Carbon, Titanium Dioxide, Glass, Or Silicon Dioxide Having Specified Crystalline Form Or Numerical Limitation Other Than Amount, E.g., Included Herein Are Particle Size, Shape, Etc., As Dnrm Patents (Class 524/847)
  • Patent number: 6720083
    Abstract: An adhesive composition for bonding of semiconductor chips to their chip mounting components comprising a curable polymer composition that comprises a spherical filler having an average particle size from greater than 100 to 1,000 &mgr;m and an aspect ratio of 1 to 1.5. Semiconductor devices according to this invention are characterized in that a semiconductor chip therein is bonded to the mounting component for said chip by the aforementioned adhesive.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: April 13, 2004
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Kimio Yamakawa, Minoru Isshiki, Katsutoshi Mine
  • Patent number: 6720368
    Abstract: The invention provides a matt, thixotropic paint formulation comprising a resin system and a matting agent. The matting agent comprises a hydrophobic metal oxide, which has a surface moiety (i.e., one or more surface moieties) selected from the group consisting of trimethyl silyl, vinyl dimethyl silyl, acryl dimethyl silyl, and dimethyl silyl. Morever, the paint formulation is characterized by having thixotropic properties such that it does not sag at a notch height of about 75 &mgr;m when measured with an anti-sag meter after application to a substrate. The invention also provides a method of producing such a paint formulation. The invention further provides a substrate having a surface coated with the matt, thixotropic paint formulation of the invention.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: April 13, 2004
    Assignee: Cabot Corporation
    Inventor: Rex J. Field
  • Publication number: 20040059053
    Abstract: Aqueous dispersions entirely or substantially free from volatile organic compounds, comprising
    Type: Application
    Filed: August 20, 2003
    Publication date: March 25, 2004
    Inventors: Wolfgang Bremser, Hans-Peter Steiner, Frank Strickmann
  • Patent number: 6686033
    Abstract: It is disclosed a wateborne composition comprising styrene-acrylic latex having a glass transition temperature (Tg) of from about 0° C. to about 30° C., vinylidene chloride-containing polymer latex and at least one filler. The composition exhibits sound damping property at both low and high frequencies as well as chip resistance and abrasion resistance. The composition is effective for use in the transportation industry, the building industry, the aerospace industry and the appliance industry.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: February 3, 2004
    Assignee: H.B. Fuller Licensing & Financing Inc.
    Inventor: John M. Chacko
  • Patent number: 6683132
    Abstract: Self-crosslinking aqueous coating compositions are disclosed comprising a water-dispersible alkyd having both sulfonate and acetoacetate functionality, a suitable bi- or poly-functional primary amine, and a monofunctional primary or cycloaliphatic secondary amine. The crosslinking of the composition includes oxidative curing via the fatty acid segments of the alkyd, and crosslinking via reaction between the acetoacetate groups of the alkyd and the primary amine groups of the polyfunctional amine. The aqueous alkyd systems disclosed do not require the presence of amines for the purpose of dispersing the alkyds, while exhibiting superior tack-free and through-dry times when used in coating compositions. Performance levels are achieved that heretofore had required increases in molecular weight and Tg, with a concomitant increase in VOC levels. Also disclosed are methods of making the inventive compositions.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: January 27, 2004
    Assignee: Eastman Chemical Company
    Inventors: Martin Frederick Schick, Amy Lee Bolton, Thauming Kuo
  • Patent number: 6673855
    Abstract: The invention concerns polyolefin compositions with high flame resistance. The compositions comprise (percent by weight): A) from 20 to 60% by weight of a heterophasic olefin polymer composition comprising a crystalline olefin polymer (a) and an elastomeric olefin polymer (b), said composition (A) being optionally modified with at least one functional monomer in an amount from 0.005% to 0.6% by weight with respect to the total weight of the total composition; B) from 15 to 40% by weight of one or more than one inorganic hydrated fillers; C) from 12 to 40% by weight of one or more than one organic flame retardants containing nitrogen in the molecule; D) from 0 to 40% by weight of one or more than one inorganic anhydrous fillers. Possible applications include the use as insulating material in electric wires and cables and the use as waterproofing sheets for roofs and tunnels.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: January 6, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Vittorio Braga, Paolo Goberti, Ugo Zucchelli, Roberta Marchini
