With Non-fiber Material Added To Product Patents (Class 162/10)
  • Patent number: 11255047
    Abstract: Disclosed in one aspect is a pickled vegetable-based edible packaging paper, the raw material of which is composed of the following components in parts by weight: 92-95 parts of a high dietary fiber-level pickled vegetable, a compounding thickener (0.6-0.8 parts of pectin, 0.6-0.8 parts of potato starch, and 0.2-0.4 parts of soy protein), and a compounding plasticizer (3-4 parts of sorbitol, and 0.5-1.5 parts of citral); and further disclosed in another aspect is a method for preparing a pickled vegetable-based edible packaging paper. The pickled vegetable paper of the present invention is a novel pickled vegetable-based product having both edible and practical functions, which product is rich in dietary fibers, retains the unique flavor and color of the pickled vegetable, has toughness and non-stickiness to teeth, and is soft and easy to process after being wetted.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: February 22, 2022
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Jinhong Wu, Quan Jin, Zhengwu Wang, Qiaoyu Wu, Wei Zhang, Danlu Yang, Ying Yu, Wenhui Li, Xinzhe Gu, Shaoyun Wang, Huiyun Chen
  • Patent number: 10745860
    Abstract: A composition including a first fiber derived from a first natural source, and a second fiber derived from a fruit, the second fiber being substantially free of surface active components. Surface active components may include oils, fatty acids, or other aliphatic and aromatic moieties that compromise edge wick performance. A process of manufacturing a paperboard product may include removing surface active components from fruit fiber to be included in manufacturing paper products to obtain a paper product with improved edge wicking properties.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 18, 2020
    Assignee: The Coca-Cola Company
    Inventors: Kim W. Robinson, Ronald Moffitt, Peter R. Moss, Simon Gainey
  • Patent number: 10662301
    Abstract: A method for producing a lignocellulose plastic composite material, in particular a simpler and more cost-effective option for producing lignocellulose plastic composite materials. Thermoplastic particles and a mixture of water and lignocellulose-containing particles are supplied to a refiner, and the lignocellulose-containing particles are reduced to fibers in the refiner. The thermoplastic particles are supplied to the refiner in a melted or fused state, or are melted or fused in the refiner, so that the melted or fused thermoplastic particles and the lignocellulose-containing particles that are reduced to fibers form material composite particles in the refiner.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: May 26, 2020
    Assignee: Universitaet Hamburg
    Inventors: Andreas Krause, Oliver Mertens, Othar Kordsachia
  • Patent number: 9909260
    Abstract: A system and method of manufacturing a feedstock for producing paper fiber from fruit of a plant may include providing a by-product source inclusive of fiber from the edible fruit after a process for removing a majority of the edible fruit is used to produce a food. One or more treatment processes to brighten the fruit by-product may be performed. The feedstock may be produced from the brightened fruit by-product.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 6, 2018
    Assignee: The Coca-Cola Company
    Inventors: Peter R. Moss, Simon Gainey, Doug A. Bippert, Philip G. Crandall, Rajesh Kumar Garg, Kim W. Robinson
  • Patent number: 8864939
    Abstract: A system and method of manufacturing a feedstock for producing paper fiber from fruit of a plant may include providing a by-product source inclusive of fiber from the edible fruit after a process for removing a majority of the edible fruit is used to produce a food. One or more treatment processes to brighten the fruit by-product may be performed. The feedstock may be produced from the brightened fruit by-product.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: October 21, 2014
    Assignee: The Coca-Cola Company
    Inventors: Peter R. Moss, Doug A. Bippert, Rajesh Kumar Garg, Kim W. Robinson, Simon Gainey, Philip G. Crandall
  • Patent number: 8864940
    Abstract: An article including a first fiber derived from a first natural source and a second fiber derived from a fruit. A method of manufacturing an article may include combining a first and second fiber to form a fiber mixture, where the first and second fibers are obtained from discrete materials, and where at least one of the fibers is derived from an edible fruit of a plant. The article may be formed from the fiber mixture.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: October 21, 2014
    Assignee: The Coca-Cola Company
    Inventors: Peter R. Moss, Doug A. Bippert, Rajesh Kumar Garg, Kim W. Robinson, Simon Gainey, Philip G. Crandall
  • Patent number: 8715463
    Abstract: A particle or particles of cellulosic wood pulp fibers having a top and bottom face and a hexagonal perimeter, and methods of using it.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: May 6, 2014
    Assignee: Weyerhaeuser NR Company
    Inventors: Christopher A Mann, David G Marsh, Robert T Hamilton, Charles E Miller, Harshadkumar Shah
  • Publication number: 20130310489
    Abstract: A process for providing and processing natural fibres, wherein the process includes the following steps: 1) providing a biomass including fibres and having a dry substance content of at most 50% by weight; 2) adding water to produce a suspension including the biomass; 3) extracting the natural fibres from the biomass; 4) separating the liquid from the suspension; 5) at least single repetition of at least one of steps 2) to 4), the suspension having at least one agent for finishing of the fibres in the last repetition of at least one of steps 2) to 4); and 6) drying the natural fibres.
