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Paper making and fiber liberation October categorized by USPTO classification 10/10

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
10/28/2010 > patent applications in patent subcategories.

20100269989 - Use of 1,3-selective lipases for pitch control in pulp and paper processes: Formulations for pitch control, and methods of making and using thereof, are described herein. The formulations contains one or more 1,3-selective lipases. 1,3-selective lipases catalyze the hydrolysis of the terminal ester groups in triglycerides leaving the internal ester group intact. The enzyme formulations can contain one or more additives, such... Agent: Pabst Patent Group LLP

20100269990 - Separation of reactive cellulose from lignocellulosic biomass with high lignin content: A process for separating the components of lignocellulosic biomass for the purpose of producing a pure reactive cellulose is disclosed. The process has two stages. In the first stage, the lignocellulosic biomass is pretreated with steam, with or without an acid catalyst, and then pressed, with or without the presence... Agent: Borden Ladner Gervais LLP Anne Kinsman

20100269991 - Deflaker plate and methods relating thereto: A deflaker plate for use in a deflaker for reducing fibrous flakes in a slurry of fibers. The deflaker plate may include at least one annular ring consisting of multiple teeth, in which at least one tooth has a leading face, a trailing face, and an impact-generating side-face. The impact-generating... Agent: Nixon & Vanderhye, PC

20100269992 - Sulfonation of pulp produced by alkali pulping process: This invention relates to the delignification of lignocellulosic pulp. More particularly, the invention relates to sulfonation and bleaching of the alkali pulping produced by Kraft pulp processes or produced through combination of alkali pulping processes and extended delignification stages.... Agent: International Paper Company

20100269993 - Method and composition for improving fiber quality and process efficiency in mechanical pulping: This invention provides a composition and method for improving a mechanical pulping process by decreasing freeness and amount of shives, providing energy and chemical savings, and enhancing brightness and mechanical strength of a paper product made from a pulp material in the process. The composition includes formulations, such as surfactants,... Agent: Edward O. Yonter Patent And Licensing Department

20100269994 - Method for treating ligno-cellulosic materials: The present invention relates to a method for treating pectin-containing ligno-cellulosic raw materials in a high-yield pulping process utilizing one or more treatment stages at alkaline conditions. The invention provides a method for controlling the alkaline treatment step, wherein the alkali is applied at a low temperature treatment stage before... Agent: Cantor Colburn, LLP

20100269995 - Sulfopolyesters for paper strength and process: Sulfopolyester thermoplastic resins provide advantages in papermaking processes and in paper products including paperboard. Improvements in wet strength and dry strength of paper products are achieved by addition of sulfopolyester thermoplastic resins and cationic strength additives during the paper making process. The use of sulfopolyester thermoplastic resins in paper products... Agent: Tammye L. Taylor Eastman Chemical Company

20100269996 - Method of detecting and reducing contamination in papermaking boiler systems: This invention relates to a method and system for detecting contamination of boiler condensate and/or boiler feedwater in a papermaking process. The method includes measuring an oxidation-reduction potential at one or more locations in the boiler condensate and/or the boiler feedwater of the papermaking process with one or more corrosion... Agent: Nalco Company

20100269997 - Apparatus for washing and dewatering pulp: Apparatus for washing and dewatering pulp including a pair of rotatable press rolls with a permeable outer surface in a casing including a vat in which the press rolls are installed is provided. A gap is provided between the vat and the press rolls as well as means for feeding... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

10/21/2010 > patent applications in patent subcategories.

20100263812 - System and method for repulping of paper products and improvement of water quality with dipolar solvents and recovery: An enhanced method of repulping paper and improving water quality by placing used paper product material in an aqueous solution of dipolar aprotic protophylic solvent, processing it, and recovering recycled pulp based on two physical reactions of the dipolar solvent: first with water from one part of the solvent, and... Agent: Paul D. Gornall, Reg''d Patent & Tm Agent Elc Law Corp.

20100263813 - Green liquor pretreatment of lignocellulosic material: A continuous process for producing a chemical grade pulp, the process comprising the steps of: (a) steaming lignocellulosic material for a first period of time between 1 and 60 minutes; (b) after steaming, impregnating the steamed lignocellulosic material in an impregnation vessel with green liquor for a second period of... Agent: Nixon & Vanderhye, PC

20100263814 - Pretreatment of lignocellulosic biomass through removal of inhibitory compounds: A process for the pretreatment of lignocellulosic biomass is disclosed. The process is intended for use in connection with biomass to ethanol processes and is directed in particular to an economical removal of inhibitory compounds generated in biomass pretreatment, which are inhibitory to downstream hydrolysis and fermentation steps. The process... Agent: Borden Ladner Gervais LLP Anne Kinsman

20100263815 - Multi-stage ap mechanical pulping with refiner blow line treatment: The invention combines the step of adding chemicals such as alkaline peroxide to an intermediate line after refining, with the step of applying chemicals such as alkaline peroxide as a pre-treatment before primary refining and/or applying chemicals such as alkaline peroxide at the primary refiner. This is implemented in the... Agent: Nixon & Vanderhye, PC

20100263816 - Use of chemical pulp mill steam stripper off gases condensate as reducing agent in chlorine dioxide production: Steam stripper off gas from chemical pulp mills, for example kraft or sulphite pulp mills is rich in methanol and totally reduced sulphur (TRS) compounds. This gaseous stream is usually burned to avoid further handling of this TRS-rich, odorous stream. We found that once this gaseous stream is condensed, it... Agent: Ogilvy Renault LLP

20100263817 - Process for producing tissue products: 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... Agent: Dority & Manning, P.A.

20100263818 - Retention systems and methods for papermaking: Compositions and methods of producing an optically-enhanced paper-based material are disclosed. The composition can include an optical brightening agent and an additive having an aromatic portion, where the aromatic portion is associated with an optical brightening agent. The paper-based material can exhibit a higher capacity for the optical brightening agent... Agent: Nutter Mcclennen & Fish LLP

20100263819 - Screen basket: A screen basket with replaceable profiled bars is described herein. The screen basket includes profiled bars evenly spaced circumferentially to form a plurality of continuous slots that covers the whole basket length. The profiled bars are fixed in place by a backing structure, including support rings. The support rings are... Agent: Harrington & Smith

20100263820 - Paper machine clothing: The invention relates to a clothing especially a press felt for a paper, cardboard or tissue machine with a nonwoven structure comprising staple fibers and which provides the paper and running side of the clothing and with a base structure which is embedded into the nonwoven structure, whereby the base... Agent: Taylor Ip, P.C.

- None available for 10/01/2010

- None available for 10/7/2010

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