Did You Know...
...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8048262 | Rapid fatty acid assay for use in pulp pitch control Methods are provided for determining the surface fatty acid content in a wood pulp or whitewater sample. The methods comprise reacting free fatty acids which are present on the surface of the wood pulp fibers in the sample or in the whitewater with one or more reage... | 11/01/2011 |
| 7691227 | Bleached, mechanical paper pulp and the production method therefor This invention relates to bleached mechanical paper pulps, based on fibrillated fibers of cellulose, hemicelluloses and lignin, containing calcium carbonate, in which calcium carbonate is crystallized and at least partly covers the fibrillated fibers of cellulose, h... | 04/06/2010 |
| 7501041 | Bleached, mechanical paper pulp and the production method therefor This invention relates to bleached mechanical paper pulps, based on fibrillated fibres of cellulose, hemicelluloses and lignin, containing calcium carbonate, in which calcium carbonate is crystallised and at least partly covers the fibrillated fibres of cellulose, h... | 03/10/2009 |
| 7419568 | Chemically cross-linked cellulosic fiber and method of making same The present invention relates to cross-linked cellulosic fiber having improved absorbency characteristics when compared to conventional cross-linked fibers. The cross-linked cellulosic fiber is obtainable by reacting pulp in the sheet or fluff form with one or more ... | 09/02/2008 |
| 7396435 | Method for conveying, mixing, and leveling dewatered pulp prior to drying Methods for conveying, mixing, leveling, and flaking dewatered pulp to produce pulp flakes suitable to be used in a dryer. Methods for producing a consistent flow rate of pulp, and, for producing uniform pulp flakes in terms of pulp flake size and pulp flake moistur... | 07/08/2008 |
| 7390378 | Method of curling fiber and absorbent sheet containing same A method of providing papermaking fibers with durable curl comprising: a) introducing papermaking fiber into a rotatable drum adapted for operation at elevated pressure; b) rotating the drum containing the papermaking fiber while maintaining: i) the fiber in aqueous... | 06/24/2008 |
| 7381294 | Method and apparatus for manufacturing microfibrillated cellulose fiber A method for producing a microfibrillated cellulose, which comprises subjecting a slurry containing a pulp having a solids concentration of 1 to 6 wt % to the treatment with a disc refiner repeatedly ten times or more, to thereby prepare a microfibrillated cellulose... | 06/03/2008 |
| 7364639 | Method of producing twisted, curly fibers A method of forming twisted, curly fibers from a wet wood pulp without the aid of a wet fluffing process or a chemical cross-linker. The method includes forming the wet wood pulp into fiber bundles and subsequently thermally drying the fiber bundles. The invention a... | 04/29/2008 |
| 7357888 | Method of producing headliners, door panels and interior trim parts A method of making an article includes the steps of feeding fiber yarn, bundle or roving into a chopping device, chopping the fiber yarn, bundle or roving into fiber segments, texturizing the fiber segments, simultaneously introducing the fiber segments and a binder... | 04/15/2008 |
| 7358216 | Lubricant compositions and methods A process is disclosed for manufacturing a lubricant composition comprising combining a superabsorbent polymer with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in w... | 04/15/2008 |
| 7351306 | Cooking of cellulose pulp in a cooking liquor containing pre-evaporated black liquor The method is for cooking of cellulose pulp in which the raw material, preferably in the form of chips, undergoes a successive elevation of temperature towards the cooking temperature while the chips are first impregnated with an impregnation liquor followed by cook... | 04/01/2008 |
| 7338926 | Lubricant compositions and methods A process is disclosed for manufacturing a lubricant composition comprising combining a superabsorbent polymer with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in w... | 03/04/2008 |
| 7320740 | Chemically cross-linked cellulosic fiber and method of making same The present invention relates to cross-linked cellulosic fiber having improved absorbency characteristics when compared to conventional cross-linked fibers. The cross-linked cellulosic fiber is obtainable by reacting pulp in the sheet or fluff form with one or more ... | 01/22/2008 |
| 7314561 | Method for purifying water An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita... | 01/01/2008 |
| 7303707 | Processing of ligno-cellulose materials A method of processing lignocellulosic material includes the steps of comminuting the material to a size that it can be processed in a hydrothermal pressure vessel, drying the material in moving air to obtain a specific moisture content, packing the material into th... | 12/04/2007 |
| 7300965 | Mixed polymer network A mixed polymer network made from reacting a carboxyalkyl cellulose and a synthetic water-soluble polymer with a crosslinking agent. ... | 11/27/2007 |
| 7300539 | Treatment of solid containing material derived from effluent A method of treating solid containing material derived from effluent or sludge from a plant for deinking paper, the material containing calcium in the form of one or more insoluble calcium compounds, the method including the steps of treating the material with an ac... | 11/27/2007 |
| 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 |
| 7290353 | System for making dried singulated crosslinked cellulose pulp fibers This invention provides a dried singulated crosslinked cellulose pulp fiber product as well as an apparatus and a method for forming singulated, crosslinked, and dried fibers. In accordance with the process, a feed pulp containing a crosslinker is delivered to a jet... | 11/06/2007 |