    Type: Application
    Filed: January 26, 2012
    Publication date: November 21, 2013
    Applicant: BIOWERT AG
    Inventor: Michael Ludwig Gass
  • Publication number: 20130306257
    Abstract: A pulp making process in which fibrous cellulosic material is pulped to form an aqueous suspension of cellulosic material, the suspension is drained through a screen to form a pulp sheet and that the pulp sheet is dried to form a dry market pulp, in which a water soluble cationic polymer is added to the suspension as the sole drainage aid wherein the water-soluble cationic polymer is either, i) a copolymer comprising (a) between 1 and 70 mole % (meth) acrylamide and (b) between 30 and 99 mole % (meth) acryloyloxyethyl-trimethyl ammonium chloride with an intrinsic viscosity between 5 and 9 dl/g; or ii) a hydrolysed homopolymer of vinylformamide comprising between 1 and 100 mole % vinyl amine units and having a K value of between 45 and 240. The process of the invention provides improved drainage time and solids content of the dewatered pulp.
    Type: Application
    Filed: November 14, 2011
    Publication date: November 21, 2013
    Applicant: BASF SE
    Inventors: Christian Jehn-Rendu, Joachim Hege, Detlef Kannengießer
  • Publication number: 20130228297
    Abstract: The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starch by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 5, 2013
    Applicant: FIBRIA CELULOSE S/A
    Inventors: Romolo Ranocchia, Ademilson Massoquete, Danilo Oyakawa
  • Patent number: 8372320
    Abstract: A method of producing dried cellulose nanofibrils includes atomizing an aqueous suspension of cellulose nanofibrils and introducing the atomized aqueous suspension into a drying chamber of a drying apparatus. The aqueous suspension is then dried, thereby forming substantially non-agglomerated dried cellulose nanofibrils.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: February 12, 2013
    Assignee: University of Maine System Board of Trustees
    Inventors: Douglas J. Gardner, Yousoo Han, Yucheng Peng
  • Publication number: 20120205059
    Abstract: In a pretreatment process for lignocellulosic biomass, lignin is separated from cellulose by a reactive extrusion process with flowability control of the biomass suspension. Flowability control via incorporation of flowability control agents renders biomass suspensions processable using equipment in which relatively high shearing stresses and pressures can be applied. In one embodiment, particulate cellulosic biomass is added to a fully-intermeshing twin-screw extruder with pH adjusters, water and flowability control agents. Upon the incorporation of the flowability control agent, the biomass suspension flows without phase separation and thus can be subjected to high mechanical shearing stresses and chemical reaction in the extruder. The screw configuration creates multiple mixing zones within the confines of the extruder. The flowability control agent may be a water-soluble polymer that allows a hydrogel to be formed or may be a recycled portion of the black liquor from the reactive extrusion process.
