Including Strand Or Fiber Material Which Is A Monofilament Composed Of Two Or More Polymeric Materials In Physically Distinct Relationship (e.g., Sheath-core, Side-by-side, Islands-in-sea, Fibrils-in-matrix, Etc.) Or Composed Of Physical Blend Of Chemically Different Polymeric Materials Or A Physical Blend Of A Polymeric Material And A Filler Material Patents (Class 442/361)
  • Publication number: 20130252500
    Abstract: A non-woven fabric composite containing coir fibers and a method for producing such composites. The non-woven fabric composite is comprised of coir fibers, which are large diameter, lignin-rich fibers, with a high viscous flow temperature and a high degradation temperature combined with fibers made of a thermoplastic polymer with a lower viscous flow temperature such as polypropylene (“PP”), polyethylene (“PE”), polylactic acid (“PLA”), and polyester (“PET”) or mixtures thereof. A hot-pressed non-woven fabric composite material prepared from the non-woven fabric composite.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: BAYLOR UNIVERSITY
    Inventors: Walter BRADLEY, David Stanton GREER
  • Patent number: 8541323
    Abstract: A splittable conjugate fiber comprising a polyester segment and a polyolefin segment, wherein the splittable conjugate fiber comprises two or more parts of the polyester segment extending from a center of the fiber toward an outer edge of the fiber in a cross-sectional configuration perpendicular to its longitudinal direction, in which at least one of the two or more parts of the polyester segment extending from the center of the fiber toward the outer edge of the fiber is exposed at the outer edge of the fiber and at least one of the two or more parts of the polyester segment extending from the center of the fiber toward the outer edge of the fiber is unexposed at the outer edge of the fiber.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: September 24, 2013
    Assignees: ES Fibervisions Co., Ltd., ES Fibervisions Hong Kong Limited, ES Fibervisions LP, ES Fibervisions APS
    Inventors: Yukiharu Shimotsu, Minoru Miyauchi, Kazuyuki Sakamoto
  • Patent number: 8518841
    Abstract: To produce a nonwoven fabric comprising a conjugated fiber comprising a plurality of resins which are different in thermal shrinkage and form a phase separation structure. In the nonwoven fabric, the conjugated fibers are arranged in a direction approximately parallel to a surface direction of the nonwoven fabric and crimped. In addition, the conjugated fibers have an average curvature radius of fiber crimp of 20 to 200 ?m and the crimps are distributed approximately uniformly in a thickness direction of the nonwoven fabric. The nonwoven fabric is substantially free from an adhesive agent. In the nonwoven fabric, each fiber is substantially not melt-bonded to another. The conjugated fiber may comprise a polyalkylene arylate-series resin and a modified polyalkylene arylate-series resin and have a side-by-side or eccentric sheath-core form.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: August 27, 2013
    Assignee: Kuraray Co., Ltd.
    Inventors: Tomoaki Kimura, Yasuro Araida, Toru Ochiai, Sumito Kiyooka
  • Patent number: 8513147
    Abstract: A water non-dispersible polymer microfiber is provided comprising at least one water non-dispersible polymer wherein the water non-dispersible polymer microfiber has an equivalent diameter of less than 5 microns and length of less than 25 millimeters. A process for producing water non-dispersible polymer microfibers is also provided, the process comprising: a) cutting a multicomponent fiber into cut multicomponent fibers; b) contacting a fiber-containing feedstock with water to produce a fiber mix slurry; wherein the fiber-containing feedstock comprises cut multicomponent fibers; c) heating the fiber mix slurry to produce a heated fiber mix slurry; d) optionally, mixing the fiber mix slurry in a shearing zone; e) removing at least a portion of the sulfopolyester from the multicomponent fiber to produce a slurry mixture comprising a sulfopolyester dispersion and water non-dispersible polymer microfibers; and f) separating the water non-dispersible polymer microfibers from the slurry mixture.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: August 20, 2013
    Assignee: Eastman Chemical Company
    Inventors: Rakesh Kumar Gupta, Daniel William Klosiewicz, Melvin Glenn Mitchell
  • Patent number: 8501647
    Abstract: The present invention provides high strength nonwoven wipe materials and the process of making the materials. The high strength nonwoven wipe materials contain cellulosic fibers, synthetic fibers, or mixtures thereof, with bicomponent fibers and optionally, a binder. The present invention provides a high strength, high elongation, reduced stiffness nonwoven wipe material with superior tensile strength.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: August 6, 2013
    Assignee: Buckeye Technologies Inc.
