Additional Nonwoven Fabric Is A Spun-bonded Fabric Patents (Class 442/382)
  • Patent number: 10307995
    Abstract: A hot melt adhesive using polypropylene impact copolymers that is particularly well suited for elastic attachment and stretch films in diaper structures. The hot melt adhesive composition is a blend of about 2.5% to about 30%, by weight, of a polypropylene impact copolymer; about 2.5% to about 30%, by weight, of an olefin based elastomer; about 10% to about 70%, by weight, of a tackifying resin having a softening point of at least about 80° C. and up to about 140° C.; about 0% to about 60%, by weight, of a plasticizer; and about 0.1% to about 5% of a stabilizer or antioxidant.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: June 4, 2019
    Assignee: Bostik, Inc.
    Inventors: Patrick John Czaplewski, Steven Daniel Gray
  • Patent number: 9540746
    Abstract: A nonwoven web material including fibers formed of a polyolefin and a polyester is disclosed. The fibers may include fine fibers produced by, for example, a meltblowing process. The polyolefin may be polypropylene and the polyester may be polylactic acid. The polylactic acid may be obtained and included by recycling scrap nonwoven material containing a polylactic acid component, hydrolyzing the polylactic acid component to reduce its viscosity, blending the hydrolyzed polylactic acid with a polyolefin resin, and melt-spinning the blended material to form fibers. A related process is disclosed.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: January 10, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Arman Ashraf, Ronald Thomas Gorley
  • Patent number: 9326896
    Abstract: The present disclosure relates to a process for making an absorbent core comprising a nonwoven core cover that offers improved performance on holding back fine particulate material after having been exposed to external strain.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: May 3, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Jochen Schäfer, Mattias Schmidt, Nicole Graf
  • Publication number: 20150114546
    Abstract: A multilayer nonwoven structure is described where the nonwoven structure comprises at least two spun bond layers and at least one easily meltable layer. The easily meltable layer is located between the at least two spunbond layers. The easily meltable layer is comprised of a polymer having a melting point at least 20° C. less than the melting point of the polymer which comprises the surface of the fibers which comprise the spun bond layer, or is made from a polymer which is readily absorbs some form of radiation. Under bonding conditions, the fibers which make up the easily meltable layer can be melted to form a film, thereby improving bather properties of the nonwoven structure.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Gert Claasen, Jill M. Martin, Ronald Wevers
  • Patent number: 8980772
    Abstract: A barrier fabric with a nano-fibrous layer for mechanical retention of organic substances formed by a sandwich structure containing a basic material from unwoven fabric of “spunbond” type with areal weight of 15 to 50 g/m2 to which at least one nano-fibrous layer is arranged, selected from hydrophilic polymer, a hydrophobic polymer, or in the case of double-layer arrangement, a combination of the hydrophilic polymer in one layer and the hydrophobic polymer in the other layer. The nano-fibrous layer is equipped with a protective covering layer, and the individual layers of the sandwich are connected to each other. The nano-fibrous layer has an organic polymer material with areal weight of 0.05 to 0.3 g/m2 and thickness from 90 to 150 nm. The covering layer is selected from an unwoven fabric of “spunbond” type, “meltblown” type, cotton textile and/or a mixture of cotton and polyester.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: March 17, 2015
    Assignee: Ceska Vcela s.r.o.
    Inventor: Miroslav Kubin
  • Patent number: 8962501
    Abstract: Nonwoven web products containing sub-micron fibers, and more specifically nonwoven web products having sub-micron fibers formed by fibrillation of polymer films, and nonwoven materials and articles incorporating them, and methods of producing these products.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: February 24, 2015
    Assignee: Polymer Group, Inc.