    Type: Application
    Filed: January 24, 2012
    Publication date: August 16, 2012
    Inventors: Semra Senturk-Ozer, Halil Gevgilili, Dilhan M. Kalyon
  • Patent number: 8231763
    Abstract: The invention relates to a wood composition containing olefin and raw wood materials, the use of said olefins for rendering raw wood materials water repellent, and a method for producing wood materials therefrom. The raw wood materials contain or are made of lignocellulose and are provided in the form of fibers, strands, or chips.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: July 31, 2012
    Inventors: Thomas Buchholz, Gernot Meyer, Marc Prüsmann
  • Patent number: 7905987
    Abstract: A method for making an animal bedding fiber product, the method includes providing fiber from paper sludge, formulating the fiber in a mixture including a first desiccant agent including ash, so as to form a friable aggregate. Further, a fiber product including at least one short paper fiber from a secondary fiber, one or more inorganic fillers including kaolin clay; and a first desiccant agent including ash. Further still, a heatless process for making a fiber product including providing fiber from paper sludge, formulating the fiber in a non-active heat generating mixture including a first desiccant agent including ash, so as to form a waste fiber product.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: March 15, 2011
    Assignee: Casella Waste Systems, Inc.
    Inventor: Patrick Kennedy
  • Patent number: 7850821
    Abstract: A household thin paper, that offers flexibility and further difficulty in tearing, comprising a polyester-based compound represented by General Formula (1): wherein R1 is HO— or HO(R2O)a-, R2 is an alkylene group having 2 or 3 carbon atoms, only a single type of R2O or two types of R2O can be attached randomly or as a block, “a” is 1 to 200, all “a”s may be same or different in an identical molecule, b is 2 to 100, and R3 is a hydrogen atom or the like.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: December 14, 2010
    Assignee: Daio Paper Corporation
    Inventors: Tetsuya Uehara, Akira Hirasawa, Hiroshi Ono, Abdolreza Nezamoleslami, Kazuaki Fujimori
  • Publication number: 20100307702
    Abstract: A particle or particles of cellulosic wood pulp fibers having a top and bottom face and a hexagonal perimeter, and methods of using it.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 9, 2010
    Applicant: Weyerhaeuser NR Company
    Inventors: Christopher A. Mann, David G. Marsh, Robert T. Hamilton, Charles E. Miller, Harshadkumar M. Shah
  • Publication number: 20100068366
    Abstract: The disclosed invention relates to a process for making a multiphase mixture, comprising: flowing a first fluid stream through a process microchannel, the first fluid stream comprising at least one liquid and/or at least one gas, the process microchannel having an apertured section; flowing a second fluid stream through the apertured section into the process microchannel in contact with the first fluid stream to form the multiphase mixture, the second fluid stream comprising at least one gas and/or at least one microbody-forming material, the first fluid stream forming a continuous phase in the multiphase mixture, the second fluid stream forming a discontinuous phase dispersed in the continuous phase.
    Type: Application
    Filed: November 23, 2009
    Publication date: March 18, 2010
    Inventors: Anna Lee Tonkovich, Laura J. Silva, David John Hesse, Michael Alan Marchiando, Micheal Jay Lamont, Dongming Qiu, Terrence Andrew Dritz, Kristina M. Pagnotto, Richard Stevenson, Steven T. Perry, Maddalena Fanelli, Ravi Arora, Bin Yang, Sean Patrick Fitzgerald, Timothy J. Sullivan, Kai Tod Paul Jarosch, Thomas Yuschak
  • Publication number: 20090056888
    Abstract: A process to load a fibrous slurry with a filler, in particular with calcium carbonate (fiber loading). The loaded fibrous slurry is divided into at least two fractions, a light fraction and a heavy fraction, for which purpose hydrocyclones are used in one embodiment. In this case, the different fractions have a different level of loading, that is to say the quantity of precipitated fillers adhering to the fibers is different in each case. There is the possibility of feeding the less highly loaded fibers back into the loading process, in order to increase the level of loading of this fraction further.
