Patents Examined by Katarzyna W. Lee
  • Patent number: 6506817
    Abstract: A fluid composition additive for foundry casting sands enabling formation of lustrous carbon, including a liquid support and particles of at least one substance other than coal capable of forming lustrous carbon during metal casting.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: January 14, 2003
    Assignee: Huttenes-Albertus France S.A.R.L.
    Inventor: Manfred Buchler
  • Patent number: 6503962
    Abstract: The present invention is for providing a synthetic resin composition capable of effectively deodorizing amine malodor causing substances such as trimethyl amine. In a synthetic resin composition comprising an aqueous medium, a surfactant, and a polymer latex and a filler dispersed in the aqueous medium by the surfactant, a transitional metal supported silica gel having at least one selected from the group consisting of a transitional metal and a transitional metal compound supported by a silica gel and an activated carbon were used as the filler. Since the transitional metal or the transitional metal compound has an performs extremely well as a Lewis acid, it forms a complex with a Lewis base having an unpaired electron. That is, a malodor causing substance such as amines and ammonia having a nitrogen atom with an unpaired electron can be adsorbed efficiently.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: January 7, 2003
    Assignees: Toyoda Boshoku Corporation, Dainippon Ink and Chemicals, Inc.
    Inventors: Tomiko Mouri, Kazuhiro Fukumoto, Seiji Onoda, Yoshio Yamada, Hideki Ohno, Masako Furuta, Akihiro Matsuyama, Shigeyoshi Miura, Shirou Ueda
  • Patent number: 6498201
    Abstract: The present invention relates to thermoplastic compositions for making a liquid impermeable moisture vapor permeable layer by coating the composition onto a substrate. The thermoplastic compositions comprise preferred thermoplastic polymers and suitable hydrophilic plasticizers that also enhance the moisture vapor permeability of films or layers made from the thermoplastic compositions. The layers made from the thermoplastic compositions of the present invention can find a variety of applications wherein moisture vapor permeability is desirable, such as within absorbent articles for example diapers, sanitary napkins, panty liners and incontinence products, and also protective bedding covers, protective clothing and the like.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: December 24, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Italo Corzani, Gianfranco Palumbo
  • Patent number: 6489389
    Abstract: Rubber compositions for tire treads containing a rubber component containing at least 70 parts by weight of a styrene-butadiene rubber whose styrene content is 20 to 60%; 5 to 150 parts by weight of a powdery inorganic compound represented by formula (I) and having a particle size from 0.01 to 10 &mgr;m: mM1•xSiOy•zH2O  (I) in which M1 is at least one of Al, Mg, Ti, and Ca, or hydroxides or oxides thereof; and 5 to 170 parts by weight of carbon black having a nitrogen adsorption specific area of 80 to 280 m2/g and the total amount of the powdery inorganic compound and the carbon black is from 70 to 200 parts by weight. The amount of an extract obtained when extracting the rubber composition, after being vulcanized, with acetone and chloroform should be 30 to 270 parts by weight. Similar compositions containing silica are also disclosed.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: December 3, 2002
    Assignee: Bridgestone Corporation
    Inventors: Toshiyuki Ohta, Kenji Matsuo, Jun Sakiyama, Seiichiro Iwafune
  • Patent number: 6479558
    Abstract: A process and resulting product is provided in which a vulcanized solid particulate, such as vulcanized crumb rubber, has select chemical bonds broken by biotreatment with thermophillic microorganisms selected from naturally occurring isolates derived from hot sulfur springs. The biotreatment of the crumb rubber renders the treated crumb rubber more suitable for use in new rubber formulations. As a result, larger loading levels and sizes of the treated crumb rubber can be used in new rubber mixtures.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: November 12, 2002
    Assignee: Westinghouse Savannah River Company
    Inventor: Carl B. Fliermans
  • Patent number: 6469085
    Abstract: A cooling agent including a metal salt aqueous solution and a nonionic polymer as an agent for extending cooling duration, wherein the nonionic polymer has a group with an affinity due to interaction with a water molecule, and is free of an ionic group ionically bound to a metallic ion in the aqueous solution, a cooling pack in which the cooling agent is charged into a pack made of a resin, and a cooling box in which the cooling pack is placed in a cooling box made of a resin foam. The cooling agent, the cooling pack and the cooling box provide long-term cooling duration, and are suited for long-term cooled transportation, cooled storage and cooled display.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: October 22, 2002
    Inventor: Koji Mizutani
  • Patent number: 6462099