    Inventors: Michael H. Johnson, Timothy Krause, Michael W. Hayes, Rajeev Chhabra, Savas Aydore, Olaf Erik Alexander Isele, Han Xu
  • Publication number: 20150030797
    Abstract: Provided is an adhesive tape including: a substrate; and an adhesive layer laminated on one surface or both surfaces of the substrate, wherein one or both of the substrate and the adhesive layer are produced in a nano-web form in which fiber strands are captured by a spinning method. Thus, the adhesive tape can be made thin, and an adhesive strength can be improved. In addition, the adhesive tape can be precisely attached on a corrugated surface. When the adhesive tape attached between components is separated from the components, the adhesive layers can be prevented from remaining on the surfaces of the components.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 29, 2015
    Inventors: In Yong Seo, Seung Hoon Lee, Yong Sik Jung, Yun Mi So
  • Patent number: 8927443
    Abstract: A biodegradable nonwoven laminate is provided. The laminate comprises a spunbond layer formed from substantially continuous filaments that contain a first aliphatic polyester having a melting point of from about 50° C. to about 160° C. The meltblown layer is formed from microfibers that contain a second aliphatic polyester having a melting point of from about 50° C. to about 160° C. The first aliphatic polyester, the second aliphatic polyester, or both have an apparent viscosity of from about 20 to about 215 Pascal-seconds, as determined at a temperature of 160° C. and a shear rate of 1000 sec-1. The first aliphatic polyester may be the same or different than the second aliphatic polyester.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: January 6, 2015
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jayant Chakravarty, Vasily Topolkaraev, Ross T. Kaufman, Stephen Avedis Baratian, Jared L. Martin
  • Publication number: 20150005727
    Abstract: A water-absorbent sheet structure (10) including a structure in which an absorbent layer (13) containing a water-absorbent resin (12) and an adhesive (11) is sandwiched with nonwoven fabrics from an upper side and a lower side of the absorbent layer, the water-absorbent sheet structure (10) comprising (1) an upper nonwoven fabric (14) which is a water-permeable nonwoven fabric having a water permeation rate of 10 s or less; and (2) a lower nonwoven fabric (15) which is a water-retaining nonwoven fabric having an amount of water absorbed of 250 g/m2 or more. The water-absorbent sheet structure (10) of the present invention is thin and is capable of sufficiently exhibiting water-absorbent capacities such as fast liquid permeability, a small amount of liquid re-wet, and a small amount of liquid leakage.
    Type: Application
    Filed: December 13, 2012
    Publication date: January 1, 2015
    Applicant: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Hideki Matsushita, Junichi Takatori, Junichi Maruo, Kana Kudo
  • Publication number: 20140378017
    Abstract: A method for making nonwoven fabrics of fibers comprising one or more primary polypropylenes having a molecular weight distribution of less than 3.5 and a melt flow rate within the range from 5 to 500 dg/min, the fibers having an average diameter of less than 20 ?m, or a denier (g/9000 m) of less than 2.0, thus forming propylene-based fabrics. The propylene-based fabrics may have a MD Tensile Strength (WSP 110.4 (05)) of greater than 20 N/5 cm when calendered at a temperature within the range from 110 to 150° C. Also, the fabrics may have a CD Tensile Strength (WSP 110.4 (05)) of greater than 10 N/5 cm when calendered at a temperature within the range from 110 to 150° C. The fabrics are preferably meltspun, and in particular may be spunbond fabrics.
    Type: Application
    Filed: September 9, 2014
    Publication date: December 25, 2014
    Inventors: William M. Ferry, Smita Kacker, Olivier J. Georjon
  • Patent number: 8852713
    Abstract: Materials and methods are provided for producing preform materials for impact-resistant composite materials suitable for liquid molding. Interlayers formed of nonwoven, continuous fibers, such as spunbonded, spunlaced, or mesh fabric, are introduced between non-crimped layers of unidirectional reinforcing fibers to produce a preform for use in liquid-molding processes to produce a composite member. Curing of the preform provides increased impact resistance by increasing the amount of energy required to propagate localized fractures due to impact.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: October 7, 2014
    Assignee: The Boeing Company
    Inventor: Thomas Karl Tsotsis
  • Publication number: 20140255672
    Abstract: Described herein is a meltspun laminate comprising two or more layers of meltspun fabrics, wherein layers that are adjacent to one another are in situ entangled with one another to define an interfacial region of mixed fibers between the layers. Also described herein is a method of making a meltspun in situ laminate comprising simultaneously meltspinning two or more polymer melts adjacent to one another to form adjacent fabrics, wherein layers that are adjacent to one another are in situ entangled with one another to form an interfacial region of mixed fibers between the layers. Also described herein is a meltspinning apparatus comprising one or more dies, each die comprising two or more meltspinning zones, wherein each zone comprises a plurality of nozzles that are fluidly connected to the corresponding zone, and wherein each zone is fluidly connected to a melt extruder.
    Type: Application
    Filed: April 21, 2014
    Publication date: September 11, 2014
    Inventor: Alistair Duncan Westwood
  • Publication number: 20140248811
    Abstract: The instant invention provides nonwoven fabrics and staple or binder fibres prepared from an ethylene-based polymer having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.930 to 0. 970 g/cm3, a melt index (12) in the range of from 15 to 30 or from 10 to 50 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 2 to 3.5, and a molecular weight distribution (Mz/Mw) in the range of from less than 2.