    Type: Application
    Filed: October 21, 2008
    Publication date: March 5, 2009
    Inventors: Klaus Doelle, Joachim Henssler
  • Publication number: 20080135194
    Abstract: Methods are provided for treating suspensions of particles to improve the drainage rate and/or the solids content of flocs of the particles. The method includes the steps of (i) providing a suspension which comprises particles in a fluid; (ii) adding a cyclodextrin compound to the suspension; and (iii) dewatering the suspension by removing at least a portion of the fluid to form a cake comprising the particles. The cyclodextrin compound desirably is added in an amount effective to increase the dewatering rate of the flocs, to increase the solids content, or both, over that rate, solids content, or both, that would be obtained without the addition of the cyclodextrin compound. The suspension may be, for example, a biological or non-biological sludge, or a suspension of pulp fibers, such as in a pulping or papermaking process.
    Type: Application
    Filed: February 14, 2006
    Publication date: June 12, 2008
    Applicant: GEORGIA TECH RESEARCH CORPORATION
    Inventor: Sujit Banerjee
  • Patent number: 7378149
    Abstract: The present invention relates to a high strength material and a high strength molded article including 65 to 100 wt. % of cellulose microfibrils; and products comprising these. The material, which is lightweight and has a very high strength, can be used for various purposes and can be produced by recycling wastepaper, used cloth and the like. Furthermore, by appropriately selecting the type and/or amount of binder, the material comprising microfibrils as a main component can be decomposed by microbes or the like after being dumped as waste, and is thus friendly to the global environment.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: May 27, 2008
    Assignee: Kansai Technology Licensing Organization Co, Ltd.
    Inventors: Hiroyuki Yano, Susumu Nakahara
  • Patent number: 7300546
    Abstract: 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 fiber had to be refined before use. Refining energy was very high and fiber length loss was substantial. Treatment of cellulose fiber with dideyldimethylammonium chloride (DDAC) or bromide (DDAB), these materials in combination with low levels of copper, or low levels of copper alone, has given a product with very good biostability without a major increase in refining energy or loss of fiber length. The treated fiber is particularly advantageous as a reinforcing component for cement board products.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: November 27, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Richard A. Jewell, Julie A. Reimer
  • Patent number: 7297230
    Abstract: 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 fiber had to be refined before use. Refining energy was very high and fiber length loss was substantial. Treatment of cellulose fiber with dideyldimethylammonium chloride (DDAC) or bromide (DDAB), these materials in combination with low levels of copper, or low levels of copper alone, has given a product with very good biostability without a major increase in refining energy or loss of fiber length. The treated fiber is particularly advantageous as a reinforcing component for cement board products.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: November 20, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Richard A. Jewell, Julie A. Reimer
  • Patent number: 7244338
    Abstract: 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 fiber had to be refined before use. Refining energy was very high and fiber length loss was substantial. Treatment of cellulose fiber with didecyldimethylammonium chloride (DDAC) or bromide (DDAB), these materials in combination with low levels of copper, or low levels of copper alone, has given a product with very good biostability without a major increase in refining energy or loss of fiber length. The treated fiber is particularly advantageous as a reinforcing component for cement board products.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: July 17, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Richard A. Jewell, Julie A. Reimer
  • Patent number: 7179348
    Abstract: 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 fiber had to be refined before use. Refining energy was very high and fiber length loss was substantial. Treatment of cellulose fiber with didecyldimethylammonium chloride (DDAC) or bromide (DDAB), these materials in combination with low levels of copper, or low levels of copper alone, has given a product with very good biostability without a major increase in refining energy or loss of fiber length. The treated fiber is particularly advantageous as a reinforcing component for cement board products.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: February 20, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Richard A. Jewell, Julie A. Reimer
  • Patent number: 7045027
    Abstract: The present invention relates to a method of producing a fiber board characterized in that it comprises the following processes (a)–(f): (a) a separating process of a bast portion, (b) a fiberizing process by defibrating the bast portion of the kenaf, (c) a preparing process of a mat comprising the kenaf fibers having an average length of 10–200 mm and an average diameter of 10–300 ?m, (d) a supplying process of an adhesive agent into the fiber mat, (e) a drying process of the adhesive agent, and (f) a molding process by heating said fiber mat under pressure to form a fiber board having a density of 600–900 kg/m3.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: May 16, 2006
