Cellulose Or Derivative Patents (Class 536/56)
  • Patent number: 8835142
    Abstract: Biomass (e.g., plant biomass, animal biomass, microbial, and municipal waste biomass) is processed to produce useful products, such as food products and amino acids.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: September 16, 2014
    Assignee: Xyleco, Inc.
    Inventor: Marshall Medoff
  • Publication number: 20140255688
    Abstract: The present invention concerns a method of preparing a film of nanofibrillated cellulose (NFC) on at least one surface of a support material, wherein the film is applied and spread directly onto a surface of the plastic support material in the form of a suspension of nanofibrillated cellulose, whereby the nanofibrillated cellulose forms a film. Further, the invention concerns a structure containing or consisting of a film of nanofibrillated cellulose prepared using said method.
    Type: Application
    Filed: October 23, 2012
    Publication date: September 11, 2014
    Applicants: Telnologian tutkimuskeskus VTT, Aalto University Foundation
    Inventors: Tekla Salminen, Ulla Hippi, Arto Salminen
  • Patent number: 8829181
    Abstract: The present invention relates to a process for producing a cationic hydroxypropyl cellulose including the step of reacting a low-crystalline powdery cellulose with a cationizing agent represented by the following general formula (1) and/or a cationizing agent represented by the following general formula (2), and propylene oxide in the presence of water in an amount of from 10 to 60% by mass on the basis of the low-crystalline powdery cellulose, and a catalyst: wherein R1 to R3 are each independently a linear or branched hydrocarbon group having 1 to 4 carbon atoms; and X and Z are each a halogen atom and may be the same or different from each other.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: September 9, 2014
    Assignee: KAO Corporation
    Inventors: Masanori Takai, Masafumi Miyamoto, Kohei Nakanishi, Toru Nishioka
  • Patent number: 8828905
    Abstract: The present invention relates to a porous base matrix having formyl group, which base matrix has a structure represented by the formula (2) as a spacer, which structure is obtained by cleaving a group represented by the formula (1): wherein, R1 represents a group forming a five-membered ring or a six-membered ring with —CH(OH)—CH(OH)—; a method for producing the porous base matrix; and an adsorbent obtained by binding a ligand on the porous base matrix. By the present invention, a high-intensity base matrix for an adsorbent and an adsorbent are provided. The amount of a ligand leaked from the adsorbend is small.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 9, 2014
    Assignee: Kaneka Corporation
    Inventors: Yoshikazu Kawai, Naomi Kawahara
  • Publication number: 20140249305
    Abstract: The present invention provide a hydrophilized cellulose fiber producing method, comprising oxidizing cellulose fibers in a reaction solution containing a N-oxyl compound, an oxidizing agent, and a co-catalyst and oxidizing other cellulose fibers using the reaction solution again. The present invention relate to a hydrophilized cellulose fiber producing method, comprising the steps of: (1a) oxidizing cellulose fibers in a reaction solution containing a N-oxyl compound, an oxidizing agent, and sodium sulfate to provide oxidized cellulose fibers; and (1b) separating the obtained oxidized cellulose fibers from the reaction solution, and then adding other additional cellulose fibers and oxidizing agent to the reaction solution to oxidize the cellulose fibers again to provide oxidized cellulose fibers.
    Type: Application
    Filed: September 11, 2012
    Publication date: September 4, 2014
    Applicant: GUNZE LIMITED
    Inventors: Chiaki Tanaka, Yoshinari Yui, Akira Isogai
  • Publication number: 20140248537
    Abstract: There is provided a novel slurry composition for forming a lithium secondary battery electrode which can improve homogeneity of an electrode active material and a conductive assistant even without using an organic solvent and can improve the binding of an electrode active material and a conductive assistant with an electrode collector, and a lithium secondary battery with improved charge/discharge cycle characteristics and battery capacity. A slurry composition for forming a lithium secondary battery electrode, characterized by comprising an electrode active material (A), a conductive assistant (B), and a pulverized cellulose fiber (C) as an aqueous binder, and a lithium secondary battery electrode and a lithium secondary battery which are obtained using the composition, and an aqueous binder used for the composition.
