Application To Formed Web Patents (Class 162/184)
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Patent number: 8999111Abstract: The invention provides methods and compositions for increasing the strengthening effect of a starch coating on paper. The method involves contacting the starch with a synthetic polymer before the starch is cooked. This changes how the starch gelatinizes and how the polymer gets distributed on the paper resulting in greater paper surface strength.Type: GrantFiled: December 28, 2012Date of Patent: April 7, 2015Assignee: Ecolab USA Inc.Inventors: David J Castro, Mei Liu, Gary S Furman, Dorota Smoron, Shawnee M Wilson, Zhiyi Zhang
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Patent number: 8974636Abstract: A fluff pulp or other pulp, comprises a multivalent cationic metal ion selected from the group consisting of Al+3, B+3, Mn+2, Cu+2, Cu+3, Zn+2, Sn+2, Sn+4, water-soluble salt thereof, or combination thereof; an amine-containing anti-static agent; and pulp. Methods of making and using the pulp, as well as articles therefrom, are provided.Type: GrantFiled: June 13, 2013Date of Patent: March 10, 2015Assignee: International Paper CompanyInventors: James E. Sealey, Peter M. Froass, Sylvie Marie Rita Carriere
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Patent number: 8939155Abstract: A filter wrapper paper for a smoking article is shown, the paper having a content of long-fiber pulp of at least 30 wt %, preferably at least 40 wt %, relative to the pure fiber mass of the paper. The freeness of the long-fiber pulp as per ISO 5267, Schopper-Riegler method, is between 80° SR and 100° SR, preferably between 85° SR and 95° SR. The filter wrapper paper has a filler content of less than 10 wt %, preferably less than 8 wt %, and especially preferably less than 6 wt % relative to the total mass of the paper and is impregnated with a material that is suitable for forming an aqueous composition, more particularly an aqueous solution or an aqueous suspension. The oil-resistance of the filter wrapper paper has a KIT level of at least 4, preferably at least 5, according to TAPPI T559 cm-02.Type: GrantFiled: January 28, 2014Date of Patent: January 27, 2015Assignee: Delfortgroup AGInventors: Roland Zitturi, Dietmar Volgger, Dieter Möhring
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Patent number: 8920606Abstract: The present disclosure is directed to a continuous process for preparing cellulose reactive adducts of polyvinylamide.Type: GrantFiled: December 6, 2012Date of Patent: December 30, 2014Assignee: BASF SEInventor: Matthew D. Wright
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Patent number: 8894815Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid and of organic acids which do not need extra solubilizing additives.Type: GrantFiled: December 9, 2008Date of Patent: November 25, 2014Assignee: Clariant Finance (BVI) LimitedInventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon, Martin Oberholzer
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Patent number: 8871054Abstract: A process is provided for making a fluff pulp sheet, comprising: contacting at least one cationic dye and at least one debonder surfactant with a composition comprising fluff pulp fibers, to form a fluff pulp mixture; forming a web from the fluff pulp mixture; and drying the web, to obtain the fluff pulp sheet. A fluff pulp sheet is also provided, comprising a web comprising fluff pulp fibers; at least one cationic dye; and at least one debonder surfactant. Products and uses of the fluff pulp sheet are also provided.Type: GrantFiled: July 21, 2011Date of Patent: October 28, 2014Assignee: International Paper CompanyInventor: James E. Sealey
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Patent number: 8858759Abstract: Methods and compositions for improving dewatering efficiency during a papermaking or pulp drying process are disclosed. The methods can include a step of adding a dewatering agent solution to a location on a paper machine or pulp drying machine. The dewatering agent solution can include a soy based component. The soy based component can be soy flour or soy protein. The dewatering agent solution can be added to a wet end location of the pulp drying machine or paper machine or it can be sprayed onto a paper sheet prior to entering the press section of a paper machine. Additional dewatering agent solutions can also be added. The additional dewatering agent solutions can include cationic polymers or surfactants.Type: GrantFiled: July 10, 2013Date of Patent: October 14, 2014Assignee: Ecolab USA Inc.Inventors: Prasad Duggirala, Weiguo Cheng, Luiz W. Pace