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Masayuki Okuzawa, Kenji Ohnishi, Yuzo Okudaira, Hideyuki Ando, Kazunori Umeoka, Bunkai Ryu, Shigeki Naito, Ryo Sugawara
  • Patent number: 6777103
    Abstract: A fiber cement composite material providing improved rot resistance and durability, the composite material incorporating biocide treated fibrous pulps to resist microorganism attacks. The biocide treated fibers have biocides attached to inner and outer surfaces of individualized fibers to protect the fibers from fungi, bacteria, mold and algae attacks. The biocides selected have strong affinity to cellulose and do not interfere with cement hydration reactions. This invention also discloses the formulation, the method of manufacturing and the final fiber cement products using the biocide treated fibers.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: August 17, 2004
    Assignee: James Hardie Research Pty Limited
    Inventors: Donald J. Merkley, Caidian Luo
  • Publication number: 20040140071
    Abstract: An object of the present invention is to provide a laminated photocatalytic pulp paper having a variety of uses such as a filter material, a packaging material, a construction material and the like, which has the antibacterial property, the bad smell degrading property and handful substance oxidatively degrading property, is useful for use in air treatment, water treatment and soil treatment and, at the same time, can improve the photocatalytic activity effect itself of titanium oxide. According to the present invention, there is provided a laminated photocatalytic pulp paper characterized in that a wastepaper pulp is laminated on a photocatalytic pulp composition in which 40-95 wt % of a pulp and/or a paper having the water content of 3 wt % or less, an average fiber diameter of 5-300 &mgr;m and an average fiber length of 0.1-70 mm are blended with 5-60 wt % of titanium oxide, and a paper string comprising this pulp paper.
    Type: Application
    Filed: January 2, 2004
    Publication date: July 22, 2004
    Inventor: Nishibori Sadao
  • Patent number: 6579410
    Abstract: A new composite material which is useful as a pigment in paper making or paper coating is produced by precipitating a white insoluble pigment compound, eg calcium carbonate, in an aqueous suspension containing a mixture of fine particulate material eg titanium dioxide particles and fibers, eg cellulosic fibers. These suspended solids in the mixture are derived from separate stocks and added together to produce the composite pigment material. The new material is a bonded matrix of the fibers and the white pigment compound having particles of the fine particulate material, eg TiO2, dispersed and bonded within the matrix. The new material may exist in the form of particles in dry or wet form which may be further treated in a known way prior to use in paper making or paper coating.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: June 17, 2003
    Assignee: Imerys Minerals Limited
    Inventors: Ian Stuart Bleakley, Jonathan Stuart Phipps, Paul A Rey, Jose M Rodriguez, Hannu Olavi Ensio Toivonen
  • Publication number: 20030051833
    Abstract: There is provided a photocatalytic pulp composition having the antibacterial, bad smell degrading and harmful substance oxidatively degrading effects in various wide uses such as a filter material, a packaging material, a building material. A photocatalytic pulp composition is effectively used in the air treatment, the water treatment and the soil treatment and improves the photocatalytic activity effect itself.
    Type: Application
    Filed: May 17, 2002
    Publication date: March 20, 2003
    Inventor: Sadao Nishibori
  • Patent number: 6425973
    Abstract: A method of treating solid containing material derived from effluent or sludge from a plant for de-inking 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 acid to cause dissolution of the calcium thereby forming a calcium ion-containing solution in which insoluble solids are suspended, separating the solution from the insoluble solids and incinerating the separated solids. The solution containing calcium ions may be treated by adding one or more reagents to form a calcium compound precipitate, eg calcium carbonate. The particulate solids produced following the incineration step and following the precipitate formation may be employed as pigments or fillers in paper making or paper coating.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 30, 2002
    Assignee: Imerys Minerals Limited
    Inventor: Jonathan Stuart Phipps
  • Publication number: 20020074095
    Abstract: The invention relates to a process for producing wood particleboard, in which wood particles, if appropriate after a preceding comminution step, are treated with a crosslinkable binder and are subsequently pressed together under pressure and, if desired, elevated temperature to produce boards, wherein the thermoplastic binder comprises two constituents A) and B), where A) is a copolymer comprising one or more comonomer units selected from the group consisting of vinyl esters of unbranched or branched alkylcarboxylic acids having from 1 to 18 carbon atoms, acrylic esters or methacrylic esters of branched or unbranched alcohols having from 1 to 15 carbon atoms, dienes, olefins, vinylaromatics and vinyl halides, and from 0.