    Type: Application
    Filed: October 4, 2012
    Publication date: September 4, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Jacquelyn A. Degroot, Gert J. Claasen, Selim Bensason, Mehmet Demirors, Thor Gudmundsson, Jason C. Brodil
  • Patent number: 8809213
    Abstract: A textile applicator for application of a sanitizing and/or disinfecting solution to a surface. The applicator incorporates a plurality of direct spun polyester microfiber yarns to define a textile surface which does not bind or inactivate quaternary ammonium compounds, chlorine-based or peracetic and/or other peroxygen based sanitizing and/or disinfecting agents. Thus, the sanitizing and/or disinfecting agent is readily released to the surface being treated without any requirement of pre-loading surface binding sites or applying a charge-modifying surface treatment.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 19, 2014
    Assignee: Tietex International, Ltd
    Inventors: Martin Wildeman, David R. Harry, Jr., Michelis Hardegree, Lori S. Sears
  • Publication number: 20140216478
    Abstract: Provided are a multi-layered nonwoven fabric, comprising: an outer layer formed of a spunlaced nonwoven fabric including at least one of a bamboo fiber and a polyethyleneterephthalate (PET)-based fiber; a middle layer formed of a melt blown nonwoven fabric; and an inner layer formed of a melt blown nonwoven fabric or a melt blown-spunlaced nonwoven fabric, wherein the outer layer comprises an allergen inactivation agent; a method of manufacturing the same; and an anti-allergic product including the same. The multi-layered nonwoven fabric can exhibit good air permeability and weatherability, and even more, can inactivate an allergen and thus exhibit anti-allergic, anti-bacterial and anti-viral effects.
    Type: Application
    Filed: June 19, 2012
    Publication date: August 7, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Hae-Dong Park, Junseok Lee
  • Publication number: 20140155854
    Abstract: This invention relates to polypropylene fibers and fabrics containing polypropylene fibers, the fibers comprising propylene polymers comprising at least 50 mol % propylene, said polymers having: a) a melt flow rate (MFR, ASTM 1238, 230° C., 2.16 kg) of about 10 dg/min to about 25 dg/min; b) a dimensionless Stress Ratio/Loss Tangent Index R2 [defined by Eq. (8)] at 190° C. from about 1.5 to about 30; c) an onset temperature of crystallization under flow, Tc,rheol, (as determined by SAOS rheology, 190° C., 1° C./min, where said polymer has 0 wt % nucleating agent present), of at least about 123° C.; d) an average meso run length determined by 13C NMR of at least about 55 or higher; and e) optionally, a loss tangent, tan ?, [defined by Eq. (2)] at an angular frequency of 0.1 rad/s at 190° C. from about 14 to about 70.
    Type: Application
    Filed: December 3, 2012
    Publication date: June 5, 2014
    Applicants: ExxonMobil Chemical Patents Inc.
    Inventors: Jeanne Marie MacDonald, Antonios K. Doufas, Jerome Sarrazin, William Michael Ferry, Rahul Ravindra Kulkarni, Derek Wade Thurman, Cynthia Ann Mitchell, Detlef Frey, Peter Schlag, Hans-Georg Geus, Claudio Cinquemani
  • Patent number: 8741083
    Abstract: A method for producing an elastically stretchable laminate having at least three layers, the method including the steps of: a) producing a first laminate having a first non-elastic fibrous nonwoven web and an elastic film; b) activating the first laminate by incremental stretching in at least one activation direction to render the first laminate elastically stretchable; c) stretching the activated first laminate to 10-200% in the activation direction; and d) laminating the stretched first laminate to a second non-elastic nonwoven web. An elastically stretchable laminate produced in accordance with the method is also disclosed.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: June 3, 2014
    Assignee: SCA Hygiene Products AB
    Inventors: Margareta Wennerbäck, Jan Wästlund-Karlsson, Elisabeth Lakso
  • Publication number: 20140127461
    Abstract: A product that includes a soft nonwoven web is disclosed. The nonwoven web includes a first fibrous layer made of a first composition and a second fibrous layer made of a second composition. The second composition is different from the first composition.
    Type: Application
    Filed: October 21, 2013
    Publication date: May 8, 2014
    Applicant: The Procter & Gamble Company
    Inventors: Han XU, John Ferrer, Antonius Lambertus Debeer, Zdenek Mecl, Frantisek Klaska, Jiri Kummer, Pavlina Kasparkova, Jaroslav Kohut
  • Publication number: 20140127460
    Abstract: A product that includes a soft nonwoven web is disclosed. The nonwoven web includes a first fibrous layer made of a first composition and a second fibrous layer made of a second composition. The second composition is different from the first composition.