    Inventors: Jeffrey Scott Hurley, Brian E. Boehmer, Alan Jeffrey Campbell, Jerry Michael Moore, Douglas William Vercauteren, Heather Fielder Horton, Barry George Burgess
  • Patent number: 8501317
    Abstract: Cloth, in which air permeability is variable by energization, includes: a fibrous object composed of composite fibers, each of the composite fibers including: an electrical-conductive polymeric material; and a material different from the electrical-conductive polymeric material, the different material being directly stacked on the electrical-conductive polymeric material; and electrodes which are attached to the fibrous object, and energize the electrical-conductive polymeric material. Each of the composite fibers has a structure in which the material different from the electrical-conductive polymeric material is stacked on at least a part of a surface of the electrical-conductive polymeric material, or a structure in which either one of the electrical-conductive polymeric material and the material different from the electrical-conductive polymeric material penetrates the other material in a longitudinal direction.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: August 6, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Hiroaki Miura
  • 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: 8460790
    Abstract: The present invention provides an aggregate of nanofibers having less spread of single fiber fineness values that can be used in wide applications without limitation to the shape and the kind of the polymer, and a method for manufacturing the same. The present invention is an aggregate of nanofibers made of a thermoplastic polymer having single fiber fineness by number average in a range from 1×10?7 to 2×10?4 dtex and single fibers of 60% or more in fineness ratio have single fiber fineness in a range from 1×10?7 to 2×10?4 dtex.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: June 11, 2013
    Assignee: TORAY Industries, Inc.
    Inventors: Takashi Ochi, Akira Kishiro, Shuichi Nonaka
  • Publication number: 20130134088
    Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.
    Type: Application
    Filed: January 29, 2013
    Publication date: May 30, 2013
    Applicant: Trevira GmbH
    Inventor: Trevira GmbH
  • Patent number: 8444895
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: May 21, 2013
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8445391
    Abstract: A leather-like sheet composed of a microfine-fiber entangled body made of bundles of microfine fibers and an elastic polymer impregnated therein. The bundles of microfine fibers are composed of microfine monofibers having an average cross-sectional area of 0.1 to 30 ?m2 and have an average cross-sectional area of 40 to 400 ?m2. The bundles of microfine fibers exist in a density of 600 to 4000/mm2 on a cross section taken along the thickness direction of the microfine-fiber entangled body. The elastic polymer contains 30 to 100% by mass of a polymer of ethylenically unsaturated monomer. The polymer of ethylenically unsaturated monomer is composed of a soft component having a glass transition temperature (Tg) of less than ?5° C., a crosslinkable component, and optionally a hard component having a glass transition temperature (Tg) of higher than 50° C. and another component. The polymer of ethylenically unsaturated monomer is bonded to the microfine fibers in the bundles of microfine fibers.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: May 21, 2013
    Assignee: Kuraray Co., Ltd.
    Inventors: Kimio Nakayama, Tsuyoshi Yamasaki, Nobuo Takaoka, Jiro Tanaka
  • Patent number: 8444896
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: May 21, 2013
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Publication number: 20130122772
    Abstract: A nonwoven fabric is provided having a plurality of semi-crystalline filaments that are thermally bonded to each other and are formed of the same polymer and exhibit substantially the same melting temperature. The fabric is produced by melt spinning an amorphous crystallizable polymer to form two components having different levels of crystallinity. During spinning, a first component of the polymer is exposed to conditions that result in stress-induced crystallization such that the first polymer component is in a semi-crystalline state and serves as the matrix or strength component of the fabric. The second polymer component is not subjected to stress induced crystallization and thus remains in a substantially amorphous state which bonds well at relatively low temperatures. In a bonding step, the fabric is heated to soften and fuse the binder component. Under these conditions, the binder component undergoes thermal crystallization so that in the final product, both polymer components are semi-crystalline.
