Paper making and fiber liberation inventions 01/09

20090025891 - Composition and method for improving retention and drainage in papermaking processes by activating microparticles with a promoter-flocculant system: A composition and method for improving retention and drainage in a papermaking process is disclosed. An unexpected synergistic effect has been observed when certain amounts of a promoter are used in conjunction with a microparticle. Optionally, a flocculent is also used to further improve the observed synergism. The microparticle includes... Agent: Nalco Company

20090025892 - Method to recover chemicals in mechanical pulping: The present invention refers to a method to recover chemicals in mechanical pulping by evaporating mechanical pulping or recycled fibre plant effluent and burning the received concentrate under oxidative atmosphere to yield sodium carbonate. According to the invention said sodium carbonate is dissolved into water together with CaO in order... Agent: Buchanan, Ingersoll & Rooney PC

20090025893 - Method and apparatus for determining the total peroxide content of pulp suspension: A method and an apparatus for determining the total peroxide content of a cellulose pulp suspension in the pulp suspension bleaching stage, wherein the bleaching chemical is peroxide. A sample is taken from the pulp suspension, which sample is measured in a measuring device (25, 25′). Before measuring, the pH... Agent: Oliff & Berridge, PLC

20090025894 - Fibrous structures and methods for making same: Fibrous structures that exhibit a pore volume distribution such that greater than about 40% of the total pore volume present in the fibrous structure exists in pores of radii of from about 121 μm to about 200 μm, and methods for making such fibrous structures are provided.... Agent: The Procter & Gamble Company Global Legal Department - Ip

20090025895 - Process for the manufacture of paper and board: The present invention provides a process for the manufacture of paper or board in which the anionic charge at the fibre surface is artificially increased by adding a substantive water soluble anionic compound, providing more sites and enhancing the adsorption of cationic papermaking additives. The preferred anionic compound is a... Agent: Clariant Corporation Intellectual Property Department

20090025896 - Control of the thikening of silicate-containing aqueous systems: A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of at least 3000 g/mol to at most 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090025897 - Inorganic board and method for manufacturing the same: An object of the present invention is to provide an inorganic board lighter in weight and excellent in strength and rigidity, and a method of producing the inorganic board. An inorganic board described in claim 1 for accomplishing the object comprises a hydraulic inorganic material, an inorganic lightweight material, a... Agent: Birch Stewart Kolasch & Birch

20090025898 - Process for molding a friction wafer: A process and apparatus for making die-dried friction wafers collects friction particulates in a mold defining a wafer. The mold includes at least one perforate wall portion against which an aqueous slurry including the particulates is passed to form at least one layer on the wall as the particulates collect... Agent: Krieg Devault LLP

20090025899 - Apparatus for cleaning a fiber suspension for a papermaking process: An apparatus for cleaning a fiber suspension for papermaking of foreign substances contained therein, such as sand, metal parts, glass splinters, bark fragments and the like, by using a tubular, vertically aligned housing, which is constructed with an inlet for the introduction of the fiber suspension into this housing under... Agent: Lerner Greenberg Stemer LLP

20090020243 - Use of cyclodextrins for reducing deposits during paper production: The present invention relates to a method for preventing or reducing deposits in pulp and paper making processes by including a cyclodextrin during or after pulp formation in an amount effective for preventing or reducing the deposits. Optionally the cyclodextrin comprising the deposit is subsequently separated from the pulp.... Agent: Novozymes North America, Inc.

20090020244 - Impregnation vessel with convergence side relief and method for heat injection at convergence: An impregnation vessel including: a vessel container including an upper inlet to receive cellulosic material; a lower discharge port to discharge the cellulosic material from a discharge section of the vessel container; a convergence section internal to the vessel through which passes a flow of the cellulosic material in the... Agent: Nixon & Vanderhye, Pc

20090020245 - Security paper or special paper incorporating high resistance synthetic elements and a procedure for obtaining said papers: It consists in performing a security paper or special paper incorporating pigments within the paste of the synthetic element itself during its manufacture, providing pigment properties to said synthetic element, the pigments being protected from the attack of physical and chemical agents by the synthetic element itself.... Agent: Ostrolenk Faber Gerb & Soffen

20090020246 - Manufacturing method of mechanical pulp from cornstalk cellulose: The present invention relates to a manufacturing method of mechanical pulp from stalks of corn, an annual plant, by adding a digesting agent and, prior to, during or following addition of the digesting agent, completely separating fibrous material from the cornstalks by mechanical refining. The method of the present invention... Agent: Occhiuti Rohlicek & Tsao, LLP

20090020247 - Paper with improved stiffness and bulk and method for making same: 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... Agent: International Paper Company

20090020248 - Absorbent sheet incorporating regenerated cellulose microfiber: An absorbent paper sheet includes cellulosic papermaking fiber and up to about 75 percent by weight fibrillated regenerated cellulose microfiber which may be regenerated from a cellulosic dope utilizing a tertiary amine N-oxide solvent or selected ionic liquids. Fibrillation of the microfiber is controlled such that it has a reduced... Agent: Patent Group Ga030-43 Georgia-pacific Llc

20090020249 - Coating compositions comprising alkyl ketene dimers and alkyl succinic anhydrides for use in paper making: 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... Agent: Novak, Druce & Quigg LLP

20090020250 - Filled paper and method of manufacturing the same: There is provided a filled paper containing a coated filler obtained by coating a filler with a acrylamide copolymer (composite PAM) comprising (A) an anionic polysaccharide and (B) a cationic and/or an amphoteric acrylamide copolymer. The composite PAM is obtained, for example, by mixing the component (A) and the component... Agent: Clark & Brody

