Coated Or Impregnated Regenerated Cellulose Fiber Fabric Patents (Class 442/165)
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Patent number: 9029275Abstract: Provided is a nanofiber sheet that sufficiently refined by fibrillation and has high crystallinity of cellulose fiber and can realize a fiber-reinforced composite material exhibiting high transparency, a high elastic modulus, a low coefficient of linear thermal expansion, and high heat resistance and being high in flatness and smoothness. This nanofiber sheet includes crystalline cellulose as the main component and a lignin in an amount of from 10 ppm to 10 wt %. When a fiber/resin composite material obtained by impregnating the nanofiber sheet with tricyclodecane dimethacrylate, subjecting the impregnated product to UV-curing at 20 J/cm2, and heating the cured product in vacuum at 160° C. for two hours includes 60 wt % of the cured tricyclodecane dimethacrylate and 40 wt % of nanofiber, the following physical characteristics (i) to (iii) are satisfied: (i) the parallel light transmittance of light of a wavelength of 600 nm at a sheet thickness of 100 ?m is 70% or more; (ii) the Young's modulus is 5.Type: GrantFiled: July 13, 2007Date of Patent: May 12, 2015Assignees: Mitsubishi Chemical Corporation, Rohm Co., Ltd.Inventors: Hiroyuki Yano, Masaya Nogi, Shinsuke Ifuku, Kentarou Abe, Keishin Handa
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Publication number: 20150126088Abstract: A roofing underlayment comprising a carrier substrate included a felt mixture and a binder mixture, and a volume of asphalt flux saturating the carrier substrate. The felt mixture may comprise between about seventy-five percent and about ninety-five percent by weight corrugated paper/cardboard fibers and between about five percent and about twenty-five percent by weight fiberglass fibers. The volume of asphalt flux may comprise between about twenty-five and fifty percent of a total weight of the roofing shingle underlayment and may saturate the carrier substrate at a saturation percentage between about thirty and about one hundred percent. The binder mixture may include a mixture of alum and rosin having a mixture ratio by weight of alum to rosin in a range between one to one (1:1) and four to one (4:1).Type: ApplicationFiled: October 31, 2014Publication date: May 7, 2015Inventors: Michael R. Shifferd, David C. Humphreys, Robert L. Bradley, Steven L. Russell, Zachary J. Guza
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Patent number: 8939295Abstract: A multi-layer, fluid transmissive structure is provided that comprises first and second fiber layers each comprising a plurality of polymeric fibers bonded to each other at spaced apart contact points. The polymeric fibers of these fiber layers have diameters greater than one micron and collectively define interconnected interstitial spaces providing tortuous fluid flow paths through the first and second fiber layers. The structure also comprises a plurality of nanofibers disposed intermediate at least a portion of the first fiber layer and at least a portion of the second fiber layer.Type: GrantFiled: February 17, 2010Date of Patent: January 27, 2015Assignee: Essentra Porous Technologies Corp.Inventors: Bennett C. Ward, Geoffrey M. Stoltz
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Patent number: 8932965Abstract: Fabrics containing camouflage patterns are produced from dyes wherein at least certain of the colors contained in the pattern contain a low reflectance dye. The low reflectance dye is added to one or more colors in the pattern in order to preserve the camouflage pattern when viewed through night vision goggles as relatively long wavelengths, such at wavelengths greater than 900 nm. In one embodiment, the low reflectance dye comprises a thiazine. The low reflectance dye is blended with other dyes to produce colors in the pattern. By altering the concentration of the low reflectance dye in each of the colors, the colors contained in the camouflage pattern remain separate and distinct even at relatively long wavelengths.Type: GrantFiled: July 30, 2009Date of Patent: January 13, 2015Assignee: International Textile Group, Inc.Inventor: Dale R. Wendel
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Patent number: 8785623Abstract: 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: GrantFiled: March 31, 2008Date of Patent: July 22, 2014Assignee: Cellutech ABInventors: Richard T. Olsson, My Ahmed Said Samir Azizi, Lars Berglund, Ulf W. Gedde
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Publication number: 20130227759Abstract: A fabric that contains a blend of textile and polyarylene sulfide fibers is provided. At least a portion of the textile fibers, polyarylene sulfide fibers, or a combination thereof are coated with an emulsion copolymer that is crosslinked. The copolymer composition is cured after it is applied to the fibers to initiate the formation of crosslink bonds between the emulsion copolymer and create a three-dimensional network that is capable of coating and encapsulating the fibers. It is believed that this three-dimensional network is able to physically entrap disperse additives when applied to the fibers. Still further, the present inventors have discovered that the emulsion copolymer can uniformly coat the fibers and thus readily receive the additive, which eliminates the need for high temperatures and/or pressures during a dyeing process, for example, and can also result in a relatively uniform coating of the additive on the fibers.Type: ApplicationFiled: February 22, 2013Publication date: September 5, 2013Applicant: TICONA LLCInventors: Harrie P. Schoots, Kaushik Chakrabarty, Xinyu Zhao, Arvind Karandikar, Martin Brueck, Christopher McGrady
