Paper making and fiber liberation inventions 06/07

20070144692 - Methods for preparing alkali cellulose and cellulose ether: The invention is a method for efficiently preparing alkali cellulose having a uniform alkali distribution therein. More specifically, the invention is a method for preparing alkali cellulose comprising steps of bringing pulp into continuous contact with an alkali metal hydroxide solution in a rotary feeder type contactor to generate a... Agent: Alston & Bird LLP

20070144693 - Apparatus and method for degrading a web in the machine direction while preserving cross-machine direction strength: An embossing system for embossing and perforating at least a portion of a web is provided comprising a first embossing roll having embossing elements and at least a second embossing roll having embossing elements, wherein the elements of the first and second embossing rolls define perforate nips for embossing and... Agent: Patent Group Ga030-43 Georgia-pacific LLC

20070144694 - Tissue product, method of manufacture of a tissue product and apparatus for embossing a tissue ply: A one-ply tissue product includes a first external surface and a second external surface, the first surface having a wet-formed pattern and the second surface having an embossed pattern imitating the wet-formed pattern. Additionally, also multi-ply tissue product is suggested comprising at least two plies including two outer plies, each... Agent: Young & Thompson

20070144695 - Polyareneazole/thermoplastic pulp and methods of making same: The present invention relates to thermoplastic and polyareneazole pulp for use as reinforcement material in products including for example fluid sealing materials, as a processing aid including its use as a thixotrope, and as a filter material. The pulp comprises (a) irregularly shaped, thermoplastic fiber fibrous structures, (b) irregularly shaped,... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20070144696 - Pulp comprising polypyridobisimidazole and other polymers and methods of making same: The present invention relates to fibrous pulp comprising a combination of polypyridobisimidazole fibrous structures and fibrous structures derived from another polymer. The invention further relates to processes for making such pulp and articles comprising the pulp... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20070144697 - Additive compositions for treating various base sheets: Sheet-like products, such as 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... Agent: Dority & Manning, P.A.

20070144698 - Spiral link fabric and methods to build the same: A spiral-link fabric comprised of connected sets of “chain mail” intertwined spiral coils. Alternating sets of two right-turn spiral coils and two left-turn spiral coils are repeatedly connected to form the body of the fabric. Within each set, the spiral coil loops are intertwined in a pattern which does not... Agent: Frommer Lawrence & Haug

20070144699 - Shaped slot vacuum dewatering box cover: A cover for a vacuum dewatering box that is formed from a plurality of blocks, each including a wear surface, is provided. At least some of the blocks are spaced apart to form at least one generally longitudinally oriented slot through the cover, with a shape and size of the... Agent: Volpe And Koenig, P.C.

20070131361 - Method for charging a fiber suspension, and arrangement for carrying out said method: A method of loading a fibrous stock suspension containing chemical pulp fibers with calcium carbonate including the steps of: adding one of calcium oxide and calcium hydroxide in one of a liquid form and a dry form into the fibrous stock suspension; adding gaseous carbon dioxide into the fibrous stock... Agent: Todd T Taylor Taylor & Aust

20070131360 - Method for manufacturing paper and paper: A paper pulp used in papermaking is produced as follows: fiber material is fed into a precipitation reactor; a reactive mineral material is fed into the reactor; the reactive mineral material and the fiber material are combined to form a fiber suspension in the reactor and/or before feeding these materials... Agent: Venable LLP

20070131362 - Process for producing a fibrous product: The present invention concerns a process for modifying a lignocellulosic fibre material. In particular, the present invention gives new properties to the fibrous matrix of the material. This is achieved by producing fibrous products with modified properties by activating the fibres of the matrix with an oxidizing agent and attaching... Agent: Sughrue Mion, PLLC

20070131363 - Fiberline systems, processes and methods: A chemical pulp mill system and method of using black liquor flashing steam from a digester system comprises generating black liquor in the digester system, sending the black liquor to an evaporator system without using any pre-evaporator system, flashing the black liquor in the evaporator system to yield steam, and... Agent: Nixon & Vanderhye, PC