    Type: Application
    Filed: October 31, 2001
    Publication date: June 20, 2002
    Applicant: Wacker Polymer Systems GmbH & Co. KG
    Inventors: Konrad Alfons Wierer, Abdulmajid Hashemzadeh, Klaus Marquardt
  • Publication number: 20020074096
    Abstract: The invention relates to a process for producing wood fiberboard by pressing wood fibers which have been treated with binder, in which the wood fibers are boiled and milled at elevated temperature under steam pressure in a refiner unit, subsequently are transferred to a blow-line, then dried and finally pressed under pressure and, if desired, at elevated temperature to produce boards, wherein the treatment with binder is carried out using a multi-component binder, preferably with one component A) containing functional groups which are nonreactive at elevated temperature and a second component B) containing functional groups which are reactive at elevated temperature the component A) being added in the refiner unit at a temperature of from 120° C. to 200° C. prior to the milling step, during the milling step, or shortly after the milling step in the front section of the blow-line and component B) being added at a lower temperature of not more than 150° C.
    Type: Application
    Filed: October 31, 2001
    Publication date: June 20, 2002
    Applicant: Wacker Polymer Systems GmbH & Co. KG
    Inventors: Konrad Alfons Wierer, Abdulmajid Hashemzadeh, Klaus Marquardt
  • Patent number: 6336993
    Abstract: A system and method for feeding a slurry of comminuted cellulosic fibrous material such as wood chips to the top of a treatment vessel such as a continuous digester also treat the material to remove metals before digestion. During pumping of the slurry with at least first and second series connected pumps, at or upstream of at least one of the pumps chemicals (acids and/or chelating agents) which dissolve the metals in the material are added, and preferably some of the liquid is removed so as to purge at least about 10% (e.g. about 20-80%) of the metals in the material. The metal removal preferably takes place substantially immediately before alkaline digestion.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: January 8, 2002
    Assignee: Andritz-Ahlstrom Inc.
    Inventor: C. Bertil Stromberg
  • Patent number: 6309509
    Abstract: This invention relates to compositions, paper, thermoplastic sheets, and medical paper containing cellulose ester, alkylpolyglycoside (APG) or a mixture of APG and polyether glycol, and, optionally, cellulose. The process of incorporating APG or a mixture of APG and polyether glycol in paper composed of cellulose ester fibers and cellulose fibers and to calendaring of such paper is also disclosed.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: October 30, 2001
    Assignee: Eastman Chemical Company
    Inventors: Charles Michael Buchanan, Eric Eugene Ellery, Matthew Davie Wood
  • Publication number: 20010004869
    Abstract: The present invention relates to compositions comprising essentially amorphous cellulose nanofibrils, at least one additive chosen from carboxycellulose with a degree of substitution of more than 0.95, a natural polysaccharide, a polyol, and optionally at least one co-additive, the content of additive and of optional co-additive being less than or equal to 30% by weight relative to the weight of nanofibrils and of additive and of optional co-additive. Similarly, a subject of the invention is a process for preparing such compositions, which consists in adding the additive and the optional co-additive to a suspension of essentially amorphous nanofibrils, and then in drying the suspension thus supplemented. The compositions obtained are readily redispersable and conserve their initial Theological properties.
