Cellulosic Patents (Class 428/393)
-
Patent number: 11767423Abstract: 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: GrantFiled: September 11, 2019Date of Patent: September 26, 2023Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventor: Akira Ito
-
Patent number: 11597818Abstract: 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: GrantFiled: March 27, 2020Date of Patent: March 7, 2023Assignee: Furukawa Electric Co., Ltd.Inventors: Jaekyung Kim, Kenichi Suyama, Yasuo Nakajima, Eiji Kozawa
-
Patent number: 11530316Abstract: 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: GrantFiled: March 27, 2020Date of Patent: December 20, 2022Assignee: Furukawa Electric Co., Ltd.Inventors: Jaekyung Kim, Kenichi Suyama, Yasuo Nakajima, Eiji Kozawa
-
Patent number: 11499035Abstract: 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: GrantFiled: March 27, 2020Date of Patent: November 15, 2022Assignee: Furukawa Electric Co., Ltd.Inventors: Jaekyung Kim, Kenichi Suyama, Yasuo Nakajima, Eiji Kozawa
-
Patent number: 11142631Abstract: 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: GrantFiled: January 8, 2020Date of Patent: October 12, 2021Assignee: Johns ManvilleInventor: Kiarash Alavi
-
Patent number: 10240259Abstract: 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: GrantFiled: April 4, 2014Date of Patent: March 26, 2019Assignees: Aalto University Foundation sr, Helsingin YliopistoInventors: Anne Michud, Alistair W. T. King, Arno Parviainen, Herbert Sixta, Lauri Hauru, Michael Hummel, Iikka Kilpeläinen
-
Patent number: 10214858Abstract: 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: GrantFiled: April 13, 2017Date of Patent: February 26, 2019Assignee: RAYONIER PERFORMANCE FIBERS, LLCInventors: Othman A. Hamed, Romuald S. Krzywanski
-
Patent number: 9994746Abstract: A composition for use as a swellable seal includes a base polymer, a super absorbent polymer, and a predetermined amount of cotton flock.Type: GrantFiled: May 6, 2016Date of Patent: June 12, 2018Assignee: RL Hudson & CompanyInventor: Robert Denton
-
Patent number: 9637577Abstract: 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: GrantFiled: April 21, 2016Date of Patent: May 2, 2017Assignee: Ji Joong Hae Ind. Co., Ltd.Inventor: Kwang Huh
-
Patent number: 9562305Abstract: 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: GrantFiled: November 29, 2012Date of Patent: February 7, 2017Assignee: Convatec Technologies Inc.Inventors: Wayne Bonnefin, Sarah Wroe, Amelia Prentice
-
Patent number: 9243073Abstract: 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: GrantFiled: March 10, 2011Date of Patent: January 26, 2016Assignee: TOPPAN PRINTING CO., LTD.Inventors: Mitsuharu Kimura, Yumiko Oomori
-
Patent number: 9145526Abstract: 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 definitioType: GrantFiled: May 1, 2013Date of Patent: September 29, 2015Assignee: FURANIX TECHNOLOGIES B.V.Inventors: Gerardus Johannes Maria Gruter, Edserd de Jong
-
Publication number: 20150125695Abstract: 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: ApplicationFiled: November 3, 2014Publication date: May 7, 2015Inventors: ERIC HUEBSCH, Noel Stephen Brabbs
-
Patent number: 8888464Abstract: 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: GrantFiled: November 21, 2011Date of Patent: November 18, 2014Assignee: Airbus HelicoptersInventors: Jacques Gaffiero, André Amari, Bénédicte Rinaldi, Didier Trallero
-
Publication number: 20140272409Abstract: 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: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: Samson Rope TechnologiesInventor: Samson Rope Technologies
-
Patent number: 8741430Abstract: 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: GrantFiled: June 25, 2008Date of Patent: June 3, 2014Assignee: Momentive Specialty Chemicals Inc.Inventors: Byung Young No, David M. Harmon, Todd R. Miller
-
Patent number: 8722773Abstract: 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: GrantFiled: June 27, 2011Date of Patent: May 13, 2014Assignee: Weyerhaeuser NR CompanyInventors: Robert T. Hamilton, Harshadkumar M. Shah, Jeffrey Jacob Cernohous, Neil R. Granlund, David E. Fish