20070131364 - Process for treating a cellulose-lignin pulp: A process of treating a cellulose-lignin pulp. In an ozone stage, the pulp is contacted with ozone to bleach and delignify the pulp. The ozone stage is conducted without the addition of a peroxide bleaching agent. A chelant is introduced into the ozone stage to improve selectivity of the delignification.... Agent: Macmillan Sobanski & Todd, LLC

20070131365 - Method of brightness enhancement: A method of enhancing brightness of paper made from mechanical pulps or recycled pulps that comprise: adding an effective amount of one or more chelants and one or more surfactants to a bleaching stage of a papermaking process that involves the addition of hydrosulfite is disclosed.... Agent: Michael B. Martin Patent And Licensing Department

20070131366 - Tissue products having enhanced cross-machine directional properties: Tissue products are disclosed having desirable strength, stretch and softness properties. In particular, the tissue products exhibit relatively high strength while still having a relatively low stiffness and a significant amount of stretch. The tissue webs generally comprise uncreped through-air dried webs. In accordance with the present disclosure, the webs... Agent: Dority & Manning, P.A.

20070131368 - Paperboard with discrete densified regions, process for making same, and laminate incorporating same: Paperboard is densified in selected discrete regions spaced apart along the board such that the effective caliper of the board (defined between the surfaces of the board in the areas outside the densified regions) remains essentially unchanged compared to an equivalent board that is not selectively densified. Thus, the effective... Agent: Alston & Bird LLP

20070131367 - Tissue containing relatively high basis weight buckled regions: Tissue and towel sheets having a pattern of spaced-apart elongated regions of relatively high basis weight oriented in the machine direction of the sheets are produced by forming a molded three-dimensional wet web having spaced-apart ridges and valleys substantially oriented in the machine direction and thereafter flattening the molded web... Agent: Kimberly-clark Worldwide, Inc.

20070131369 - Papermaking process: The present invention relates to a process for improving the absorption rate for paper products. The process comprises treating a cellulosic fibre web comprising applying to said cellulosic fibre web at least one polymer; and colloidal particles.... Agent: Akzo Nobel Inc.

20070131371 - Bentonite slurry: There is provided an alkaline earth phyllosilicate material-containing slurry. It has been found the slurries of the present invention may be made at concentrations of up to 75% solids and remain pumpable. Broadly speaking, the slurry includes an alkaline earth phyllosilicate material and a polyfunctional compound and the remainder being... Agent: B. Craig Killough

20070131372 - Phyllosilicate slurry for papermaking: There is provided a slury of phyllosilicate-containing, material and a non-reactive, non-monomeric sizing agent, and water such that the final Hercules apparent viscosity of the slurry is below 100 cps. These slurries may have a solids content from 20 wt. % to 55 wt. % of solid phylloisilicate material. The... Agent: B. Craig Killough

20070131370 - Use of betuline as a filler in paper and board: The invention relates to the use of betuline as a filler in paper or board, and to a method for producing paper or board. According to the invention, an aqueous slurry is made of betuline, followed by the addition of said slurry to the pulp during the production of paper... Agent: Birch Stewart Kolasch & Birch

20070131373 - Method of decreasing the rate of photoyellowing: A method of decreasing the rate of photoyellowing in paper containing mechanical pulp comprising: applying an aqueous solution containing an effective amount of one or more salts of thiocyanic acid on the surface of a paper sheet in a papermaking process.... Agent: Michael B. Martin Patent And Licensing Department

20070125507 - Process of producing high-yield pulp: The present invention relates to a process for preparing a high-yield pulp comprising a) treating a lignocellulose containing material chemically by means of an oxidising system comprising at least one non-enzymatic oxidant substantially free from ozone and chlorine dioxide and an activator at a pH from about 2 to about... Agent: Akzo Nobel Inc.