Patents Examined by Dennis Cordray
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Patent number: 9663901Abstract: A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fiber-based coating, a multilayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fiber length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products.Type: GrantFiled: April 25, 2013Date of Patent: May 30, 2017Assignee: STORA ENSO OYJInventors: Isto Heiskanen, Karita Kinnunen, Tuomo Hjelt
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Patent number: 9657441Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.Type: GrantFiled: August 21, 2014Date of Patent: May 23, 2017Assignee: Akzo Nobel N.V.Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
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Patent number: 9642394Abstract: Embodiments of the invention relate to porous carbon and methods of preparing porous carbon. In some embodiments, the prepared porous carbon exhibits enhanced selectivity for hydrogen cyanide (HCN), In one embodiment, the method comprises impregnating activated carbon with a metal oxide, such as zinc oxide. The carbon is suitable for use in smoke filtration.Type: GrantFiled: July 18, 2012Date of Patent: May 9, 2017Assignee: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITEDInventors: Peter Branton, Bertram Bohringer, Sven Fichtner, Jann-Michael Giebelhausen
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Patent number: 9635882Abstract: A cigarette paper is shown which has the following properties over at least a part of its surface: no artificial perforation, the air permeability is at least 15 CU, preferably at least 20 CU, and especially preferably at least 25 CU, and for the exponent k, measured with a measuring head with a rectangular opening of 2 mm by 15 mm, in accordance with ISO 2965:2009, which is defined by k = log ? Q 1 Q 2 log ? p 1 p 2 with Q1: air-flow through the paper at a pressure difference p1=1.00 kPa and Q2: air-flow through the paper at a pressure difference p2=0.25 kPa, the following holds k?0.98, preferably k?0.95, especially preferably k?0.93, and k?0.80, preferably k?0.85.Type: GrantFiled: April 29, 2013Date of Patent: May 2, 2017Assignee: delfortgroup AGInventors: Bernhard Eitzinger, Maria Gleinser
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Patent number: 9635886Abstract: An electronic cigarette with a thermal flow sensor based controller is provided which comprises a housing; a battery, a controller assembly; an air inlet for allowing air to enter into the housing, a mouthpiece; a fluid reservoir; an atomizer; at least a light emitting diode; and a display. The thermal flow sensor is fabricated using micro-electro-mechanical systems (MEMS) technologies which is amenable to create the electronic cigarette with a thermal flow sensor based controller having stable evaporated liquid delivering, immediately response to smoker inhalation, like normal cigarette inhalation resistance, low power consumption, and no accidental actuation take place.Type: GrantFiled: December 20, 2013Date of Patent: May 2, 2017Assignee: POSIFA MICROSYSTEMS, INC.Inventor: Xiang Zheng Tu
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Patent number: 9635881Abstract: A smokeless tobacco composition comprising at least one type of non-tobacco fibers, wherein the non-tobacco fibers have an average length-to-width ratio equal to or greater than 3.5:1 and equal to or lower than 100:1, and a method for manufacturing the smokeless tobacco composition.Type: GrantFiled: March 15, 2013Date of Patent: May 2, 2017Assignee: Swedish Match North Europe ABInventors: Martin Sjögren, Thord Hassler, Jörgen Lundin, Bengt Börjesson
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Patent number: 9631319Abstract: The present invention concerns a process of making paper, board or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained on a moving screen to form a sheet which is dried, wherein the process employs a treatment system which is applied to the thin stock, said treatment system comprising as components, a) a cationic organic polymer of charge density of at least 3.0 meq/g with a molar mass Mw of up to 3 million Daltons or poly aluminum chloride (PAC), b) a cationic polymer having an average molar mass Mw of at least 500,000 Daltons and a charge density not exceeding 4.0 meq/g; c) a microparticulate material; in which components (b) and (c) are added to the cellulosic thin stock after the last shear stage before the head box and component (a) is added to the cellulosic thin stock before the said last shear stage.Type: GrantFiled: February 25, 2013Date of Patent: April 25, 2017Assignee: BASF SEInventor: Christopher Alan Gray
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Patent number: 9629391Abstract: The present disclosure provides tobacco-derived pyrolysis oils and derivatives thereof, such as isolated components and mixtures obtained from such pyrolysis oils. Advantageously, the tobacco-derived pyrolysis oils disclosed herein can exhibit desirable sensory characteristics. Further, tobacco-derived pyrolysis oils disclosed herein can exhibit desirably low concentrations of benzo[a]pyrene. The disclosure also provides methods for obtaining such tobacco-derived pyrolysis oils and derivatives thereof.Type: GrantFiled: August 8, 2013Date of Patent: April 25, 2017Assignee: R.J. Reynolds Tobacco CompanyInventors: Michael Francis Dube, Anthony Richard Gerardi, Christopher Junker