  • Patent number: 6649685
    Abstract: Provided are a long fiber-reinforced polypropylene resin composition which provides a molded article excellent in a mechanical strength and an impact resistance and having a small anisotropy in a strength, so that it can suitably be used even for uses in medium-sized to large-sized molded articles, and a molded article obtained from the same. The long fiber-reinforced polypropylene resin composition comprises 35 to 75% by weight of a matrix polymer comprising a modified propylene homopolymer (A1) which is prepared by modifying a propylene homopolymer with an unsaturated carboxylic acid or a derivative thereof and which has an isotactic pentad ratio (P value) of 96% or more, a melt flow rate (230° C., 21.18N) of 80 g/10 min or more and an Mw/Mn (Q value) of 3.5 or less and 25 to 65% by weight of a glass long fiber (A2) having a length of 2 to 50 mm.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: November 18, 2003
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Koichi Saito, Toshimori Nakai, Nobukazu Atsumi, Hideshi Ishiwa
  • Patent number: 6645091
    Abstract: A golf ball comprising a center, a cover, and optionally, at least one intermediate layer disposed between the center and the cover, wherein at least one of the cover and the at least one intermediate layer is formed with a thermoplastic polyurethane composition comprising a reaction product of at least one polyol and at least one diisocyanate, and a curing agent consisting essentially of at least one diol having the formula: HOH2CH2C(OH2CH2C)nO—X—O(CH2CH2O)mCH2CH2OH; wherein n and m, each separately have a value of 0, 1, 2, or 3, X is o-phenylene, m-phenylene, p-phenylene, 1,2-cyclohexyl, 1,3-cyclohexyl, 1,4-cyclohexyl; and mixtures a thereof.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: November 11, 2003
    Assignee: Acushnet Company
    Inventors: Shenshen Wu, Murali Rajagopalan
  • Patent number: 6639009
    Abstract: A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macrocyclic polyester oligomer and a polymerization catalyst with water and a surfactant, and mixing the macrocyclic polyester oligomer and polymerization catalyst with water and the surfactant thereby forming a suspension. In another embodiment, a process for impregnating macrocyclic polyester oligomers for polymerization includes the steps of providing a suspension of a macrocyclic polyester oligomer and a polymerization catalyst in water, applying the suspension to a base material, drying to remove water from the suspension, and pressing the dried suspension to a desired form. In yet another embodiment, a composition of macrocyclic polyester oligomer includes a macrocyclic polyester oligomer, a polymerization catalyst, and water.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: October 28, 2003
    Assignee: Cyclis Corporation
    Inventors: Steven J. Winckler, Tohru Takekoshi
  • Publication number: 20030187124
    Abstract: There are provided a composite which is formed of a component (a) or a component (b) and a component (c), or the component (a) or the component (b) and a component (d), and is suitable for various uses such as an electrically-conductive material, (a) oxidized form thin film particles which are obtained by oxidizing graphite, have a carbon skeleton, have a thickness of 0.4 nm to 10 nm and a planar-direction size of at least 20 nm and have lyophilic to a liquid having a relative dielectric constant of at least 15, (b) reduced form thin film particles obtained by partially or completely reducing the above thin film particles so as to have an oxygen content of 0 to 35 wt %, (c) a macromolecule as a matrix component, and (d) low molecular-weight parts which bond a plurality of the thin film particles by a covalent bond, a process for the production of the composite, and a method for reducing oxidized form thin film particles.
    Type: Application
    Filed: February 7, 2003
    Publication date: October 2, 2003
    Inventors: Masukazu Hirata, Takuya Gotou, Kouji Takenaka, Ryu Iwasaki, Shigeo Horiuchi
  • Patent number: 6624233
    Abstract: A low rolling resistance tire for vehicles includes a carcass structure, a belt structure coaxially extending around the carcass structure, and a tread coaxially extending around the belt structure and being externally provided with a rolling surface designed to contact the ground. The tread includes a vulcanized polymer base having at least a first silica-based reinforcing filler. The first silica-based reinforcing filler has an average projected area of aggregates, measured before incorporation into the polymer base, lower the 20,000 nm2, a dispersion index in the polymer base not lower than 97%, and an average projected area of the aggregates, measured after incorporation into the polymer base, between 8,500 nm2 and 18,000 nm2.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: September 23, 2003
    Assignee: Pirelli Pneumatici S.p.A.