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Publication number: 20140246159Abstract: A wet wipe includes a nonwoven fabric impregnated with a liquid. A surface layer in a first surface of the nonwoven fabric has an apparent density of 0.030-0.10 g/cm3 in a dry state. A surface layer in a second surface of the nonwoven fabric has an apparent density of 0.12-0.20 g/cm3 in a dry state. Fibers constituting the nonwoven fabric are raised on at least the first surface.Type: ApplicationFiled: September 25, 2012Publication date: September 4, 2014Applicant: UNICHARM CORPORATIONInventors: Takayoshi Konishi, Toshio Hiraoka, Takahiro Ueda, Ayami Suga, Hiromi Yamada
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Patent number: 8821687Abstract: A flushable article such as a wipe that includes a substrate that includes fibers, and a dried binder composition in contact with the fibers, the article (e.g., wipe) being insoluble in water having a pH of no greater than 6, and disintegrating in water having a pH of at least 6.5.Type: GrantFiled: December 9, 2011Date of Patent: September 2, 2014Assignee: H.B. Fuller CompanyInventors: Mutombo J. Muvundamina, Brian W. Carlson
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Patent number: 8808502Abstract: A process where substrates, such as documents like smooth coated papers, are exposed to a weak acid, a weak acid solution, or mixtures thereof for the purpose of increasing the surface roughness of the substrate.Type: GrantFiled: March 29, 2013Date of Patent: August 19, 2014Assignee: Xerox CorporationInventors: Jonathan B Hunter, George A Gibson, Linn C Hoover, Yuanjia Zhang
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Patent number: 8790494Abstract: The invention provides a three layered reprographic paper having improved strength, stiffness and curl resistance properties, and a method for making same. The paper has a central core layer made largely of cellulose and bulked with a bulking agent such as a diamide salt. A starch-based metered size press coating is pressed on both sides of the core layer, wherein the starch has a high solid content. The coating forms a three layered paper having an I-beam arrangement with high strength outer layers surrounding a low density core.Type: GrantFiled: May 31, 2013Date of Patent: July 29, 2014Assignee: International Paper CompanyInventors: Agne Swerin, Jay C. Song, Ladislav Bednarik, Peter F. Lee, Michael C. Herman, Sen Yang
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Patent number: 8784612Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid and of organic acids which do not need extra solubilizing additives.Type: GrantFiled: December 9, 2008Date of Patent: July 22, 2014Assignee: Clariant Finance (BVI) LimitedInventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon, Martin Oberholzer
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Patent number: 8753480Abstract: The current invention includes a composition having stability additives of selected inorganic salts and/or organic incorporated into an aldehyde-functionalized polymer product. The stability additive can be post added to the finished polymer product, added to the reaction vessel prior to inducing functionalization of the non-functionalized polymer, or added at any stage during the functionalization reaction. Methods for forming the composition and using the composition to produce a cellulosic fiber-based medium are also disclosed.Type: GrantFiled: October 12, 2012Date of Patent: June 17, 2014Assignee: Nalco CompanyInventors: Heinrich E. Bode, Michael R. St. John, Mei Liu, Robert M. Lowe
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Patent number: 8747615Abstract: Formulations and methods for papermaking use one or more volatile debonders, where the volatile debonder forms a solution or an emulsion with water in a paper precursor, and where the volatile debonder is evaporable from the paper precursor before the paper precursor is completely dried to form a paper sheet during papermaking. Two volatile debonders having different boiling points can be used, where they are miscible in water and in each other, and where one volatile debonder has a higher molecular weight and the other volatile debonder has a lower boiling point.Type: GrantFiled: February 7, 2013Date of Patent: June 10, 2014Assignee: Nanopaper, LLCInventors: Gangadhar Jogikalmath, Lynn Reis, David S. Soane, Andrea Schneider
