Cellulosic Patents (Class 428/393)
  • Patent number: 11767423
    Abstract: The invention provides an antimicrobial fiber which exhibits excellent antimicrobial properties even without the addition of antimicrobial agents and can remain antimicrobial even after repeated washing. The antimicrobial fiber comprises a fiber having on a surface thereof a polyacetal copolymer (X) containing oxyalkylene groups, the molar amount of oxyalkylene groups in the polyacetal copolymer (X) being 0.2 to 5 mol % relative to the total of the molar amount of oxymethylene groups and the molar amount of oxyalkylene groups.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: September 26, 2023
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Akira Ito
  • Patent number: 11597818
    Abstract: The present disclosure relates to a molded article provided with a resin part formed with a thermoplastic resin composition. The thermoplastic resin composition containing thermoplastic resins and cellulose, wherein at least one of the thermoplastic resins is a resin having in a polymer molecule at least one group selected from a group containing a partial structure of an acid anhydride and a group containing an acylated cellulose structure.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 7, 2023
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Jaekyung Kim, Kenichi Suyama, Yasuo Nakajima, Eiji Kozawa
  • Patent number: 11530316
    Abstract: The present disclosure relates to a molded article provided with a resin part formed with a thermoplastic resin composition. The thermoplastic resin composition containing thermoplastic resins and cellulose, wherein at least one of the thermoplastic resins is a resin having in a polymer molecule at least one group selected from a group containing a partial structure of an acid anhydride and a group containing an acylated cellulose structure.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: December 20, 2022
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Jaekyung Kim, Kenichi Suyama, Yasuo Nakajima, Eiji Kozawa
  • Patent number: 11499035
    Abstract: The present disclosure relates to a molded article provided with a resin part formed with a thermoplastic resin composition. The thermoplastic resin composition containing thermoplastic resins and cellulose, wherein at least one of the thermoplastic resins is a resin having in a polymer molecule at least one group selected from a group containing a partial structure of an acid anhydride and a group containing an acylated cellulose structure.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 15, 2022
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Jaekyung Kim, Kenichi Suyama, Yasuo Nakajima, Eiji Kozawa
  • Patent number: 11142631
    Abstract: Fiber-containing composites are described that contain woven or non-woven fibers, and a cured binder formed from a binder composition that includes (1) a reducing sugar and (2) a crosslinking agent that includes a reaction product of a urea compound and a polycarbonyl compound. Exemplary reaction products for the crosslinking agent may include the reaction product of urea and an ?,?-bicarbonyl compound or an ?,?-bicarbonyl compound. Exemplary fiber-containing composites may include fiberglass insulation.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: October 12, 2021
    Assignee: Johns Manville
    Inventor: Kiarash Alavi
  • Patent number: 10240259
    Abstract: A method of manufacturing a cellulose-based shaped article. The method comprises subjecting a solution of lignocellulosic material, dissolved in a distillable ionic liquid, to a spinning method, wherein the ionic liquid is a diazabicyclononene (DBN)-based ionic liquid. DBN-based ionic liquids have good dissolution power, high thermal and chemical stability, lack runaway reactions and exhibit low energy consumption, due to low spinning temperatures. The shaped cellulose articles can be used as textile fibers, high-end non-woven fibers, technical fibers, films for packaging, and barriers films in batteries, as membranes and as carbon-fiber precursors.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: March 26, 2019
    Assignees: Aalto University Foundation sr, Helsingin Yliopisto
    Inventors: Anne Michud, Alistair W. T. King, Arno Parviainen, Herbert Sixta, Lauri Hauru, Michael Hummel, Iikka Kilpeläinen
  • Patent number: 10214858
    Abstract: The present invention relates to specialty pulp products produced using bifunctional reagents composed of polymeric chain and end caps. The polymeric chain is preferably a polyalkylene glycol based polymer and the end caps are preferably a cationic quaternary ammonium. The bifunctional reagents are especially useful in making specialty fluff with dual functional properties—easy defiberization and antimicrobial properties. The specialty fluff of the present invention prevents odor by inhibiting bacteria growth and production of organic matters, especially when used in an absorbent article intended for body waste management such as baby diapers and adult incontinence device.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: February 26, 2019
    Assignee: RAYONIER PERFORMANCE FIBERS, LLC