    Inventors: Angela Amaddeo, Luciano Garro, Fabrizia Sala
  • Patent number: 6620861
    Abstract: There are provided an inorganic filler, multi-functional filler, an organic compound filler, a modified filler, and a dental coloring filler suitable in use as a filler in a dental composition, compositions having a resin matrix of an organic polymer material, as well as a process for producing the same. Disclosed are an inorganic filler which comprises an inorganic fine particle, wherein the surface of the inorganic fine particle is covered with polysiloxane. Also disclosed is a multi-functional filler which comprises an inorganic fine particle containing an acid reactive element, wherein a cement reactive phase is formed on the surface of the inorganic fine particle, and the cement reactive phase is further covered with polysiloxane. Also disclosed is an organic compound filler which comprises an organic-inorganic polymer particle or an organic polymer particle, wherein the surface of the organic-inorganic polymer particle or an organic polymer particle is covered with an inorganic film.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: September 16, 2003
    Assignee: Kabushiki Kaisha Shofu
    Inventors: Toshiyuki Nakatuka, Yasuhisa Yasuda, Katsuya Kimoto, Mitsuharu Mizuno, Noriyuki Negoro
  • Patent number: 6586517
    Abstract: The present invention provides a long fiber-reinforced polypropylene resin composition for a molded article which is improved in all of a mechanical strength, a rigidity and an impact resistance and excellent as well in a durability, in which the long fiber-reinforced polypropylene resin composition comprises a long fiber-reinforced propylene polymer composition comprising a propylene polymer modified with unsaturated carboxylic acid or an anhydride thereof and having an isotactic pentad ratio of 96% or more and a melt flow rate of 100 to 500 g/10 min, an alkaline earth metal compound, and a glass fiber; and a propylene-ethylene copolymer composition comprising a propylene-ethylene copolymer having a melt flow rate of 10 to 60 g/10 min and a nucleating agent.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: July 1, 2003
    Assignees: Mazda Motor Corporation, Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Koichi Saito, Toshimori Nakai, Takahiro Tochioka
  • Publication number: 20030119981
    Abstract: A slush molding process in which the moldable thermoplastic composition powder dosed to the mold is prepared by blending ethylene carboxylic acid copolymers or ionomers with ethylene/glycidyl acrylate or methacrylate copolymer and cross-linking promoter at a temperature and for a time that does not cause significant cross-linking prior to dosing to mold, which is held for sufficient time and temperature to cause cross-linking in-situ, and optionally, other additives including release agents.
    Type: Application
    Filed: October 31, 2002
    Publication date: June 26, 2003
    Inventors: Karlheinz Hausmann, George K. Kodokian, George W. Prejean
  • Patent number: 6582650
    Abstract: An oxide-containing organosilicon polymer containing 1 to 45% by weight of metal oxide particles, an oxide-containing silicon-carbide-based inorganic fiber obtained by using the above organosilicon polymer as a raw material and having excellent oxidation resistance, in particular excellent oxidation resistance in a high temperature oxidizing atmosphere containing moisture, a crystalline silicon-carbide-based inorganic fiber having a calcined structure of SiC and production processes of these.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: June 24, 2003
    Assignee: Ube Industries, Ltd.
    Inventors: Kiyoshi Kumagawa, Masaki Shibuya, Michiyuki Suzuki, Hiroyuki Yamaoka
  • Patent number: 6566243
    Abstract: A two-component porous material including small silicalite crystals in a porous binder provides a low dielectric constant material useful as an insulating layer in microelectronic devices. The silicalite/binder porous material uses silicalite nanocrystals smaller than the characteristic dimensions of the features on the integrated circuit device. The binder is an amorphous porous material that links the silicalite nanocrystals together, formed from a precursor which polymerizes on heating. The silicalite nanocrystals are supplied as a colloidal suspension or slurry. The slurry and binder precursor are spincoated onto a substrate and thermally treated to polymerize the binder precursor and drive off solvent in the slurry, forming the porous silicalite/binder material. The silicalite/binder porous material is readily integrated into standard damascene fabrication processes.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 20, 2003
    Assignee: Novellus Systems, Inc.
    Inventor: Justin F. Gaynor
  • Patent number: 6555056
    Abstract: A method of preserving two or more separately packaged agents for forming a silicone composition which can be cured by mixing the separately packaged agents, which method can reduce the number of air bubbles contained in a cured product of the silicone composition and prevent a reduction in the strength of the cured product. The method of preserving the composition is characterized by keeping each packaged agent of the curable silicone composition under reduced pressure.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: April 29, 2003
    Assignee: Tokuyama Corporation
    Inventors: Hiroyuki Nakagawa, Toshio Kawaguchi, Yasuhiro Hosoi
  • Publication number: 20030077515
    Abstract: Electronically conductive composites of electronically conductive polymers and carbon nanotubes are formed by electrochemical or gel polymerisation of monomer in a carbon nanotube suspension. Electrical energy storage devices are produced from carbon nanotube/electronically conductive polymer composites.
