Patents Examined by Jeffrey T. Smith
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Patent number: 5696185Abstract: Aqueous dispersions of polymers which have a high glass transition temperature and a low average molecular weight and contain a specific amount of methacrylic acid as polymerized units are suitable, in liquid or dried form, as additives for improving the flow behavior of cement-containing mineral building materials having binding properties.Type: GrantFiled: July 17, 1996Date of Patent: December 9, 1997Assignee: BASF AktiengesellschaftInventors: Wilhelm Friedrich Beckerle, Rolf Petri, Bernhard Dotzauer, Manfred Schwartz, Maximilian Angel
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Patent number: 5686523Abstract: Stable alkoxy silane containing compositions and methods for the preparation of a stable silane containing compositions comprising: (I) a water insoluble or slightly soluble alkoxy silane; (II) emulsifier; (III) water; and (IV) water dispersible or emulsified polymer containing an alkoxy silane functional group. Also provided are two part systems such that an alkoxy silane emulsion comprising components (I)-(III) are combined and the component (IV) may be added upon use of components (I) to (III). Moreover, additional components, (V), such as catalysts and pH buffers may be added.Type: GrantFiled: October 6, 1995Date of Patent: November 11, 1997Assignee: OSi Specialties, Inc.Inventors: Ming J. Chen, Frederick D. Osterholtz, Eric R. Pohl, Antonio Chaves, Phil E. Ramadatt
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Patent number: 5681878Abstract: The present invention relates to pulverulent water-swellable hydrophilic (co)polymers which comprise, for reducing dusting, auxiliaries from the series consisting of silicones and/or other auxiliaries, the latter in a total amount of less than 1% by weight, for example polyglycols or polyglycol ethers, the vapor pressure of the individual auxiliaries being not more than 0.1 mbar at 20.degree. C. and their melting point being not more than 100.degree. C., processes for their preparation and their use for absorption of water and aqueous solutions.Type: GrantFiled: April 19, 1995Date of Patent: October 28, 1997Assignee: Cassella AktiengesellschaftInventors: Helmut Klotzsche, Gustav Remmel, Ulrich Riegel, Uwe Stuven
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Patent number: 5681885Abstract: In order to provide a coating material for formation of an antistatic/high refractive index film possessing superior antistatic effects, as well as an antistatic/anti-reflection film covered transparent material laminated body provided with superior antistatic effects and anti-reflection effects obtained by this coating material, and a cathode ray tube possessing this laminated body which is provided with antistatic effects, electromagnetic wave shielding effects, anti-reflection effects, and the effect of increase in contrast, the following are provided: a coating material comprising a dispersion fluid containing a mixture of an antimony doped tin oxide fine powder and a black colored electrically conductive fine powder; an antistatic/anti-reflection film covered transparent material laminated body containing a film layer of the coating material on the surface of a transparent substrate, and a specific low refractive index film layer; and a cathode ray tube possessing on its surface a first layer film contaiType: GrantFiled: July 18, 1996Date of Patent: October 28, 1997Assignee: Sumitomo Cement Co., Ltd.Inventors: Touru Kinoshita, Kenji Takahashi, Tsuneo Yanagisawa, Masaru Uehara, Hitoshi Kimata
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Patent number: 5672655Abstract: Disclosed herein are plastic optical materials having properties that rays in a specific visible range are absorbed, being low in specific gravity and easy to conduct processing or machining, and having excellent glare-proofness. One of the plastic optical material comprises an acrylic polymer containing a specific phosphate group represented by the formula PO(OH).sub.n -- (n being 1 or 2) of 0.5-60%, and a metal ion component comprising a neodymium ion of 0.04-10 parts based on 100 parts of the acrylic polymer, and has properties that rays in a wavelength range about 580 nm are absorbed. Another plastic optical material comprises 100 parts of the same acrylic polymer, and 0.1-12 parts of a metal ion component composed of a manganese ion in a predominant amount and a neodymium ion, and has properties that rays in wavelength ranges of 400-500 nm and 555-605 nm are absorbed with high efficiency.This plastic optical material is particularly suitable for use in plastic lenses for sunglasses.Type: GrantFiled: August 30, 1995Date of Patent: September 30, 1997Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Hiroki Katono, Masuhiro Shouji, Takeo Ogihara, Teruo Sakagami