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Patent number: 8741105Abstract: According to the disclosure, a wet form cellulosic product forming process and a wet formed cellulosic product are disclosed. The process includes providing a slurry, forming the slurry into a cellulosic product, dewatering the cellulosic product, and drying the cellulosic product. Further dewatering of the cellulosic product occurs through a non-mechanical mechanism.Type: GrantFiled: September 1, 2010Date of Patent: June 3, 2014Assignee: AWI Licensing CompanyInventors: James J. Beaupre, David J. Neivandt, Kenneth P. Kehrer
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Patent number: 8679295Abstract: The present disclosure relates generally to a tissue product having a creping composition disposed onto at least one surface thereof to increase the softness of the article, while retaining or improving manufacturing efficiency. Preferably the creping composition comprises a first component that is cationic and a second component that is capable of forming a film. Preferably both the first and second components are water soluble. The first component carries a cationic charge that is capable of forming ionic bonds with the negatively charged fibers of the tissue web, thus providing a retention mechanism by which the creping composition is retained. The overall retention of the creping composition reduces the concentration of the composition in the machine process water, improving machine operability and runability.Type: GrantFiled: March 20, 2012Date of Patent: March 25, 2014Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Frank Gerald Druecke, Dave Allen Soerens, Benjamin Joseph Kruchoski, Frederick John Lang, Christopher Lee Satori, John Alexander Werner, IV, Cathleen Mae Uttecht, Mickey Joseph Authement, II
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Patent number: 8673117Abstract: A degrading agent composition for use in manufacturing a tissue product generally includes a degrading agent, a degradation inhibiting carrier, and a non-ionic surfactant. The non-ionic surfactant stabilizes the viscosity of the composition as a function of time. The degrading agent composition can be used in combination with a temporary wet strength agent to produce a tissue product exhibiting high initial wet tensile strength and desirable decay properties. Processes for forming the tissue product and pumpable fluids containing the degrading agent composition are also disclosed.Type: GrantFiled: September 30, 2010Date of Patent: March 18, 2014Assignee: Kemira OyjInventors: Scott Rosencrance, Yuping Luo, Vladimir Grigoriev
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Patent number: 8663427Abstract: A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.Type: GrantFiled: April 7, 2011Date of Patent: March 4, 2014Assignee: International Paper CompanyInventors: James E. Sealey, Brent A. Fields
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Patent number: 8623177Abstract: The invention relates to a process for the manufacture of paper, paperboard and cardboard, wherein spray starch is applied to a moving, wet sheet of material and which is characterized in that the starch is sprayed onto the wet sheet of material in powder form by means of one or more nozzle(s).Type: GrantFiled: April 23, 2012Date of Patent: January 7, 2014Inventor: Roman Steindl
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Patent number: 8613831Abstract: A paper substrate, particularly useful in wallboard tape applications containing PVOH on and/or in at least one surface of the paper, as well as methods of making and using the same. The use of the tape of the invention is used in conjunction with a joint compound that may contain no or reduced amounts of bonding agent.Type: GrantFiled: February 7, 2013Date of Patent: December 24, 2013Assignee: International Paper CompanyInventor: Martha Patricia Wild
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Patent number: 8613829Abstract: This invention relates to paper products and/or substrates suitable for being made into wallboard tape (also may be known as joint tape and/or drywall tape) and having improved reduction or inhibition in the growth of microbes, mold and/or fungus. The paper substrate is characterized by its excellent physical properties including cross direction (CD) tensile, machine (MD) tensile, internal bond, wet tensile, hygroexpansivity, curl, bonding properties, bonding of joint tape to joint compound, etc. The paper product of the invention contains a sizing agent and an antimicrobial compound as well as other optional components including without limitation a binder. The paper product of the invention may be produced by contacting the plurality of cellulose fibers with each of the sizing agent, antimicrobial compound, and optional components at any point in the papermaking process, converting process, and/or post-converting process. Finally, the invention relates to methods of using the paper substrate.Type: GrantFiled: July 9, 2010Date of Patent: December 24, 2013Assignee: International Paper CompanyInventors: Dennis W. Anderson, Bianca A. Morganroth, William A. Payne