    Type: Application
    Filed: April 2, 2001
    Publication date: April 24, 2003
    Inventors: George Zheng Chen, Derek John Fray, Mark Hughes, Milo Sebastian Peter Shaffer, Alan H. Windle
  • Patent number: 6521693
    Abstract: Provided is a long fiber-reinforced polypropylene resin composition which provides a molded article excellent in a mechanical strength and an impact resistance and having a small anisotropy in a strength, so that it can suitably be used even for uses in medium-sized to large-sized molded articles. The long fiber-reinforced polypropylene resin composition comprises 40 to 85% by weight of (A) a long fiber-reinforced propylene homopolymer pellet shown below and 15 to 60% by weight of (B) a propylene base block copolymer resin having the MFR of 50 g/10 min or less: (A): a long fiber-reinforced propylene homopolymer pellet comprising, (A1): 20 to 64.9% by weight of a modified propylene homopolymer obtained by modifying a propylene homopolymer with unsaturated carboxylic acid or an anhydride thereof or a mixture of the above modified propylene homopolymer and an unmodified propylene homopolymer, wherein an MFR is 60 g/10 min or more, (A2): 0.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: February 18, 2003
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Koichi Saito, Toshimori Nakai, Nobukazu Atsumi, Hitoshi Kuramochi
  • Publication number: 20030017280
    Abstract: Described are chiral liquid crystalline polymer materials and polymerizable compounds used for preparing them. The polymer materials can serve as a carrier material or are coated onto a carrier material. Also described are methods of making such material and using them to make pigment flakes used in paints, printing inks, spray paints, cosmetic products, colored plastics, optical elements and security applications.
    Type: Application
    Filed: July 3, 2001
    Publication date: January 23, 2003
    Inventors: Eike Poetsch, Gerhard Pfaff, Matthais Kuntz, Stephan Derow, David Coates
  • Patent number: 6495625
    Abstract: A chloroprene type rubber composition which comprises a chloroprene type rubber, a carbon black having an average stacking height Lc of at least 2 nm in a C axis direction of the layer planes in the crystallites, and a zinc powder.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: December 17, 2002
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yasushi Abe, Mitsuyuki Nakada, Isao Yamagishi, Kazuomi Aoki
  • Patent number: 6479582
    Abstract: A rubber composition is obtained which exhibit improved strength, abrasion resistance and antistatic properties, as well as low rolling resistance. The rubber composition is characterized as being rendered conductive by incorporating into rubber a silica filler having a conductive surface layer as composed of carbon or conductive tin oxide.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: November 12, 2002
    Assignee: Otsuka Chemical Co., Ltd.
    Inventors: Yukiya Hareyama, Hidetoshi Ogawa
  • Patent number: 6472462
    Abstract: This invention relates to a process for prebinding fiber materials by means of a pulverulent binder composition. It further relates to the use of the prebound fiber material for producing plastics moldings from fiber-reinforced unsaturated polyester resins or epoxy resins by laying up the prebound fiber material, saturating the fiber material with the unsaturated polyester resin or epoxy resin and forming the molding.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: October 29, 2002
    Assignee: Wacker-Chemie GmbH
    Inventors: Klaus Kohlhammer, Abdulmajid Hashemzadeh, Claudia Schmidt
  • Patent number: 6441083
    Abstract: The present invention provides: a fine particles-dispersed composition that has extremely good dispersibility even if a polyamidic acid is contained in the composition; and a production process for such a composition. The polyamidic acid-containing and fine particles-dispersed composition comprises fine particles and a polar solvent solution, wherein the fine particles are dispersed in the polar solvent solution using an organic polymer as a dispersant, and this composition further comprises a polyamidic acid.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: August 27, 2002
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Tomoyuki Kuwamoto, Tsuyoshi Yamashita, Hayato Ikeda
  • Patent number: 6410642
    Abstract: An adhesive composition for bonding of semiconductor chips to their chip mounting component comprising a curable polymer composition that comprises a spherical filler having an average particle size from greater than 100 to 1,000 &mgr;m and an aspect ratio of 1 to 1.5. Semiconductor devices according to this invention are characterized in that a semiconductor chip therein is bonded to the mounting component for said chip by the aforementioned adhesive.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: June 25, 2002
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Kimio Yamakawa, Minoru Isshiki, Katsutoshi Mine
  • Patent number: 6395832
    Abstract: A polyolefin composition comprising (percentage by weight): (A) from 40 to 60% of a broad molecular weight distribution propylene polymer (component A) having a polydispersity index from 5 to 15 and melt flow rate of from 80 to 200 g/10 min (according to ASTM-D 1238, condition L); and (B) from 40 to 60% of a partially xylene-insoluble olefin polymer rubber (component B) containing at least 65% by weight of ethylene; the IVS/IVA ratio between the intrinsic viscosity (IVS) of the portion soluble in xylene of the polyolefin composition at room temperature and the intrinsic viscosity (IVA) of component (A) ranging from 2 to 2.5, both values on intrinsic viscosity being measured in tetrahydronaphthalene at 135° C. Said composition finds application in automotive field.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: May 28, 2002
    Assignee: Baselltech USA Inc.