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Publication number: 20130209714Abstract: A paper/fabric composite behaving like a fabric sheet material with all the benefits of paper includes a Kraft paper and a viscose fabric laminated to the Kraft paper. The composite may be formed into a case including a first piece of the paper/fabric composite and a second piece of the paper/fabric composite. The first piece of the paper/fabric composite and the second piece of the paper/fabric composite being sewn together to form the case. Furthermore some functional components of the cases may be supplemented by a paper/biopolymer composite.Type: ApplicationFiled: March 15, 2013Publication date: August 15, 2013Applicant: PAPERNOMAD GmbHInventor: PAPERNOMAD GmbH
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Patent number: 8247334Abstract: A moisture-vapor-permeable and water-resistant fiber involves a layer of base fabric, a moisture-vapor-permeable layer, and a water absorption layer. The moisture vapor permeable layer is obtained by coating or laminating the inner side of the fabric with a moisture-vapor-permeable resin, which prohibits the penetration of the water droplets but allows the penetration of the moisture vapor molecules. The moisture absorption layer with intricate and colorful design is composed of binding resin blended with fiber powder and/or inorganic powder, and which is dot-coated or dot-printed onto the inner side of the moisture-vapor-permeable and water-resistant layer. The fiber powder or inorganic powder is highly hydrophilic and highly absorbent in its moisture absorption ability, which, when the clothes are fabricated, can prevent the penetration of raindrops but allows the transmission of the evaporated vapor of sweat through the fabric. Moreover, it is capable of absorbing plentiful amount of sweat.Type: GrantFiled: October 23, 2007Date of Patent: August 21, 2012Assignee: G-Fun Industrial CorporationInventors: Chiu-Shiung Tsai, Kun-Lung Chuang, Fong-Ying Tien, Mou-Chuan Huang
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Patent number: 7915185Abstract: A high performance flame retardant textile fabric is provided which is suitable for use in producing close-fitting garments, such as undergarments, that come into direct contact with the skin of the wearer and provide a protective function, as well as in non-apparel applications. The fabric is formed of yarns of rayon continuous filaments, the yarns having outer filaments along the periphery of the yarn and inner filaments in the interior of the yarn. A cured phosphorus-based flame retardant compound is durably affixed to the filaments and imparts flame retardant properties to the fabric. The outer filaments of the yarns have a phosphorus content at least 25% greater than the inner filaments of the yarn.Type: GrantFiled: March 27, 2006Date of Patent: March 29, 2011Assignee: SSM Industries, Inc.Inventors: Scott N. Hilleary, Greg Watson
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Publication number: 20100255270Abstract: The present invention provides a fabric and a fabric structure made of yarns with reduced water absorption. The fabric comprises yarns and interstices between the yarns, the interstices between the yarns having an average width of greater than 100 ?m. At least one of the yarns is comprised of multiple fibers. Said at least one yarn has voids between the fibers wherein the voids are filled up with a polymer material. The interstices remain open and the size of the interstices is the same as before the treatment. The filling of the voids between the fibers with the polymer material prevents the absorption of water into said voids and therefore leads to reduced water absorption of the fabric. The polymer material is substantially only located within the voids of the yarn and has embedded the fibers within the outer surface of said yarn.Type: ApplicationFiled: September 8, 2008Publication date: October 7, 2010Inventor: Werner Stuebiger
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Patent number: 7659217Abstract: The present invention is directed to the design and manufacturing of a field durable, repeatedly launderable and permanently fire resistant, comfortable and economical FR nonwoven composite fabric based garment, which meets the stringent requirements of military combat uniform clothing. The nonwoven based garment is designed to replace the traditional woven textile fabric used in the military today. The novel garment of the current invention is constructed using a unique spunlaced or hydroentangled FR nonwoven composite fabric that exhibits mechanical, physical, durability and comfort characteristics similar to or better than that of the current woven military uniform fabric. In particular, the present invention contemplates the nonwoven composite fabric used to make the garment is prepared by combining at least two separate nonwoven webs forming the inside and outside layers of the garment.Type: GrantFiled: June 6, 2008Date of Patent: February 9, 2010Assignee: Nanosyntex, Inc.Inventors: Vasanthakumar Narayanan, Gary Arinder, Stephen Szczesuil