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Patent number: 5670566Abstract: A carton, case or tray formed utilizing a hot melt adhesive composition said adhesive consisting essentially of a) 10 to 60% by weight of at least one ethylene n-butyl acrylate copolymer containing 25 to 45% by weight n-butyl acrylate and having a melt index of at least about 850; b) 20 to 60% of a rosin ester tackifying resin; c) 10 to 50% by weight of a microcrystalline or paraffin wax having a melting point of 150.degree. to 200.degree. F.; d) 1 to 20% by weight of a polymeric additive selected from the group consisting of ethylene vinyl acetate containing 10 to 40% by weight vinyl acetate, ethylene methyl acrylate polymers containing 10 to 28% methyl acrylate, ethylene acrylic acid copolymers having an acid number of 25 to 150, polyethylene, polypropylene, poly-(butene-1-co-ethylene), and lower melt index ethylene n-butyl acrylate copolymers; and e) 0 to 1.5% stabilizer, said adhesive characterized by a viscosity of less than 3000 cps at 135.degree. C., fiber tearing bonds from within the range of -35.Type: GrantFiled: January 6, 1995Date of Patent: September 23, 1997Assignee: National Starch and Chemical Investment Holding CorporationInventors: Ingrid Liedermooy, Daniel C. Stauffer, Paul P. Puletti
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Patent number: 5665817Abstract: Alkyl cyanoacrylate compositions comprising at least one alkyl cyanoacrylate, a biocompatible plasticizer (preferably dioctyl phthalate), and SO.sub.2 as an anionic polymerization inhibitor are provided. These compositions are suitable for topical application to human skin.Type: GrantFiled: December 26, 1995Date of Patent: September 9, 1997Assignee: MedLogic Global CorporationInventors: Richard J. Greff, Patrick J. Tighe, Michael M. Byram, Leonard V. Barley
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Patent number: 5661213Abstract: This invention relates to a formaldehyde-free curable aqueous composition containing a polyacid, a polyol and a phosphorous-containing accelerator. The composition may be used as a binder for heat resistant nonwovens such as nonwovens composed of fiberglass.Type: GrantFiled: June 11, 1993Date of Patent: August 26, 1997Assignee: Rohm and Haas CompanyInventors: Charles Thomas Arkens, Robert David Gleim
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Patent number: 5658979Abstract: A microemulsion wherein the aqueous phase comprises a Mannich (alk)acrylamide-based polymer and contains a material effective so as to raise the Flash Point of the microemulsion to an acceptable value is disclosed in addition to a method for raising the Flash Point of such Mannich (alk)acrylamide-based polymer microemulsions.Type: GrantFiled: December 11, 1996Date of Patent: August 19, 1997Assignee: Cytec Technology Corp.Inventors: Akhilkumar Gyan Verma, Paul Sheldon Waterman
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Patent number: 5654354Abstract: A non-photoformable composition for use as the first unpatterned layer in a diffusion patterning process consisting essentially of:A. a film-forming solid organic polymer having no free acid groups containing a plurality of acid liable groups which are acid reactive;B. a plasticizer in which the solid organic polymer is incompletely soluble;C. volatile organic solvent, the ratio of polymer to plasticizer being such that when the volatile organic solvent is removed from the organic medium, the resulting solvent-free polymer/plasticizer dispersion is specularly nonreflective; andD. finely divided particles of dielectric solids.Type: GrantFiled: April 4, 1996Date of Patent: August 5, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: John James Felten, Walter Raymond Hertler, Sheau-Hwa Ma
