Patents Examined by Tae Yoon
  • Patent number: 5557018
    Abstract: Selected partially fluorinated .alpha.,.omega.-dienes can be (co)polymerized to form polymers in which cyclic structures are present. A novel free radical polymerization process, in which the polymer obtained is dependent on the initiator used, is described. The polymers are useful for films, coatings and molded parts.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: September 17, 1996
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Bruce E. Smart, Zhen-Yu Yang
  • Patent number: 5553714
    Abstract: Provided is a method for tagging thermoplastic containers using near infrared fluorescing compounds or copolymerized residues readily capable of detection. Also provided is a method for identifying a thermoplastic container. Also provided are thermoplastic polymer compositions comprised of the near infrared fluorescing compounds or residues and articles comprised of such compositions.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: September 10, 1996
    Assignee: Eastman Chemical Company
    Inventors: Michael R. Cushman, James J. Krutak, William W. Parham, Clarence A. Coates, Max A. Weaver, Gabor Patonay
  • Patent number: 5552455
    Abstract: The invention is a radar absorbing material and a process for making same. In detail, the invention includes a binder material containing a mixture of two groups of spheres made of a magnetic material, The first group of spheres have an average diameter and the second group have an average diameter generally 0.73 times the average diameter of the spheres of the first group. The first and second group contain generally equal numbers of spheres. The amount of the binder material incorporated is sufficient to both bind mixture together while maintaining the individual spheres separated from each other. The process involves the steps of: providing a first group of spheres made of a magnetic material; providing a second group of spheres made of a magnetic material containing a number of spheres equal to the number of spheres of the first group with an average diameter of generally 0.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: September 3, 1996
    Assignee: Lockheed Corporation
    Inventors: Ann M. Schuler, Burl C. Fisher, Jr., Denys D. Overholser
  • Patent number: 5552512
    Abstract: Disclosed are thermoplastic copolyesters having improved gas barrier properties and which can be produced having little or no acetaldehyde. These copolyesters are especially useful in the manufacture of food packaging products, foodtrays, film and beverage bottles which require good oxygen and carbon dioxide barrier properties. The copolyesters comprise repeat units from about 10 to 100 mole percent repeat units from naphthalene dicarboxylic acid, about 90 to 0 mole percent repeat units from terephthalic acid and repeat units from essentially 100 mole percent 1,4-cyclohexanedimethanol, wherein said 1,4-cyclohexanedimethanol has a cis isomer content of at least 50% said copolyester having an I.V. of about 0.4-1.2.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: September 3, 1996
    Assignee: Eastman Chemical Company
    Inventor: Bobby J. Sublett
  • Patent number: 5550202
    Abstract: A coating resin comprising a polymer obtained by polymerizing an unsaturated monomer represented by the formula (I): ##STR1## wherein R is H or an alkyl group, and X is selected from: ##STR2## wherein R.sup.1 to R.sup.8 represent independently a hydrocarbon group, etc., and Py is a pyridyl group, alone or together with one or more other unsaturated monomers can give an antifouling coating composition having no safety problem, good storage stability and excellent antifouling effect for a long period of time.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: August 27, 1996
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Seiji Tai, Hisanori Takusari, Hiroyuki Tanaka, Isamu Moribe, Chie Ohdoi
  • Patent number: 5547722
    Abstract: An ethylene homopolymer or copolymer comprising ethylene and not more than 10% by weight of an .alpha.-olefin having from 3 to 20 carbon atoms and a fuel tank obtained therefrom are disclosed, said ethylene homopolymer or copolymer having (1) an intrinsic viscosity [.eta.] of from 2 to 6 dl/g, (2) a density of from 0.945 to 0.970 g/cm.sup.3, (3) an R value of from 2.5 to 4, said R value being defined as a .sigma..sub.2 /.rho..sub.1 ratio, wherein .sigma..sub.1 and .sigma..sub.2 mean stress in elongation with a strain at 2 sec and 4 sec, respectively, under a flow at an elongational strain rate .epsilon. of 0.5 sec.sup.-1, and (4) a relationship between high-velocity impact strength (HRI-IZOD) measured at -30.degree. C. and a melt index under a load of 21.6 kg (HLMI) satisfying formula:HRI-IZOD.gtoreq.-log HLMI+1.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: August 20, 1996
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Yumito Uehara, Nobuo Enokido, Kiyotoshi Fujioka, Nobuyuki Shimizu, Motonori Ueda
  • Patent number: 5543228
    Abstract: A holographic optical element or other similar molded article using glass as a substrate is improved in the adhesion between the glass substrate and a resin layer formed thereon so that neither peeling nor change of properties will occur. A holographic optical element (4) is adapted to generate interference fringes of the same pitch as that of tracks formed on a magnetic recording disk or repeated patterns formed on an encoder by interference between two light beams emerging from two different holographic lens regions. The holographic optical element (4) includes a glass substrate (3), a radiation-cured resin layer (2) having a hologram relief pattern on the surface thereof, and a silane coupling agent layer (5) provided between the glass substrate (3) and the radiation-cured resin layer (2).
