Patents Represented by Attorney, Agent or Law Firm Suzanne Kikel
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Patent number: 8246531Abstract: An incubator for imaging with non-ionising radiation adapted for the care of newborn babies, which integrates a system projective or tomographic imaging system, or both simultaneously, which makes use of non-ionising radiation in the band of the electromagnetic spectrum included between ultraviolet light and far infrared, a system which can be used to view a subject (11) located in the incubator (19) such that this projective or tomographic image can be morphological or functional.Type: GrantFiled: December 19, 2007Date of Patent: August 21, 2012Assignee: Fundacion Para la Investigacion Biomedica del Hospital Gregorio MaranonInventors: Juan Jose Vaquero Lopez, Manuel Desco Menendez, Manuel Sanchez Luna
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Patent number: 7135234Abstract: A multilayer thermoplastic extruded structure comprises at least one thermoplastic polyolefin layer; at least one thermoplastic vinyl aromatic polymer layer; and a multicomponent tie layer. The multicomponent tie layer comprises at least one thermoplastic polyolefin; at least one thermoplastic vinyl aromatic polymer; and at least one styrenic block copolymer. Preferred structures are multilayer films used for packaging or multilayer sheets for thermoformed containers.Type: GrantFiled: May 21, 2004Date of Patent: November 14, 2006Assignee: Nova Chemicals (International) S.A.Inventors: Karen D. Donnelly, Robert Dorville Roberts, John Chi Hee Kwok, Chris K. Hung, Trevor Dean Pacholok
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Patent number: 7056399Abstract: The present invention provides a process to treat steels, preferably carbon steel to reduce the tendency of the steel to form coke when in contact with hydrocarbons at elevated temperatures. The steel may be first reduced then treated with a mixture of compounds which further modify the reduced surface and finally the treated steel surface is cured. The treated steel has a reduced propensity to form coke when in contact with hydrocarbons particularly at higher temperatures.Type: GrantFiled: April 29, 2003Date of Patent: June 6, 2006Assignee: NOVA Chemicals (International) S.A.Inventors: Haiyong Cai, Michael C. Oballa, Andrzej Krzywicki, Leslie Wilfred Benum
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Patent number: 6943223Abstract: The present invention provides a process to create without mechanical agitation a zone of low shear, low turbulence flow pattern within a continuous liquid phase contained in a vessel and comprising a dispersed phase consisting of particles or immiscible liquid droplets which have a density different from and should be distributed within the continuous phase without excessive agglomeration or breakups in order to largely preserve the initial particle size distribution, by a continuous or periodic re-circulation of at least a part of the continuous phase which is preferably free of dispersed particles or droplets.Type: GrantFiled: April 27, 2004Date of Patent: September 13, 2005Assignee: NOVA Chemicals Inc.Inventors: Karel Cornelis Bleijenberg, Grazyna Petela
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Patent number: 6908949Abstract: Interpolymer resin particles comprised of 20% to 80% by weight polyolefin, e.g. polyethylene and 80% to 20% by weight of an in situ polymerized vinyl aromatic resin, e.g. polystyrene or poly(styrene-butyl acrylate) and forming an interpenetrating network of polyolefin and vinyl aromatic resin particles. The interpolymer particles are impregnated with a volatile hydrocarbon blowing agent, and limonene, e.g. d-limonene, ranging from about 0.1 to about 5 parts, preferably 0.1 to 1 part by weight, based on 100 parts by weight of the interpolymer particles, for improved expandability and a pleasant fragrance.Type: GrantFiled: January 23, 2004Date of Patent: June 21, 2005Assignee: Nova Chemicals Inc.Inventors: Paul Edward Arch, Edwin H. Niemann
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Patent number: 6734247Abstract: An improved tough, transparent polymer alloy comprised of 90 to 20 weight percent of a brittle polymer with a weight average molecular weight greater than 180,000; 0 to 60 weight percent of a rubbery polymer; 0 to 80 weight percent of a ductile polymer; and between greater than 0.4, i.e. between 0.5 and 3 weight percent of a plasticizer, i.e. mineral oil which resides in the brittle polymer. The brittle polymer can have molecular weights between 220,000 and 300,000, and may be as high as 400,000. In one of the preferred embodiments the brittle polymer is a copolymer of styrene and methyl methacrylate which copolymer ranges between 50 and 55 weight percent, the rubbery polymer is 0 weight percent, the ductile polymer is a styrene butadiene block copolymer ranging between 45 and 50 weight percent, and the mineral oil is 1.5 weight percent. Notched IZOD impact strength ranges between 1.0 to 6.0 ft-lb./in., preferably between 2.0 and 4.5 ft-lb./in. The haze can be less than 1.5% or it can be between 1 and 4%.Type: GrantFiled: December 13, 2001Date of Patent: May 11, 2004Assignee: Nova Chemicals Inc.Inventors: Allen Maxwell Donn, Richard Albert Cooper