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Publication number: 20090264036Abstract: Provided is a nanofiber sheet that sufficiently refined by fibrillation and has high crystallinity of cellulose fiber and can realize a fiber-reinforced composite material exhibiting high transparency, a high elastic modulus, a low coefficient of linear thermal expansion, and high heat resistance and being high in flatness and smoothness. This nanofiber sheet includes crystalline cellulose as the main component and a lignin in an amount of from 10 ppm to 10 wt %. When a fiber/resin composite material obtained by impregnating the nanofiber sheet with tricyclodecane dimethacrylate, subjecting the impregnated product to UV-curing at 20 J/cm2, and heating the cured product in vacuum at 160° C. for two hours includes 60 wt % of the cured tricyclodecane dimethacrylate and 40 wt % of nanofiber, the following physical characteristics (i) to (iii) are satisfied: (i) the parallel light transmittance of light of a wavelength of 600 nm at a sheet thickness of 100 ?m is 70% or more; (ii) the Young's modulus is 5.Type: ApplicationFiled: July 13, 2007Publication date: October 22, 2009Applicants: Nippon Telegraph and Telephone Corporation, Pioneer Corporation, Hitachi, Ltd., Mitsubishi Chemical Corporation, Rohm Co., Ltd.Inventors: Hiroyuki Yano, Masaya Nogi, Shinsuke Ifuku, Kentarou Abe, Keishin Handa
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Patent number: 7504346Abstract: Aerogel composite materials having a lofty fibrous batting reinforcement preferably in combination with one or both of individual short randomly oriented microfibers and conductive layers exhibit improved performance in one or all of flexibility, drape, durability, resistance to sintering, x-y thermal conductivity, x-y electrical conductivity, RFI-EMI attenuation, and/or burn-through resistance.Type: GrantFiled: May 18, 2006Date of Patent: March 17, 2009Assignee: Aspen Aerogels, Inc.Inventors: Christopher J. Stepanian, George L. Gould, Redouane Begag
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Patent number: 7179538Abstract: A heat and pressure consolidated flexible laminate, and a method for producing the same, is provided that includes in superimposed relationship, a flexible, resin coated backing layer consisting of one or more sheets, a decorative layer consisting essentially of a leather material and, optionally, an overlay.Type: GrantFiled: January 20, 2004Date of Patent: February 20, 2007Assignee: Panolam Industries International, Inc.Inventors: Sylvie Gauthier, George Tsangarides
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Patent number: 6867154Abstract: The present disclosure relates to patterned, flame resistant fabrics and methods of making them. Generally speaking, the fabrics comprise a plurality of high tenacity, flame resistant fibers, and a plurality of cellulosic fibers containing a flame retardant compound, and at least one color which is printed on the fabric to form the pattern. In a preferred embodiment, the flame resistant fibers are para-aramid fibers and the cellulosic fibers are rayon fibers to yield a strong, flame resistant fabric.Type: GrantFiled: August 18, 2000Date of Patent: March 15, 2005Assignee: Southern Mills, Inc.Inventors: Clyde C. Lunsford, Phillip H. Riggins, Michael T. Stanhope
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Patent number: 6825138Abstract: A textile treatment process, treatment bath, and treated fabric are disclosed. The process imparts water repellant, stain resistant, and wrinkle-free properties as well as aesthetically pleasing hand properties to a fabric made in whole or in part of fibers having a hydroxyl group, such as cellulosic fibers, though immersion in an aqueous bath and subsequent heating for curing. The aqueous treatment bath contains a urea resin, polytetrafluorethylene (PTFE) and, preferably, fluoroalkyl acrylate co-polymer.Type: GrantFiled: April 12, 2002Date of Patent: November 30, 2004Assignee: Warmkraft, Inc.Inventor: Ronnie Franklin Lack
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Patent number: 6818572Abstract: A floor cleaning wipe comprising a water insoluble substrate which is impregnated with a floor cleaning composition.Type: GrantFiled: December 10, 2001Date of Patent: November 16, 2004Assignee: Colgate-Palomolive CoInventors: John Puckhaber, Harry Aszman
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Patent number: 6818024Abstract: Fabric blends of inherently flame resistant fibers and flame resistant cellulosic fibers that contain a flame retardant. According to the method of production of these blends, the inherently flame resistant fibers can be dyed a full shade of color without depleting the flame retardant contained in the cellulosic fibers. In addition, the potential for laundering shrinkage of the inherently flame resistant fibers of the blends is reduced regardless of whether both, one of, or neither of the inherently flame resistant fibers and the flame resistant cellulosic fibers are dyed. Dyeing and/or shrinkage prevention of these blends is conducted at temperatures below 100° C., typically approximately between 70° C. and 100° C.Type: GrantFiled: January 17, 2003Date of Patent: November 16, 2004Assignee: Southern Mills, Inc.Inventors: Clyde C. Lunsford, Phillip H. Riggins, Michael T. Stanhope