    Type: Application
    Filed: February 14, 2001
    Publication date: June 28, 2001
    Inventors: Robert Cantiani, Gilles Guerin, Alain Senechal, Isabelle Vincent, Joel Benchimol
  • Patent number: 6193841
    Abstract: This invention relates to compositions, paper, thermoplastic sheets, and medical paper containing cellulose ester, alkylpolyglycoside (APG) or a mixture of APG and polyether glycol, and, optionally, cellulose. The process of incorporating APG or a mixture of APG and polyether glycol in paper composed of cellulose ester fibers and cellulose fibers and to calendaring of such paper is also disclosed.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: February 27, 2001
    Assignee: Eastman Chemical Company
    Inventors: Charles Michael Buchanan, Eric Eugene Ellery, Matthew Davie Wood
  • Patent number: 5968634
    Abstract: A paper or transparency receiving toner to be fixed by heat has an ionomeric resin on its outer surface. For universal application, the outer layer is a blend of non-ionomeric resin, such as styrene acrylate copolymer, and an ionomer, which permits the material of the toner to molecularly intermingle with the blend during heat fixing. Irradiation raises the melting point of the ionomeric resin to prevent delamination. The resulting printing is strongly bonded to the substrate and is of excellent quality.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: October 19, 1999
    Assignee: Lexmark International, Inc.
    Inventors: Jan Rose Heeg, Rolfe Frank Kruckas, Ashok Murthy, Stephen Todd Olson, Jeanne Marie Saldanha-Singh, Rita Sharma, Ajay Kanubhai Suthar, Richard Barber Watkins, Joe Williams Woods
  • Patent number: 5804035
    Abstract: A process is dislcosed for recovering chips and fibers from residues of ter-derived materials, old pieces of furniture, production residues, water and other timber-containing materials glued with urea-formaldehyde binders or other binders capable of being hydrolysed or chemically disintegrated by disintegrating the timber-derived materials at a high temperature. In a first step of the process, the residues of timber-derived materials are impregnated with an impregnating solution and previously swollen until they have absorbed at least 50% of their own weight of impregnating solution. In a second step, the thus impregnated residues of timber-derived materials are heated up to 80.degree. C. to 120.degree. C. The thus disintegrated residues of timber-derived materials are then sorted by sieving and/or wind screening. The residues of timber-derived material have edges of at least 10 to 20 cm length.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: September 8, 1998
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Andreas Michanickl, Christian Boehme
  • Patent number: 5741572
    Abstract: A paper or transparency receiving toner to be fixed by heat has an ionomeric resin on its outer surface. For universal application, the outer layer is a blend of non-ionomeric resin, such as styrene acrylate copolymer, and an ionomer, which permits the material of the toner to molecularly intermingle with the blend during heat fixing. Irradiation raises the melting point of the ionomeric resin to prevent delamination. The resulting printing is strongly bonded to the substrate and is of excellent quality.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: April 21, 1998
    Assignee: Lexmark International, Inc.
    Inventors: Jan Rose Heeg, Rolfe Frank Kruckas, Ashok Murthy, Stephen Todd Olson, Jeanne Marie Saldanha-Singh, Rita Sharma, Ajay Kanubhai Suthar, Richard Barber Watkins, Joe William Woods
  • Patent number: 5624616
    Abstract: A method for making lignocellulose fibers, which may be optionally coated with a suitable thermoplastic, wherein the starting materials may be chosen from a wide variety of generally non-recyclable contaminated wood, paper, and/or plastic products. A mixture of the preferred lignocellulose material characterized by a relatively low moisture content and the desired thermoplastics is refined and comminuted in a steam atmosphere which is at a temperature, pressure, and duration sufficient to soften both the lignin within the wood chips and the thermoplastic polymer. The temperature of the steam atmosphere is relatively high because of the use of dry wood chips which do not result in excessive vaporization during heating. The comminution of the mixture occurs by auguring the mixture between counter-revolving dual refining discs in the elevated temperature, pressurized steam atmosphere.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: April 29, 1997
    Inventor: S. Hunter W. Brooks
  • Patent number: 5582682