    Type: Application
    Filed: January 11, 2013
    Publication date: May 16, 2013
    Applicant: FIBERWEB, INC.
    Inventor: Fiberweb, Inc.
  • Patent number: 8435908
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: May 7, 2013
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8420556
    Abstract: The subject matter disclosed herein relates generally to fabrics composed of micro-denier fibers wherein said fibers are formed as bicomponent fibrillated fiber. The energy is sufficient for fibrillating as well as entangling (bonding) the fibers. These fabrics can be woven or knitted and made from made from bicomponent islands in the sea fibers and filaments or can be nonwovens and formed by either spunbonding or through the use of bicomponent staple fibers formed into a web by any one of several means and bonded similarly to those used for the spunbonded filament webs.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: April 16, 2013
    Assignee: North Carolina State University
    Inventors: Behnam Pourdeyhimi, Nataliya V. Fedorova, Stephen R. Sharp
  • 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: 20130078419
    Abstract: The waterproof/breathable moisture transfer liner for a running and hiking shoe includes an inner liner selected from technically advanced fabrics which are carefully selected. A series of layers are provided outside the inner liner including foam material layers, breathable membranes, a supportive mesh or a moldable foam, and an outer shell fabric. The applicability of the liner to alpine, snowboard boots, cross country, hiking boots, protective gear and helmets, along with appropriate variations for each application.
    Type: Application
    Filed: November 26, 2012
    Publication date: March 28, 2013
    Applicant: Solid Water Holdings
    Inventor: Baychar
  • Patent number: 8389426
    Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: March 5, 2013
    Assignee: Trevira GmbH
    Inventors: Jörg Dahringer, Bernd Blech, Werner Stefani, Werner Grasser, Mehmet Demirors, Gert Claasen
  • Publication number: 20130023177
    Abstract: The present invention provides bicomponent fibers, a method of producing bicomponent fibers, nonwoven materials comprising one or more such bicomponent fibers, and a method for making such nonwoven materials. The bicomponent fibers according to the present invention comprise (a) a first component comprising a polymeric material selected from the group consisting of polypropylene, polyester, and polyamide; and (b) a second component comprising a polyethylene composition comprising less than or equal to 100 percent by weight of the units derived from ethylene; and less than 20 percent by weight of units derived from one or more ?-olefin comonomers; wherein the polyethylene composition has a density in the range of from 0.945 to 0. 965 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 1.70 to 3.5, a melt index (I2) in the range of from 0.2 to 150 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of from less than 2.5, vinyl unsaturation in the range of from less than 0.
    Type: Application
    Filed: February 2, 2011
    Publication date: January 24, 2013
    Applicant: Dow Blobal Technologies LLC
    Inventors: Gert J. Claasen, Angels Domenech, Thor Gudmundsson
  • Publication number: 20130023176
    Abstract: A non-woven fabric composite containing coir fibers and a method for producing such composites. The non-woven fabric composite is comprised of coir fibers, which are large diameter, lignin-rich fibers, with a high viscous flow temperature and a high degradation temperature combined with fibers made of a thermoplastic polymer with a lower viscous flow temperature such as polypropylene (“PP”), polyethylene (“PE”), polylactic acid (“PLA”), and polyester (“PET”) or mixtures thereof. A hot-pressed non-woven fabric composite material prepared from the non-woven fabric composite.
    Type: Application
    Filed: September 21, 2012
    Publication date: January 24, 2013
    Applicant: BAYLOR UNIVERSITY
    Inventor: BAYLOR UNIVERSITY
  • Publication number: 20130012092
    Abstract: A nonwoven web comprising bicomponent fibers. The fibers have continuous phases each of a first polyarylene sulfide (PAS) component and a polymer component. The polymer component may also be a second polyarylene sulfide. The first polyarylene sulfide component contains a tin or a zinc additive or both, and the first polyarylene sulfide component of any given fiber is at least partially exposed to the external surface of that fiber.