    Inventors: Othman A. Hamed, Romuald S. Krzywanski
  • Patent number: 9994746
    Abstract: A composition for use as a swellable seal includes a base polymer, a super absorbent polymer, and a predetermined amount of cotton flock.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: June 12, 2018
    Assignee: RL Hudson & Company
    Inventor: Robert Denton
  • Patent number: 9637577
    Abstract: A mixed PTFE powder according to the present invention is prepared by the steps of preparing a PTFE mixed dispersion by dispersing MoS2, Al2O3, and Al(OH)3 in a PTFE emulsion; dehydrating the PTFE mixed dispersion by adding Na2CO3 into the PTFE mixed dispersion to form a cake type compound; preparing an ingot by drying the cake type compound for about 16 to 24 hours at the temperature of about 120 to 190° C.; and pulverizing the ingot in a 30-35 mesh vibrating net. An HDME PTFE yarn according to the present invention is prepared by the steps of preparing the mixed PTFE powder; adding kerosene of about 18 to 25 wt. % as solvent to the mixed PTFE powder and maintaining the resultant for about 40 to 50 hours at the temperature of about 30 to 50° C.; extruding the resulting mixed PTFE into the form of rod at about 70 to 90° C.; calendering the rod into the form of sheet at about 100 to 150° C., the width of the sheet being about 100 to 300 mm and the thickness about 0.3 to 0.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: May 2, 2017
    Assignee: Ji Joong Hae Ind. Co., Ltd.
    Inventor: Kwang Huh
  • Patent number: 9562305
    Abstract: A yarn comprising gel forming filaments or fibers particularly one used to make a woven or knitted wound dressing or other gelling fabric structure. The invention provides a yarn comprising a blend of from 30% to 100% by weight of gel-forming fibers and 0% to 70% by weight of textile fibers. Process for making the yarns are also described including those using rotor spinning.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 7, 2017
    Assignee: Convatec Technologies Inc.
    Inventors: Wayne Bonnefin, Sarah Wroe, Amelia Prentice
  • Patent number: 9243073
    Abstract: Disclosed is a high-strength conductive film having excellent conductivity which can be applied in electronic devices, and which further reduces unevenness in conduction. The conductive film comprises modified fine cellulose having at least a carboxyl group and one type or two or more types of conductive substance. Further, the conductive film is formed by a process involving a step for oxidizing cellulose to prepare modified cellulose, a step for making finer the modified cellulose by dispersing the same in a dispersion medium to prepare modified fine cellulose, a step for mixing the modified fine cellulose and the conductive substance to prepare a dispersion liquid, and a step for drying the dispersion liquid to form a conductive film.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: January 26, 2016
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Mitsuharu Kimura, Yumiko Oomori
  • Patent number: 9145526
    Abstract: A process for the preparation of a ring-hydrogenated alkyl furfuryl ether of the general formula (I) or a mixture of such ethers: (I) R?-TF—CH2-O—R where TF represents a 2,5-disubstituted tetrahydrofuran ring, where each R independently represents a hydrocarbyl group having from 1 to 20 carbon atoms and where each R? independently represents a methyl group, a hydroxymethyl group, the product of an aldol condensation reaction or an alkoxymethyl group of the general formula (II): (II) —CH2-O—R? where each R? independently represents a hydrocarbyl group having from 1 to 20 carbon atoms, the process including the step of reacting a 5-(alkoxymethyl)furfural of the general formula (III) or a 2,5-bis(dialkoxymethyl)furan of the general formula (IV) under hydrogenation conditions: (III) R?—O—CH2-F—CH?O (IV) R?—O—CH2-F—CH2-O—R? to form said ring-hydrogenated alkyl furfuryl ether of the general formula (I) or a mixture of said ethers wherein F represents a 2,5-disubstituted furan ring, and R?, and R? have the definitio
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: September 29, 2015
    Assignee: FURANIX TECHNOLOGIES B.V.
    Inventors: Gerardus Johannes Maria Gruter, Edserd de Jong
  • Publication number: 20150125695
    Abstract: A composition having at least one first component containing a perfluorinated aliphatic structure in which no more than six fluorine bearing carbons are connected in any single straight chain segment, in addition a group providing binding functionality to a surface to be treated or containing at least one polymerisable double bond or containing at least one cross-linkable group, and in addition a divalent radical containing at least one group capable of forming polar interactions or hydrogen bonds, and at least one second component containing a perfluorinated aliphatic structure in which no more than six fluorine bearing carbons are connected in any single straight chain segment and a moiety containing at least one group providing binding functionality to a surface to be treated or containing at least one polymerisable double bond or containing at least one cross-linkable group.