    Type: Application
    Filed: October 21, 2013
    Publication date: May 8, 2014
    Applicant: The Procter & Gamble Company
    Inventors: Han Xu, John Ferrer, Antonius Lambertus Debeer, Zdenek Mecl, Frantisek Klaska, Jiri Kummer, Pavlina Kasparkova, Jaroslav Kohut
  • Publication number: 20140127459
    Abstract: A product that includes a soft nonwoven web is disclosed. The nonwoven web includes a first fibrous layer made of a first composition and a second fibrous layer made of a second composition. The second composition is different from the first composition.
    Type: Application
    Filed: October 21, 2013
    Publication date: May 8, 2014
    Applicant: The Procter & Gamble Company
    Inventors: Han XU, John Ferrer, Antonius Lambertus Debeer, Zdenek Mecl, Frantisek Klaska, Jiri Kummer, Pavlina Kasparkova, Jaroslav Kohut
  • Publication number: 20140087618
    Abstract: A nonwoven fabric comprising a meltspun fibre of a lignin compound. Also claimed a laminated fabric comprising the nonwoven fabric, a nonwoven fabric product comprising the nonwoven fabric, a structured multicomponent fibre comprising a lignin compound, a web comprising a meltspun fibre of a lignin compound and a method of producing a nonwoven fabric by forming a web of meltspun fibre comprising a lignin compound and bonding at least a portion of the fibre in the web to form the nonwoven fabric.
    Type: Application
    Filed: October 19, 2011
    Publication date: March 27, 2014
    Applicant: FITESA NONWOVEN, INC.
    Inventors: David Dudley Newkirk, Juergen Friedrich Rudolph, Helmut Hartl
  • Patent number: 8668975
    Abstract: An in situ compositionally modulated meltspun fabric and method for making the same. The meltspun fabric has at least one layer comprising a plurality of discrete regions of fiber. At least two discrete regions of fiber are inelastic or extensible and at least one discrete region of fiber is elastic or extensible. The layer is compositionally modulated in the cross direction.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: March 11, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Alistair D. Westwood
  • Publication number: 20140065914
    Abstract: A method for forming a biodegradable aliphatic-aromatic copolyester suitable for use in fibers is provided. In one embodiment, for example, an aliphatic-aromatic copolyester is melt blended with an alcohol to initiate an alcoholysis reaction that results in a copolyester having one or more hydroxyalkyl or alkyl terminal groups. By selectively controlling the alcoholysis conditions (e.g., alcohol and copolymer concentrations, catalysts, temperature, etc.), a modified aliphatic-aromatic copolyester may be achieved that has a molecular weight lower than the starting aliphatic-aromatic polymer. Such lower molecular weight polymers also have the combination of a higher melt flow index and lower apparent viscosity, which is useful in a wide variety of fiber forming applications, such as in the meltblowing of nonwoven webs.
    Type: Application
    Filed: November 6, 2013
    Publication date: March 6, 2014
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: James H. Wang, Aimin He
  • Publication number: 20140062126
    Abstract: A composite sheet material and method for forming the same is provided that includes a substrate, a matrix, and a cover sheet. The substrate has a first face surface, a second face surface, and a plurality of edges, and includes a thermoplastic material. The matrix is attached to the substrate. The matrix includes a support component having a first melting point, and a thermoplastic component having a second melting point. The second melting point is less than the first melting point. The cover sheet imparts one or more surface characteristics to the composite sheet material during thermo-pressure formation of the composite sheet material.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: XAMAX INDUSTIRES, INC.