    Abstract: The specification discloses an unorthodox system for manufacturing strong, light-weight and weather-resistant cellulosic composite materials from discarded paper and newsprint, and papermill sludge--and from an unlimited variety of particulated fibrous lignocellulosics--without the use of an extrinsic adhesive. Both the matrix-forming resin and the fiber-substrate, which comprise the entire composite, are spontaneously created in situ at ambient conditions by the ammoniation of a mixture of a protein-containing material and a particulated cellulosic. Heating an article shaped from such a mixture to above 175.degree. C. polymerizes the resin and bonds the fiber-substrate into a cellulosic composite product. Also disclosed is a process for manufacturing reinforced and laminated composites as well as a composition which simplifies the production of both cellulosic composites and all-biomass thermosetting resins.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: December 10, 1996
    Inventor: Arthur Ferretti
  • Patent number: 5000822
    Abstract: An imitation leather product and a process for the preparation of the imitation leather product from natural hemp which comprises the steps of (a) firstly digesting natural hemp fiber with weak alkali solution, (b) secondly digesting with ammonia gas, (c) presoak treating either with methylol urea and ammonium phosphate, or sodium chromate and sulfuric acid, and immediately adding ammonia thereto, respectively, (d) beating with SBR resin and cyclohexylcarboxyl diphenylamino thiazolyl sulfonamide, (e) jetting through a multiple stage fiber jetting device, and soaking in a soaking bath container containing methylphenol and SBR resin.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: March 19, 1991
    Assignees: Tae S. Hwang, Young K. Hong
    Inventors: Tae S. Hwang, Kyung H. Kim
  • Patent number: 4882190
    Abstract: A method of producing sulfite-free sugarbeet pulp involving contacting sugarbeet pieces with a sulfite-free aqueous solution containing a non-sulfite antioxidant composition containing sodium erythorbate, calcium chloride, araboascorbic acid, citric acid, trisodium citrate, and mixtures thereof.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: November 21, 1989
    Assignee: American Crystal Sugar Company
    Inventors: Roland F. Olson, Richard R. Fergle
  • Patent number: 4875974
    Abstract: An absorbent material derived from a vegetable material containing pectin.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: October 24, 1989
    Assignee: The Procter & Gamble Company
    Inventor: Thomas F. Rich
  • Patent number: 4533436
    Abstract: A method and apparatus for producing a synthetic board from cellulosic and/or lignocellulosic materials wherein a thermosettable binder, preferably a polyisocyanate binder, is applied through a cooled nozzle to the hot and wet fibrous material in the blow line out of the refiner of a board forming process. Polyphenylpolyisocyanates, such as a mixture of diphenylmethane-4,4'-diisocyanate and polymethylene polyphenyl polyisocyanates, are a particularly suitable binder.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: August 6, 1985
    Assignee: The Celotex Corporation
    Inventors: William E. Betzner, Richard K. Holtman
  • Patent number: 4514255
    Abstract: The problem of resin precure encountered in fiberboard, especially medium-density fiberboard, produced by blow-line blending is overcome by adding an alkaline material to the wood fibers prior to blow-line blending in order to raise the pH of the wood preferably into the range of 4 to 7, and optimally around 5.5. Only the fiber used to form the surface layers of the mat which is hot pressed to form the fiberboard need have the alkaline material added thereto; alternatively, especially in the core layer of the mat, the action of the alkaline material may be reversed by adding an acid catalyst. The fiberboards formed have a glossy, hard surface which reduces the need for sanding.
    Type: Grant
    Filed: August 19, 1983
    Date of Patent: April 30, 1985
    Assignee: Borden, Inc.
    Inventors: John W. Maxwell, Brian Vyse
  • Patent number: 4347100
    Abstract: An additive comprising an anionic organic surface active agent is incorporated into mechanical or thermomechanical pulp at an elevated temperature and pressure. The additive causes dispersion of lignin and retards redeposition of lignin so that the bursting strength of the paper formed from the pulp is improved. The preferred additives are higher molecular weight anionic organic polyelectrolytes or polymers, particularly polymeric sulfonates. Further improvement in bursting strength is achieved by the wet end addition of a cationic organic polyelectrolyte or polymer, with or without starch. Lower molecular weight anionic organic detergents can also be used but should be rinsed from the pulp before forming paper.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: August 31, 1982
    Assignee: The Chemithon Corporation
    Inventor: Albert Brucato