    Type: Application
    Filed: November 3, 2014
    Publication date: May 7, 2015
    Inventors: ERIC HUEBSCH, Noel Stephen Brabbs
  • Patent number: 8888464
    Abstract: Method for fabricating a reinforcing coating for a part made of composite material. Pre-impregnated reinforcing fibers are used in the form of slivers and said slivers are laid on the part in two layers of longitudinal slivers by being placed thereon. This fabrication makes provision for using an angular orientation for the slivers of each layer respectively of 0° and of some other angle relative to said determined direction of the solid body for covering using an interlaced pattern type that gives layer crossing lines parallel to a longitudinal axis of the solid body for covering, which pattern type is selected to form interlacing patterns that limit the number of layer crossing lines along the longitudinal axis of the solid body for covering to a single line.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: November 18, 2014
    Assignee: Airbus Helicopters
    Inventors: Jacques Gaffiero, André Amari, Bénédicte Rinaldi, Didier Trallero
  • Publication number: 20140272409
    Abstract: A fiber structure for forming a rope structure has a base matrix of base fiber material and at least one lubricity portion of lubricity material. The lubricity material determines a lubricity of at least a portion of a surface of the fiber structure.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Samson Rope Technologies
    Inventor: Samson Rope Technologies
  • Patent number: 8741430
    Abstract: Amino-formaldehyde resins may be prepared using formulations including formaldehyde, glycerin and at least one amino compound selected from the group consisting of urea, melamine, and mixtures thereof; under reaction conditions sufficient to prepare a resin, wherein; the amino-formaldehyde resin is prepared in a substantial absence of a sulfonating agent, ethylene glycol, and polyalkylene glycols. If the amino compound is urea, then the urea is present in a molar ratio of formaldehyde to urea ranging from 0.70 to 1.30; if the amino compound is melamine, then the melamine is present in a molar ratio of formaldehyde to melamine ranging from 1.3 to 2.2; and if the amino compound is a mixture of urea and melamine, then the mixture of urea and melamine is present in a molar ratio of formaldehyde to urea and melamine ranging from 0.35 to 1.3.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: June 3, 2014
    Assignee: Momentive Specialty Chemicals Inc.
    Inventors: Byung Young No, David M. Harmon, Todd R. Miller
  • Patent number: 8722773
    Abstract: A composition comprising 65 to 90 weight percent kraft chemical wood pulp fibers and a thermoplastic polymer and a method of making the composition.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: May 13, 2014
    Assignee: Weyerhaeuser NR Company
    Inventors: Robert T. Hamilton, Harshadkumar M. Shah, Jeffrey Jacob Cernohous, Neil R. Granlund, David E. Fish
  • Patent number: 8715826
    Abstract: Polysaccharides and/or hydroxyl polymers, more particularly, structures, especially fibers, comprising a polysaccharide and/or hydroxyl polymer and an association agent, fibrous structures comprising such structures and processes for making such structures and/or fibrous structures are provided.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: May 6, 2014
    Assignee: The Procter & Gamble Company
    Inventors: Larry Neil Mackey, Gregory Charles Gordon, Stephen Wayne Heinzman
  • Patent number: 8409705
    Abstract: Fibers having a plurality of colored regions printed on front and rear sides of said fiber are disclosed, wherein the colors are visible only under ultra-violet light. The regions may be in the form of stripes or may be arranged in a pseudo-random pattern. The regions may be differently colored. Such fibers can be incorporated into paper products as a form of counterfeit protection.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: April 2, 2013
    Assignee: D.W. Spinks (Embossing) Ltd.