    Inventors: Martin Weinberg, James Yuan, Robert Markowski
  • Patent number: 8664128
    Abstract: An elastic laminate for use as a tear resistant diaper side panel. The elastic laminate comprises an elastic substrate bonded to at least one layer of a tensioned spunbond nonwoven web comprising thermoplastic filaments comprising at least about 10% by weight polyethylene. The laminate is then incrementally stretched in the transverse direction to provide a service stretch greater than 100% and a strength ratio greater than 0.35. In one embodiment, the elastic substrate is bonded between the tensioned nonwoven webs by point bonding or hot melt adhesives.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: March 4, 2014
    Assignee: Advantage Creation Enterprise LLC
    Inventor: James W. Cree
  • Patent number: 8658548
    Abstract: One embodiment of the present invention is a nonwoven fabric comprising a support web and a fibrous barrier web, having a hydrohead of at least about 145 cm and a Frazier permeability of at least about 0.3 m3/m2-min.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: February 25, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: Michael Allen Bryner
  • Publication number: 20140050894
    Abstract: There is disclosed a laminated, nonwoven fabric and a process for producing such a laminated, nonwoven fabric having desirable fluid holding and fluid release characteristics. The process provides that two sheets of meltblown fiber fabric are produced on forming wire assemblies, cooled at a cooling area, and are then laminated on opposite sides of a sheet of spunbonded fibers using to form the laminated, nonwoven fabric.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 20, 2014
    Inventors: Joseph D. Wahlquist, Michael E. Huss
  • Patent number: 8652977
    Abstract: The present invention provides a heat-resistant nonwoven fabric wherein the nonwoven fabric is formed from a poly(phenylene sulfide) fiber, and 30% by weight or more of the poly(phenylene sulfide) fiber has a crystallinity of 25 to 50%. Moreover, the properties of the heat-resistant nonwoven fabric can be further improved by making the nonwoven fabric have a multilayer structure in which layers composed of a poly(phenylene sulfide) filamentary fiber and layers composed of a poly(phenylene sulfide) fine fiber are stacked and integrated.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: February 18, 2014
    Assignee: Asahi Kasei Fibers Corporation
    Inventors: Toshiyuki Shimizu, Masahiko Maeda
  • Publication number: 20140018758
    Abstract: A stretchable laminate for an absorbent article comprises a nonwoven substrate comprising a layer of spunbond fibers. A plurality of the spunbond fibers are formed from a composition comprising a thermoplastic polymer and an inorganic filler. The inorganic filler is present in the nonwoven substrate at a level of between about 1% and about 20% by weight of the nonwoven substrate. The stretchable laminate comprises an elastomeric material joined to a side of the nonwoven substrate.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 16, 2014
    Inventors: Lalith JAYASINGHE, Audra MATHEWS, Jeanphilippe AUTRAN, Antonius Lambertus De BEER, Brian UDENGAARD
  • Publication number: 20130344764
    Abstract: A method for forming a biodegradable aliphatic polyester suitable for use in fibers is provided. In one embodiment, for example, an aliphatic polyester is melt blended with an alcohol to initiate an alcoholysis reaction that results in a polyester having one or more hydroxyalkyl or alkyl terminal groups. By selectively controlling the alcoholysis conditions (e.g., alcohol and polymer concentrations, catalysts, temperature, etc.), a modified aliphatic polyester may be achieved that has a molecular weight lower than the starting aliphatic polyester. Such lower molecular weight polymers also have the combination of a higher melt flow index and lower apparent viscosity, which is useful in a wide variety of fiber forming applications, such as in the meltblowing of nonwoven webs.
    Type: Application
    Filed: August 28, 2013
    Publication date: December 26, 2013
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Aimin He, James H. Wang
  • Patent number: 8598052
    Abstract: A highly air-permeable and water-resistance sheet according to the present invention includes a hydrophobic non-woven fabric layer having 100 mm H2O or more of water pressure resistance and a fine cellulose fiber layer layered on the hydrophobic non-woven fabric layer, and a water repellent layer is layered on either surface of the highly air-permeable and water-resistance sheet. A highly air-permeable and water-resistance sheet composite according to the present invention includes the highly air-permeable and water resistance sheet and another non-woven fabric layered onto the water-repellant layer.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: December 3, 2013
    Assignee: Daio Paper Corporation
    Inventors: Migaku Suzuki, Akira Kawase
  • Publication number: 20130237111
    Abstract: Fabricated articles are disclosed which comprise a polypropylene impact copolymer. The propylene impact copolymer composition comprises from 60 to 90 percent by weight of the impact copolymer composition of a matrix phase, which can be a homopolymer polypropylene or random polypropylene copolymer having from 0.1 to 7 mol percent of units derived from ethylene or C4-C10 alpha olefins. The propylene impact copolymer composition also comprises from 10 to 40 percent by weight of the impact copolymer composition of a dispersed phase, which comprises a propylene/alpha-olefin copolymer having from 6 to 40 mol percent of units derived from ethylene or C4-C10 alpha olefins, wherein the dispersed phase has a comonomer content which is greater than the comonomer content in the matrix phase. The propylene impact copolymer composition is further characterized by having the ratio of the matrix MFR to the dispersed phase MFR being 1.2 or less.
    Type: Application
    Filed: July 19, 2011
    Publication date: September 12, 2013
    Applicant: BRASKEM AMERICA, INC.