    Type: Application
    Filed: September 20, 2012
    Publication date: September 4, 2014
    Inventors: Hisato Hayashi, Masaaki Ozawa, Osamu Uesugi, Yoshihiro Kadoma
  • Patent number: 8821689
    Abstract: A composition comprising starch, a biogum and water subjected to heat, shearing and optionally depolymerization is provided which is useful as a stable high solids dispersion useful in various applications including as wet-end additives for paper making.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: September 2, 2014
    Assignee: Penford Products Co.
    Inventors: Daryl Holland, Edward P. Pauley, Joseph S. Squires
  • Publication number: 20140242798
    Abstract: A polishing composition of the present invention is used for polishing an object containing a phase-change alloy and is characterized by containing an ionic additive. Examples of the ionic additive include a cationic surfactant, an anionic surfactant, an amphoteric surfactant, and a cationic water-soluble polymer.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 28, 2014
    Applicant: FUJIMI INCORPORATION
    Inventors: Yoshihiro Izawa, Yukinobu Yoshizaki
  • Publication number: 20140242640
    Abstract: The present invention is in the fields of nanotechnology and biomimetics. In particular, the present invention relates to the use of modified ribosomes to produce biomimetic structures. These biomimetic structures, also known as directed element polymers, are not produced by traditional industrial means but instead are produced by living systems comprising modified ribosomes.
    Type: Application
    Filed: September 27, 2013
    Publication date: August 28, 2014
    Inventor: Alexander SUNGUROFF
  • Publication number: 20140228559
    Abstract: A process for dissolving modified cellulose is disclosed. The process includes contacting modified cellulose with a solvent in a mixture to form swelled modified cellulose and then contacting the mixture with a salt to dissolve the swelled modified cellulose.
    Type: Application
    Filed: June 28, 2012
    Publication date: August 14, 2014
    Inventors: Valentino J. Tramontano, Joshua Kennedy, Sajida Farooqi, Phillip D. Blaskovich, Rachit Ohri, Daniel S. Costa
  • Patent number: 8802653
    Abstract: A deodorant composition contains ?-cyclodextrin, a fixative, a preservative, and a solvent.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: August 12, 2014
    Assignee: C.B. Fleet Company, Inc.
    Inventors: Nelson Ayala, Ruby Anderson
  • Publication number: 20140221640
    Abstract: The objective of the present invention is to provide a highly safe antitumor agent having excellent antitumor activity and few side effects. The antitumor agent of the present invention is characterized in that it contains cellobiose as an active ingredient.
    Type: Application
    Filed: August 26, 2013
    Publication date: August 7, 2014
    Inventor: Masataka Iwamoto
  • Publication number: 20140212457
    Abstract: The present invention relates to compounds which are capable of exerting an inhibitory effect on the Na+ glucose cotransporter SGLT in order to hinder glucose and galactose absorption, as well as on lipase thus reducing dietary triglyceride metabolism, for use in the treatment of conditions which benefit therefrom (diabetes. Metabolic Syndrome, obesity, prevention of weight gain or aiding weight loss). These compounds comprise a non-absorbable, non-digestible polymer having a glucopyranosyl or galactopyranosyl or equivalent moiety stably and covalently linked thereto, said glucopyranosyl or galactopyranosyl moiety being able to occupy the glucose-binding pocket of a SGLT transporter.