    Inventor: Gary D Spinks
  • Patent number: 8361278
    Abstract: A base sheet for food wrap products. The base sheet can include a pulp-derived papermaking fiber and a fibrillated regenerated cellulose microfiber having a CSF value of less than about 175 mL.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: January 29, 2013
    Assignee: Dixie Consumer Products LLC
    Inventors: Gregory M. Fike, Joseph R. Pounder, Daniel W. Sumnicht
  • Publication number: 20130014774
    Abstract: A filter material of a filter element configured for application in a smoking article may include a fibrous substrate material finished with a fiber finish composition. The fiber finish composition may be formulated to selectively interact with at least one target component of mainstream smoke drawn through the filter element during use of the smoking article to selectively filter the target component from the smoke. The filter element may include multiple filter segments. Each filter segment may include a filter material having a finish composition formulated to selectively interact with a different target component. The various filter segments may be combined and/or arranged to selectively filter the mainstream smoke to achieve desired characteristics. Each filter segment may be formed from the same fibrous substrate material.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 17, 2013
    Inventors: Andries D. Sebastian, Stephen Benson Sears, Anthony Richard Gerardi
  • Patent number: 8343625
    Abstract: Polysaccharides and/or hydroxyl polymers, more particularly, structures, especially fibers, comprising a polysaccharide and/or hydroxyl polymer and an association agent, fibrous structures comprising such structures and processes for making such structures and/or fibrous structures are provided.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: January 1, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Larry Neil Mackey, Gregory Charles Gordon, Stephen Wayne Heinzman
  • Patent number: 8299174
    Abstract: A curable binder composition consisting essentially of one or more ammonium salt of an inorganic acid and at least one carbohydrate, and the use thereof as a thermosetting binder. Also described are composite materials comprising the curable binder composition, and methods of application.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: October 30, 2012
    Assignee: Rohm and Haas Company
    Inventors: Jean Marie Brady, Michael DeWayne Kelly, Barry Weinstein
  • Patent number: 8283392
    Abstract: The invention pertains to a particle comprising a composition containing a matrix and a peroxide or azo radical initiator, wherein the particle is a fiber or fibrid selected from aramid, polyester, polyimide, cellulose, and glass. The invention further relates to particle-elastomers comprising said composition, and skim products, tires, tire treads, and belts comprising these particle-elastomers.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: October 9, 2012
    Assignee: Teijin Aramid B.V.
    Inventors: Rabindra Nath Datta, Sumana Datta, legal representative, Sebastianus Christoffel Josephus Pierik, Johan P. Baaij
  • Patent number: 8273453
    Abstract: Polysaccharides and/or hydroxyl polymers, more particularly, structures, especially fibers, comprising a polysaccharide and/or hydroxyl polymer and an association agent, fibrous structures comprising such structures and processes for making such structures and/or fibrous structures are provided.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: September 25, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Larry Neil Mackey, Gregory Charles Gordon, Stephen Wayne Heinzman
  • Patent number: 8241747
    Abstract: Thermoplastic polyolefin polymer composition, polymer chip, fiber, woven or nonwoven fabric, film, closures, laminates can comprise a polymer, a polymer and a nonvolatile polymer-compatible carboxylic acid. Thermoplastic polyolefin polymer composition can also comprise a polymer, a cyclodextrin-modified polymer and a nonvolatile polymer-compatible carboxylic acid. The carboxylic acid moiety of the polymer composition can react with basic materials in the polymer environment and reduce release of the basic material. The cyclodextrin can act to absorb or trap other contaminants or odors in the environment.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: August 14, 2012
    Assignee: Cellresin Technologies, LLC
    Inventors: Willard E. Wood, Neil J. Beaverson
  • Patent number: 8187421
    Abstract: An absorbent paper sheet includes cellulosic papermaking fiber and up to about 75 percent by weight fibrillated regenerated cellulose microfiber which may be regenerated from a cellulosic dope utilizing a tertiary amine N-oxide solvent or selected ionic liquids.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: May 29, 2012
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 8187422
    Abstract: A high efficiency disposable cellulosic wiper includes (a) pulp-derived papermaking fiber; (b) up to 75% by weight regenerated cellulosic microfiber having a characteristic CSF value of less than 175 ml, the microfiber being selected and present in amounts such that the wiper exhibits a Laplace pore volume fraction at pore sizes less than 15 microns of at least 1.5 times that of a like wiper prepared without regenerated cellulose microfiber. The wipers of the invention exhibit remarkable residue removal efficiency.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: May 29, 2012
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 8173257
    Abstract: A viscose fiber comprises a fiber body including a regenerated cellulosic material and a plurality of microcapsules dispersed in the regenerated cellulosic material. The regenerated cellulosic material is derived from an organic plant material and the plurality of microcapsules containing a phase change material has a transition temperature in the range of 0° C. to 100° C., the phase change material providing thermal regulation based on at least one of absorption and release of latent heat at the transition temperature.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: May 8, 2012
    Assignee: Outlast Technologies, Inc.