    Inventors: Anteo Pelliconi, Giovanni Galetti, Paolo Ferrari
  • Patent number: 6376603
    Abstract: A titanium oxide-filled addition reaction-curable silicone rubber composition including (A) a diorganopolysiloxane containing at least two alkenyl groups in one molecule, (B) an organohydrogenpolysiloxane containing in one molecule at least two silicon-bonded hydrogen atoms, (C) a platinum group metal catalyst, and (D) a titanium oxide powder having been surface-treated with a compound selected from the group consisting of a tetraalkoxysilane and a partial hydrolysis-condensation product of a tetraalkoxysilane; the titanium oxide powder being contained in an amount not less than 15 parts by weight based on 100 parts by weight of the component (A). The composition has a low viscosity and low thixotropic properties and easy to handle, even though it contains titanium oxide in a large quantity, and especially has a superior operability when used as a light-screening agent or a reflecting agent.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: April 23, 2002
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Tsutomu Kashiwagi
  • Patent number: 6376060
    Abstract: A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: April 23, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
  • Patent number: 6368725
    Abstract: Process for the preparation of a powder lacquer composition based on polyester by a) common or separate heating to a temperature of 120-200° C. of A) 99-40 wt. % polyester precondensates, and/or of monomers usable for the preparation thereof, B) 1-60 wt. % pigments and C) 0-10 wt. % wetting additives and/or further additives which are conventionally used for lacquers, wherein the percentages by weight total 100%, b) homogeneous mixing of the components A), B) and C) with the application of shear forces and with the heating temperature maintained, c) dispersion of the mixture obtained in a dispersing medium at a temperature equal to or above the melting temperature of the starting components A), B) and C) with further polycondensation of the polyester precondensate A), and/or of the monomers, d) cooling of the dispersion and addition of a conventional cross-linking agent for the polyester and optionally of conventional additives, within the temperature range 60 to 140° C.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: April 9, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Knut Gräf, Hans-Ulrich Simmrock, Alexandra Jacobs, Volker Mörs, Bennett Ward
  • Patent number: 6369155
    Abstract: To a fluorosilicone rubber composition comprising an organopolysiloxane having trifluoropropyl groups, a microparticulate silica filler, and a curing agent, there is added a specific amount of a linear organopolysiloxane oil having trifluoropropylmethylsiloxy groups in its backbone and having no crosslinked points in its molecule. The composition cures into fluorosilicone rubber experiencing minimized swell upon immersion in fuel oil and having satisfactory mechanical strength.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: April 9, 2002
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Kenichi Takita
  • Patent number: 6369157
    Abstract: A blend of a macrocyclic polyester oligomer and a polymerization catalyst as a one component ready-to-use material with a long shelf life enables production of parts from macrocyclic polyester oligomers without the modification of existing equipment, thereby reducing time and cost of manufacture while expanding the application of macrocyclic polyester oligomers. In this blend material, the macrocyclic polyester oligomer remains intact in solid state at ambient conditions. Upon melting, the blend material initially forms low viscosity fluid, and then rapidly polymerizes to form high molecular weight polyesters which subsequently solidify to form crystalline polymers. In the case of certain macrocyclic polyester oligomers, for example, poly(1,4-butylene terephthalate), demolding can take place at the polymerization temperature, e.g., at about 180° C. to 200° C., because the resulting polyester polymer solidifies fairly rapidly at that temperature without cooling.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: April 9, 2002
    Assignee: Cyclics Corporation
    Inventors: Steven J. Winckler, Tohru Takekoshi
  • Patent number: 6362251
    Abstract: Dental material based on polymerizable (for example ethylenically unsaturated) monomers, epoxides, ormocers, liquid crystal monomers, oxethanes, spiro-orthoesters or spiro-carbonates as binders, a catalyst for cold, hot and/or photo-polymerization, and fillers, and a process for its preparation. Porous glass ceramics, a process for their preparation and uses thereof are also described. Dental materials according to the invention are suitable as alternative materials to the use of amalgam fillings.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: March 26, 2002
    Assignee: Degussa-Huls Aktiengesellschaft
