Patents Examined by Tae Yoon
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Patent number: 5557018Abstract: 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: GrantFiled: September 13, 1995Date of Patent: September 17, 1996Assignee: E. I. du Pont de Nemours and CompanyInventors: Bruce E. Smart, Zhen-Yu Yang
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Patent number: 5553714Abstract: 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: GrantFiled: November 14, 1994Date of Patent: September 10, 1996Assignee: Eastman Chemical CompanyInventors: Michael R. Cushman, James J. Krutak, William W. Parham, Clarence A. Coates, Max A. Weaver, Gabor Patonay
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Patent number: 5552455Abstract: 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: GrantFiled: August 31, 1995Date of Patent: September 3, 1996Assignee: Lockheed CorporationInventors: Ann M. Schuler, Burl C. Fisher, Jr., Denys D. Overholser
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Patent number: 5552512Abstract: 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: GrantFiled: October 6, 1995Date of Patent: September 3, 1996Assignee: Eastman Chemical CompanyInventor: Bobby J. Sublett
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Patent number: 5550202Abstract: 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: GrantFiled: April 11, 1994Date of Patent: August 27, 1996Assignee: Hitachi Chemical Co., Ltd.Inventors: Seiji Tai, Hisanori Takusari, Hiroyuki Tanaka, Isamu Moribe, Chie Ohdoi
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Patent number: 5547722Abstract: 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: GrantFiled: March 31, 1995Date of Patent: August 20, 1996Assignee: Mitsubishi Kasei CorporationInventors: Yumito Uehara, Nobuo Enokido, Kiyotoshi Fujioka, Nobuyuki Shimizu, Motonori Ueda
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Patent number: 5543228Abstract: 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: GrantFiled: November 10, 1993Date of Patent: August 6, 1996Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yukio Taniguchi, Tsuyoshi Hotta, Yuko Kuwabara, Hideaki Morita, Toshikazu Segawa
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Patent number: 5543453Abstract: 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: GrantFiled: June 6, 1995Date of Patent: August 6, 1996Assignee: Sony CorporationInventors: Kengo Ito, Motohiro Mizumachi, Yoshio Fujiwara, Satoru Shinohara
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Patent number: 5541248Abstract: 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: GrantFiled: June 2, 1995Date of Patent: July 30, 1996Assignee: Dow Corning CorporationInventors: Loren A. Haluska, Keith W. Michael, Udo C. Pernisz
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Patent number: 5541252Abstract: 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: GrantFiled: April 12, 1995Date of Patent: July 30, 1996Assignee: Rohm GmbHInventors: Gunter Schmitt, Joachim Carl, Manfred Braum, Peter Quis, Petra Schliessmann
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Patent number: 5541240Abstract: 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: GrantFiled: March 15, 1994Date of Patent: July 30, 1996Assignee: Hoechst Celanese Corp.Inventors: Subhash Makhija, George L. Lundberg, James B. Stamatoff
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Patent number: 5539051Abstract: 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: GrantFiled: October 15, 1993Date of Patent: July 23, 1996Assignee: Hitachi Chemical Company Co., Ltd.Inventors: Kuniaki Satou, Tsutomu Mamiya, Takashi Amano, Akira Hironaka
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Patent number: 5536791Abstract: 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: GrantFiled: June 29, 1994Date of Patent: July 16, 1996Assignee: BASF Lacke + Farben, AGInventors: Michael Schink, Gerold Schmidt, Klaus W. Lienert, Roland Peter
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Patent number: 5536770Abstract: 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: GrantFiled: October 14, 1994Date of Patent: July 16, 1996Assignee: Merck Patent Gesellschaft Mit Beschrankter HaftungInventors: Ralf Glausch, Wolfgang Maus, Norbert Stenzel
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Patent number: 5534616Abstract: 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: GrantFiled: July 13, 1995Date of Patent: July 9, 1996Assignee: Zeneca LimitedInventor: Simon D. Waddington
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Patent number: 5529873Abstract: 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: GrantFiled: April 18, 1994Date of Patent: June 25, 1996Assignee: Canon Kabushiki KaishaInventors: Tatsuhiko Chiba, Takashige Kasuya, Tatsuya Nakamura, Makoto Kanbayashi, Kazuyuki Miyano, Koji Inaba
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Patent number: 5530056Abstract: 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: GrantFiled: May 3, 1995Date of Patent: June 25, 1996Assignee: National Starch and Chemical Investment Holding CorporationInventors: Rajeev Farwaha, Lien Phan, William Currie
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Patent number: 5524422Abstract: Low-moisture outgassing of hermetic packages can be achieved with a monomer having at least one OCN functional group.Type: GrantFiled: May 2, 1995Date of Patent: June 11, 1996Assignee: Johnson Matthey Inc.Inventor: My N. Nguyen
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Patent number: 5525658Abstract: 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: GrantFiled: January 24, 1995Date of Patent: June 11, 1996Assignee: Zeneca LimitedInventors: John M. Liddell, William Greer
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Patent number: 5523340Abstract: 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: GrantFiled: January 23, 1995Date of Patent: June 4, 1996Assignees: Industrial Technology Research Institute, Nan Ya Plastics Corp.Inventors: Chao-Wen Niu, Jim-Chyuan Shieh, Pao J. Hsieh, Wen R. Lin, Hsien K. Lin