    Inventors: Mark Hartmann, James Brice Worley, Matthew North
  • Patent number: 8163215
    Abstract: A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: April 24, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Veit Stegmann, Klemens Massonne, Matthias Maase, Eric Uerdingen, Michael Lutz, Frank Hermanutz, Frank Gaehr
  • Patent number: 8158253
    Abstract: Fibers (2, 14) having a plurality of colored regions printed on front and rear sides of said fiber are disclosed, wherein the colors are visible only under ultra-violet light. The regions may be in the form of stripes (4, 6, 8, 10 and 12) or may be arranged is a pseudo-random pattern (16, 18, 20, 22, 24). The regions may be differently colored. Such fibers can be incorporated into paper products as a form of counterfeit protection.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: April 17, 2012
    Assignee: D W Spinks (Embossing) Ltd.
    Inventor: Gary D. Spinks
  • Patent number: 8133583
    Abstract: The present invention provides a fire retardant antiflux fiber, the fiber is composed of the following components: cellulose 60˜80% by mass, silicon fire retardant (calculated as silicon dioxide) 15˜36% by mass, tourmaline 0.1˜5%. The present invention also provides a process of producing fire retardant antiflux fiber, in the adding step, the silicon fire retardant is added into the cellulose xanthate in the xanthation step or the viscose which was prepared after the xanthation step, the level of adding the silicon fire retardant is 19˜30%, calculated as silicon dioxide. The fire retardant antiflux fiber of the present invention has high fire retardant antiflux effect, high fiber strength and excellent negative ion generating efficacy. At the same time, the viscose also maintains excellent filtering performance in the procedure using above production process, reducing the production standstill caused by the viscose blocking up filter screen, improving production efficiency.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: March 13, 2012
    Assignee: Shandong Helon Co., Ltd.
    Inventors: Sufeng Tian, Lejun Wang
  • Patent number: 8029896
    Abstract: Provided is a material for gas barrier containing cellulose fibers having an average fiber diameter of not more than 200 nm, wherein the content of the carboxyl group in a cellulose composing the cellulose fiber is 0.1 to 2 mmol/g. A molded composite having gas barrier properties such as high oxygen barrier properties can be produced by applying the material for gas barrier on a substrate and drying.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: October 4, 2011
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Kenta Mukai, Toru Ugajin, Takahiro Maezawa, Naoki Honbo, Akira Isogai
  • Patent number: 8012573
    Abstract: To provide a cellulose fiber composite having high transparency, low water absorption and low coefficient of linear thermal expansion. A fiber composite which comprises fibers having an average fiber diameter of at most 30 nm and a matrix material and which has a haze of at most 5 according to JIS K-7136 when the fiber composite has a thickness of 100 ?m.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: September 6, 2011
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Sachiko Kowata, Akira Watanabe, Hideko Akai
  • Patent number: 8007904
    Abstract: A multicomponent fiber having a metal phobic component and a metal philic component that allows for the selective distribution of metal across the surface of the fiber is disclosed. The inventive multicomponent fibers may be used in fabrics and other products manufactured therefrom for economically imparting at least one of an antistatic quality, antimicrobial and antifungal efficacy, and ultraviolet and/or electromagnetic radiation shielding.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: August 30, 2011
    Assignee: Fiber Innovation Technology, Inc.
    Inventor: Jeffrey S. Dugan
  • Publication number: 20110171865
    Abstract: The invention concerns a cellulose fiber of the genus Lyocell which is treated with a cross-linking agent, with the cross-linking agent inducing a protection from fibrillation on the fiber and exhibiting the following properties: the protection from fibrillation induced by the cross-linking agent changes if the fiber is stored within a pH range from 4.0 to 10.0, in particular under the influence of moisture and/or heat, within the pH range from 4.0 to 10.0, an optimum value exists at which the stability of the protection from fibrillation induced by the cross-linking agent during storage is highest a suitable range exists around the optimum value in which the stability is reduced by 20% at the most, compared to the stability at the optimum value, within the pH range from 4.0 to 10.
    Type: Application
    Filed: June 18, 2009
    Publication date: July 14, 2011
    Applicant: Lenzing Aktiengesellschaft
    Inventors: Heidrun Fuchs, Peter Dobson
  • Publication number: 20100304631
    Abstract: Sintered, carbon friction materials are made from fibrous materials that are impregnated with resins prior to sintering. Preferably, non-woven fibrous materials are impregnated with phenolic resin and sintered at 400 to 8000 C. The resulting material has an open porosity above 50 percent by volume.