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: August 6, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yukio Taniguchi, Tsuyoshi Hotta, Yuko Kuwabara, Hideaki Morita, Toshikazu Segawa
  • Patent number: 5543453
    Abstract: A composition for fixing water-color ink for fixing a water-color ink is disclosed. The composition for fixing a water-color ink contains an ion exchanger, such as, a clay based interlayer compound or an ion-exchange resin. The composition for fixing water-color ink contains a water absorptive resin or a heat-melting resin as a binder. A cover film for thermal transfer is formed by forming a water-color ink fixing layer consisting of the composition for fixing water-color ink peelably on a base material. An adhesive layer or a heat-melting resin layer is formed on the water-color ink fixing layer. The cover film for thermal transfer image is superposed and thermo-compression bonded onto a thermal transfer image or a thermal transfer image having a protective layer, with the water-color ink fixing layer, the adhesive layer or the heat-melting resin layer facing the thermal transfer image or the thermal transfer image having the protective layer.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 6, 1996
    Assignee: Sony Corporation
    Inventors: Kengo Ito, Motohiro Mizumachi, Yoshio Fujiwara, Satoru Shinohara
  • Patent number: 5541248
    Abstract: A coating composition comprising hydrogen silsesquioxane resin and a phosphor filler diluted in a solvent. These compositions are used to form luminescent coatings on substrates.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 30, 1996
    Assignee: Dow Corning Corporation
    Inventors: Loren A. Haluska, Keith W. Michael, Udo C. Pernisz
  • Patent number: 5541252
    Abstract: The invention relates to a process for the preparation of low viscous, water soluble polymer dispersions on an aqueous basis with a high concentration of the active substance, containing a polymerizate A) synthesized from the monomeric components, hydrophobic monomers and optionally amphiphilic monomers, which exhibit an average molecular weight M.sub.w of at least 5.times.10.sup.5 Dalton and contain at least one polymeric dispersing agent D), where in a first step an aqueous dispersion PD) is prepared from the polymerizate A) and at least one polymeric dispersing agent D); in a second step an aqueous, highly concentrated dispersion PD') is prepared from the aqueous dispersion PD) by extracting the water; and in a third step an aqueous dispersion PD") with a high content of the active substance is prepared through the addition of an aqueous dispersion of at least one polymeric dispersing agent D) to the concentrated dispersion PD'), and where the second and third process step can be repeated in succession.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: July 30, 1996
    Assignee: Rohm GmbH
    Inventors: Gunter Schmitt, Joachim Carl, Manfred Braum, Peter Quis, Petra Schliessmann
  • Patent number: 5541240
    Abstract: Blends of thermotropic liquid crystalline polymers and isotropic melt-processable polymers are made by extruding a molten stream of either a thermotropic liquid crystalline polymer or an isotropic polymer through a heated mixing zone and feeding the other of the two polymers into the stream of the first polymer in the mixing zone. The polymers are mixed under shearing conditions for a time sufficient to yield a uniform blend. Blends made according to this method exhibit improved properties in comparison with blends obtained by feeding the two polymers simultaneously into a heated mixing zone.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: July 30, 1996
    Assignee: Hoechst Celanese Corp.
    Inventors: Subhash Makhija, George L. Lundberg, James B. Stamatoff
  • Patent number: 5539051
    Abstract: There are disclosed a resin composition for coating which comprises a mixture of(i) a non-aqueous dispersion type resin containing(A) a vinyl polymer soluble in an organic solvent mainly comprising an aliphatic hydrocarbon, and(B) a vinyl polymer particle which is insoluble in the organic solvent and obtained by polymerizing a polymerizable unsaturated compound in the organic solvent using the vinyl polymer (A) as a dispersant, and(ii) a solvent type resin of(C) a vinyl polymer having a silyl group represented by the formula (I) which is soluble in the organic solvent: ##STR1## wherein R.sup.1 represents an alkyl group, an aryl group or an aralkyl group, X represents a halogen atom, an alkoxy group, an acyloxy group or a hydroxy group, and k is an integer of 1 to 3,and a paint containing the same.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: July 23, 1996
    Assignee: Hitachi Chemical Company Co., Ltd.