-
Patent number: 8715826Abstract: 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: GrantFiled: November 29, 2012Date of Patent: May 6, 2014Assignee: The Procter & Gamble CompanyInventors: Larry Neil Mackey, Gregory Charles Gordon, Stephen Wayne Heinzman
-
Patent number: 8409705Abstract: 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: GrantFiled: January 17, 2012Date of Patent: April 2, 2013Assignee: D.W. Spinks (Embossing) Ltd.Inventor: Gary D Spinks
-
Patent number: 8361278Abstract: 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: GrantFiled: September 16, 2009Date of Patent: January 29, 2013Assignee: Dixie Consumer Products LLCInventors: Gregory M. Fike, Joseph R. Pounder, Daniel W. Sumnicht
-
Publication number: 20130014774Abstract: 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: ApplicationFiled: July 14, 2011Publication date: January 17, 2013Inventors: Andries D. Sebastian, Stephen Benson Sears, Anthony Richard Gerardi
-
Patent number: 8343625Abstract: 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: GrantFiled: March 12, 2012Date of Patent: January 1, 2013Assignee: The Procter & Gamble CompanyInventors: Larry Neil Mackey, Gregory Charles Gordon, Stephen Wayne Heinzman
-
Patent number: 8299174Abstract: 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: GrantFiled: February 25, 2010Date of Patent: October 30, 2012Assignee: Rohm and Haas CompanyInventors: Jean Marie Brady, Michael DeWayne Kelly, Barry Weinstein
-
Patent number: 8283392Abstract: 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: GrantFiled: July 16, 2009Date of Patent: October 9, 2012Assignee: Teijin Aramid B.V.Inventors: Rabindra Nath Datta, Sumana Datta, legal representative, Sebastianus Christoffel Josephus Pierik, Johan P. Baaij
-
Patent number: 8273453Abstract: 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: GrantFiled: December 7, 2005Date of Patent: September 25, 2012Assignee: The Procter & Gamble CompanyInventors: Larry Neil Mackey, Gregory Charles Gordon, Stephen Wayne Heinzman
-
Patent number: 8241747Abstract: 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: GrantFiled: August 26, 2009Date of Patent: August 14, 2012Assignee: Cellresin Technologies, LLCInventors: Willard E. Wood, Neil J. Beaverson
-
Patent number: 8187421Abstract: 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: GrantFiled: September 17, 2008Date of Patent: May 29, 2012Assignee: Georgia-Pacific Consumer Products LPInventors: Daniel W. Sumnicht, Joseph H. Miller
-
Patent number: 8187422Abstract: 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: GrantFiled: September 17, 2008Date of Patent: May 29, 2012Assignee: Georgia-Pacific Consumer Products LPInventors: Daniel W. Sumnicht, Joseph H. Miller
-
Patent number: 8173257Abstract: 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: GrantFiled: August 4, 2010Date of Patent: May 8, 2012Assignee: Outlast Technologies, Inc.Inventors: Mark Hartmann, James Brice Worley, Matthew North
-
Patent number: 8163215Abstract: 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: GrantFiled: December 22, 2006Date of Patent: April 24, 2012Assignee: BASF AktiengesellschaftInventors: Veit Stegmann, Klemens Massonne, Matthias Maase, Eric Uerdingen, Michael Lutz, Frank Hermanutz, Frank Gaehr
-
Patent number: 8158253Abstract: 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: GrantFiled: August 28, 2003Date of Patent: April 17, 2012Assignee: D W Spinks (Embossing) Ltd.Inventor: Gary D. Spinks
-
Patent number: 8133583Abstract: 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: GrantFiled: March 5, 2007Date of Patent: March 13, 2012Assignee: Shandong Helon Co., Ltd.Inventors: Sufeng Tian, Lejun Wang
-
Patent number: 8029896Abstract: 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: GrantFiled: August 7, 2008Date of Patent: October 4, 2011Assignee: Kao CorporationInventors: Yoshiaki Kumamoto, Kenta Mukai, Toru Ugajin, Takahiro Maezawa, Naoki Honbo, Akira Isogai
-