    Inventors: Alechia Crown, Gert Claasen, Jacquelyn Degroot, Thor Gudmundsson, Charles Crosby, Li-Min Tau, John Kaarto
  • Patent number: 8501646
    Abstract: A non-woven fabric laminate that is excellent in strechability, flexibility, and bulkiness, and that is less sticky and is suitable for a mechanical fastening female material. The non-woven fabric laminate includes a mixed fiber spunbonded non-woven fabric and a non-woven fabric comprising a crimped fiber that is laminated on at least one face of the mixed fiber spunbonded non-woven fabric, which includes a continuous fiber of a thermoplastic elastomer (A) in the range of 10 to 90% by weight and a continuous fiber of a thermoplastic resin (B) in the range of 90 to 10% by weight (where (A)+(B)=100% by weight). The non-woven fabric laminate can be suitably used for a sanitary material and other materials. More specifically, there can be mentioned for instance an absorbent article such as a disposable diaper and a menstrual sanitary product as a sanitary material.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 6, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shigeyuki Motomura, Kenichi Suzuki, Kazuhiko Masuda, Hisashi Morimoto, Naosuke Kunimoto
  • Patent number: 8415263
    Abstract: A composite material as a sheet material is described, being relatively cheap, most useful as a raw material of a sanitary product or the like, such as underwear, dust-proof mask or dispensable paper diaper, etc., and good in processability, stretchability, gas-permeability, softness, and touch. The composite material is formed by laminating a stretchable layer and a conjugate spunbonded nonwoven fabric including conjugate fibers including a low-melting-point component and a high-melting-point component. The conjugate fibers are partially bonded to each other by thermocompression, wherein each bonded portion has fine folded structures including alternate hill and valley regions in the CD, and the distance between neighboring hills is 100-400 ?m in average. The conjugate spunbonded nonwoven fabric exhibits stretchability through the spread of the fine folded structures, and has, at 5% elongation, a CD-strength of 0.1 N/5 cm or less and an MD/CD strength ratio of 200 or more.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 9, 2013
    Assignees: JNC Corporation, JNC Fibers Corporation
    Inventors: Toshikatsu Fujiwara, Taiju Terakawa
  • Publication number: 20130059497
    Abstract: In accordance with certain embodiments of the present disclosure, a process for forming a multilayered electrospun composite is provided. The process includes forming a dispersion of polymeric nanofibers, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs. Nanofibers from the dispersion are electrospun onto a first ePTFE layer. A second ePTFE layer is applied onto the nanofibers to form a composite structure. The composite structure is heated.
    Type: Application
    Filed: August 2, 2012
    Publication date: March 7, 2013
    Inventors: Bruce L. Anneaux, Robert L. Ballard, David P. Gamer
  • Publication number: 20130040524
    Abstract: The invention according to the present invention relates to an intermediate layer (1) of friction decreasing material placed between two layers (2, 3). The intermediate layer (1) is adapted to create a sliding movement between the layers (2, 3) when a force (K) is applied and a tangential force component (KT) shears the layers. The friction decreasing material comprises fibers (F).
    Type: Application
    Filed: January 11, 2011
    Publication date: February 14, 2013
    Applicant: MIPS AB
    Inventors: Peter Halldin, Anders Bergner, Kay Grinneback
  • Patent number: 8308833
    Abstract: This invention relates to a nonwoven fabric for filters, in which a melt blown nonwoven fabric formed of polybutylene terephthalate or polypropylene terephthalate fibers with an average fiber diameter of 1 to 8 ?m and a spunbonded nonwoven fabric formed of polyester-based fibers with an average fiber diameter of 10 to 30 ?cm are laminated for integration.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: November 13, 2012
    Assignee: Toray Industries, Inc.
    Inventors: Nobuyuki Takano, Masashi Ito, Makoto Nishimura
  • Publication number: 20120276797
    Abstract: A barrier fabric with a nano-fibrous layer for mechanical retention of organic substances, wherein it is formed by a sandwich structure containing a basic material from unwoven fabric of “spunbond” type with areal weight of 15 to 50 g/m2 to which at least one nano-fibrous layer is arranged, selected from the group comprising a hydrophilic polymer, a hydrophobic polymer, or in the case of double-layer arrangement, a combination of the hydrophilic polymer in one layer and the hydrophobic polymer in the other layer, and where the nano-fibrous layer is equipped with a protective covering layer, and where the individual layers of the sandwich are connected to each other, and where the nano-fibrous layer used as a barrier against penetration of allergens produced by the dust mites through the upholstery material of mattresses, pillows, bedclothes or soft furnishings, is created by an organic polymer material with areal weight of 0.05 to 0.
    Type: Application
    Filed: July 1, 2011
    Publication date: November 1, 2012
    Applicant: CESKA VCELA s.r.o.