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Patent number: 6806213Abstract: This invention relates to a disposable wash cloth. The disposable wash cloth includes an aqueous solution incorporated onto a basehseet. The aqueous solution includes a fragrance, at least one mild surfactant, at least one moisturizer, and at least one preservative. The disposable wash cloth is capable of being heated to a select temperature at least twice while maintaining chemical stability.Type: GrantFiled: December 20, 2001Date of Patent: October 19, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventor: JoAnn Adele Brooks
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Publication number: 20040170815Abstract: A commercially available product, of a type having a batting with a softness and flexibility and configured for use in the formation of a quilt, where the quilt has at least one cover to be securably attached to the batting, includes a composite member sold in at least one desirable size for making a quilt and formed of the batting and an adhesive material as an article of manufacture, is disclosed. The batting consists of a fibrous material and the adhesive material includes a water-soluble material and is effective to form a removable bond at the opposing faces of the batting, so that the quilt may be formed by at least temporary attachment of the cover to the batting by the bond and the bond is removable after formation of the quilt.Type: ApplicationFiled: March 12, 2004Publication date: September 2, 2004Applicant: June Tailor, Inc.Inventors: Jilene A. Repp, Francis A. Yogerst
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Publication number: 20040116026Abstract: A resin charged media can be a single or layered construction needled together to provide a graded-density structure of fine fibers intermixed with finer fibers. This resulting media possesses a higher particulate loading retention capability, particularly early in the filtration cycle, relative to other cellulose, spun-bonds, or other similar materials commonly applied to filtration applications where filtration is predominantly a surface-loading phenomenon. The filtration media provides for depth filtration with the multi-layered needled layers, thereby enhancing the overall particulate-holding capacity of the charged media. This results in more resistance to fine particulates and improvements in efficiency due to increased sub-micron particle loading. With the filter media consisting of a graded structure, surface loading phenomenon can be reduced and filter life improved. Since the layers in the media are physically combined using needling technology, they will not separate.Type: ApplicationFiled: December 5, 2003Publication date: June 17, 2004Applicant: Filter Materials, Inc.Inventors: Don A. Kubose, Jin Young Choi, James T. Greene
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Patent number: 6750160Abstract: A detergent-impregnated article, especially suitable for cleaning hard surface such as glass, characterized in that a base body is impregnated with a detergent comprising solid abrasive particles, a protective layer-forming component, an organic solvent, a drying accelerator, a thickening polysaccharide and a surface active agent.Type: GrantFiled: April 19, 1999Date of Patent: June 15, 2004Assignee: Kao CorporationInventors: Koji Hanaoka, Eiichi Hoshino, Fumiko Inaba, Hironobu Sionome
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Patent number: 6727196Abstract: The present invention relates to a composite material including a substrate with a first and a second layer, and a surfactant. The surfactant is applied to the first layer of the substrate. The surfactant acts to lower the surface tension of a fluid which contacts the first layer of the substrate such that the fluid is allowed or more readily enabled to pass through the first layer of the substrate, but such that the surfactant does not substantially adversely effect the absorption capacity or wicking height of the second layer of the substrate, as the second layer of the substrate substantially inactivates the surfactant upon contact or interaction therewith.Type: GrantFiled: August 31, 2001Date of Patent: April 27, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ali Yahiaoui, Bernard Cohen, Joel Brostin, Michael Tod Morman
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Patent number: 6713411Abstract: Disclosed is a laminate having flame and chemical resistance, which may be used to form protective fabrics. The laminate contains a first layer of a spunlace fabric having a fire retardant additive applied thereto; and a second layer of a polymeric film.Type: GrantFiled: April 19, 1999Date of Patent: March 30, 2004Assignee: Precision Fabric GroupInventors: William C. Cox, Philip E. Harris