Patent number: 8012573Abstract: 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: GrantFiled: December 19, 2008Date of Patent: September 6, 2011Assignee: Mitsubishi Chemical CorporationInventors: Sachiko Kowata, Akira Watanabe, Hideko Akai
-
Patent number: 8007904Abstract: 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: GrantFiled: January 12, 2009Date of Patent: August 30, 2011Assignee: Fiber Innovation Technology, Inc.Inventor: Jeffrey S. Dugan
-
Publication number: 20110171865Abstract: 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: ApplicationFiled: June 18, 2009Publication date: July 14, 2011Applicant: Lenzing AktiengesellschaftInventors: Heidrun Fuchs, Peter Dobson
-
Publication number: 20100304631Abstract: 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: ApplicationFiled: October 31, 2006Publication date: December 2, 2010Applicant: BORGWARNER INC.Inventors: Feng Dong, Robert C. Lam, Yih Fang Chen
-
Patent number: 7838111Abstract: 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: GrantFiled: January 25, 2007Date of Patent: November 23, 2010Assignee: Weyerhaeuser NR CompanyInventors: David E Fish, Hugh West, Linda A Beltz
-
Patent number: 7790283Abstract: 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: GrantFiled: June 29, 2007Date of Patent: September 7, 2010Assignee: Outlast Technologies, Inc.Inventors: Mark Hartmann, James Brice Worley, Matthew North
-
Patent number: 7732048Abstract: 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: GrantFiled: September 23, 2005Date of Patent: June 8, 2010Assignee: Hyosung CorporationInventors: Ik-Hyun Kwon, Soo-Myung Choi, Tae-Jung Lee, Jae-Shik Choi
-
Patent number: 7709089Abstract: 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: GrantFiled: August 22, 2006Date of Patent: May 4, 2010Assignees: Daiwabo Holdings Co., Ltd., Daiwabo Rayon Co., Ltd.Inventors: Shigeo Fushitani, Masaru Nakano
-
Publication number: 20100086780Abstract: 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: ApplicationFiled: October 2, 2009Publication date: April 8, 2010Inventor: Thomas C. Shutt
-
Publication number: 20100055437Abstract: 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: ApplicationFiled: August 27, 2009Publication date: March 4, 2010Applicant: Tyco Healthcare Group LPInventors: E. David Fink, Ronald F. Vitaris, Chirag B. Shah, Sharon A. Mulligan, Brian Dowd, Scott Orr
-
Patent number: 7670678Abstract: Hemicellulose fibers, more particularly to non-naturally occurring fibers incorporating hemicellulose, processes for making same and fibrous structures incorporating same are provided.Type: GrantFiled: October 31, 2007Date of Patent: March 2, 2010Assignee: The Procter & Gamble CompanyInventor: Dean Van Phan
-
Patent number: 7638187Abstract: 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: GrantFiled: December 28, 2006Date of Patent: December 29, 2009Assignee: Americhem, Inc.Inventor: Jeffrey E. Nesbitt
-
Patent number: 7579078Abstract: 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: GrantFiled: July 27, 2006Date of Patent: August 25, 2009Assignee: Outlast Technologies, Inc.Inventors: Mark H. Hartmann, James B. Worley, Matthew North
-
Patent number: 7550404Abstract: 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: GrantFiled: September 30, 2005Date of Patent: June 23, 2009Assignee: PQ CorporationInventors: Erin D. Fisher, Roman W. Wypart, Bonita Kristofferson Marcus
-
Patent number: 7491443Abstract: 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: GrantFiled: May 12, 2008Date of Patent: February 17, 2009Assignee: The Procter & Gamble CompanyInventors: Larry Neil Mackey, Gregory Charles Gordon, Stephen Wayne Heinzman
-
Patent number: 7455901Abstract: 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: GrantFiled: January 18, 2006Date of Patent: November 25, 2008Assignees: Kyoto University, Rohm Co., Ltd., Mitsubishi Chemical Corporation, Hitachi, Ltd., Pioneer CorporationInventors: 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: 20080241536Abstract: 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: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Applicant: Weyerhaeuser Co.Inventors: Mengkui Luo, Hugh West, Amar N. Neogi