    Inventor: Miroslav KUBÍN
  • Publication number: 20120227362
    Abstract: The present invention refers to a sterile barrier system composed of: a minimum of one external 100% polypropylene SMS sheet with hydrophobic treatment (water repellent), providing a microbial barrier for bacterial and viral filtration efficiency (BFE and VFE), which meets the requirements of non aqueous propagation of microorganisms or recontamination of the packaging; and a minimum of one internal 100% polypropylene SMS sheet with hydrophilic treatment, that absorbs the excess vapor from inside the packaging and dissipates it by controlled porosity in the autoclave vacuum, under high temperature. This combined hydrophilic and hydrophobic system enhances effectively the performance of the drying cycle in the autoclave, obtaining dry packaging after the sterilization cycle, eliminating the risks of recontamination, preserving the sterility of the packages and reducing costs in the operation.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 13, 2012
    Inventor: George Haase LIMA
  • Patent number: 8246882
    Abstract: Materials and methods are provided for producing preform materials for impact-resistant composite materials suitable for liquid molding. Interlayers formed of nonwoven, continuous fibers, such as spunbonded, spunlaced, or mesh fabric, are introduced between non-crimped layers of unidirectional reinforcing fibers to produce a preform for use in liquid-molding processes to produce a composite member. Curing of the preform provides increased impact resistance by increasing the amount of energy required to propagate localized fractures due to impact.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: August 21, 2012
    Assignee: The Boeing Company
    Inventor: Thomas Karl Tsotsis
  • Publication number: 20120208422
    Abstract: The present invention provides a spunbond nonwoven fabric made of a specific crystalline resin composition having a melt flow rate of 25 to 80 g/10 min and a melting endotherm ?H of 65 to 100 J/g. More particularly, the invention provides a polypropylene spunbond nonwoven fabric having a very small fiber diameter and providing an excellent feel to the touch, and a polypropylene spunbond nonwoven fabric exhibiting high softness.
    Type: Application
    Filed: September 13, 2010
    Publication date: August 16, 2012
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yohei Koori, Tomoaki Takebe, Yutaka Minami, Toshitaka Kanai
  • Patent number: 8216411
    Abstract: Disclosed is a nonwoven web material comprising thermoplastic fibers or filaments and a method of manufacture thereof. The web material has properties desirable for use on machinery having conventional heat sealing stations. Also, disclosed is a nonwoven infusion web material comprising thermoplastic fibers or filaments and a method of manufacture thereof. The infusion web material has properties desirable for use in making infusion packages.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 10, 2012
    Assignee: Ahlstrom Nonwovens LLC
    Inventors: Helen Viazmensky, John M. Allen, Richard T. Giovannoni
  • Publication number: 20120164906
    Abstract: A laminate is generally provided having alcohol repellency properties. In one particular embodiment, the laminate includes a meltblown web bonded to a spunbond web (e.g., a SM laminate, a SMS laminate, a SMMS laminate, etc.). A fluorinated polymeric coating is attached to the surface of the spunbond web (e.g., grafted). The fluorinated polymeric coating comprises a perfluoroalkyl(alkyl) (meth)acrylate monomer polymerized on the surface of the spunbond web via exposure to a low frequency energy source. The perfluoroalkyl(alkyl) (meth)acrylate monomer has a perfluoroalkyl side groups comprising —(CF2)z—F, where z is an integer from 1 to 6. The laminate has an alcohol repellency of greater than 80%.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 28, 2012
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Ali Yahiaoui, Anthony S. Spencer, Linda Connor Sledge, John Joseph Lassig, Eric Edward Lennon
  • Patent number: 8178189
    Abstract: A laminate usable as a diaper closure has a pair of generally contiguous outer fleece layers having longitudinally extending and parallel outer edges and a core layer of foil of LP or LLP polyethylene extending between the outer layers substantially a full width of the outer layers between the edges. The foil has a thickness between 5 ?m and 20 ?m. Bonds are provided between the core layer and each of the outer layers. The laminate has regions activated by stretching and in which the laminate is semielastric, and unactivated regions in which the laminate is not stretchy.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: May 15, 2012
    Assignee: Nordenia Technologies GmbH
    Inventor: Marcus Schoenbeck
  • Publication number: 20120097353
    Abstract: A substrate for an endless belt in a papermaking machine comprising a plurality of preformed layers coated or impregnated with a polymeric or rubber material. Each preformed layer may be a textile material. At least one layer contains a matrix of preformed reinforcing components. The individual layers are first coated with a polymer resin or rubber material and then combined/stacked and cured/bonded to form the substrate of the belt.