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Patent number: 6573306Abstract: Process for the preparation of expandable polyvinylarene particles in which compact polyvinylarene particles are impregnated by an inorganic N2- and/or O2-containing gas at a temperature below 95° C. and at a pressure of 100 to 2,000 kPa gauge.Type: GrantFiled: August 22, 2001Date of Patent: June 3, 2003Assignee: Nova Chemical (International) S.A.Inventors: Michel Florentine Jozef Berghmans, Karel Cornelis Bleijenberg, Alphonsus Catharina Gerardus Metsaars
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Patent number: 6545078Abstract: Composition containing polyvinylarene polymer particles, which particles are bound to each other by a binder composition based on a silicate and an organic polymer having a weight average molecular weight of at least 500,000 g/mol, as measured in accordance with gel permeation chromatography. The invention furthermore relates to a process for the preparation of such compositions, to the binder composition per se and to a kit of parts.Type: GrantFiled: March 1, 2002Date of Patent: April 8, 2003Assignee: Nova Chemicals (International) S.A.Inventors: Claude Nootens, Govind Rauniyar, Dominique Paul Theo Joseph Vliers
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Patent number: 6538042Abstract: Porous polyvinylarene particles having a apparent density do of 600 to 200 kg/m3, which particles contain a nucleating agent and 2.0% by weight or less, based on the amount of polyvinylarene, of a volatile organic blowing agent. The invention also relates to a process for the preparation of these particles as well as to the use of these particles in the preparation of expanded particles and foamed articles.Type: GrantFiled: June 28, 2001Date of Patent: March 25, 2003Assignee: NOVA Chemicals (International) S.A.Inventors: Michel Florentine Jozef Berghmans, Kurt Ernest Irma Du Mong, Karel Cornelis Bleijenberg, Guy Lode Magda Maria Verbist
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Patent number: 6455599Abstract: Process for the preparation of expanded polyvinylarene particles in which polyvinylarene particles pre-expanded to an apparent density do ranging between 600 and 200 kg/m3 are impregnated by an inorganic gas, and the impregnated particles thus obtained are expanded to an apparent density of at least three times lower than do.Type: GrantFiled: June 28, 2001Date of Patent: September 24, 2002Assignee: NOVA Chemicals (International) S.A.Inventors: Michel Florentine Jozef Berghmans, Karel Cornelis Bleijenberg, Alphonsus Catharina Gerardus Metsaars
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Patent number: 6243868Abstract: A fingertip protector comprises a sleeve adapted to fit over a finger of a wearer, and a flexible strip. The sleeve has an opening for the insertion of a finger, and a portion of strip is attached to the part of the circumference of the opening. An adhesive backing on the inner surface of the strip is present to secure the protector to the finger and the remainder of the circumference of the opening, and a release liner is releasably affixed to the adhesive backing, which is designed for removal before use. In an alternative embodiment, the fingertip protector is snugly secured to the finger by strips of hook and loop fastening material disposed about the circumference of the open end of the sleeve.Type: GrantFiled: September 13, 1999Date of Patent: June 12, 2001Inventor: Ernest Wanzenried
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Patent number: 6206854Abstract: A catheter garment for receiving and retaining an indwelling catheter near the exit site on the body. The garment comprises a flexible band member with a middle portion, upper and lower portions defining an inner surface and an outer surface, and end portions with adjustable fastening means e.g. hook and loop means. An elongated pouch for receiving and retaining the external tubing portion is affixed to the inner surface of the garment and places the external tubing portion in close proximity to the patient's body when the garment is being worn. The elongated pouch is made of a rectangular piece of material that is folded over and its longitudinal free edges are sewn together. The pouch is then sewn along its sewn longitudinal edges onto the inner surface of the flexible band member. The elongated pouch has opened ends along opposite sides of the pouch. One opened end is diagonally formed i.e.Type: GrantFiled: May 8, 2000Date of Patent: March 27, 2001Inventor: Kathleen M. Weaver
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Patent number: 6092735Abstract: An adjustable rail anchorage device including a rail clip and a cam rotatable around a fixed mounting bolt for laterally moving the rail clip into anchoring position on the rail. The cam includes a passageway for the mounting bolt and a circular boss portion with an outer circular wall having a gap defined at projected wall positions where the projected perimeter of the wall approximately coincides with the projected perimeter of the passageway to transfer lateral loads from the rail to the mounting bolt. A welded platform base with a raised haunch for locating the mounting bolt can be used to transfer lateral loads from the rail to the raised haunch.Type: GrantFiled: January 20, 1998Date of Patent: July 25, 2000Inventor: Godfrey Matthew Owen Molyneux