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Patent number: 6680264Abstract: A glass cleaning wipe comprising a nonwoven fabric containing wood pulp fibers, the nonwoven fabric is impregnated with a glass cleaning composition.Type: GrantFiled: July 12, 2001Date of Patent: January 20, 2004Assignee: Colgate-Palmolive Co.Inventor: Jean Julemont
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Publication number: 20040009725Abstract: A treatment composition and a method for treating substrates that includes contacting at least a portion of the substrate with (a) an alkyl polyglycoside or a derivative of an alkyl polyglycoside; and (b) a polysaccharide, a modified polysaccharide, a derivative of a polysaccharide or a derivative of a modified polysaccharide is provided. A treated substrate is provided that when used in a personal care product like a diaper and in such a way that the substrate is not in direct contact with skin promotes skin dryness.Type: ApplicationFiled: July 2, 2002Publication date: January 15, 2004Applicant: Kimberly-Clark Worldwide, Inc.Inventors: Ali Yahiaoui, Susan Carol Paul, Andrea Susan Wulz
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Patent number: 6677256Abstract: Absorbent structures that form superabsorbent polymers in situ. The structures include an absorbent material and a fibrous material containing an activating agent. The fibrous material releases the activating agent upon stimulation with an activator, which causes the polymer to become a superabsorbent polymer. The absorbent component is desirably a water-swellable, water-insoluble polymer. The absorbent structures form a superabsorbent composition in situ. Methods of making the activating agent containing fibrous material are provided.Type: GrantFiled: December 28, 1999Date of Patent: January 13, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Tong Sun, Werner Lonsky, Yong Li, Jian Qin, Xiaomin Zhang, Jacek Dutkiewicz
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Patent number: 6626964Abstract: The present disclosure relates to flame resistant fabrics that comprise a plurality of inherently flame resistant fibers and a plurality of cellulosic fibers containing a flame retardant compound. In one arrangement, the inherently flame resistant fibers have been dyed and/or shrinkage controlled with a dye-assistant such that the fabric contains a residual amount of a dye-assistant selected from the group consisting of N-cyclohexylpyrrolidone, benzyl alcohol, N,N-dibutylformamide, N,N-diethylbenzamide, hexadecyltrimethyl ammonium salt, N,N-dimethylbenzamide, N,N-diethyl-m-toluamide, N-octylpyrrolidone, aryl ether, an approximately 50/50 blend of N,N-dimethylcaprylamide and N,N-dimethylcapramide, and mixtures thereof.Type: GrantFiled: August 28, 2000Date of Patent: September 30, 2003Inventors: Clyde C. Lunsford, Phillip H. Riggins, Michael T. Stanhope
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Patent number: 6613703Abstract: A cyclodextrin-modified thermoplastic porous layer material is prepared by coating the surface of a fibrous nonwoven web, open-celled foam, porous film or the like with a chemical composition including a cyclodextrin compound, and then irradiating the coated fabric to induce a chemical reaction between the cyclodextrin compound and the underlying layer material. The resulting cyclodextrin-modified layer material has durable hydrophilic properties useful in topsheets for absorbent articles, and entrapment capabilities useful in water filters, blood filters, controlled delivery articles and protective garments.Type: GrantFiled: April 27, 2000Date of Patent: September 2, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ali Yahiaoui, Tami Lynette O'Connell, David Lewis Myers, Charles Edward Bolian, II
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Publication number: 20030129897Abstract: A forming panel having board with a release barrier of a substrate and a barrier/release layer secured to the board by an adhesive.Type: ApplicationFiled: October 17, 2002Publication date: July 10, 2003Inventors: Howell B. Eleazer, Allan M. Smith, Thomas E. Godfrey, William S. Freeman
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Publication number: 20030129901Abstract: Disclosed is a laminate having flame and chemical resistance, which may be used to form protective fabrics. The laminate contains a first layer of a spunlace fabric having a fire retardant additive applied thereto; and a second layer of a polymeric film.Type: ApplicationFiled: April 19, 1999Publication date: July 10, 2003Inventors: WILLIAM C. COX, PHILIP E. HARRIS
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Publication number: 20020137414Abstract: A textile treatment process, treatment bath, and treated fabric are disclosed. The process imparts water repellant, stain resistant, and wrinkle-free properties as well as aesthetically pleasing hand properties to a fabric made in whole or in part of fibers having a hydroxyl group, such as cellulosic fibers, though immersion in an aqueous bath and subsequent heating for curing. The aqueous treatment bath contains a urea resin, polytetrafluorethylene (PTFE) and, preferably, fluoroalkyl acrylate co-polymer.Type: ApplicationFiled: April 12, 2002Publication date: September 26, 2002Applicant: Warmkraft, Inc.Inventor: Ronnie Franklin Lack