    Type: Application
    Filed: January 3, 2012
    Publication date: April 26, 2012
    Applicant: Albany International Corp.
    Inventor: Keith FITZPATRICK
  • Patent number: 8148279
    Abstract: The invention provides durable nonwoven fabrics comprising staple fibers. Methods of preparing durable nonwoven fabrics based on staple fibers are also provided. The methods can include the steps of at least one of needle punching and hydroentangling. The durable nonwoven fabric can be subjected to additional bonding techniques, such as resin bonding and/or thermal bonding. The durable nonwoven fabrics of the invention provide improved durability over conventional nonwoven fabrics. Further advantages of the inventive nonwoven fabrics include maintaining the smooth surface qualities of the fabric and desirable feel of the fabric even with the enhanced durability. The inventive nonwoven fabrics can also be subjected to additional post-processing techniques that conventional nonwoven fabrics would otherwise be unable to withstand. Further, inks and/or dyes can more readily become adhered to the smooth nature of the surfaces of the inventive durable nonwoven fabrics.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: April 3, 2012
    Assignee: North Carolina State University
    Inventors: Nagendra Anantharamaiah, Behnam Pourdeyhimi
  • Patent number: 8129298
    Abstract: A nonwoven fabric laminate possesses excellent elasticity, softness, water resistance, fuzz resistance and curl resistance, and has less stickiness. The nonwoven fabric laminate includes at least one meltblown nonwoven fabric layer and mixed-fiber spunbonded nonwoven fabric layers on both surfaces of the at least one meltblown nonwoven fabric layer, the mixed-fiber spunbonded nonwoven fabric layers each comprising mixed fibers including 10 to 90 wt % of continuous fibers of a thermoplastic elastomer (A) and 90 to 10 wt % of continuous fibers of a thermoplastic resin (B) other than the thermoplastic elastomer (A) ((A)+(B)=100 wt %).
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 6, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shigeyuki Motomura, Kenichi Suzuki, Naosuke Kunimoto
  • Publication number: 20120043272
    Abstract: An object of the present invention is to provide a composite membrane support composed of a dry process thermoplastic resin filaments nonwoven fabric having a significantly high uniformity to enable formation of a porous layer free from strike-through or a defect such as pinhole at the film formation, producing no skin layer defect at the formation of a skin layer, and being excellent in the mechanical strength and dimensional stability at high temperatures, and a high-performance composite membrane and a composite membrane element each using the composite membrane support. The composite membrane support of the present invention is a laminate dry process thermoplastic resin filaments nonwoven fabric comprising three or more layers containing at least a meltblown fiber layer as an interlayer and spunbond fiber layers on both sides of the interlayer, wherein the average value of air flow resistance is from 2.0 to 30.
    Type: Application
    Filed: April 28, 2010
    Publication date: February 23, 2012
    Inventors: Minoru Yoshida, Ikuo Ueno, Norihisa Matsuo, Hirotoshi Ishizuka, Hiroki Fujioka, Mieko Nishi
  • Publication number: 20120045956
    Abstract: Fabricated articles are disclosed which comprise a polypropylene impact copolymer. The propylene impact copolymer composition comprises from 60 to 90 percent by weight of the impact copolymer composition of a matrix phase, which can be a homopolymer polypropylene or random polypropylene copolymer having from 0.1 to 7 mol percent of units derived from ethylene or C4-C10 alpha olefins. The propylene impact copolymer composition also comprises from 10 to 40 percent by weight of the impact copolymer composition of a dispersed phase, which comprises a propylene/alpha-olefin copolymer having from 6 to 40 mol percent of units derived from ethylene or C4-C10 alpha olefins, wherein the dispersed phase has a comonomer content which is greater than the comonomer content in the matrix phase. The propylene impact copolymer composition is further characterized by having the ratio of the matrix MFR to the dispersed phase MFR being 1.2 or less.
    Type: Application
    Filed: August 19, 2010
    Publication date: February 23, 2012
    Applicant: Dow Global Technologies Inc.
    Inventors: Li-Min Tau, Gert J. Claasen, Charles R. Crosby, III, Alechia Crown, John Kaarto
  • Publication number: 20120003372
    Abstract: An absorbent food pad is disclosed having nonwoven top and bottom layers with an equal percentage surfactant by weight. The pad provides liquid strikethrough and absorbency without drying a food product, regardless of orientation of the pad when placed on a food tray.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 5, 2012
    Inventors: Sayandro VERSTEYLEN, Ronald JENSEN, Richard BEU