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Patent number: 8608908Abstract: A method for inhibiting deposition of multivalent saturated fatty acids on paper sizing equipment and/or devices which use a paper surface sizing composition containing higher starch solids levels of surface sizing starches and a source of multivalent cations, such as a multivalent metal drying salt, by including (wholly or partially) one or more low fatty acid surface sizing starches in the paper surface sizing composition. Also, a paper surface sizing system for carrying out this method.Type: GrantFiled: April 2, 2010Date of Patent: December 17, 2013Assignee: International Paper CompanyInventors: Michael F. Koenig, Ascencion L. Koenig, Ewa Gertruda Bucher
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Patent number: 8568563Abstract: Methods of making the burnthrough resistant non-woven mat include forming the mat from glass fibers and at least two binders, a first binder having a vinyl component and a second binder having a strengthening component. The vinyl component may be, for example, ethylene vinyl chloride, and the strengthening component may be, for example, melamine formaldehyde. In one method, the vinyl component is added to the glass fibers by a beater addition process and the strengthening component is sprayed onto the glass fibers. The burnthrough resistant non-woven mat may be used in conjunction with an insulation blanket, and may be especially suited to use in insulating aircraft.Type: GrantFiled: January 14, 2013Date of Patent: October 29, 2013Assignee: Jonhs ManvilleInventor: Glenda Beth Bennett
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Patent number: 8512515Abstract: Wiping products are disclosed containing an additive composition that enhances the cleaning properties of the product. The additive composition, for instance, comprises an aqueous dispersion containing an alpha-olefin polymer, an ethylene-carboxylic acid copolymer, or mixtures thereof. The alpha-olefin polymer may comprise an interpolymer of ethylene and octene, while the ethylene-carboxylic acid copolymer may comprise ethylene-acrylic acid copolymer. The additive composition may also contain a dispersing agent, such as a fatty acid.Type: GrantFiled: January 31, 2011Date of Patent: August 20, 2013Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Thomas Joseph Dyer, Michael R. Lostocco, Deborah Joy Nickel, Troy M. Runge, Kenneth John Zwick, Mike T. Goulet, Jeffrey J. Timm, Perry H. Clough, Michael J. Rekoske
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Patent number: 8506755Abstract: An absorbent composite material may be manufactured by applying a flexible absorbent binder polymer (FAB), also referred to herein as a flexible superabsorbent, during the creping step of conventional tissue manufacturing. As such, the costly process of applying FAB to a substrate by spraying or printing followed by drying may be eliminated. The creping step has the additional advantage of improving the flexibility and softness of the FAB treated fibrous web.Type: GrantFiled: December 28, 2010Date of Patent: August 13, 2013Assignee: Kimberly-Clark Worldwide, IncInventors: Dave Allen Soerens, Cathleen Mae Uttecht, Cynthia Suzanne Krueger
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Patent number: 8496784Abstract: A process for making a stiffened and rigid paper includes preparing a pulp slurry consisting essentially of water, a cellulosic pulp, a crosslinker, and a starch, and optionally a binder; draining the liquid from the pulp slurry to form a web; and drying the web. Alternatively, a process for making a stiffened and rigid paper includes the step of adding at least one crosslinker at one or more locations, such as at the wet-end, dry-end, or at both ends of the papermaking process. Suitable crosslinkers include a glyoxal-containing crosslinker, a gluteraldehyde, a polyfunctional aziridine, a zirconium-containing crosslinker, a titanium-containing crosslinker, and an epichlorohydrin, and mixtures thereof. When a binder is employed, it can be added either in the dry or wet form. Provided is a neutral or alkaline process to produce a paper product having the improved mechanical properties of a laminated product in the Z-direction, without a lamination step.Type: GrantFiled: April 5, 2011Date of Patent: July 30, 2013Assignee: P.H. Glatfelter CompanyInventor: Thomas W. Ballinger