    Type: Application
    Filed: August 12, 2013
    Publication date: July 31, 2014
    Inventor: Abdalla Rifai
  • Publication number: 20140212670
    Abstract: Provided is a process for obtaining solid cellulose, such as a cellulose solidified article or cellulose shaped article, from a cellulose solution without causing discharge of large amounts of waste liquids and environmental issues such as large energy consumption. The process produces solid cellulose through the steps of (A) dissolving cellulose in a solvent (s1) to give a cellulose solution, where the solvent (s1) includes at least one onium hydroxide in a content of from 45 to 85 percent by weight and water in a content of from 15 to 55 percent by weight, and the at least one onium hydroxide is selected from the group consisting of quaternary phosphonium hydroxides and quaternary ammonium hydroxides; (B) bringing the cellulose solution into contact with a poor solvent (s2) to precipitate cellulose as a cellulose solidified article; and (C) separating and collecting the cellulose solidified article.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 31, 2014
    Applicant: DAICEL CORPORATION
    Inventors: Shu SHIMAMOTO, Hiroyuki OHNO
  • Patent number: 8785623
    Abstract: The present invention relates to ferromagnetic materials based on nano-sized bacterial cellulose templates. More specifically, the present invention provides an agglomerate free magnetic nanoparticle cellulose material and a method of forming such magnetic nanoparticle cellulose material. Further, the magnetic nonoparticles are physically attached on the cellulose material and evenly distribute.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: July 22, 2014
    Assignee: Cellutech AB
    Inventors: Richard T. Olsson, My Ahmed Said Samir Azizi, Lars Berglund, Ulf W. Gedde
  • Patent number: 8785622
    Abstract: A substantially boron-free method for making a cationic guar comprises reacting particles of polysaccharide with a derivatizing agent to produce derivatized polysaccharide particles, washing the derivatized polysaccharide particles, and contacting, prior to or after the washing step, the particles with a glyoxal compound in order to crosslink the derivatized polysaccharide particles.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: July 22, 2014
    Assignee: Rhodia Operations
    Inventors: Caroline Mabille, Kraig Luczak
  • Publication number: 20140200335
    Abstract: A biorefining method of processing a lignocellulosic biomass to separate lignin and hemicellulose from cellulose includes the steps of (a) reacting the biomass in an aqueous slurry having a pH less than 7, comprising a transition metal catalyst, hydrogen peroxide; and (b) separating a solid cellulose fraction from dissolved lignin and hemicellulose fractions. The method may also be used to treat cellulose and produce microcrystalline or nanocrystalline cellulose. The transition metal catalyst may be a nanoparticulate catalyst including multivalent iron, iron oxides and iron hydroxides. The nanoparticulate catalyst may be formed by oxidizing a highly reduced solution of iron, such as groundwater that has not been exposed to oxygen.
    Type: Application
    Filed: June 29, 2012
    Publication date: July 17, 2014
    Applicant: NANO-GREEN BIOREFINERIES INC.
    Inventors: Andrew A. Olkowski, Bernard Laarveld
  • Publication number: 20140182582
    Abstract: In some variations, the invention provides a process for producing purified cellulose, comprising: providing a feedstock comprising lignocellulosic biomass; contacting the feedstock with sulfur dioxide, water, and a solvent for lignin, to produce intermediate solids and a liquid phase comprising hemicelluloses and lignin; mildly bleaching the intermediate solids to further delignify the intermediate solids, thereby generating cellulose-rich solids; and washing the cellulose-rich solids to generate purified cellulose with less than 2 weight percent lignin. The bleaching may employ bleaching agents including lignin-modifying enzymes. The bleaching and washing steps may be combined. It is also possible to carry out bleaching prior to, or simultaneously with, biomass fractionation in the digestor, which may help reduce downstream lignin precipitation. The purified cellulose may be utilized for making cellulose materials or cellulose derivatives, or for hydrolysis to produce glucose.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 3, 2014
    Applicant: API Intellectual Property Holdings, LLC
    Inventors: Theodora RETSINA, Vesa PYLKKANEN, Ryan O'CONNOR
  • Publication number: 20140179876
    Abstract: Embodiments of the present disclosure relate to compounds, methods of making compositions (used as a linker or a linker moiety), structures having the compound covalently bonded to the surface of the structure, methods of attaching the compound to the surface of the structure having —OH functionality (e.g., Calkyl-OH), methods of decreasing the amount of microorganisms formed on a structure, and the like.
    Type: Application
    Filed: August 2, 2012
    Publication date: June 26, 2014
    Inventor: Jason J. Locklin
  • Publication number: 20140179912
    Abstract: The present invention relates to a process for producing microcellulose comprising a) acidifying fibrous cellulosic material, b) washing the acidified cellulosic material, c) optionally dewatering the washed cellulosic material, and d) hydrolyzing the washed or washed and dewatered cellulosic material under acidic conditions at a temperature of at least 120° C. and at a consistency of at least 8% on dry weight of the cellulose.