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Patent number: 6451718Abstract: A water disintegratable non-woven fabric having excellent water disintegratability and high wet strength can be obtained by a step of forming a fiber web from fibers having a fiber length of 10 mm or less, a step of applying a water jet treatment to the fiber web to obtain a fiber sheet having wet strength of less than 100 g/25 mm in MD and CD, the wet strength being defined by tensile strength at break of the fiber sheet, as measured by using a tensilon tester with a chuck distance of 100 mm, at a tensile speed of 100 mm/min to the fiber sheet which is cut into 25 mm width and 150 mm length and impregnated with water in an amount 2.5 times the weight of the fiber sheet, and a step of adding at least one binder selected from the group consisting of carboxymethyl cellulose, alkylcellulose, polyvinyl alcohol and modified polyvinyl alcohol to the fiber sheet. The water disintegratable non-woven fabric is sufficiently bulky and has an excellent wiping effect.Type: GrantFiled: January 12, 1999Date of Patent: September 17, 2002Assignee: Uni-Charm CorporationInventors: Daisuke Yamada, Naohito Takeuchi, Takayoshi Konishi
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Patent number: 6372674Abstract: A textile treatment process, treatment bath, and treated fabric are disclosed. The process imparts water repellant, stain resistant, and wrinkle-free properties as well as aesthetically pleasing hand properties to a fabric made in whole or in part of fibers having a hydroxyl group, such as cellulosic fibers, though immersion in an aqueous bath and subsequent heating for curing. The aqueous treatment bath contains 8%-14% urea resin, preferably DMDHEU, and 4%-10% of a polytetrafluorethylene, preferably ZONYL® PTFE.Type: GrantFiled: September 2, 1999Date of Patent: April 16, 2002Assignee: Warmkraft, Inc.Inventor: Ronnie Franklin Lack
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Patent number: 6300259Abstract: A crosslinkable cellulosic fibrous product that includes cellulosic fibers and a crosslinking agent is disclosed. The crosslinkable cellulosic fibrous product can be formed as a web or sheet that has structural integrity and sheet strength sufficient to permit the fibrous web to be rolled, transported, and used in rolled form in subsequent processes. The crosslinkable fibrous product can be converted into a crosslinked fibrous product by subjecting the product to conditions sufficient to effect intrafiber crosslinking. Alternatively, the web can be fiberized and the resulting individual crosslinkable fibers combined with other fibers and/or other materials to provide a fibrous web containing crosslinkable cellulosic fibers. Subjecting such a web to crosslinking conditions provides a fibrous web that includes, in addition to other fibers or materials, crosslinked cellulosic fibers.Type: GrantFiled: April 26, 1999Date of Patent: October 9, 2001Assignee: Weyerhaeuser CompanyInventors: John A. Westland, Colin Elston
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Patent number: 6218321Abstract: Articles of manufacture which comprise biodegradable fibers and fabrics made therefrom. The fibers are made from starch-based biodegradable thermoplastic polymers, which preferably include a an additional biodegradable thermoplastic polymer blended with thermoplastic starch for improved chemical and physical properties. Threads or fibers for the manufacture of these articles are drawn in a process that improves their mechanical properties, particularly their strength. These threads or fibers can be used in the manufacture of articles that have open, semi-densely packed or densely packed structures.Type: GrantFiled: August 25, 1997Date of Patent: April 17, 2001Assignee: Biotec Biologische Naturverpackungen GmbHInventors: Jurgen Lorcks, Winfried Pommeranz, Harald Schmidt
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Patent number: 6194050Abstract: A composite of thermally non-adherent fluoropolymeric and non-fluoropolymeric components is created through the agency of a non-woven, fibrous binder interposed between and portionally embedded into both components. The fibers of the non-woven binder have a substantial portion of their length extending into both components and cross the interface at an angle that is substantially normal to the plane of embedment. The composite possesses good peel-adhesion behavior between the otherwise thermally non-adherent components.Type: GrantFiled: June 28, 1999Date of Patent: February 27, 2001Assignee: Chemfab CorporationInventors: Keith Gordon Koerber, James Michael McMartin, John Walter Verbicky, Jr., John Effenberger, J. George Drobny