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Patent number: 8465624Abstract: A fluff pulp or other pulp, comprises a multivalent cationic metal ion selected from the group consisting of Al+3, B+3, Mn+2, Cu+2, Cu+3, Zn+2, Sn+2, Sn+4, water-soluble salt thereof, or combination thereof; an amine-containing anti-static agent; and pulp. Methods of making and using the pulp, as well as articles therefrom, are provided.Type: GrantFiled: July 18, 2011Date of Patent: June 18, 2013Assignee: International Paper CompanyInventors: James E. Sealey, Peter M. Froass, Sylvie Marie Rita Carriere
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Patent number: 8460513Abstract: A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.Type: GrantFiled: April 7, 2011Date of Patent: June 11, 2013Assignee: International Paper CompanyInventors: James E. Sealey, Brent A. Fields
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Patent number: 8454797Abstract: A method for improving the print quality of paper, a process for preparing such paper and the paper produced thereby are disclosed. The method involves applying to the paper an aqueous solution comprising 0.15 to 6 weight percent calcium in the form of its hydroxide. The supersaturated solution of calcium hydroxide can be obtained from reverse osmosis of milk of lime. The paper produced by the method disclosed exhibits a surface concentration of calcium greater than 3 mg/m2 and less than 360 mg/m2 and at the same time less than 20% of a halide, nitrate, sulfate, carbonate, acetate or formate counter ion.Type: GrantFiled: July 18, 2012Date of Patent: June 4, 2013Assignee: Finch Paper LLC.Inventors: Peter J. Veverka, Thomas D. Ruch
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Publication number: 20130126117Abstract: The invention relates to a composition suitable for surface treatment of paper, wherein the composition contains a specified fluorescent whitening agent with a combination of specific terminal groups, a salt of a bivalent cation, and a carrier. The composition is used for whitening paper, in particular in the size press.Type: ApplicationFiled: July 14, 2011Publication date: May 23, 2013Applicant: BLANKOPHOR GMBH & CO. KGInventors: Bernhard Hunke, Andrei Tauber, Michael Kraemer, Gunter Klug
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Patent number: 8440053Abstract: A method for inhibiting deposition of multivalent saturated fatty acids on paper sizing equipment and/or devices which use a paper surface sizing composition containing one or more surface sizing starches and a source of multivalent cations, such as a multivalent metal drying salt, by including a C16 or higher saturated fatty acid solubilizing and dispersing surfactant in the paper surface sizing composition. Also, a paper surface sizing system for carrying out this method.Type: GrantFiled: April 2, 2010Date of Patent: May 14, 2013Assignee: International Paper CompanyInventors: Michael F. Koenig, Ascencion L. Koenig, Ewa Gertruda Bucher
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Patent number: 8398821Abstract: Fibrous structures comprising an additive, more particularly finished fibrous structures comprising a low surface energy solid additive, and/or sanitary tissue products comprising such finished fibrous structures, are provided.Type: GrantFiled: May 24, 2011Date of Patent: March 19, 2013Assignee: The Procter & Gamble CompanyInventors: Kenneth Douglas Vinson, Michael Scott Prodoehl
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Patent number: 8382949Abstract: A paper substrate, particularly useful in wallboard tape applications containing PVOH on and/or in at least one surface of the paper, as well as methods of making and using the same. The use of the tape of the invention is used in conjunction with a joint compound that may contain no or reduced amounts of bonding agent.Type: GrantFiled: August 11, 2010Date of Patent: February 26, 2013Assignee: International Paper CompanyInventor: Martha Patricia Wild