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Patent number: 9624623Abstract: The present disclosure provides for a method of preparing and using an emulsion for treating a papermaking process. The emulsion is an oil-in-water emulsion of alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer. The method comprises adding an oil-in-water emulsion to the papermaking process; wherein the oil-in-water emulsion comprises alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer; and wherein the oil-in-water emulsion is added in an amount sufficient to improve sizing of the paper produced by the papermaking process. The primary or secondary amine may be a secondary amine comprising diallylamine, and the polymer may be a diallylamine-acrylamide copolymer.Type: GrantFiled: October 6, 2014Date of Patent: April 18, 2017Assignee: ECOLAB USA INC.Inventors: Michael R. St. John, David J. Castro, Mei Liu
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Patent number: 9611590Abstract: Creping adhesives and methods for making and using same are provided. The creping adhesive can include a first thermosetting polyamidoamine-epihalohydrin resin that includes a reaction product of a first epihalohydrin and a first polyamidoamine containing one or more secondary amine groups, a first thermoplastic polyamidoamine-epihalohydrin resin that includes a reaction product of a second epihalohydrin and a second polyamidoamine containing one or more secondary amine groups, and one or more re-wetting agents. The first thermosetting polyamidoamine-epihalohydrin resin can have a weight average molecular weight of about 800,000 to about 1,200,000 and a molar ratio of the first epihalohydrin to the secondary amine groups of about 0.002:1 to about 0.1:1. The first thermoplastic polyamidoamine-epihalohydrin resin can have a weight average molecular weight of about 40,000 to about 200,000 and a molar ratio of the second epihalohydrin to the secondary amine groups of about 0.001:1 to about 0.1:1.Type: GrantFiled: November 7, 2014Date of Patent: April 4, 2017Assignee: Georgia-Pacific Chemicals LLCInventors: Clay E. Ringold, David F. Townsend, Cornel Hagiopol, Karla D. Favors, Thomas L. Wright
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Patent number: 9603388Abstract: An electrically heated smoking system is provided, including a secondary unit capable of receiving a smoking article having an aerosol-forming substrate. The secondary unit includes at least one heating element and an interface for connection to a primary power supply, and further includes a secondary power supply and secondary circuitry. The secondary circuitry is arranged to control supply of electrical power from the secondary power supply to the at least one heating element: (a) in a pre-heating mode during which the substrate temperature is increased to an operating temperature; (b) in a smoking mode, during which the substrate temperature is maintained at substantially the operating temperature; and (c) in a charging mode, so that the secondary power supply has sufficient charge to increase the substrate temperature to the operating temperature in the pre-heating mode and to maintain the substrate temperature at substantially the operating temperature during the smoking mode.Type: GrantFiled: November 18, 2011Date of Patent: March 28, 2017Assignee: Philip Morris Products S.A.Inventors: Felix Fernando, Marc-Robert Chemla, Fredrik Stahle
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Patent number: 9605384Abstract: A process for the manufacture of hydrophobic paper using a pulp comprising a slurry of cellulosic fibers in an aqueous medium comprising an alkoxysilane. A paper or cardboard packaging product comprising cellulosic fibers having a silane residue substantially uniformly distributed throughout the paper or cardboard and bonded to the cellulosic fibers predominantly through Si—O— bonds.Type: GrantFiled: July 8, 2014Date of Patent: March 28, 2017Assignee: STL Sustainable Technologies, LLCInventor: Michael M. Thompson
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Patent number: 9598819Abstract: A method of treating a cellulosic slurry to improve drainage is disclosed; the method comprises adding a surfactant based brown stock wash aid to a cellulosic furnish in an amount of from 0.5 to 1 lbs per ton and adding a synthetic polymer papermachine drainage or strength aid to the furnish in an amount of from 0.1 to 10 lbs per ton, allowing the furnish to drain and forming a paper product.Type: GrantFiled: November 7, 2014Date of Patent: March 21, 2017Assignee: Solenis Technologies, L.P.Inventor: Iris D. Barton
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Patent number: 9596881Abstract: The present invention relates to a new vegetable-based composition for liquid to be vaporized in electronic cigarettes, comprising water and propylene glycol of vegetable origin and/or glycerol and/or nicotine and/or natural flavors.Type: GrantFiled: December 14, 2012Date of Patent: March 21, 2017Assignee: DKS AROMATIC S.R.L.Inventors: Alessandro Chiolini, Roberto Chiolini
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Patent number: 9591875Abstract: Smokeless tobacco products suitable for oral consumption are provided. The smokeless tobacco products include a tobacco composition and at least one fibrous structure enclosing at least a portion of the outer surface of the tobacco composition such that the fibrous structure and the tobacco composition form a cohesive structure capable of maintaining cohesion when placed in an oral cavity, wherein the fibrous structure includes one or more of (i) a warp knitted structure; (ii) a plurality of reinforcing fibers attached to the tobacco composition; (iii) a braided sleeve; and (iv) a spacer fabric. A process for preparing a smokeless tobacco product adapted for oral consumption is also provided, the process including the step of enclosing at least a portion of the outer surface of a tobacco composition with a fibrous structure to form a composite structure.Type: GrantFiled: March 19, 2015Date of Patent: March 14, 2017Assignee: R. J. Reynolds Tobacco CompanyInventors: Andries D. Sebastian, Bruce Bengtsson, Jeremy Barrett Mabe, Jason Kobisky