    Inventors: Jochen Alkemper, Harald Rentsch, Klaus Dermann, Hans-Joachim Ritzhaupt-Kleissl, Jurgen Hausselt, Philipp Albert, Corinna Gall
  • Patent number: 6348537
    Abstract: A coating agent comprising 50 to 99 parts by weight of a monomer or monomer mixture (M) composed of 50 to 100% by weight of a polyfunctional (meth)acrylate monomer (m-1) having two or more (meth)acryloyloxy groups and 0 to 50% by weight of a monofunctional (meth)acrylate monomer (m-2), and 1 to 50 parts by weight of colloidal silica, wherein the colloidal silica contains colloidal silica in a narrow and long form having an average diameter of 5 to 20 nm and an average length of 40 to 300 nm in an amount of 5 to 100% by weight based on the total colloidal silica weight; and a resin molded article having a coated layer obtained by hardening this coating agent, are disclosed. This colloidal silica-containing coating agent is excellent in appearance, hardness, abrasion resistance, weather resistance, adhesion with a substrate, no need of a solvent, and the like.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: February 19, 2002
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hideyuki Sugamoto, Osamu Kawai, Tetsuya Sawano
  • Patent number: 6340443
    Abstract: A polyester composition containing fine particles with an average size of 0.03-1.8 &mgr;m which have been surface-modified with polyester (B) of which less than 70 mole percent of the repeating units consist of ethylene terephthalate, butylene terephthalate or ethylene naphthalate units, in polyester (A) of which at least 70 mole percent of the repeating units consist of ethylene terephthalate, butylene terephthalate or ethylene naphthalate units. The composition has a filtration pressure increase rate of no greater than 10 kg cm2/hr when filtered using a double layer of 2400 mesh wire filters with an inner diameter of 64 mm&phgr;, a temperature of 290° C. and a filtration rate of 33.3 g/min.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: January 22, 2002
    Assignee: Teijin Limited
    Inventors: Hideshi Kurihara, Seiichi Takao, Kazumoto Miyajima, Shinya Yamamoto, Toru Takase
  • Patent number: 6335380
    Abstract: Fluid silico-acrylic compositions, which can be polymerised by heat and radiation, by radical-type mechanism, with very low water (less than 1%) and volatile solvent content, containing silica, a silane and a multifunctional acrylic monomer, in which the silica is in the form of individualised particles, with a mean diameter of between 40 and 100 nm, not linked to each other by siloxane bonds, and the silane is a vinylsilane of formula (I) H2C═CH—Si(OR)3  (I) in which R represents a methyl or ethyl radical and the multifunctional acrylic monomer is 1,6-hexanediol diacrylate, and which are transparent, colourless and stable over time.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: January 1, 2002
    Assignee: Clariant (France) S.A.
    Inventors: Didier Wilhelm, Armand Eranian, Philippe Vincent
  • Patent number: 6333386
    Abstract: A relatively small amount of a plasticizer having an SP value of at least 8.8 and a molecular weight of at most 550 is added to blend rubber of NBR-PVC in which NBR has an AN content of from 43 to 50% by weight. The fuel impermeability and the low-temperature flexibility of the resulting rubber composition are improved to be comparable to those of FKM, and the amount of the plasticizer and its reaction product to be released from the rubber composition in fuel is reduced. Adding a controlled amount of carbon black to the rubber composition makes the composition have favorable electroconductivity. The rubber composition is formed into hoses or electroconductive hoses of low fuel permeation.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: December 25, 2001
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Takahiro Nishiyama, Shinobu Kanbe, Atsuo Miyajima, Kazuhiro Kato
  • Patent number: 6329062
    Abstract: A two-component porous material including small silicalite crystals in a porous binder provides a low dielectric constant material useful as an insulating layer in microelectronic devices. The silicalite/binder porous material uses silicalite nanocrystals smaller than the characteristic dimensions of the features on the integrated circuit device. The binder is an amorphous porous material that links the silicalite nanocrystals together, formed from a precursor which polymerizes on heating. The silicalite nanocrystals are supplied as a colloidal suspension or slurry. The slurry and binder precursor are spincoated onto a substrate and thermally treated to polymerize the binder precursor and drive off solvent in the slurry, forming the porous silicalite/binder material. The silicalite/binder porous material is readily integrated into standard damascene fabrication processes.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: December 11, 2001
    Assignee: Novellus Systems, Inc.