20090020251 - Machine for forming a fibrous web: In a machine for forming a layered fibrous web, at least two different fiber suspensions are led through a head box (10), the fiber suspensions are separated from each other by a blade device (18, 180), the fiber suspensions are supplied to a web forming device (24) and a water... Agent: Ware Fressola Van Der Sluys & Adolphson, LLP

20090020252 - Press felt for papermaking: A press felt comprises a base body, a wet paper web side batt layer, and a press side batt layer. The wet paper web side batt layer includes a web contact side batt layer and a base body side batt layer, the latter being composed of core-in-sheath fibers with a... Agent: Howson And Howson

20090014137 - Apparatus and method for a liquid gun: An apparatus for cleaning and cooling a liquor nozzle, the nozzle including at least a liquor tube for feeding liquor and chemicals into a furnace of a recovery boiler. The apparatus includes an outer casing tube, which defines a space whereto conduits are provided for introducing water and steam to... Agent: Nixon & Vanderhye, PC

20090014138 - Production of pulp using a gaseous organic agent as heating and reaction-accelerating media: The invention relates to an improved process to break down lignin macromolecules and liberating cellulose fibers in lignocellulosic material using delignifying reactants with a gaseous organic agent as a heating and reaction-accelerating media. Lignocellulosic material is first impregnated with reactant chemicals, e.g. commonly used agents such as sodium hydroxide and... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20090014139 - Softening agent for paper and method for making paper by using same: A paper softening composition that is capable of providing paper with excellent flexibility while suppressing decrease in paper strength. The paper softening composition contains a specific diamide diamine compound or a salt thereof and a specific amide amine compound or a salt thereof in a mass ratio of 5/95 to... Agent: Akerman Senterfitt

20090014140 - Paper making compositions and processes using protein particulate, colloidal pigment, and latex polymer combinations: 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... Agent: Kilyk & Bowersox, P.l.l.c.

20090014141 - Papers for liquid electrophotographic printing and method for making same: The specification discloses papers suitable for liquid electrophotographic printing (“LEP”) and a method for making such papers. According to the method, a papermaking furnish containing cellulosic fibers is formed into a fibrous web on a papermaking machine and at least partially dried. The web is then treated with a sizing... Agent: International Paper Company

20090014142 - Reverse bump test for closed-loop identification of cd controller alignment: A reverse bump test, for identifying the alignment of a sheetmaking system while the system remains in closed-loop control, includes the following steps: (a) leaving the control system in closed-loop, (b) artificially inserting a step signal on top of the measurement (or setpoint) profile from the scanner, (c) recording the... Agent: Honeywell International Inc.

20090014143 - Smoothing press apparatus: [Means for Achieving the Object] the smoothing press apparatus 100 is mounted on a last stage of the press part 11 of the closed draw type paper machine, and includes a smoothing press 17 having a pair of press rolls 23 and 25, a smoothing belt 27 interposed between the... Agent: Morgan Lewis & Bockius LLP

20090008049 - Non-scaling chip conditioning system for energy reduction in mechanical pulping: A method for pulping a fibrous lignocellulosic material includes a pretreatment step wherein the lignocellulosic material is reacted with a chelating agent selected from the group consisting of amino acids, monocarboxylic acids and polycarboxylic acids preferably having from two to six carbon atoms. The chelating agent reacts with calcium ions... Agent: K&l Gates LLP

20090008050 - Methods for producing wet-spun non-woven fabrics: and a method for producing a wet-spun non-woven fabric, which comprises the steps of dispersing inorganic fibers in an aqueous medium in the presence of an anionic dispersion stabilizer, adding a cationic compound to the obtained fiber dispersion to bundle the fibers and thereby preparing a fiber dispersion containing the... Agent: Marshall, Gerstein & Borun LLP

20090008051 - Wet strength enhancers for paper: d

20090008052 - Chemical solution-containing thin paper: A chemical solution-containing thin paper wherein a chemical solution is contained in an amount of 5 to 40% by weight with respect to base paper, powders are included in an amount of 0.1 to 30% by weight with respect to the chemical solution, the powders are formed by blending first... Agent: Quinn Emanuel Urquhart Oliver & Hedges Koda/androlia

20090008053 - Machine to produce a fibrous web: An apparatus for the production of a fibrous web, especially a tissue or hygienic web, the fibrous web runs through a press nip which is formed by a press unit and a backing roll and the web is subsequently run through a creping nip which is formed by the backing... Agent: Taylor & Aust, P.C.

20090000751 - Bleaching process with at least one extraction stage: An improved pulp bleaching process having at least one Do delignification stage followed by at least one extraction stage is selected from the group consisting of Eo, Eop, Ep, and E extraction stage. The process comprises treating the delignified pulp Do pulp from the Do stage in a MDE mixing... Agent: International Paper Company

20090000752 - Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products: Methods to control and suppress odor in papermaking sludge are described. One method involves admixing sludge from a papermaking process and cyclodextrin to provide treated sludge with the cyclodextrin present in an effective amount to control odors in the treated sludge. The deodorized sludge may be used as a component... Agent: Kilyk & Bowersox, P.l.l.c.

20090000753 - strip means and an improved suction roll for a material web machine and an arrangement and a method for improving the duration of the suction roll: A sealing strip of a suction roll (4) for a material web machine includes a longitudinal strip element (3) and a longitudinal holder (2) shaped as a U profile open in the direction of a facing surface (41). An element first layer (31) is an easily adjusting material and a... Agent: Stiennon & Stiennon