    Abstract: This invention discloses a process for devulcanizing the surface of reclaimed rubber crumb into surface devulcanized reclaimed rubber crumb that is suitable for being recompounded and recurred into high performance rubber products, said process comprising the steps of (1) heating the reclaimed rubber crumb to a temperature within the range of about 150° C. to about 300° C. under pressure of at least about 3.4×106 Pascals in the presence of 2-butanol to devulcanized the surface of the rubber crumb thereby producing a slurry of the surface devulcanized reclaimed rubber crumb in the 2-butanol, wherein the reclaimed rubber crumb has a particles size which is within the range of about 325 mesh to about 20 mesh, and (2) separating the surface devulcanized reclaimed rubber crumb from 2-butanol.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: October 8, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: David Andrew Benko, Roger Neil Beers
  • Patent number: 6458877
    Abstract: The present invention relates to a composition comprising a thermoplastic component and at least one superabsorbent polymer, methods of use for such composition, and articles comprising such composition. The composition may be formed into a film layer or applied to an article with various hot melt adhesive application techniques. The composition is useful for a variety of end-uses, particularly for use in disposable absorbent articles such as disposable diapers, feminine napkins and medical dressings.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: October 1, 2002
    Inventors: Sharf U. Ahmed, Andualem W. Emiru, Leslie J. Clapp, Mark S. Kroll
  • Patent number: 6451872
    Abstract: A non-asbestos friction material is comprised of a molded and cured composition which includes a fibrous base, a binder, a filler, and particles of a rubber composite composed primarily of at least one fibrous substance and rubber, or of at least one fibrous substance, at least one type of hard particle and rubber. The rubber composite particles enable the fibrous substance to be uniformly dispersed and mixed without forming clumps and without segregation of the hard fibrous substance and the hard particles in the finished article. The qualities of each constituent can thus be used to full advantage to give friction materials such as automotive disk pads which have an excellent friction performance.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: September 17, 2002
    Assignees: Nisshinbo Industries, Inc., BBA Friction GmbH
    Inventor: Takeshi Yamane
  • Patent number: 6443202
    Abstract: An aqueous coating composition which can be applied to a cured rubber surface, such as the white sidewall, colored sidewall, raised white lettering or raised colored lettering of a tire, to provide a protective coating against staining and scuffing. The composition includes (a) polyvinyl alcohol, (b) ethylene-vinyl acetate copolymer, and (c) one or both of (i) a silicon emulsion in an amount sufficient to provide increased scuff resistance to a coating prepared from the composition, and (ii) a thickening agent of a type and in an amount effective to render the composition shear-thinning.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: September 3, 2002
    Assignees: Quality Manufacturing, Inc., The Goodyear Tire and Rubber Company
    Inventors: James J. Burton, James M. Duchaine, Mortimer J. Huber, Bharat K. Kansupada, Fredrick L. Magnus
  • Patent number: 6444742
    Abstract: Disclosed are polyolefin/clay nanocomposites, comprising 40 to 99.9% by weight of polyolefins and 0.1 to 60% by weight of sepiolite-palygorskite type clays selected from the group essentially consisting of sepiolite and attapulgite. The nanocomposites in accordance with the present invention have excellent mechanical properties and thermal resistance. Also disclosed is a process for preparing the polyolefin/clay nanocomposites according to the present invention.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: September 3, 2002
    Assignees: China Petrochemical Corporation, Research Institute of Petroleum Processing SINOPEC
    Inventors: Junfeng Rong, Zhenhua Jing, Xiaoyu Hong, Wei Zhang
  • Patent number: 6441076
    Abstract: Production of a paper coating composition having improved low shear viscosity at a high solids level of fine particle size calcium carbonate. The improvement in low shear viscosity is achieved by dissolving a fine particle size, partially hydrolyzed, low molecular weight poly(vinyl alcohol) powder in an aqueous slurry of pigment particles containing predominantly fine particle size calcium carbonate. Dissolution of the poly(vinyl alcohol) is achieved without external heating or adding water to the slurry. The slurry can then be formulated with other components to produce the ink jet paper coating composition which, when applied to a paper substrate, provides excellent ink jet printability.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: August 27, 2002
    Assignee: Celanese International Corporation
    Inventor: John Richard Boylan
  • Patent number: 6437034
    Abstract: Formation of polymeric prototype elements is effected by high pressure and high temperature extrusion of selected materials onto a plate as a ribbon of liquefied polymer comprising poly(2-ethyl-2-oxazoline) and a polar polymer discharged in a programmed pattern.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: August 20, 2002
    Assignee: Stratasys, Inc.