    Type: Application
    Filed: October 31, 2006
    Publication date: December 2, 2010
    Applicant: BORGWARNER INC.
    Inventors: Feng Dong, Robert C. Lam, Yih Fang Chen
  • Patent number: 7838111
    Abstract: A cellulose pulp particle having the shape of a general prismatoid having two parallel bases, the pulp particle comprising pulp fibers in a wet laid pulp sheet form, one of the bases having an area that is equal to or greater than the area of the other base, the area of the larger base being equal to or less than 35 mm2 and equal to or greater than 8 mm2, the distance between the bases being equal to or greater than 0.9 mm and equal to or less than 5 mm, the particle being treated with a material. In some embodiments the material can be a hydrophilic, hydrophobic or softening chemical or a film.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: November 23, 2010
    Assignee: Weyerhaeuser NR Company
    Inventors: David E Fish, Hugh West, Linda A Beltz
  • Patent number: 7790283
    Abstract: Cellulosic fibers having enhanced reversible thermal properties and applications of such cellulosic fibers are described. In one embodiment, a cellulosic fiber includes a fiber body including a cellulosic material and a set of microcapsules dispersed in the cellulosic material. The set of microcapsules contain a phase change material having a latent heat of at least 40 J/g and a transition temperature in the range of 0° C. to 100° C., and the phase change material provides thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature. The cellulosic fiber can be formed via a solution spinning process, and can be used in various products where thermal regulating properties are desired.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: September 7, 2010
    Assignee: Outlast Technologies, Inc.
    Inventors: Mark Hartmann, James Brice Worley, Matthew North
  • Patent number: 7732048
    Abstract: The present invention relates to cellulose fiber containing 500 to 2000 of filaments and having homogeneous physical properties and the multi-filaments according to the present invention is characterized in that the strength and the breaking elongation of the multi-filaments are 4 to 9 g/d and 4 to 15%, respectively. In particular, the present invention is characterized in that each mono-filament selected 100 strands from every three part divided from multi-filaments has properties as following: (a) 3 to 9 g/d in average strength, 7 to 15% in average breaking elongation and 0.035 to 0.055 in by birefringence, (b) the differences of the above three parts are below 1.0 g/d in average strength, 1.5% in breaking elongation and 0.7 denier in denier, (c) the CV (%) (coefficient of variation) of the above three parts are below 10%, and (d) the birefringence differences of the above three parts are below 0.004.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: June 8, 2010
    Assignee: Hyosung Corporation
    Inventors: Ik-Hyun Kwon, Soo-Myung Choi, Tae-Jung Lee, Jae-Shik Choi
  • Patent number: 7709089
    Abstract: A rayon fiber that does not use a halide-based flame retardant, a phosphorous flame retardant or an organic solvent, has excellent flameproofness and launderability and is biodegradable when buried in the soil at the time of disposal, and a method for manufacturing the same are provided. The flameproof rayon fiber according to the present invention contains components of silicon and magnesium, and a compound containing the components of silicon and magnesium is amorphous.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: May 4, 2010
    Assignees: Daiwabo Holdings Co., Ltd., Daiwabo Rayon Co., Ltd.
    Inventors: Shigeo Fushitani, Masaru Nakano
  • Publication number: 20100086780
    Abstract: A method of producing a low-dust, fire retardant cellulose fiber material useful in producing insulation and other such products is provided. A liquid, comprising a solvent and at least one fire-retarding material soluble in that solvent, is applied to a cellulose source material, and the liquid is allowed to permeate into the cellulose source material. The liquid permeated material is dried to remove the solvent while the fire-retardant material remains in the cellulose source material. The dried fire-retardant cellulose source material is reduced in size and then de-dusted to produce a low to no dust, fire-retardant cellulose fiber material that has functionally equivalent fire-retardant properties as the dried fire-retardant cellulose source material before de-dusting.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 8, 2010
    Inventor: Thomas C. Shutt
  • Publication number: 20100055437
    Abstract: An antimicrobial fiber is described including: an inner layer and an outer layer; wherein the inner layer and the outer layer comprise at least one of the following characteristics: (I) the inner layer and the outer layer comprise of different concentrations, or different release rates, of at least one antimicrobial agent; and (II) the inner layer and the outer layer comprise different antimicrobial agents. An alternative antimicrobial fiber includes an antimicrobial agent compounded or combined with a dissolvable substance to promote release or binding of the antimicrobial agent. Related articles are also described.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: Tyco Healthcare Group LP
    Inventors: E. David Fink, Ronald F. Vitaris, Chirag B. Shah, Sharon A. Mulligan, Brian Dowd, Scott Orr
  • Patent number: 7670678
    Abstract: Hemicellulose fibers, more particularly to non-naturally occurring fibers incorporating hemicellulose, processes for making same and fibrous structures incorporating same are provided.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 2, 2010
    Assignee: The Procter & Gamble Company
    Inventor: Dean Van Phan
  • Patent number: 7638187
    Abstract: A beneficiated fiber and composite including a fiber having a lumen with voids. A suspension including a bonding agent, chemical blowing agent, and catalyst is drawn into the lumen by a capillary action to beneficiate the fiber. The beneficiated fiber may be imbedded with a polymeric material to form the composite. The natural voids of the lumen are preserved by the suspension causing the fiber to maintain natural density and strength characteristics.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: December 29, 2009
    Assignee: Americhem, Inc.