    Inventor: Justin F. Gaynor
  • Patent number: 6306957
    Abstract: An organopolysiloxane, a hydrolyzable group-bearing methylpolysiloxane, a thermal conductive filler, and a curing agent are blended to form a silicone rubber composition which is minimized in viscosity or plasticity increase and remains effectively moldable and workable even when loaded with a large amount of the thermal conductive filler. It cures into a silicone rubber part having a high thermal conductivity.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: October 23, 2001
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Akio Nakano, Hiroshi Takei, Takeshi Hashimoto, Yuuki Sakurai
  • Patent number: 6300453
    Abstract: A composition capable of curing to form an elastomeric mass is disclosed which comprises a polymeric material having at least one hydroxyl or hydrolyzable group bonded to silicon, a crosslinking agent of the formula R—Si—(OR1)3 wherein R denotes an alkyl group having from 4 to 8 carbon atoms and each R1 independently denotes an alkyl or acyl group having from 1 to 20 carbon atoms and a catalyst compound comprising a titanium compound. A method of using the composition as a sealing material is also disclosed.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: October 9, 2001
    Assignee: Dow Corning S.A.
    Inventors: Francios De Buyl, Jean-Paul Lecomte
  • Patent number: 6294636
    Abstract: A silicone rubber composition, comprising: (A) an polyorganosiloxane gum represented by the following average structural formula: RaSiO(4−a)/2 (where R is a substituted or non-substituted monovalent hydrocarbon, and a is a number between 1.8 and 2.3); (B) microparticulate silica; and (C) a methyl-substituted benzoyl peroxide having the maximum grain diameter not exceeding 50 &mgr;m and an average grain diameter of 30 &mgr;m. When cured, the silicone rubber composition has reduced nonuniformity in the physical properties because of fewer voids, resulting in decreased frequency of spark-outs in the insulated wires.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: September 25, 2001
    Assignee: Dow Corning Toray Silicone Company, Ltd.
    Inventors: Katsuya Baba, Kazuo Hirai, Takao Matsushita
  • Patent number: 6265480
    Abstract: A silicone gel composition comprising (A) 100 parts by weight of an organopolysiloxane comprising 80 to 98 mole % of R(CH3)SiO2/2 units, 0.1 to 10.0 mole % of RSiO3/2 units, and 0.1 to 10 mole % of R(CH3)2SiO1/2 units, wherein R is methyl, phenyl, or alkenyl, and provided 0.25 to 4.0 mole % the R groups in the organopolysiloxane are alkenyl; (B) an organopolysiloxane having an average of at least 2 silicon-bonded hydrogen atoms per molecule in an amount sufficient to provide from 0.1 to 5 silicon-bonded hydrogen atoms per alkenyl group in component (A); (C) a platinum catalyst; (D) 0.01 to 10 parts by weight of a silica powder; and (E) 0.01 to 5 parts by weight of a thixotropic agent selected from at least one epoxy compound, at least one polyhydric alcohol, and mixtures thereof; wherein the silicone gel composition has an apparent viscosity ratio of 2.0 to 10.0 and cures to form a silicone gel having a ¼ consistency of 10 to 200.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: July 24, 2001
    Assignee: Dow Corning Toray Silicone Company, Ltd.
    Inventors: Hiroji Enami, Akihiro Nakamura
  • Patent number: 6265529
    Abstract: Disclosed is an antistatic monomer-cast nylon (MC nylon) polymer. The MC nylon polymer includes graphite particles nonuniformly distributed in an MC nylon polymer structure. The graphite particles are partially agglomerated and form a micro-domain phase. The antistatic MC nylon has volume specific resistance of about 105 &OHgr;·cm to about 109&OHgr;·cm. Also disclosed is a method of producing antistatic MC nylon. A mixture comprising a monomer of the nylon and graphite is prepared and cast in a mold. The mixture is stirred to disperse the graphite and the monomer polymerizes to form an antistatic MC polymer.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 24, 2001
    Assignee: Polypenco Korea Company Limited
    Inventors: Dae-won Chung, Chang-Hoon Kim
  • Patent number: 6254981
    Abstract: The disclosure describes methods for producing bulk, particulate material that includes solid, generally ellipsoidal particles. Irregularly shaped feed particles with average particle sizes of up to 25 microns on a volume basis are dispersed in at least a portion of a combustible gas mixture by application of force and/or fluidizing agents. The combustible mixture with particles in suspension is then delivered, while controlling agglomeration or re-agglomeration of the particles, to at least one flame front. There, the mixture and suspended particles are uniformly distributed across the surface(s) of and passed through the flame front(s) with a high concentration of particles in the mixture. This flame front and the resultant flame(s) with suspended particles are located in at least one “wall free” zone. In such zone(s) the flame(s) may expand while the particles are maintained in dispersion and heated, with controlled and highly efficient application of heating energy.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: July 3, 2001
    Assignee: Minnesota Mining & Manufacturing Company
    Inventor: Richard B. Castle
  • Patent number: 6251513
    Abstract: A composition and devices utilizing these compositions for providing protection against electrical overstress including a matrix formed of a mixture of an insulating binder, conductive particles having an average particle size of less than 10 microns, and semiconductive particles having an average particle size of less than 10 microns. The compositions exhibit improved clamping voltages in a range of about 30 volts to greater than 2,000 volts.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: June 26, 2001
    Assignee: Littlefuse, Inc.