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Patent number: 6194517Abstract: A water soluble polymer comprising from about 25 weight % to about 90 weight % of an unsaturated carboxylic acid/unsaturated carboxylic acid ester terpolymer; from about 10 weight % to about 75 weight % of a divalent ion inhibitor and from about 0 weight % to about 10 weight % of a plasticizer is soluble in an aqueous environment having a divalent ion concentration less than about 50 ppm and a monovalent ion concentration of less than about 0.5 weight %. Also disclosed is a water dispersible fibrous fabric having a fibrous substrate and an effective amount of the binder distributed on the substrate and a method of making a water dispersible fibrous fabric.Type: GrantFiled: October 5, 1999Date of Patent: February 27, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: William Seal Pomplun, Pavneet Singh Mumick, David Martin Jackson, Yihua Chang
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Patent number: 6165919Abstract: Cellulosic materials such as cotton fabrics and paper are crosslinked with a composition comprising (A) polymers of ethylenically unsaturated polycarboxylic acid monomers or salts thereof, the monomers having one or more dicarboxylic groups wherein the carboxyl groups are on adjacent carbon atoms; (B) saturated .alpha.-hydroxypolycarboxylic acids or salts thereof; and (C) one or more curing catalysts, and heated to produce esterification and crosslinking of the celluose by reaction of the cellulosic hydroxyl groups with carboxyl groups in the reaction product of (A) and (B).Type: GrantFiled: January 14, 1997Date of Patent: December 26, 2000Assignee: University of Georgia Research Foundation, Inc.Inventor: Charles Qixiang Yang
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Patent number: 6153544Abstract: A flame retardant composition for treating a high pulp content nonwoven web is provided. The flame retardant composition includes soluble solids formed from inorganic salts, such as ammonium polyphosphate and sulfur. The TGA range of such soluble solids is from about 175.degree. C. to about 370.degree. C. The flame retardant composition may be continuously and uniformly applied to the high pulp content nonwoven web by a non-compressive process.Type: GrantFiled: March 20, 1998Date of Patent: November 28, 2000Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Fred Robert Radwanski, Henry Skoog, Terry Ray Cleveland, Phillip Sherman Warren, William Francis Cartwright
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Patent number: 6132476Abstract: Fabric blends of inherently flame resistant fibers and flame resistant cellulosic fibers that contain a flame retardant. According to the method of production of these blends, the inherently flame resistant fibers can be dyed a full shade of color without depleting the flame retardant contained in the cellulosic fibers. In addition, the potential for laundering shrinkage of the inherently flame resistant fibers of the blends is reduced regardless of whether both, one of, or neither of the inherently flame resistant fibers and the flame resistant cellulosic fibers are dyed. Dyeing and/or shrinkage prevention of these blends is conducted at temperatures below 100.degree. C., typically approximately between 70.degree. C. and 100.degree. C.Type: GrantFiled: April 20, 1998Date of Patent: October 17, 2000Assignee: Southern Mills, Inc.Inventors: Clyde C. Lunsford, Phillip H. Riggins, Michael T. Stanhope
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Patent number: 6037282Abstract: Nonwoven material produced by hydroentangling a fiber web, comprising recycled fibers with a fiber length of between 5 and 60 mm and a fineness of between 0.1 and 20 dtex, which are constituted by fibers which are mechanically shredded or torn from nonwoven waste, textile waste or the like. The fibers are mixed with each other and possibly with new fibers in a wet-formed, foam-formed, air-laid or dry-laid fiber web which is hydroentangled with sufficient energy for forming a compact absorbent material.Type: GrantFiled: February 13, 1997Date of Patent: March 14, 2000Assignee: SCA Hygiene Paper ABInventors: Ebbe Milding, Ulf Holm, Gerhard Lammers
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Patent number: 6022816Abstract: A closure for a container having an opening, said closure comprising at least one resilient mass of fibers selected from synthetic fibers, natural fibers and mixtures thereof, said at least one resilient mass of fibers having a density in the range of 0.15 to 2.00 g/cm.sup.3 and having one of an interlocked structure, an associated structure and a combination thereof, and wherein the closure is sized and has a density to enable the closure to be sealingly inserted into the opening of said container.Type: GrantFiled: July 7, 1997Date of Patent: February 8, 2000Assignee: Dewco Investments Pty Ltd.Inventor: George Galloway Dewar
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Patent number: 5986004Abstract: A water soluble polymer comprising from about 25 weight % to about 90 weight % of an unsaturated carboxylic acid/unsaturated carboxylic acid ester terpolymer; from about 10 weight % to about 75 weight % of a divalent ion inhibitor and from about 0 weight % to about 10 weight % of a plasticizer is soluble in an aqueous environment having a divalent ion concentration less than about 50 ppm and a monovalent ion concentration of less than about 0.5 weight %. Also disclosed is a water dispersible fibrous fabric having a fibrous substrate and an effective amount of the binder distributed on the substrate and a method of making a water dispersible fibrous fabric.Type: GrantFiled: March 17, 1997Date of Patent: November 16, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: William Seal Pomplun, Pavneet Singh Mumick, David Martin Jackson, Yihua Chang