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Patent number: 8382946Abstract: Embodiments of the present invention provide a paper surface sizing composition, a paper web coated on one or more sides or surfaces with a paper surface sizing composition, and a method for treating one or more sides of the paper web with a paper surface sizing composition to impart benefits relating to one or more of the following properties: (1) brightness; (2) opacity; (3) paper smoothness; (4) print quality; (5) optionally ink dry time (e.g., for ink jet printing where the sizing composition has option); and (6) optionally minimizing or eliminating edge welding (e.g., for paper webs used in, for example, form printing).Type: GrantFiled: December 9, 2011Date of Patent: February 26, 2013Assignee: International Paper CompanyInventors: Jay C. Song, Sen Yang, Larry Hollmaier, Michael F. Koenig, Yaoliang Hong, Krishna M. Pamidimukkala, Michael Renfro, Benjamin Thomas Liguzinski
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Patent number: 8354041Abstract: A composition suitable for surface treatment of paper, wherein the composition contains a specified fluorescent whitening agent with alkylsulfonic acid groups, a salt of a bivalent cation, and a carrier. The composition is used for whitening paper, in particular in the size press.Type: GrantFiled: June 10, 2009Date of Patent: January 15, 2013Assignee: Blankophor GmbH & Co. KGInventors: Bernhard Hunke, Michael Kraemer, Andrei Tauber, Günter Klug
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Patent number: 8277613Abstract: The present invention provides for high thermal conductivity paper that comprises a host matrix (10), and high thermal conductivity materials (12) added to a surface of the host matrix in a specific pattern (12). The high thermal conductivity materials are comprised of one or more of nanofillers, diamond like coatings directly on the host matrix, and diamond like coatings on the nanofillers. In particular embodiments the specific pattern comprises one or more of a grid, edging, banding centering and combinations thereof and the high thermal conductivity materials cover 15-55% of the surface of the host matrix. Multiple surfaces, including sub layers my have patterning.Type: GrantFiled: January 20, 2010Date of Patent: October 2, 2012Assignee: Siemens Energy, Inc.Inventors: James D. B. Smith, Gary Stevens, John W. Wood
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Patent number: 8262859Abstract: The present invention is directed to compositions comprising a cellulose reactive functionalized polyvinylamine first adduct, compositions comprising combinations of the cellulose reactive functionalized polyvinylamine first adduct and cellulose reactive functionalized polyvinylamide second adduct, methods for preparing first adduct and second adduct blends and finally methods of increasing the wet or dry strength of paper by incorporation into the paper furnish or coating a paper or board with said adducts.Type: GrantFiled: October 31, 2008Date of Patent: September 11, 2012Assignee: BASF SEInventor: Matthew D. Wright
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Patent number: 8262857Abstract: Tissue products are disclosed containing an additive composition. The additive composition, for instance, comprises an aqueous dispersion containing an alpha-olefin polymer, an ethylene-carboxylic acid copolymer, or mixtures thereof. The alpha-olefin polymer may comprise an interpolymer of ethylene and octene, while the ethylene-carboxylic acid copolymer may comprise ethylene-acrylic acid copolymer. The additive composition may also contain a dispersing agent, such as a fatty acid. The additive composition may be incorporated into the tissue web as the web is being formed. Alternatively, the additive composition may be topically applied to the web in a post processing operation. For instance, in one embodiment, the additive composition may be applied to the web as a creping adhesive during a creping operation.Type: GrantFiled: July 1, 2010Date of Patent: September 11, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael Alan Hermans, Michael J. Rekoske, Thomas Joseph Dyer
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Patent number: 8252144Abstract: The invention relates to a flame resistant paper product and a method for manufacturing a flame resistant paper product. In an embodiment the invention is a paper product comprising a paper substrate having a first surface and a second surface and a flame retardant composition, wherein the first surface is smoother than the second surface. In another embodiment, the invention is a method for forming a flame resistant paper product comprising applying a flame retardant composition to a web of fibers having a first surface and a second surface, wherein the first surface is smoother than the second surface by at least about 70 SSU according to TAPPI T538.Type: GrantFiled: May 27, 2004Date of Patent: August 28, 2012Assignee: Wausau Paper Mills, LLCInventor: Robert Steif