    Type: Application
    Filed: June 6, 2011
    Publication date: June 26, 2014
    Inventors: Erkki Iikka Sakari Rasanen, Leif Robertsen, Veli-Matti Vuorenpalo, Asko Karppi, Kari Parviainen, Olli Dahl, Kari Vanhatalo
  • Publication number: 20140165881
    Abstract: The present invention relates to engineered cellulosic products which comprise plant material from plants of the genus Cymbopogon. Methods of making the engineered cellulosic products are also described. The engineered cellulosic products include particle boards and fibre boards.
    Type: Application
    Filed: August 1, 2012
    Publication date: June 19, 2014
    Inventors: Megan Ruth Pike, Anthony Douglas Pike
  • Publication number: 20140170097
    Abstract: The invention provides compositions and methods for reversible covalent binding of benefit agents to keratinous substrates through the reaction of a dicarbonyl functional group on the surface of a benefit agent with reactive amines on keratinous surfaces. The deposits formed are durable and resistant to transfer, but are readily removed by contacting the deposit with an amine-containing solution.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: AVON PRODUCTS, INC.
    Inventors: Sung Bin Shin, Sen Yang
  • Publication number: 20140171352
    Abstract: Solutions of cellulose or cellulose ethers in solvent containing triethylheptylammonium chloride, triethyloctylammonium chloride, triethylhexylammonium acetate, triethylheptylammonium acetate, triethyloctylammonium acetate, triethylnonylammonium acetate and/or triethyldecylammonium acetate are provided. The solvent may further include up to 70 wt % of at least one organic solvent, with acetone being the preferred organic solvent. The solution can be formed into a paste for removing paint from wood or metal surfaces. The cellulose (ether) solution can also serve as a reaction medium in which the cellulose and/or the cellulose ether are chemically modified. Finally, the cellulose (ether) solution can be processed into cellulosic shaped articles.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 19, 2014
    Inventors: Mike KLEINERT, Thomas HEINZE, Tim LIEBERT, Marc KOSTAG
  • Publication number: 20140158642
    Abstract: A method of producing a filter aid includes: (A) obtaining a pretreated biomass by pulverization treatment and/or thermochemical treatment of a cellulose-containing biomass; (B) treating the pretreated biomass obtained in (A) with cellulase to obtain a cellulase-treated product; and (C) obtaining a solid content of the cellulase-treated product of (B).
    Type: Application
    Filed: July 27, 2012
    Publication date: June 12, 2014
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Atsushi Minamino, Hiroyuki Kurihara, Katsushige Yamada, Junpei Kishimoto
  • Patent number: 8747612
    Abstract: The present invention relates to a process for the production of microfibrillated cellulose wherein the process comprises the steps of, providing a slurry comprising fibers, adding the slurry to an extruder, treating the slurry in the extruder so that the fibers are defibrillated and microfibrillated cellulose is formed. The invention further relates to a microfibrillated cellulose produced.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: June 10, 2014
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Ali Harlin, Kaj Backfolk, Risto Laitinen
  • Patent number: 8748409
    Abstract: Disclosed are a polysaccharide derivative obtained by substituting some of the carboxyl groups of a carboxy polysaccharide with —NH—X—CO—Y—Z; and a hydrogel thereof. Here, X is a C1-10 hydrocarbon group, Y is a polyalkylene oxide having oxygen atoms at both ends, and Z is a C1-24 hydrocarbon group or —CO—R2, with R2 being a C1-23 hydrocarbon group. The hydrogel has excellent viscoelasticity and can be injected into a predetermined location with an injection device such as a syringe, and thus can be advantageously used as a medical gel or an adhesion barrier.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: June 10, 2014
    Assignee: Teijin Limited
    Inventors: Hiroaki Kaneko, Masaya Ito
  • Publication number: 20140154756
    Abstract: Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and/or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: API Intellectual Property Holdings, LLC