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Patent number: 5972039Abstract: A method for enhancing the absorbency, hand-feel, or both of an article made from fibers having a spin finish thereon, where the spin finish decreases the hand-feel desirability and decreases the absorbency of the article. The method involves subjecting the article to corona treatment for a period of time sufficient to enhance the absorbency, hand-feel, or both of the article. The article produced by subjecting a substrate made of fibers having a finish thereon to corona treatment for a period of time sufficient to enhance the absorbency, hand-feel, or both of the substrate. A method of disposing of such articles by contacting the articles with a hot liquid, such as water, for a period of time sufficient to disperse or dissolve the article. Hot water soluble, cold water insoluble poly(vinyl) alcohol is one suitable fiber material.Type: GrantFiled: April 7, 1997Date of Patent: October 26, 1999Assignee: Isolsyer Company, Inc.Inventors: Travis W. Honeycutt, Baosheng Lee, Dong Dai, Nigel J. Flynn
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Patent number: 5972805Abstract: A water soluble polymer comprising from about 25 weight % to about 90 weight % of an unsaturated carboxylic acid/unsaturated carboxylic acid ester terpolymer; from about 10 weight % to about 75 weight % of a divalent ion inhibitor and from about 0 weight % to about 10 weight % of a plasticizer is soluble in an aqueous environment having a divalent ion concentration less than about 50 ppm and a monovalent ion concentration of less than about 0.5 weight %. Also disclosed is a water dispersible fibrous fabric having a fibrous substrate and an effective amount of the binder distributed on the substrate and a method of making a water dispersible fibrous fabric.Type: GrantFiled: April 7, 1998Date of Patent: October 26, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: William Seal Pomplun, Pavneet Singh Mumick, David Martin Jackson, Yihua Chang
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Patent number: 5922625Abstract: An ink jet printing method for effecting printing on a print medium such as a sheet of cloth by applying a jet of an ink to the print medium. The print medium is formed by preparing a sheet of cloth containing a cationic substance, preparing a backing sheet having a layer of an adhesive agent, and bonding the sheet of cloth to the adhesive surface of the backing sheet. After the jet of ink is applied to the print medium, the sheet of cloth is peeled off from the backing sheet and the freed sheet of cloth is rinsed with rinsing water containing a cation blocking agent, followed by drying.Type: GrantFiled: December 19, 1995Date of Patent: July 13, 1999Assignee: Canon Kabushiki KaishaInventors: Masahiro Haruta, Shoji Koike, Koromo Shirota, Aya Takaide, Tomoya Yamamoto, Mariko Suzuki
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Patent number: 5916659Abstract: A composite of thermally non-adherent fluoropolymeric and non-fluoropolymeric components is created through the agency of a non-woven, fibrous binder interposed between and portionally embedded into both components. The fibers of the non-woven binder have a substantial portion of their length extending into both components and cross the interface at an angle that is substantially normal to the plane of embedment. The composite possesses good peel strengths of greater than 5 pounds/linear inch between the otherwise thermally non-adherent components.Type: GrantFiled: January 14, 1996Date of Patent: June 29, 1999Assignee: Chemfab CorporationInventors: Keith Gordon Koerber, James Michael McMartin, John Walter Verbicky, Jr., John Effenberger, J. George Drobny
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Patent number: 5912196Abstract: A flame retardant composition for treating a high pulp content nonwoven web is provided. The flame retardant composition includes soluble solids formed from inorganic salts, such as ammonium polyphosphate and sulfur. The TGA range of such soluble solids is from about 175.degree. C. to about 370.degree. C. The flame retardant composition may be continuously and uniformly applied to the high pulp content nonwoven web by a non-compressive process.Type: GrantFiled: December 20, 1995Date of Patent: June 15, 1999Assignee: Kimberly-Clark Corp.Inventors: Fred Robert Radwanski, Henry Skoog, Terry Ray Cleveland, Phillip Sherman Warren, William Francis Cartwright
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Patent number: 5895504Abstract: Disclosed herein are methods for use of a towelette to clean stains from clothing and upholstery. The towelette is impregnated with a cleaning solution that is primarily water, but also contains a volatile cleaning agent and a surfactant. The pH and surfactant concentrations of the cleaning solution are regulated. The wipe reduces the incidence of readily visible rings around treated stains.Type: GrantFiled: July 9, 1997Date of Patent: April 20, 1999Assignee: S. C. Johnson & Son, Inc.Inventors: John A. Sramek, Thomas A. Strash