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Patent number: 9580865Abstract: The invention relates to a method for dissolving cationic starch. In the method is obtained an aqueous polyelectrolyte solution comprising a synthetic cationic polymer, which has a charge density value of at least 0.1 meq/g, determined at pH3, the concentration of the cationic polymer in the polyelectrolyte solution being >2.5 weight-%, and the aqueous polyelectrolyte solution is brought together with cationic starch having a degree of substitution, DS, >0.1. The cationic starch is dissolved to the polyelectrolyte solution by heating and/or mixing. The invention relates also to a papermaking agent comprising 2-40 weight-% of synthetic cationic polymer which has a charge density value of at least 0.1 meq/g, determined at p H 3, and 2.5-25 weight-% cationic starch having degree of substitution, DS, >0.1. The papermaking agent is in slurry form and has a viscosity of 50-20 000 m Pas, measured at 25° C. with Brookfield DVI+ viscometer.Type: GrantFiled: March 22, 2013Date of Patent: February 28, 2017Assignee: Kemira OYJInventors: Asko Karppi, Esko Tirronen
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Patent number: 9578897Abstract: A combustible heat source (4) for a smoking article (2) comprises carbon and at least one ignition aid, wherein the ignition aid is present in an amount of at least 20 percent by dry weight of the combustible heat source. The combustible heat source (4) has a first portion and an opposed second portion. At least part (4b) of the combustible heat source (4) between the first portion and the second portion is wrapped in a combustion resistant wrapper (22) that is one or both of heat conducting and substantially oxygen impermeable. Upon ignition of the first portion of the combustible heat source (4), the second portion of the combustible heat source increases in temperature to a first temperature. During subsequent combustion of the combustible heat source (4), the second portion of the combustible heat source (4) maintains a second temperature lower than the first temperature.Type: GrantFiled: June 1, 2012Date of Patent: February 28, 2017Assignee: Philip Morris Products S.A.Inventors: Thomas Gladden, Laurent Poget, Evan Jochnowitz, Stephane Roudier, Alexandre Malgat, Samuel Bonnely
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Patent number: 9565873Abstract: The present application is related to an electronic cigarette liquid and a method of producing pulp for use in the electronic cigarette liquid, the method includes: using a stainless steel bathing can with a 500 Liter capacity that can endure heating and pressurizing; placing the pulp and original liquid used for bathing inside the can at a pre-determined ratio. After heating, pressurizing and bathing, the absorption of the pulp is fully attained. Then, opening a ball valve and releasing and collecting only the liquid from the bathing can and taking out the viscous pulp for packaging. The hookah pulp product is obtained with a solid extract of the hookah pulp product being 90% or above of the hookah pulp product.Type: GrantFiled: October 17, 2013Date of Patent: February 14, 2017Inventor: Zhixuan Zheng
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Patent number: 9565874Abstract: A smoking article comprises a first part and a second part movable relative to the first part. A control mechanism comprises a first control surface on one of the first part or second part; and a second control surface on the other of the first and second parts. The second control surface is configured to engage with the first control surface to control relative rotation between the first part and second part.Type: GrantFiled: March 9, 2012Date of Patent: February 14, 2017Assignees: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED, BRITISH AMERICAN TOBACCO JAPAN, LTD.Inventors: Karl Kaljura, Kevin Blick, David Paton, Michael Simpson
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Patent number: 9560879Abstract: The invention relates to a tobacco shred feeding treatment device and a method for improving the heat energy and feed liquid absorption efficiency of tobacco shred, comprising: a tobacco shred feeding machine, said tobacco shred feeding machine mainly comprises a roller, a process warm-air pipe, a power blower, a heater, a steam nozzle, a feed liquid nozzle and an air inlet pipe; the process warm-air is blown into said roller from said air inlet pipe via said steam nozzle and said heater under the action of said power blower, and mixed with the tobacco shred; said air inlet pipe is provided directly under the central axis of said roller; the opening of said air inlet pipe faces up obliquely, and the opening direction of which could be adjusted into any position within the roller according to the requirements; said steam nozzle is mounted between the power blower and the heater, to achieve heating the condensed water in the steam, and to avoid directly injecting the steam to burn the tobacco shred.Type: GrantFiled: August 15, 2014Date of Patent: February 7, 2017Assignee: Xiamen Tobacco Industrial Co., Ltd.Inventors: Yusheng Wu, Yuefei Zhou, Rongxin Lin, Hong Huang, Daoquan Wang, Tuo Lin, Jichun Qian, Jindong Xie, Jing Luo