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Patent number: 5652289Abstract: A method for making a polymer, includes the step of polymerizing a mixture of a vinyl ester monomer, a (C.sub.1 -C.sub.12)alkyl (meth)acrylate monomer and a mono ethylenically unsaturated polar monomer by free radical initiated polymerization in an aqueous medium and in free presence of a colloidal stabilizer, a first poly(alkoxylated) alkyl phenol having less than or equal to 12 alkoxyl units per molecule and a second poly(alkoxylated) alkyl phenol having greater than 12 alkoxyl units per molecule, to form an emulsion of the polymer in the aqueous medium.Type: GrantFiled: October 11, 1995Date of Patent: July 29, 1997Assignee: Rohm and Haas CompanyInventors: Eric Karl Eisenhart, Bradley Anson Jacobs
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Patent number: 5643982Abstract: A non-ozone depleting, non-flammable co-solvent composition useful as a carrier for actives such as accelerators, catalysts, initiators, activators and other primer materials for use as adhesive promoter compositions in combination with adhesive compositions. The co-solvent compositions include an azeotropic solution of a perfluorocarbon and an alkylsiloxane.Type: GrantFiled: October 13, 1994Date of Patent: July 1, 1997Assignee: Loctite CorporationInventor: Ju-Chao Liu
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Patent number: 5639820Abstract: A method for preparing an aqueous dispersion composition containing a fluorocopolymer by the emulsion polymerizing of a polymerizable compound containing a polyfluoroalkyl group and another copolymerizable compound noncompatible with the polymerizable compound in an aqueous solution containing a compatibilizer, wherein the compatibilizer is selected from the group consisting of (a) a low-molecular weight compound having a perfluoroalkyl group and a hydrocarbon alkyl group in a molecule, (b) a low-molecular weight compound having a perfluoropolyether group and a hydrocarbon alkyl group in a molecule, (c) a macromolecular compound prepared by the copolymerization of a polymerizable compound containing a perfluoroalkyl group and a polymerizable hydrocarbon compound, and (d) a hydrocarbon macromolecular compound having a perfluoropolyether group in a molecule does not cause coagulation and can give an aqueous dispersion composition having the improved compatibility between the polymerizable monomers.Type: GrantFiled: June 2, 1995Date of Patent: June 17, 1997Assignee: Daikin Industries, Ltd.Inventors: Motonobu Kubo, Masamichi Morita
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Patent number: 5631317Abstract: Disclosed is a process for producing a self-dispersing and salt-sensitive polymer by polymerizing the following monomers (A), (B) and (C) in a total concentration of 25 % by weight or above:(A) 35 to 65 % by weight of acrylic acid,(B) 10 to 45 % by weight of a vinyl monomer represented by the following general formula [I]:CH.sub.2 .dbd.C(R.sup.1)COOR.sup.2 [I]wherein R.sup.1 represents a hydrogen atom or a methyl group; and R.sup.2 represents an alkyl group having 8 to 12 carbon atoms, and(C) 20 to 45% by weight of a vinyl monomer represented by the following general formula [II]:CH.sub.2 .dbd.C(R.sup.3)COOR.sup.4 [II]wherein R.sup.3 represents a hydrogen atom or a methyl group; and R.sup.4 represents an alkyl group having 2 to 4 carbon atoms in a mixed solvent comprising 50 to 90% by weight of an organic solvent having a solubility parameter of 10 (cal/cm.sup.3).sup.Type: GrantFiled: December 6, 1993Date of Patent: May 20, 1997Assignee: Lion CorporationInventors: Masanori Komatsu, Ikuko Toki
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Patent number: 5629395Abstract: There is provided an industrially advantageous process for producing a crosslinked polymer containing carboxyl groups which comprises (a) polymerizing an .alpha.,.beta.-unsaturated carboxylic acid and a crosslinking agent copolymerizable with it in the presence of a radical polymerization catalyst in an inert solvent, (b) heating the polymerized product in the presence of a radical scavenger and (c) removing the solvent. The polymer dissolved in water has high viscosity and excellent flowing properties.Type: GrantFiled: March 25, 1996Date of Patent: May 13, 1997Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Masato Fujikake, Shinji Kobayashi, Shigeki Hamamoto, Mitsutaka Tabata, Morio Nakamura
