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| Number | Title | Issue Date |
| 8157962 | Process for the production of cellulosic product The present invention relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight; adding to the thick suspension an al... | 04/17/2012 |
| 8123907 | Composition and ink receiving system incorporating the composition A composition includes an alkenyl succinic anhydride sizing agent or an alkyl ketene dimer sizing agent. The alkenyl succinic anhydride sizing agent is present in an amount ranging from about 1.0 pounds per ton to about 4.0 pounds per ton. The alkyl ketene dimer siz... | 02/28/2012 |
| 8101047 | Method of correcting gypsum crystal water effect on infrared moisture measurement Ash composition measurements of calcium carbonate and gypsum in paper is accomplished with a dual X-ray sensor system with one X-ray source that is powered at about 5.9 KV and a second X-ray source that is powered at about 4.2 KV. Corresponding detectors measure rad... | 01/24/2012 |
| 7833385 | Processes of making monohydrate form of magnesium ammonium phosphate and processes of making paper using same Processes for producing the monohydrate form of magnesium ammonium phosphate in slurry from use of environmentally friendly reactants are described. Slurry containing the monohydrate form of magnesium ammonium phosphate can be fed directly to, and mixed with, paper ... | 11/16/2010 |
| 7638017 | Filler or pigment or processed mineral for paper, in particular a pigment containing natural CaCO, its manufacturing process, preparations containing it and their applications The invention concerns a pigment, filler or mineral containing a natural calcium carbonate, treated with one of more providers of H3O+ ions and gaseous CO2, allowing a reduction in the weight of paper for a constant surface area with... | 12/29/2009 |
| 7504000 | Method for producing a sheet of paper comprising calcite The invention relates to a method for producing a sheet of paper (6) comprising paper fibres and calcium carbonate mainly in the form of calcite crystals linked directly to the paper fibres. The inventive method is characterised in that it comprises the follo... | 03/17/2009 |
| 7377997 | Fibrous structure comprising a fiber flexibilizing agent system Fibrous structures comprising a fiber flexibilizing agent system, methods for making such fibrous structures and sanitary tissue products comprising such fibrous structures are provided. ... | 05/27/2008 |
| 7364641 | Manufacture of paper and paper board Process for making paper or paper board comprising, forming an aqueous cellulosic suspension, adding a retention system to the cellulosic suspension, draining the suspension on a screen to form a sheet and drying the sheet, wherein the retention system comprises a s... | 04/29/2008 |
| 7311802 | Composite co-structured or co-adsorbed, mineral or organic filler or pigment compounds and the use thereof Composite compounds of co-structured or co-adsorbed organic or mineral fillers or pigments containing at least two organic or mineral fillers or pigments of a different nature and the use thereof in the paper industry for manufacturing paper, filling or coating or f... | 12/25/2007 |
| 7311801 | Newsprint papers The object of the present invention provides a newsprint paper having a friction coefficient in an appropriate range, a sufficient sizing quality, a low “neppari” strength and excellent printability. A newsprint paper having a static friction coefficient in an a... | 12/25/2007 |
| 7303654 | Cellulosic product and process for its production The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous cellulosic suspension; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. T... | 12/04/2007 |
| 7300546 | Cellulose fiber having improved biostability and the resulting products A cellulose fiber having extended biostability and the method of its manufacture are described. While prior treatments of cellulose with biotoxic metal compounds have given improved resistance to decay, these treatments have not been entirely satisfactory where the ... | 11/27/2007 |
| 7297230 | Method for producing cellulose fiber having improved biostability and the resulting products A cellulose fiber having extended biostability and the method of its manufacture are described. While prior treatments of cellulose with biotoxic metal compounds have given improved resistance to decay, these treatments have not been entirely satisfactory where the ... | 11/20/2007 |
| 7294227 | Method and system for the treatment of pulp prior to ozone bleaching A system for treating pulp comprises a dewatering device (2) for dewatering the pulp to a fiber concentration of at least 20%, a closed pulp-shredding vessel (16) for shredding the dewatered pulp, and an outlet pipe (22) from the pulp-shredding ... | 11/13/2007 |