    Inventors: Kimberly NELSON, Theodora RETSINA, Vesa PYLKKANEN, Ryan O'CONNOR
  • Publication number: 20140155301
    Abstract: Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and/or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: API Intellectual Property Holdings, LLC
    Inventors: Kimberly NELSON, Theodora RETSINA, Vesa PYLKKANEN, Ryan O'CONNOR
  • Publication number: 20140154721
    Abstract: The invention involves the development of a substrate and assay procedure for the scientific measurement of cellulase in admixture with other enzymes active on cellulose or 1,4-?-D-cello-oligosaccharides, or in various levels of purity of the cellulase. This substrate being characterised by the fact that it contains at least 2 glucose units linked ?-1,4-, with the reducing end glucose unit linked ?- or ?- to a compound which exhibits an optically measurable change on cleavage of the bond between it and the adjacent D-glucosyl residue and the non-reducing terminal D-glucosyl unit is covalently linked to a blocking substituent which inhibits cleavage by exo-acting enzymes of the bond between the terminal and non-reducing end, penultimate D-glucose unit.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Inventors: Barry V. McCleary, David Peter Mangan
  • Publication number: 20140154757
    Abstract: Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and/or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: API Intellectual Property Holdings, LLC
    Inventors: Kimberly NELSON, Theodora RETSINA, Vesa PYLKKANEN, Ryan O'CONNOR
  • Patent number: 8735470
    Abstract: The present invention provides a method for manufacturing a cellulose nanofiber, characterized by comprising the step of fibrillating cellulose in a polyester based resin, preferably in a polyester based resin having an ester group concentration of 6.0 mmol/g or more and a cellulose nanofiber produced by the manufacturing method concerned. In addition, the present invention provides a masterbatch composition containing the cellulose nanofibers and the polyester based resin. Furthermore, the present invention provides a resin composition containing the masterbatch composition and a diluent resin and a processed product thereof.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: May 27, 2014
    Assignee: DIC Corporation
    Inventors: Hironobu Takizawa, Tetsuya Harada, Takeshi Yamazaki, Jianye Jiang
  • Publication number: 20140142281
    Abstract: A method for producing an antimicrobial cellulose fiber. The method includes reacting a reactive compound with an antimicrobial agent to prepare a reactive antimicrobial compound, chemically fixing the reactive antimicrobial compound to a cellulose fiber through chemical bonding between the reactive compound and the cellulose fiber, and stabilizing the cellulose fiber structure. Further disclosed is an antimicrobial cellulose fiber produced by the method. The antimicrobial cellulose fiber is a human friendly material that has excellent antimicrobial activity and deodorizing performance. The antimicrobial cellulose fiber can be manufactured in the form of raw cotton, sliver, roving yarn, spun yarn, woven fabric, knitted fabric, non-woven fabric, etc. The antimicrobial cellulose fiber may be blended with other fibers, such as natural fibers and synthetic fibers.
    Type: Application
    Filed: April 29, 2013
    Publication date: May 22, 2014
    Applicant: G.CLO Inc.
    Inventor: G.CLO Inc.
  • Patent number: 8729050
    Abstract: A method for treating or preventing disorders, diseases, and symptom of reflux, that is laryngopharyngeal reflux (LPR), in the laryngopharynx caused by pepsin comprises orally administering to the laryngopharynx of a patient an effective amount of cellulose powder. A method for treating or preventing damage to the lining membranes of at least some of the aerodigestive tract, the damage caused by pepsin, comprises coating at least some of the lining membranes with an effective amount of a cellulose powder. Upon inhalation of the powder, the powder coats the lining membranes. Upon coating the lining membranes, the powder becomes a gel. The gel prevents the pepsin from binding with the lining membranes, thereby preventing damage caused by pepsin in laryngopharyngeal reflux or in extra-esophageal reflux.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: May 20, 2014
    Assignee: Euphora Ltd.