| 7291247 | Absorbent sheet made with papermaking fibers with durable curl A process for bleaching high bulk cellulosic fiber and producing a durable elevated curl index includes: (a) concurrently bleaching, heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency generally under condition... | 11/06/2007 |
| 7288196 | Plant matter packaging method An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita... | 10/30/2007 |
| 7288167 | Cross-linked pulp sheet The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of mercerized cellulosic fibers with a purity of at least 95% is treated with a solution containing a carboxylic acid cross-linking agent. The treated cellulosic fibrous material i... | 10/30/2007 |
| 7285162 | Titanium dioxide pigment having improved light stability In various embodiments, methods and compositions are provided comprising titanium dioxide and silica spacers having improved light stability for use in paper, plastic and paints. ... | 10/23/2007 |
| 7285184 | Cellulosic fiber pulp and highly porous paper products produced therefrom A cellulosic pulp, method of producing the pulp, and associated paper product produced therefrom produced by providing mercerized cellulosic fibers and depositing a hemicellulose coating upon the mercerized fibers. The hemicellulose is deposited upon the fibers by c... | 10/23/2007 |
| 7267773 | Integrated system and method for purifying water, producing pulp and paper, and improving soil quality An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita... | 09/11/2007 |
| 7264690 | Catalyzer for clean pulping and process for using the same A catalyzer for clean pulping includes sodium salicylate, anion silicate softener, cooking aids, liquid(gaseous) chlorine and water. A process for using the catalyzer for clean pulping includes the following steps: 1, cutting and impurities removing for the r... | 09/04/2007 |
| 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 |
| 7216652 | Smoking article wrapper with improved filler The invention relates to a tobacco smoking article wrapper which selectively reduces the content of gaseous components in the smoke delivered during the use of the smoking article. The gaseous components can be low molecular weight aldehydes in the smoke produced du... | 05/15/2007 |
| 7214291 | Method for the modification of cellulose fibres The invention relates to a method for the modification of cellulose fiber with the object of increasing the strength properties of the pulp. Cellulose derivative, preferably in the form of CMC, is added in association with alkali cooking and/or delignification of ce... | 05/08/2007 |
| 7208064 | Method for embossing air-laid webs using laser engraved heated hard rubber embossing rolls A method of making an embossed air-laid absorbent sheet includes: depositing a dry web of fibers on a foraminous support; embossing the compacted web with a laser engraved roll provided with a hard rubber embossing surface having an embossing pattern with a depth of... | 04/24/2007 |
| 7201825 | Process for making a flowable and meterable densified fiber particle Discrete particles of cellulosic material are flowable and meterable. They are easily dispersible in an aqueous or a dry medium. The particles comprise singulated cellulose fibers that have been densified. The particles have a density of at least 0.3 g/cc. ... | 04/10/2007 |
| 7195695 | Cross-linked cellulose fibers and method of making same The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of cellulosic fibers treated with a caustic solution under non-mercerizing conditions is cross-linked with a solution containing polymeric polycarboxylic acid cross-linking agents.... | 03/27/2007 |
| 7195694 | Reinforcing and/or process fibres based on vegetable fibres and production thereof The present invention relates to reinforcing and/or process fibres based on vegetable fibres whose elementary fibres are fibrillated and to a process for their production. The reinforcing and/or process fibres are characterized in that the elementary fibres have a f... | 03/27/2007 |
| 7189306 | Process of treating lignocellulosic material to produce bio-ethanol This invention relates to a process of treating a lignocellulosic material to produce bio-ethanol. The process includes the steps of: (a) exposing the lignocellulosic material to conditions including a pH not less than about 8, and steam at a first pressure, to prod... | 03/13/2007 |
| 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 |
| 7175792 | Method for producing cellulose shaped-bodies Process for manufacture of cellulose mouldings, such as fibres, filaments, or films, from TCF-bleached or ECF-bleached cellulose, in which the bleached cellulose is dissolved in an aqueous tertiary aminoxide to form a mouldable cellulose, the cellulose solution defo... | 02/13/2007 |
| 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 |
| 7166190 | Methods for forming a fluted composite Methods for forming an absorbent fibrous composite containing absorbent material dispersed in bands through the composite and along the composite's length are disclosed. The methods generally include depositing a fibrous slurry on a foraminous support to form a web ... | 01/23/2007 |
| 7138035 | Process for the selective modification of carbohydrates by peroxidase catalyzed oxidation The present invention relates to an environmentally friendly process for the selective oxidation of carbohydrates. The process comprises the addition of a hydroperoxide, including hydrogen peroxide, to a carbohydrate having primary alcohol groups, particularly inclu... | 11/21/2006 |
| 7135557 | Hypochlorite free method for preparation of stable carboxylated carbohydrate products A method of making a carboxylated carbohydrate is disclosed, cellulose being a preferred carbohydrate material. Carboxylated cellulose fibers can be produced whose fiber strength and degree of polymerization is not significantly sacrificed. The method involves the u... | 11/14/2006 |