    Inventors: John Lang Lombardi, Dragan Popovich, Gregory John Artz
  • Patent number: 6433076
    Abstract: There is provided a low-staining agent which can outstandingly improve an anti-staining property and a property of preventing penetration of a staining substance when it is added to an aqueous paint, which does not affect a weather resistance and a water resistance of the paint, and which has an excellent compatibility with the aqueous paint. The present invention also relates to a low-staining aqueous paint composition to which said low-staining agent is added. The present invention relates to an aqueous paint low-staining agent which is a modified condensation product of alkoxysilane having at least one polyoxyalkylene group and an alkoxyl group, wherein a repetition unit of said polyoxyalkylene group has 1 to 4 carbon atoms, and said alkoxyl group has 1 to 4 carbon atoms. In particular, it is preferable that the polyoxyalkylene group is a polyoxyethylene group and the alkoxyl group is an ethoxy group.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: August 13, 2002
    Assignee: SK Kaken Co., Ltd.
    Inventors: Shigeto Kamimura, Hiroyoshi Ono, Yoshifumi Asada, Hisashi Suzuki
  • Patent number: 6431236
    Abstract: A pneumatic tire having a non-black rubber composition provided at the at least one portion thereof, at least a portion of said non-black rubber composition comprising 100 part by weight of at least one synthetic rubber and 5 to 100 parts by weight of strontium aluminate or calcium aluminate a long afterglow phosphorescent substance having an average particle size of 1 to 100 Am and having no substantial amounts of carbon black and staining antioxidant, and crosslinked with a crosslinking agent other than sulfur or a pneumatic tire having two or more layer structure of a surface layer of the above phosphorescent rubber composition layer and a lower layer of a blight-colored reflecting layer or the transparent or translucent cover layer and the under phosphorescent rubber composition layer.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: August 13, 2002
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Daisuke Kanenari, Hiroyuki Kaido
  • Patent number: 6429236
    Abstract: The subject invention relates to a foundry binder system that cures in the presence of a volatile amine curing catalyst. The binder system comprises a Part I component comprising (1) a phenolic resin component, and (2) a free radical initiator, and a Part II component comprising (1) a polyisocyanate, and (2) a multifunctional acrylate. The foundry binders are used for making foundry mixes. The foundry mixes are used to make foundry shapes that are used to make metal castings.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: August 6, 2002
    Assignee: Ashland Inc.
    Inventors: Gary M. Carlson, Robert B. Fechter, Edward G. Toplikar, D. Greg Hendershot
  • Patent number: 6427740
    Abstract: Coating composition for forming a protective film of a colored rubber portion of a tire sidewall and a protective film formed thereby are provided whereby contamination of a colored rubber portion is effectively prevented when transporting or storing tires without troublesome operation such as peeling and removing a film. Such coating composition comprises at least one resin with polymerization degree 200 and above selected from the group consisting of polyvinyl acetate resin, specific vinyl acetate copolymer resin and polyvinyl alcohol, and at least one solvent selected from the group consisting of lower alcohol, water and any combination thereof, a solution viscosity being 300 cps-1000 cps.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: August 6, 2002
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Koji Hiramatsu
  • Patent number: 6427741
    Abstract: A pneumatic aircraft tire has carcass plies and/or breaker plies which are reinforced by high modulus reinforcement cords embedded in a rubber composition that contains no free amines and has a 300% modulus of 12-18 MPa and a minimum tensile strength of 23 MPa as tested per ASTM D412, and a T90 of between 30 and 40 minutes at a reference temperature of 135 degrees C. as tested per ASTM D2084. The cords in the carcass plies and/or breaker plies have a tenacity of 6.6 to 8.2 g/denier, an initial modulus of 120 to 280 g/denier, an elongation at break of 8 to 18% and a shrinkage of not greater than 3%. Polyester reinforcement cords are preferred.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: August 6, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lewis Timothy Lukich, Thomas Andrew Dwenger, John Robert McGilvrey
  • Patent number: 6426374
    Abstract: This invention relates to foundry binder compositions that contain a divalent sulfur compound, and/or foundry mixes where the aggregate contains a divalent sulfur compound. The foundry binders and foundry mixes are used to make foundry shapes, e.g. molds and cores. The presence of sulfur in the foundry shape facilitates the removal of foundry shapes (particularly internal cores) from the metal casting which is made by pouring molten metal into a casting assembly in which the foundry shapes are arranged. The invention also relates to a method of preparing foundry shapes, the shapes prepared, a method of making a metal casting, and metal castings by this process.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: July 30, 2002
    Assignee: Ashland Inc.
    Inventor: Michael J. Skoglund
  • Patent number: 6417251
    Abstract: This invention relates to a process for the recovery of polymeric latices from whitewater. The process of the invention is an ultrafiltration process which utilizes a flat membrane run in the turbulent regime, or a vibrating membrane.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: July 9, 2002
    Assignee: Rohm and Haas Company
    Inventor: Robert Anthony Brady