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Patent number: 8241460Abstract: Web to be formed into wrapping paper is applied with combustion inhibitor and then dried. Water is applied onto the entire surface of the opposite side to the combustion-inhibitor applied side of the web. The web applied with water is dried while pinched between drying and pressing rollers and stretched in a width direction. In this way, unwrinkled high-quality cigarette wrapping paper having a low ignition propensity can be stably and inexpensively manufactured. As the pressing roller, a heat-resistant rubber roller provided in its surface with a soft portion in a helical way is utilized.Type: GrantFiled: December 23, 2011Date of Patent: August 14, 2012Assignee: Japan Tobacco Inc.Inventors: Shinzo Kida, Takafumi Izumiya, Yuzuru Sakuma
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Patent number: 8236136Abstract: Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic particles or compositions. The coatings may be used at a variety of points during the paper making process, including on the calender stack and in the wet end.Type: GrantFiled: February 25, 2010Date of Patent: August 7, 2012Assignee: Spectra-Kote CorporationInventors: Charles W. Propst, Jr., James C. Jones
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Patent number: 8221588Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid which do not need extra solubilising additives.Type: GrantFiled: July 12, 2006Date of Patent: July 17, 2012Assignee: Clariant Finance (BVI) LimitedInventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon
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Publication number: 20120115385Abstract: The invention relates to asphalt emulsions comprising an asphalt component selected from the group consisting of a solvent extracted asphalt, an oxidized asphalt, and combinations thereof. The invention also relates to products made therefrom, including fibrous mats comprising a fiber component, such as glass fibers, and a binder component comprising an asphalt emulsion. The invention further relates to wet-laid processes for manufacturing fibrous mats and that employ the use of an amphoteric surfactant, which is applied to a wet fiber web prepared from a dispersion of fiber components, such as glass fibers.Type: ApplicationFiled: January 11, 2012Publication date: May 10, 2012Applicant: Building Materials Investment CorporationInventors: Younger Ahluwalia, James A. Svec, Margie Beerer
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Patent number: 8163133Abstract: The invention relates to an aqueous dispersion useful for internal sizing or surface sizing in the production of paper, comprising at least one cellulose reactive sizing agent selected from the group consisting of ketene dimers and multimers, at least one cellulose non-reactive sizing agent and at least one emulsifier selected from the group consisting of oxyalkylene phosphate and sulfate esters and salts thereof. The invention further concerns a process for its preparation, use thereof, and processes for the production of paper.Type: GrantFiled: March 26, 2004Date of Patent: April 24, 2012Assignee: Akzo Nobel N.V.Inventor: Ralf Krückel
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Patent number: 8123905Abstract: An absorbent paper sheet is treated with an aqueous wax dispersion such that the sheet includes a fused wax and emulsifier residue in an amount of from about 1 to about 20 weight percent of the sheet based on the combined weight of the fiber, wax residue and an emulsifier residue in the sheet. The fused wax emulsion operates to make at least one surface of the sheet laterally hydrophobic, exhibiting a moisture penetration delay of at least about 2 seconds and less than about 40 seconds as well as a typical contact angle with water at one minute of at least about 50 degrees. There is thus provided absorbent products which exhibit both absorbency and resistance to moisture penetration. The treated sheet further exhibits microbial barrier properties, impeding transfer of bacteria, for example, through the sheet. There are produced tissue products which resist moisture penetration from propelled liquids as well as sequester sorbed liquids in the interior of the tissue.Type: GrantFiled: March 23, 2010Date of Patent: February 28, 2012Assignee: Georgia-Pacific Consumer Products LPInventors: Phuong V. Luu, Steven L. Edwards, David W. White, Brigitte K. Schauer, Martin A. Hynnek