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Patent number: 6068693Abstract: A method of enhancing the brightness and increasing the yield of a kaolin clay by optimizing the removal of the titania and mica impurities in the clay and the amount of clay remaining in the slurry is disclosed. The method is a selective flocculation process wherein the clay is blunged, dispersed, and conditioned before flocculation. In the flocculation step, a high molecular weight anionic polymer and a low molecular weight anionic polymer, such as sodium polyacrylate, are added to the slurry after the conditioning process, whereby the titania-mica enriched flocs are separated from the suspension which is enriched with kaolin. This final kaolin product has titania levels ranging from 0.1% to 0.5%, a reduced mica level, a high usable product yield, and a brightness greater than 89.5 and at least 91.5.Type: GrantFiled: June 16, 1997Date of Patent: May 30, 2000Assignee: ECC International Inc.Inventors: William L. Garforth, Robert J. Pruett, Dona L. Archer, Jun Yuan, Michael J. Garska, H. Vince Brown
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Patent number: 6051141Abstract: A method of treating water containing silicon-containing impurities in a concentration of up to 10,000 parts per million by weight of the water, by contacting the water over a period of time with a particulate solid which entrains silicon-containing impurities in the water and subsequently separating the water from the particulate solid, wherein the particulate solid is a high alumina cement which is anhydrous when first contacted by the water.Type: GrantFiled: February 5, 1998Date of Patent: April 18, 2000Assignee: Imerys Minerals LimitedInventors: Neil Robert Forbes, Thomas Richard Jones
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Patent number: 5992641Abstract: Improved methods of screening particulate matter are disclosed. For example, aqueous mineral slurries containing at least 10 weight percent of finely divided mineral solids are mechanically size separated using vibratory screening and a self propelled recirculative rotating spray bar, prior to, and subsequent to various processing steps. The employment of the spray bar improves the screening process by preventing blinding of the screen, as well as increasing throughput. As a result this invention reduces screen residues and/or increases production rates significantly.Type: GrantFiled: June 5, 1995Date of Patent: November 30, 1999Assignee: ECC International Inc.Inventor: Ronald W. Caldwell, Jr.
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Patent number: 5977003Abstract: A ceramic particulate material which comprises particles having an irregular three dimensional surface profile having jagged projections and a median particle diameter of 200 micrometers or less, the particles being fractals produced by comminution of foamed ceramic material. The material may be such that in a sphere of rotation of the particle, from 30% to 80% of the volume of the sphere is void, the remainder being continuous solid material. The material may be produced by a process which includes providing a suspension of ceramic forming particles e.g., of an aluminosilicate such as clay, in a liquid medium; incorporating a gas in the liquid medium before or after formation of the suspension therein to produce a foamed suspension; extruding the foamed suspension; optionally drying the extrudate formed thereby; calcining the extrudate; and comminuting the calcined material, e.g. by crushing. The material may be used as a substitute for diatomite.Type: GrantFiled: September 18, 1996Date of Patent: November 2, 1999Assignee: ECC International Ltd.Inventors: Nicholas John Goodwin Wilshaw, Jonathan Andrew Hearle, Mathew Thomas Rundle
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Patent number: 5972263Abstract: A method of improving the strength and/or plasticity of a clay composition comprising a kandite clay and an organic additive comprising at least one water soluble compound having a plurality of basic groups wherein the organic additive is present in an amount of from about 0.05% by weight to about 0.5% by weight based on the dry weight of the kandite clay present, which method comprises treating the kandite clay by adding thereto a monovalent ion activated smectite clay or a monovalent ion activating agent for a smectite clay or both whereby the amount of monovalent ion activated non-calcined smectite clay present in the clay composition is adjusted to be in the range from about 1% by weight to about 5% by weight based upon the dry weight of the kandite clay present.Type: GrantFiled: December 10, 1997Date of Patent: October 26, 1999Assignee: ECC International Ltd.Inventors: Howard Goodman, Christopher Stirling Hogg, Richard Gerrard Shaw Stewart
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Patent number: 5965103Abstract: A method of producing an aqueous suspension of calcium hydroxide which comprises passing a gaseous flow incorporating particles of calcium carbonate through a calcining furnace thermally to decompose the calcium carbonate, delivering a flow of the decomposition products formed in the furnace comprising calcium oxide particles suspended in gas comprising carbon dioxide to a vessel wherein the calcium oxide particles are contacted with water to produce an aqueous suspension of calcium hydroxide and separating the aqueous suspension from the said gas.Type: GrantFiled: December 18, 1997Date of Patent: October 12, 1999Assignee: ECC International Ltd.Inventors: Christopher Robin Langdon Golley, Jacek Antoni Kostuch, John Anthony Purdey
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Patent number: D625084Type: GrantFiled: February 1, 2010Date of Patent: October 12, 2010Inventor: Elizabeth Ann Plekker