    Inventors: Jamie Koufman, Michael James, Peter Josling
  • Publication number: 20140130710
    Abstract: A method for producing a superhydrophobic surface, which includes cellulosic material. The cellulosic material includes nanocellulose particles and the method includes adding the nanocellulose particles to a surface and hydrophobizing the nanocellulose particles with a modifier before, during and/or after the addition of the particles. The invention further relates to a hydrophobic coating.
    Type: Application
    Filed: May 4, 2012
    Publication date: May 15, 2014
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Henrikki Mertaniemi, Olli Ikkala, Jan-Erik Teirfolk, Antti Laukkanen, Robin Ras
  • Publication number: 20140121333
    Abstract: An embodiment of the present disclosure can include a compound, a structure bonded to the compound, and the like. In an embodiment, the compound can be a linker between an agent and a structure, where the agent can be a dye or a pigment and the structure can be a fiber, hair, or another structure. In an embodiment, the compound can be a linker between an agent and a structure, where the agent can be a fluorinated compound and the structure can be a counter top, metal, or the like.
    Type: Application
    Filed: July 12, 2012
    Publication date: May 1, 2014
    Inventor: Jason J. Locklin
  • Patent number: 8710213
    Abstract: Methods for integrating the production of cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) from cellulose are provided. The methods use milder acid hydrolysis conditions than those for maximal CNC production to achieve reduced degradation of cellulose into soluble sugars. Also provided are negatively charged cellulosic solid residues (CSRs) in the form of cellulose fibers (CF) and/or cellulose microfibrils (CMF) during the acid hydrolysis, as well as CNFs fabricated from the CSRs.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: April 29, 2014
    Assignee: The United States of America as Represented by the Secretary of Agriculture
    Inventors: JunYong Zhu, Richard S. Reiner
  • Patent number: 8709450
    Abstract: The invention is a cellulose derivative wherein some of the carboxyl groups of the cellulose derivative carboxymethylcellulose are replaced with —CO—NH—X—CO—Y—Z, and a hydrogel of the same. In the formula, X is a C1-10 divalent hydrocarbon group, Y is a divalent group derived from polyalkylene oxide having oxygen atoms at both ends, and Z is a C1-24 hydrocarbon group or —CO—R4, where R4 is a C1-23 hydrocarbon group. The hydrogel has excellent viscoelasticity and can be injected into prescribed sites with injecting devices such as syringes, and it can thus be utilized as a medical gel or adhesion barrier.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: April 29, 2014
    Assignee: Teijin Limited
    Inventors: Hiroaki Kaneko, Nobuyuki Endo, Masaya Ito
  • Publication number: 20140114059
    Abstract: A method for manufacturing cellulosic material includes: introducing cellulose fibers as cellulosic raw material to a system, conveying the cellulose fibers to an extruder comprising a mixing part and/or a refining part, dosing at least one chemical to the system before the extruder and/or in the extruder and performing a reaction between the cellulose fibers and the chemical(s) at least partly in the extruder, wherein the reaction is performed at a consistency of at least 40%, and/or dosing at least one chemical to the system before the extruder and/or in the extruder and mixing the cellulose fibers and the chemical(s) in the mixing part of the extruder, wherein the mixing step is performed at a consistency of at least 40%, and/or refining the introduced cellulose fibers at least partly in the refining part of the extruder, wherein the refining step is performed at a consistency of at least 5%.
    Type: Application
    Filed: June 13, 2012
    Publication date: April 24, 2014
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Juha Tamper, Markus Nuopponen, Harri Kosonen
  • Patent number: 8691974
    Abstract: A novel BC fermentation technique for controlling 3D shape, thickness and architecture of the entangled cellulose nano-fibril network is presented. The resultant nano-cellulose based structures are useful as biomedical implants and devices, are useful for tissue engineering and regenerative medicine, and for health care products. More particularly, embodiments of the present invention relate to systems and methods for the production and control of 3-D architecture and morphology of nano-cellulose biomaterials produced by bacteria using any biofabrication process, including the novel 3-D Bioprinting processes disclosed. Representative processes according to the invention involve control of the rate of production of biomaterial by bacteria achieved by meticulous control of the addition of fermentation media using a microfluidic system. In exemplary embodiments, the bacteria gradually grew up along the printed alginate structure that had been placed into the culture, incorporating it.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: April 8, 2014
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Paul Gatenholm, Henrik Backdahl, Theodore Jon Tzavaras, Rafael V. Davalos, Michael B. Sano
  • Publication number: 20140088252
    Abstract: A method for preparing a specific product from a polysaccharide in which at least one hydroxyl of a saccharide unit is substituted with an ether or ester moiety. The ether or ester moiety is provided with ethenyl and/or epoxy functionality for preparing an activatable polysaccharide polymer and the activatable polysaccharide polymer with ethenyl and/or epoxy functionality is optionally reacted with an additional coupling reagent, having at least two coupling functionality for preparing polysaccharide polymer with additional activatable crosslinker.
