6348539
    Abstract: This invention relates to a polymeric resin which contains from 35 to 65 percent by weight of polymeric units derived from dicyclopentadiene and from 65 to 35 percent by weight of polymeric units derived from beta-pinene. The polymeric resins are particularly useful in improving traction of the rubber when used in tire treads.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: February 19, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Mark Leslie Kraleyich, Jr., Edward John Blok, Paul Harry Sandstrom
  • Patent number: 6335390
    Abstract: Aqueous coating compositions comprise a water-soluble or water-dispersible film-forming polymer, a metallic pigment based on coated metal flakes, an organic nitro compound which is further carboxyl-, carbonyl- and/or hydroxyl-functionalized, and an organic solvent in which the nitro compound is soluble, along with further components customary for aqueous coating compositions.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: January 1, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Seeger, Norbert Mronga
  • Patent number: 6214922
    Abstract: A nitrite polymer vulcanizate having improved hot air aging characteristics is described. The nitrite polymer vulcanizate may be produced admixing a composition comprising: (i) a nitrite polymer; (ii) a filler; (iii) an additive selected from the group comprising: a strong base, a salt of a strong base and a weak acid, a salt of a weak acid, a carbodiimide, a polycarbodiimide and mixtures thereof; and (iv) a vulcanization system. A vulcanizable composition useful for producing such a vulcanizate and a method for improving the hot air aging characteristics of a nitrite polymer are also described.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: April 10, 2001
    Assignee: Bayer Inc.
    Inventor: Ezio Campomizzi
  • Patent number: 6201041
    Abstract: A substrate with an organic undercoat as bonding layer for a printing medium to be deposited subsequently on the substrate in a printing process is such that the organic undercoat contains fine grained constituents of organic and/or inorganic substances, whereby the surface of the inorganic constituents is treated or provided with a coating of organic substances. Suitable inorganic constituents are e.g. highly dispersed silica, the surface of which is treated with a resin or a polymer. Suitable compositions for the organic undercoat layer on the substrate are organic coatings based on many commercially available organic coating materials with an addition of e.g. 0.3 to 20 wt. % silica. By adding highly dispersed silica to the undercoat the adhesion between the undercoat and the printing medium can be greatly improved, also in the case of laser printing methods with small thermal energy.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: March 13, 2001
    Assignee: Alusuisse Technology & Management Ltd.
    Inventors: Erwin Pasbrig, Dietrich Bubeck