    Inventors: Kuniaki Satou, Tsutomu Mamiya, Takashi Amano, Akira Hironaka
  • Patent number: 5536791
    Abstract: The present invention relates to wire coatings which containa) 20 to 50% by weight of a tris-2-hydroxyethyl isocyanurate-modified polyester,b) 2 to 35% by weight of a bismaleimide resin,c) 0.1 to 3% by weight of a catalyst, preferably a titanate catalyst, andd) 35 to 77% by weight of organic solvents, with respect to the total weight of the wire coating, which is 100% by weight. The invention also relates to processes for the preparation of the wire coatings according to the invention.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Lacke + Farben, AG
    Inventors: Michael Schink, Gerold Schmidt, Klaus W. Lienert, Roland Peter
  • Patent number: 5536770
    Abstract: A conductive coating formulation comprising(i) from 5-25% by weight of a binder comprising a mixture ofa) from 40 to 60% by weight of an acrylic resin, andb) from 60 to 40% by weight of modified PVC,(ii) from 60-85% by weight of a solvent mixture comprising ester, aromatic and ketone solvents in a ratio of from 0.9:2.5:1.2 to 1.1:2.7:1.4, and(iii) from 5-25% by weight of an electrically conducting pigment.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: July 16, 1996
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Ralf Glausch, Wolfgang Maus, Norbert Stenzel
  • Patent number: 5534616
    Abstract: A supported or cast film of a polyhydroxyalkanoate polymer, such as a polyhydroxybutyrate/valerate polymer, can be prepared by applying a layer of molten polymer to a cool (typically 4.degree. to 20.degree. C.) surface not substantially above the glass transition temperature of the polymer, so as to form a solid, glassy film with a high density of nucleation sites; subsequently the temperature of the film so formed is raised, for example to 40.degree. C. or more, towards the optimum temperature for growth of the polymer's spherulites effectively separating the film formation/nucleation step from the crystallisation step (growth of spherulites around the nucleation sites). Smaller crystallites are formed, and the film has improved barrier properties.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: July 9, 1996
    Assignee: Zeneca Limited
    Inventor: Simon D. Waddington
  • Patent number: 5529873
    Abstract: A toner for developing electrostatic images which comprises a toner particle produced by polymerizing a polymerizable monomer composition,wherein the toner particle contains 0.1-9.0% by weight of a modified polyester resin having one or more monomer units selected from a group consisting of styrene type monomer, acrylic monomer, and methacrylic monomer 16-50% by weight of a wax having a melting point of 50.degree.-95.degree. C., and 0.01-5.0% by weight of a charge controlling agent;the resin component of the toner particle has a weight average molecular weight of 5,000-45,000;and the toner particle has water absorption of 300-5,000 ppm.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: June 25, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuhiko Chiba, Takashige Kasuya, Tatsuya Nakamura, Makoto Kanbayashi, Kazuyuki Miyano, Koji Inaba
  • Patent number: 5530056
    Abstract: Freeze-thaw stable latex binders and latex paint compositions are prepared without the use of volatile freeze-thaw additives. The latex binder contains a polymer which is the emulsion polymerization product of a polymerizable polyethylene glycol (PPEG) monomer, wherein the molecular weight of the ethylene oxide moiety in the PPEG monomer is from about 175 to 1,100, at least one acrylic monomer and, optionally, one or more styrenic, ionic or wet adhesion monomers. Methods for preparing the freeze-thaw stable latex compositions are also disclosed.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: June 25, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Rajeev Farwaha, Lien Phan, William Currie
  • Patent number: 5524422
    Abstract: Low-moisture outgassing of hermetic packages can be achieved with a monomer having at least one OCN functional group.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: June 11, 1996
    Assignee: Johnson Matthey Inc.
    Inventor: My N. Nguyen
  • Patent number: 5525658
    Abstract: Melt processed articles of improved color and odor can be produced from hydroxyalkanoic acid polymers if they are melt processed in the presence of a temperature stable sulphite salt, and compositions for use in such processes are disclosed.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: June 11, 1996
    Assignee: Zeneca Limited
    Inventors: John M. Liddell, William Greer
  • Patent number: 5523340
    Abstract: An anionic electrodepositable coating composition for making pigment dispersed color filters comprising: (a) a pigment; (b) a first addition copolymer containing pyrrolidone and hydroxy groups; (c) a second addition copolymer containing carboxyl and hydroxy groups; and (d) a low molecular weight amine. The pyrrolidone-containing monomer can be N-vinyl-2-pyrrolidone or a pyrrolidone-containing acrylate-based monomer represented by the following formula: ##STR1## wherein R is hydrogen atom, or methyl or ethyl group, and n is an integer between 1.about.3. The first addition copolymer has a weight average molecular weight between 1,000 and 20,000 and is prepared from a monomer composition comprising about 0.5.about.90 mole percent of a pyrrolidone-containing unsaturated monomer and about 1.about.50 mole percent of a hydroxy-containing unsaturated monomer. The second addition copolymer has a weight average molecular weight between 5,000 and 60,000 and is prepared from a monomer composition comprising about 5.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: June 4, 1996
    Assignees: Industrial Technology Research Institute, Nan Ya Plastics Corp.
    Inventors: Chao-Wen Niu, Jim-Chyuan Shieh, Pao J. Hsieh, Wen R. Lin, Hsien K. Lin