| 7267719 | Use of colloidal PCC The invention relates to a process for regulating the porosity and printing properties of paper, in particular uncoated wood-containing paper such as SC-paper, wherein a sufficient quantity of colloidal PCC having a BET surface area of 10-100 m2/g is used... | 09/11/2007 |
| 7264689 | Method of chemically loading fibers in a fiber suspension A method of continuously loading fibers in a fiber suspension with calcium carbonate. The fibers include a fiber wall surrounding a lumen. A reactant solid in the form of calcium oxide and/or calcium hydroxide is mixed into the fiber suspension with a resultant init... | 09/04/2007 |
| 7244338 | Method for producing cellulose fiber having improved biostability and the resulting products A cellulose fiber having extended biostability and the method of its manufacture are described. While prior treatments of cellulose with biotoxic metal compounds have given improved resistance to decay, these treatments have not been entirely satisfactory where the ... | 07/17/2007 |
| 7182872 | Struvite crystallization The present invention provides a method and apparatus for removing phosphorus from phosphorus containing waste. In one embodiment, the method is preferably carried out by contacting the phosphorus containing waste with a non-cellular membrane and precipitating phosp... | 02/27/2007 |
| 7179348 | Method for producing cellulose fiber having improved biostability and the resulting products A cellulose fiber having extended biostability and the method of its manufacture are described. While prior treatments of cellulose with biotoxic metal compounds have given improved resistance to decay, these treatments have not been entirely satisfactory where the ... | 02/20/2007 |
| 7179347 | Method for fiber stock preparation A method for the preparation of fiber stock for the production of paper or cardboard, including the steps of: a) Supplying fibers in the form of a suspension that has a predetermined solids content, b) Loading of t... | 02/20/2007 |
| 7169258 | Process and a fluffer device for treatment of a fiber stock suspension A device treats a fiber stock suspension with at least one additive, the fiber stock suspension being used for production of at least one of paper and cardboard. The fiber stock suspension includes a suspension medium and a fiber material. The fiber material has fib... | 01/30/2007 |
| 7153390 | Process for manufacturing a cellulosic paper product exhibiting reduced malodor A process for manufacturing a cellulosic paper product is provided. The process comprises forming an aqueous suspension of papermaking fibers; introducing sodium bicarbonate into the aqueous suspension; depositing the aqueous suspension onto a sheet-forming fabric t... | 12/26/2006 |
| 7083703 | Filler and a process for the production thereof A filler comprising cellulose or lignocellulose fibrils on which light-scattering material particles have been deposited, and a process for the manufacture thereof. In the filler according to the invention, an alkyl derivative of cellulose, such as CMC, has been sor... | 08/01/2006 |
| 7060127 | Silica-calcium carbonate composite particles Silica-calcium carbonate composition particles having the characteristics of both synthetic silica and calcium carbonate are described along with paper having the particles internally filled therein and a method for making the particles. In the carbonation re... | 06/13/2006 |
| 7056419 | Methods for modifying electrical properties of papermaking compositions using carbon dioxide Carbon dioxide may be used to adjust the electrical properties of papermaking compositions. Such papermaking compositions may contain a colloid phase, an aqueous phase, and optionally, pulp fibers. Examples of electrical properties whose values may be adjusted inclu... | 06/06/2006 |
| 7052581 | Process of producing magnesium ammonium phosphate in monohydrate form (dittmarite) A process for converting the more easily synthesized and stored AMP hexahydrate into monohydrate of high purity. The resultant monohydrate (dittmarite) can then be either dried to stabilize it, or used directly in cigarette production such as paper making as filler ... | 05/30/2006 |
| 7033428 | Acid stabilized calcium carbonate an method of making it The present invention relates to an acid-stabilized calcium carbonate slurry having a pH of less than 7, preferably between about 6 and about 7, containing water, calcium carbonate, preferably precipitated calcium carbonate, and an acid-stabilizer of a water soluble... | 04/25/2006 |