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Patent number: 8114252Abstract: A composition for treating paper products comprising protein particulate, colloidal pigment, synthetic latex polymer, and preservative is described, as well as methods and an apparatus using the composition for such treatments, and products obtained thereby. The treated paper products preferably have improved strength, water holdout, and/or ink holdout, amongst other advantages and benefits.Type: GrantFiled: July 10, 2008Date of Patent: February 14, 2012Assignee: Buckman Laboratories International, Inc.Inventor: Gerald M. Dykstra
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Patent number: 8088252Abstract: A solution with a salt-sensitive polymer binder for use in fibrous webs, where the binder contains a copolymer comprising repeat units derived from butyl acrylate, methyl methacrylate and amino functionalized alkyl acrylate or methacrylate or amino functionalized alkyl acrylamide or methacrylamide optionally including monomers such as vinyl acetate and/or vinyl acetate/ethylene. The binder solution is prepared by emulsion-polymerizing a copolymer and then neutralizing the copolymer with acid to make it water soluble. The binders are particularly suitable for strengthening nonwoven fibrous webs in disposable articles such as wet-wipes, personal care products, diapers, and the like and retain their salt-sensitivity with or without divalent metal scavengers.Type: GrantFiled: March 2, 2009Date of Patent: January 3, 2012Inventors: Rajeev Farwaha, Philip Confalone
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Patent number: 8062476Abstract: A preparation of high strength paper by incorporating a polymeric film into the paper web during the paper making process is provided. The polymeric film is either a cold water soluble film or hot water soluble film or water insoluble hydrophilic film or non soluble non hydrophilic film or a combination of cold+hot+cold water soluble film or cold+hot water soluble film or cold+non soluble hydrophilic film or cold+non soluble hydrophilic film+cold water soluble film or cold+non soluble non hydrophilic film or cold+non soluble non hydrophilic film+cold water soluble film or slit strips of one or many of these combinations woven or intertwined offline and incorporated into the paper during the paper making process. Zone coating or discreet printing or zone extrusion striping or formation of hot water soluble film on preformed cold water soluble film which is then inserted into paper during the paper making process, thus using cold water soluble film as a carrier is also provided.Type: GrantFiled: March 22, 2006Date of Patent: November 22, 2011Assignee: Arrow Coated Products Ltd.Inventors: Shilpan Pravinchandra Patel, Nikita Kamlesh Thanawala
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Patent number: RE44936Abstract: A composition for enhancing the dewatering of a paper sheet on a paper machine and a method for using the composition is disclosed. The composition comprising one or more aldehyde-functionalized polymers comprising amino or amido groups wherein at least about 15 mole percent of the amino or amido groups are functionalized by reacting with one or more aldehydes and wherein the aldehyde functionalized polymers have a molecular weight of at least about 100,000. The method comprising adding the composition to the paper machine at a dosage of about 0.05 lb/ton to about 15 lb/ton, based on dry fiber.Type: GrantFiled: July 31, 2012Date of Patent: June 10, 2014Assignee: Nalco CompanyInventors: Michael R. St. John, Angela P. Zagala
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Patent number: RE45383Abstract: A method of enhancing the dewatering of a paper sheet on a paper machine comprising adding to the paper sheet about 0.05 lb/ton to about 15 lb/ton, based on dry fiber, of one or more aldehyde functionalized polymers comprising amino or amido groups wherein at least about 15 mole percent of the amino or amido groups are functionalized by reacting with one or more aldehydes and wherein the aldehyde functionalized polymers have a molecular weight of at least about 100,000.Type: GrantFiled: July 31, 2012Date of Patent: February 24, 2015Assignee: Nalco CompanyInventors: Michael R. St. John, Angela P. Zagala