    Type: Application
    Filed: March 22, 2012
    Publication date: March 27, 2014
    Applicant: Teknologian Tutkimuskeskus Vtt
    Inventors: Ali Harlin, Harri Setälä, Helinä Talja
  • Publication number: 20140088301
    Abstract: The present invention relates to a process for dewatering a slurry comprising microfibrillated cellulose wherein the process comprises the following steps of, providing a slurry comprising microfibrillated cellulose and liquid, subjecting the slurry to an electric field inducing the liquid of the slurry to flow and separating the liquid from the microfibrillated cellulose. The invention also relates to microfibrillated cellulose dewatered according to the process.
    Type: Application
    Filed: May 11, 2012
    Publication date: March 27, 2014
    Applicant: STORA ENSO OYJ
    Inventors: Isto Heiskanen, Kaj Backfolk, Ari Kotilainen, Valentas Gaidelis, Jonas Sidaravicius
  • Patent number: 8679292
    Abstract: A method is conceived for producing hydrophobic lignocellulosics based on the graft copolymerisation of vinyl-type monomers onto the lignocellulosic backbone initiated by a redox couple initiator in aqueous medium. The green modification process can be carried out on any lignocellulosic material, for example, chemical, chemi-thermomechanical or thermo-mechanical pulps, bleached or unbleached. The technology disclosed in this invention yields individual lignocellulosic entities, for instance, hydrophobic pulp fibers, that can be used in combination with other fibers or polymers to produce nonwoven fibrous materials or composites. A significant aspect of the invention is that the modified lignocellulosic material possesses an efficient hydrophobic barrier and minimum interfacial energy to generate optimum adhesion when introduced to polymer resins.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: March 25, 2014
    Assignee: Fpinnovations
    Inventors: Wadood Y. Hamad, Ali Hayek
  • Publication number: 20140081013
    Abstract: Provided is a method for solubilizing cellulose in which cellulose can be solubilized in a short period of time with a low amount of excess decomposition and without the use of a catalyst or other chemicals. A starting material containing cellulose is pulverized to reduce the crystallization thereof, adjusted for moisture content, reacted with water in the absence of a catalyst, and converted into a water-soluble component. At this point, the reaction is performed at a temperature of 100° C. or more and less than 300° C., and a total pressure of 0.05 MPa or more and less than 10 MPa. Water is added and extracted from the water soluble component, and solid-liquid separation is performed to separate the solids and the aqueous solution.
    Type: Application
    Filed: April 2, 2012
    Publication date: March 20, 2014
    Applicant: KABUSHIKI KAISHA EQUOS RESEARCH
    Inventors: Koichi Shiraishi, Tohru Joboji, Kento Taneda
  • Publication number: 20140079931
    Abstract: The present invention relates to cellulose-based materials comprising nanofibrillated cellulose (NFC) from native cellulose. exhibiting highly superior properties as compared to other cellulose-based materials, a method for preparing such cellulose-based material, and uses thereof are also disclosed.