| 7001483 | Apparatus for making carboxylated pulp fibers An apparatus for carboxylating wood pulp which utilizes the wood pulp bleach plant and the method of carboxylating the pulp which takes place in the bleach plant. ... | 02/21/2006 |
| 6998015 | Method for reducing alkaline darkening of mechanical pulp containing a calcium carbonate filler A method is disclosed for reducing or inhibiting alkaline darkening of mechanical pulp caused by the presence of calcium carbonate filler during production; the method comprises adding a sulfite, or sulfur-containing reducing agent, especially a sulfite to the mecha... | 02/14/2006 |
| 6991677 | Titanium dioxide-calcium carbonate composite particles Titanium dioxide-calcium carbonate composite particles capable of realizing characteristic properties inherent in titanium dioxide such as a high opacity, a process for producing the same, and a complex composition or complex incorporated with the same are provided.... | 01/31/2006 |
| 6966972 | Coating composition, paper product having flexible coating and method for manufacturing a paper product A paper product is described that includes a paper substrate having a first surface and a second surface; a coating layer provided on the first surface of the paper substrate, the coating layer comprising a binder component and a pigment component, wherein the weigh... | 11/22/2005 |
| 6939609 | Filler and pigment The present invention relates to the use of calcium oxalate as a filler or pigment. In particular described herein is a method of reducing the combustion residue of coated paper or cardboard products by replacing at least a part of the conventional pigments and fill... | 09/06/2005 |
| 6939438 | Apparatus for loading fibers in a fiber suspension with calcium carbonate An apparatus for loading fibers in a fiber suspension with calcium carbonate has a housing with an inlet and an accept outlet. A rotatable distribution member is positioned within the housing. A rotor and stator assembly is positioned within the housing radially out... | 09/06/2005 |
| 6893536 | Process and coating composition for coating a paper web The invention relates to a process for producing a coated paper web, According to the process, a paper web is formed from a fibrous raw material in a paper machine, the paper web is coated with a pigment-containing coating mix, and the coated paper web is calendered... | 05/17/2005 |
| 6887351 | Process for regulating the porosity and printing properties of paper by use of colloidal precipitated calcium carbonate, and paper containing such colloidal precipitated calcium carbonate The invention relates to a process for regulating the porosity and printing properties of paper, in particular uncoated wood-containing paper such as SC-paper, wherein a sufficient quantity of colloidal PCC having a BET surface area of 10-100 m2/g is used... | 05/03/2005 |
| 6881298 | Process for loading fibers with calcium carbonate in a plurality of reactors For a process and an apparatus for loading fibers contained in a pulp suspension with calcium carbonate, a calcium oxide and/or a medium containing calcium hydroxide is fed to the pulp suspension, and the so treated pulp suspension is further charged in several reac... | 04/19/2005 |
| 6855229 | Low viscosity bilayer disrupted softening composition for tissue paper Disclosed is a composition for softening a wet laid cellulosic structure. A particularly preferred structure is an absorbent tissue. Further disclosed are tissue structures softened using the composition. The composition includes an effective amount of a softening a... | 02/15/2005 |
| 6818101 | Tissue web product having both fugitive wet strength and a fiber flexibilizing compound A tissue product comprising cellulosic fibers and having at least 10% of fugitive wet strength and at least about 3% of a fiber-flexibilizing composition. The fugitive wet strength can be generated by adding a binder that promotes acid-catalyzed formation of hemiace... | 11/16/2004 |
| 6811653 | Multi-purpose paper, manufacturing method thereof and the application thereof A multi-purpose paper, a manufacturing method thereof, and an application thereof are provided. The method of manufacturing the multi-purpose paper comprises steps of (a) providing a papermaking material and obtaining a clean paper pulp by treating the papermaking m... | 11/02/2004 |
| 6797117 | Low viscosity bilayer disrupted softening composition for tissue paper Disclosed is a composition for softening a wet laid cellulosic structure. A particularly preferred structure is an absorbent tissue. Further disclosed are tissue structures softened using the composition. The composition includes an effective amount of a softening a... | 09/28/2004 |
