Paper making and fiber liberation inventions 09/07

20070221345 - Method and device for washing of lime mud: The method and an arrangement are for dewatering and washing lime slurry before the dewatered lime mud is passed to a lime mud kiln. The lime slurry is dewatered in a pressurized lime mud filter of disc or drum type. The pressurized lime mud filter is pressurized through a compressor... Agent: Fasth Law Offices (rolf Fasth)

20070221346 - Method and apparatus for reducing the amount of sludge produced in a pulp and/or paper mill: The amount of sludges produced in a pulp and/or paper mill is reduced. The sludge produced in a pulp and/or paper mill as a result of waste water treatment is conveyed to solid fuel and the produced fuel-sludge mixture is burned in a power boiler. The solid fuel is heated... Agent: Stiennon & Stiennon

20070221347 - Creping machine: A machine for creping sheet material such as paper, textiles, metal foils, or plastic, comprises a driving drum, and a pressing plate for pressing a length of sheet material against the drum to drive the material lengthwise in the machine direction, and a retarding member arranged to contact the lengthwise-driven... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20070221348 - Aqueous compositions containing perfluoropolyether di-carboxylic salts for the oleo-repellent paper treatment: Rf is a (per)fluoropolyoxyalkylene chain having number average molecular weight between 500 and 10,000. B) from 0.01% to 5% by weight of water-dispersible or water-soluble cationic polymers, having a charge density, defined as number of equivalents per weight unit of dry polymer, higher than 1 meq/g of dry polymer.... Agent: Arent Fox PLLC

20070221349 - Cast-coated papers and processes for preparing thereof: The present invention aims to provide a cast-coated paper having good sheet gloss, printability and productivity and a process for preparing it. Herein disclosed is a cast-coated paper obtained by applying a cast coating layer comprising a pigment and an adhesive on a base paper, and pressing and drying the... Agent: Nixon & Vanderhye, PC

20070221350 - Low-density neutral paper: The present invention provides a low-density neutral paper offering excellent opacity, opacity after printing and other advantageous printability properties despite high bulk, by containing, as a filler, precipitated calcium carbonate-silica composite having an average particle size of 30 μm or less and produced by neutralizing a mixture of precipitated calcium... Agent: Knobbe Martens Olson & Bear LLP

20070221351 - Method and device for exchange of a belt: The invention relates to a method and a device for the exchange of an old working belt (1) on a machine for production of a web, for example a paper web, for a new working belt (13). According to the invention, the exchange is simplified, whereby the track start of... Agent: Greenblum & Bernstein, P.L.C

20070215300 - Solvents for use in the treatment of lignin-containing materials: A method for the treatment of a lignin-containing material such as wood pulp, bagasse and other plant-derived materials, comprising contacting the lignin-containing material with an ionic liquid to extract the lignin therefrom. The ionic liquid is suitably a substituted or unsubstituted imidazolium, triazolium, pyrazolium, pyridinium, pyrrolidinium, piperidinium, ammonium, phosphonium or... Agent: Hoffmann & Baron, LLP

20070215301 - Method for making a low density multi-ply paperboard with high internal bond strength: Methods for improving the internal bond strength of paperboard with greater than 25 percent crosslinked fiber in at least one ply are described. In the methods, additives are added to the slurry in various combinations and order while maintaining the ionic demand of the slurry at less than zero. Paperboard... Agent: Weyerhaeuser Company Intellectual Property Dept., Ch 1j27

20070215302 - Support body, holding device therefor, apparatus with such body for treatment of a web, methods of forming an extended nip in the apparatus and controlling load in the nip: A support body (7) for an apparatus having an extended nip (N) that is defined by a contact surface (13) of the support body and an opposed surface (4), the support body having two side surfaces (69, 70) facing from each other and connecting to the contact surface, and a... Agent: Alston & Bird LLP

20070215303 - Wood-reducing apparatus with continual feeder assembly: Apparatuses, methods, and systems for producing wood chips are disclosed. The disclosure in one embodiment produces smooth wood chips of generally uniform size and shape, suited for use in making paper, cardboard, and other recyclable materials. In one embodiment, an apparatus is disclosed for collecting, aligning and guiding wood scraps... Agent: Alston & Bird LLP

20070215304 - High tension permeable belt for an atmos system and press section of paper machine using the permeable belt: A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt has a paper web facing side and is guided over a support surface. The permeable belt can... Agent: Greenblum & Bernstein, P.L.C

20070209768 - Method for the production of a fibrous web from cellulose fibers in a draining process: Method for producing a fibrous web exclusively from cellulose fibers of natural origin, comprising the following procedural steps: forming an essentially uniformly thick, dry fiber layer from loose fibers having a low moisture content, pressing and embossing the fiber layer to obtain a fibrous web and forming an embossed pattern,... Agent: Beck And Tysver P.l.l.c.

20070209769 - Papermaking machine and papermaking method: A papermaking machine for making continuous paper web by holding a paper stock suspension 1a jetted from a head box 2 into the shape of a layer, and removing moisture while making this paper stock layer 1 travel. The papermaking machine is provided with steam type heating means 6 and... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070209770 - Double layer papermakers fabric with pockets for bulk enhancement: A double layer papermakers' fabric that is particularly suitable for forming or through-air drying (TAD) of high bulk tissue and towel product is provided. The fabric includes a single warp yarn system interwoven with three weft yarn systems such that: a first of the weft yarn systems is located on... Agent: Volpe And Koenig, P.C.

20070204965 - Method for producing creped paper: (iii) reaction products of polyalkylenepolyamines having a molar mass of from 300 to 1 million with at least one bischlorohydrogen ether or bisglycidyl ether of a polyalkylene glycol having a molecular weight MN of from 300 to 3000 to a creping cylinder, compression and removal of the crepe paper, as... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070204966 - Method of controlling adhesive build-up on a yankee dryer: An improved method of controlling build-up of adhesive coating on a Yankee drying cylinder preferably includes intermittently: (a) increasing the add-on rate of resinous adhesive to the drying cylinder substantially above the steady-state add-on rate; (b) segregating the absorbent sheet product produced while the add-on rate of resinous adhesive to... Agent: Patent Group Ga030-43 Georgia-pacific LLC