    Type: Application
    Filed: March 26, 2012
    Publication date: March 20, 2014
    Applicant: CELLUTECH AB
    Inventors: Lars Berglund, Houssine Sehaqui, Qi Zhou
  • Patent number: 8674013
    Abstract: A method of preparing a reinforced fluoropolymer composite is presented, which includes reacting a surface of a nanocrystalline cellulose with a fluorinated electrophile to form a fluoro-functionalized nanocrystalline in which the outer circumference of the nanocrystalline cellulose has been functionalized with fluorinated substrates, and contacting the fluoro-functionalized nanocrystalline cellulose with a fluoropolymer to form a fluoropolymer composite. Also presented is a method of preparing fluoro-functionalized nanocrystalline cellulose, including reacting a surface of a nanocrystalline cellulose with a fluorinated electrophile forming fluoro-functionalized nanocrystalline cellulose in which the outer circumference of the nanocrystalline cellulose has been functionalized with fluorinated substrates, precipitating the fluoro-functionalized nanocrystalline cellulose and isolating and purifying the fluoro-functionalized nanocrystalline cellulose.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: March 18, 2014
    Assignee: Xerox Corporation
    Inventors: Brynn Mary Dooley, Yu Qi, Carolyn Moorlag, Qi Zhang
  • Publication number: 20140073714
    Abstract: A therapeutic device to release a therapeutic agent comprises a porous structure coupled to a container comprising a reservoir. The reservoir comprises a volume sized to release therapeutic amounts of the therapeutic agent for an extended time when coupled to the porous structure and implanted in the patient. The porous structure may comprise a first side coupled to the reservoir and a second side to couple to the patient to release the therapeutic agent. A plurality of interconnecting channels can extend from the first side to the second side so as to connect a first a plurality of openings on the first side with a second plurality of openings on the second side.
    Type: Application
    Filed: November 14, 2013
    Publication date: March 13, 2014
    Applicant: FORSIGHT VISION4, INC.
    Inventors: Cary J. Reich, Michael Barrett, Randolph E. Campbell, Kathleen C. Farinas
  • Publication number: 20140072526
    Abstract: The present invention relates to an adsorbate of a pharmaceutically compatible rasagiline salt comprising at least one pharmaceutically compatible adjuvant, wherein the at least one pharmaceutically compatible adjuvant is a water-soluble, organic solvent and the rasagiline salt is present in the adsorbate as an amorphous substance.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 13, 2014
    Applicant: RATIOPHARM GMBH
    Inventors: Alexander Lehmann, Frank Muskulus, Julia Schulze-Nahrup
  • Publication number: 20140073722
    Abstract: Cellulose nanofibers have an average degree of polymerization of 600 or more to 30000 or less, an aspect ratio of 20 or more to 10000 or less, an average diameter of 1 nm or more to 800 nm or less, and an I?-type crystal peak in an X-ray diffraction pattern, in which a hydroxyl group is chemically modified by a modifying group.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: Olympus Corporation
    Inventors: Kohei Shiramizu, Lianzhen Lin
  • Publication number: 20140073773
    Abstract: The present invention relates to a method for producing an alkali cellulose with suppressed decrease in the degree of polymerization as well as with small use amount of a basic compound, and to a method for producing a cellulose ether by using the alkali cellulose thus obtained. Provided by the present invention are: (A) a method for producing an alkali cellulose, comprising Step 1 wherein a cellulose-containing raw material is pulverized in the presence of 0.6 to 1.
    Type: Application
    Filed: April 27, 2012
    Publication date: March 13, 2014
    Applicant: KAO CORPORATION
    Inventors: Eisuke Miyoshi, Yutaka Yoshida, Ryo Miyasato, Kenichi Shiba, Rui Takahashi, Yoichiro Imori
  • Publication number: 20140073774
    Abstract: The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: —providing a slurry comprising cellulose and liquid, —subjecting the slurry to an electric field inducing the liquid of the slurry to flow, —separating the liquid from the cellulose thus obtaining a liquid depleted slurry, —adding a washing liquid, such as an organic solvent, to the liquid depleted slurry—subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and—separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process.
    Type: Application
    Filed: May 11, 2012
    Publication date: March 13, 2014
    Applicant: STORA ENSO OYJ
    Inventors: Isto Heiskanen, Kaj Backfolk, Ari Kotilainen, Valentas Gaidelis, Jonas Sidaravicius