    Inventors: Louis Rector, Hugh M. Hyatt
  • Patent number: 6218465
    Abstract: For example, a blended composition is produced first by letting a monomer composition, mainly composed of alkyl (meth)acrylate and including a compound having a plurality of polymeric groups within a molecule, contain microscopic particles, such as carbon black, having an average primary particle size in a range between 1 nm and 200 nm, and then the blended composition is polymerized. Consequently, it has become possible to produce inexpensive crosslinked elastomer having excellent physical properties, such as small creep (low creep) in compression set, tensile elongation set, etc., and excellent mechanical strength, such as tensile break strength and tensile break elongation, in a simple procedure omitting the post-crosslinking step at a high-level productivity while saving energy and time spent in the kneading step.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: April 17, 2001
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Minoru Kobayashi, Minoru Aoki, Yoshinobu Asako, Akihiko Fukada, Hayato Ikeda
  • Patent number: 6214467
    Abstract: Polymer-pigment composites, aqueous dispersions of polymer-pigment composites and coating compositions containing the polymer-pigment composites are disclosed, wherein the polymer is formed from terminally-unsaturated oligomers containing acid functionality.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: April 10, 2001
    Assignee: Rohm and Haas Company
    Inventors: Steven Scott Edwards, John Michael Friel, Bernhard Helmut Lieser, Alvin Michael Maurice, Edwin Hugh Nungesser, Robert David Solomon
  • Patent number: 6210520
    Abstract: The present invention provides a novel screen printable thermosetting composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electronic device to a heat dissipation device such as a heat sink. The composition comprises by weight from about 35% to about 75% of a thermal curing vinyl terminated siloxane material, from about 0.005% to about 5% catalyst, from about 10% to about 30% hydrocarbon solvent and from about 20% to about 70% conductive filler.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: April 3, 2001
    Assignee: Ferro Corporation
    Inventors: Jesus E. Osuna, Keith M. Mason, Vernon E. Stygar
  • Patent number: 6210294
    Abstract: A golf ball comprising a center, a cover, and optionally, at least one intermediate layer disposed between the center and the cover, wherein at least one of the center, the cover, and the at least one intermediate layer is formed with a polyurethane composition comprising a reaction product of a prepolymer of at least one polyol and at least one polyisocyanate, and a curing agent of at least one diol. A polyurethane composition, suitable for forming golf equipment, said composition comprising a reaction product of a prepolymer of at least one polyol and at least one polyisocyanate, and a curing agent of at least one diol.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: April 3, 2001
    Assignee: Acushnet Company
    Inventor: Shenshen Wu
  • Patent number: 6201038
    Abstract: The present invention provides hydrophilically modified curable silicone dental impression materials comprising an addition curable silicone prepolymer composition and a polymerizable hydrophilic modifier. The addition curable silicone prepolymer in the composition of the present invention comprises blended vinyl terminated organopolysiloxane fluids, an organohydrogen polysiloxane crosslinker, a platinum catalyst, a retarder, filler and optional additives. The cured compositions have a stable hydrophilic nature, excellent mechanical properties, and maximum long-term dimensional stability.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: March 13, 2001
    Assignee: Kerr Corporation
    Inventors: Duncan E. Waller, Xiaoyi Xie
  • Patent number: 6177231
    Abstract: A resist material having a resist and particles mixed into the resist, a major component of the particles being a cluster of carbon atoms, is provided. A method for fabricating a resist material is also provided, the method repeatedly performing: a first step of coating a substrate with a resist film; and a second step of depositing particles whose major component is a cluster of carbon atoms on the resist film. Accordingly, a resist film with high etching resistance can be obtained, and it is possible to realize a reduction in the thickness of the resist film, improvements of contrast of resist patterns; resist sensitivity; heat resistance of resist films; mechanical strength of resist patterns; and further, stabilization of resist sensitivity. Therefore, highly precise fine pattern fabrication can be realized.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: January 23, 2001
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Tetsuyoshi Ishii, Toshiaki Tamamura, Hiroshi Nozawa, Kenji Kurihara