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Patent number: 5629365Abstract: Aqueous latices adapted to forming visible light transparent, coherent polymeric films, e.g. in laminates, as protective coatings or as adhesives, comprising colloidal particles of a UV-absorbing polymer less than 5 micrometers in diameter. Useful UV-absorbing polymer include homopolymers and copolymers of vinyl-functionalized monomer of benzotriazole or benzophenone and mixtures with plasticizer and/or coalescing agent. Plasticizer and coalescing agents are useful for providing polymer with reduced glass transition temperature to facilitate coalescence of polymer particles into coherent films. Useful additives for the latices of this invention include wetting agents, surfactants, and crosslinking agents, anti-oxidants and radical scavengers. The latices of this invention are particularly useful in providing clear, thin coatings on windows, tags, labels, flooring, tents, awnings, containers and other UV-susceptible substrates.Type: GrantFiled: December 21, 1994Date of Patent: May 13, 1997Assignee: Monsanto CompanyInventor: Homaune A. Razavi
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Patent number: 5629377Abstract: A water-absorbent resin particles that exhibits a centrifuged absorption capacity of 26 g/g or greater, an absorption under load of 24 g/g or greater at 0.6 psi load. Other aspects of the invention are processes for the preparation of such water-absorbent resin particles which comprise the inclusion of chlorine or bromine containing oxidizing agent followed by the heat-treatment to produce particles with superior centrifuged absorption capacity in combination with high absorption under load at high load, and acceptable levels of residuals. These water-absorbent resin particles provide superior performance when incorporated into absorbent structures.Type: GrantFiled: August 11, 1995Date of Patent: May 13, 1997Assignee: The Dow Chemical CompanyInventors: Josef H. Burgert, Stephen B. Christensen, Herbert A. Gartner, Fredric L. Buchholz, Thomas C. Johnson, Andrew T. Graham
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Patent number: 5629374Abstract: The present invention is directed to an aqueous anionic acrylic dispersion produced bya) dispersing an acrylic resin, having functional groups selected from the group consisting of carboxylic acid groups, carboxylic anhydride groups or mixtures thereof in water in the presence of a tertiary amine andb) reacting the carboxylic acid groups on the acrylic resin with an organic compound having at least two oxirane groups,a basecoat and a rheology control agent comprising said aqueous anionic acrylic dispersion, a method of coating a substrate with said dispersion and the coated substrate.Type: GrantFiled: May 3, 1995Date of Patent: May 13, 1997Assignee: BASF CorporationInventors: Anna M. Budde, Timothy D. Salatin
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Patent number: 5629372Abstract: A clear coating composition containing about 45-80% by weight of a binder and 20-55% by weight of an organic liquid; wherein the binder contains(A) about 40-90% by weight, based on the weight of the binder, of an acrylic polymer containing polymerized hydroxyl containing monomers of the following group of hydroxy alkyl acrylate or methacrylates having 1-4 carbon atoms in the alkyl group, and polymerized alkyl acrylates and methacrylates having 1-18 carbon atoms in the alkyl groups, or styrene or any mixtures of the above and 0.1-5.0% by weight, based on the weight of the acrylic polymer, of polymerized fluoroalkyl containing monomer represented by the formula ##STR1## where R is hydrogen or an alkyl group having 1-2 carbon atoms, n is an integer of 1-11 and R.sub.Type: GrantFiled: October 16, 1995Date of Patent: May 13, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Douglas R. Anton, Michael J. Darmon, William F. Graham, Richard R. Thomas
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Patent number: 5627224Abstract: The present invention provides a paper sizing composition which comprises a sizing agent selected from cyclic dicarboxylic acid anhydride or alkyl ketene dimer, a stabilizing and/or dispersing agent which is an amphoteric polymer and a polyaluminum compound.Type: GrantFiled: January 6, 1995Date of Patent: May 6, 1997Assignee: Eka Nobel ABInventors: Ebbe Lyrmalm, Bruno Carr e