    Inventor: Jeffrey E. Nesbitt
  • Patent number: 7579078
    Abstract: Cellulosic fibers having enhanced reversible thermal properties and applications of such cellulosic fibers are described. In one embodiment, a cellulosic fiber includes a fiber body including a cellulosic material and a set of microcapsules dispersed in the cellulosic material. The set of microcapsules contain a phase change material having a latent heat of at least 40 J/g and a transition temperature in the range of 0° C. to 100° C., and the phase change material provides thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature. The cellulosic fiber can be formed via a solution spinning process, and can be used in various products where thermal regulating properties are desired.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: August 25, 2009
    Assignee: Outlast Technologies, Inc.
    Inventors: Mark H. Hartmann, James B. Worley, Matthew North
  • Patent number: 7550404
    Abstract: Composite materials containing a cellulose component such as wood fibers or particles, a zeolite component, and a polymer such as polyethylene, polypropylene, or polyvinyl chloride are able to provide good physical strength performance. The composites may be prepared by any of a number of mixing and forming processes, and may be used for making lumber and other structural materials.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 23, 2009
    Assignee: PQ Corporation
    Inventors: Erin D. Fisher, Roman W. Wypart, Bonita Kristofferson Marcus
  • Patent number: 7491443
    Abstract: Polysaccharides, more particularly, polysaccharide structures, especially fibers, comprising an unsubstituted polysaccharide, webs comprising such polysaccharide structures and processes for making such polysaccharide structures and/or webs are provided.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: February 17, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Larry Neil Mackey, Gregory Charles Gordon, Stephen Wayne Heinzman
  • Patent number: 7455901
    Abstract: There is provided a fiber-reinforced composite material containing fibers having an average fiber diameter of 4 to 200 nm and a matrix material, the composite material having a visible light transmittance of 60% or more at a wavelength of 400 to 700 nm, which is a conversion value based on a thickness of 50 ?m. A fiber-reinforced composite material composed of a matrix material and a fiber aggregate impregnated therewith is provided, in which when a segment length of a bright region corresponding to a pore region of the fiber aggregate is represented by L, which is obtained by statistical analysis of a unidirectional run-length image formed from a binary image obtained by binarization of a scanning electron microscopic image of the fiber aggregate, the total length of segments that satisfy L?4.5 ?m is 30% or less of the total analyzed length.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 25, 2008
    Assignees: Kyoto University, Rohm Co., Ltd., Mitsubishi Chemical Corporation, Hitachi, Ltd., Pioneer Corporation
    Inventors: Hiroyuki Yano, Junji Sugiyama, Masaya Nogi, Shin-ichiro Iwamoto, Keishin Handa, Akira Nagai, Takao Miwa, Yoshitaka Takezawa, Toshiyuki Miyadera, Takashi Kurihara, Tohru Matsuura, Nobutatsu Koshoubu, Tohru Maruno
  • Publication number: 20080241536
    Abstract: The present application is directed to a process of dissolving cellulose in an ionic liquid, regenerating the fibers and forming a nonwoven web. In particular it is directed to fibers produced from cellulose dissolved in ionic solvents and extruded by the meltblowing process. Bonded nonwoven webs can be obtained in the process.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Applicant: Weyerhaeuser Co.
    Inventors: Mengkui Luo, Hugh West, Amar N. Neogi