    Type: Application
    Filed: March 22, 2011
    Publication date: January 10, 2013
    Inventors: Joel M. Pollino, Lakshmi Krishnamurthy, Joachim C. Ritter, Robert John Duff, Yefim Brun, Zheng-Zheng Huang, Zuohong Yin
  • Patent number: 8314041
    Abstract: Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 20, 2012
    Assignee: Eastman Chemical Company
    Inventors: Rakesh Kumar Gupta, Scott Ellery George, Daniel William Klosiewicz, Kab Sik Seo, Coralie McKenna Fleenor, Allen Lynn Crain
  • Patent number: 8309478
    Abstract: A consolidated fibrous structure including a multiplicity of fibrous layers. Each fibrous layer comprises tape fibers, wherein the tape fibers contain a polypropylene core and a skin layer. At least a portion of the skin layers of the fibers in each fibrous layer are fused to at least a portion of other skin layers of fibers within the same fibrous layer and at least a portion of the skin layers of the fibers of each fibrous layer are fused with at least a portion of the skin layers of the fibers in an adjacent fibrous layer.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: November 13, 2012
    Assignee: Milliken & Company
    Inventors: Sujith Nair, Sasha Stankovich, Yunzhang Wang, Venkatkrishna Raghavendran
  • Patent number: 8268444
    Abstract: The present invention is directed to a crimping conjugate fiber, comprising a first component and a second component, wherein the first component comprises a polybutene-1; the second component comprises a polymer having a melting point higher than that of the polybutene-1 by at least 20° C., or a polymer having a melting initiation temperature (extrapolated melting initiation temperature measured using differential scanning calorimetry (DSC) as defined in JIS-K-7121) of at least 120° C.; in a cross section of the fiber, the first component occupies at least 20% of the surface of the conjugate fiber, and the centroid position of the second component is shifted from the centroid position of the conjugate fiber; and the conjugate fiber is an actualized crimping conjugate fiber in which three-dimensional crimps have been developed or a latently crimpable conjugate fiber in which three-dimensional crimps are developed by heating.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: September 18, 2012
    Assignees: Daiwabo Holdings Co., Ltd., Daiwabo Polytec Co., Ltd.
    Inventor: Hiroshi Okaya
  • Patent number: 8252706
    Abstract: A method for preparing stretchable bonded nonwoven fabrics which involves forming a substantially nonbonded nonwoven web of multiple-component continuous filaments or staple fibers which are capable of developing three-dimensional spiral crimp, activating the spiral crimp by heating substantially nonbonded web under free shrinkage conditions during which the nonwoven remains substantially nonbonded, followed by bonding the crimped nonwoven web using an array of discrete mechanical, chemical, or thermal bonds. Nonwoven fabrics prepared according to the method of the current invention have an improved combination of stretch-recovery properties, textile hand and drape compared to multiple-component nonwoven fabrics known in the art.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: August 28, 2012
    Assignee: INVISTA North America S.àr.l.
    Inventors: Dimitri P. Zafiroglu, Geoffrey D. Hietpas, Debora Flanagan Massouda, Thomas Michael Ford, Patricia A. Ford, legal representative
  • Patent number: 8247335
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: August 21, 2012
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8231595
    Abstract: A stretchable laminate, a process of making a stretchable laminate and a disposable absorbent article that includes a stretchable laminate are disclosed. The stretchable laminate includes a nonwoven web and a web of elastomeric material. The nonwoven web includes two layers of spunbond multi-component fibers and one layer of meltblown fibers. The multi-component fibers include a first polymer and a second polymer having different melt temperatures. Thermo-bonds are formed at least partially through the nonwoven web. Some of the thermo-bonds can be elongated in the cross-machine direction of the nonwoven web.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 31, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Robert Haines Turner, Donald Zgoda, Walter Douglas Daniels, Jim Thomas Bader, Erika Fabiola Galvis
  • Patent number: 8226626
    Abstract: A stretchable laminate, a process of making a stretchable laminate and a disposable absorbent article that includes a stretchable laminate are disclosed. The stretchable laminate includes a nonwoven web and a web of elastomeric material. The nonwoven web includes two layers of spunbond fibers and one layer of meltblown fibers. Some of the meltblown fibers are present in the interstices formed by the spunbond fibers of one of the layers. As a result of activation of the stretchable laminate, the nonwoven web has a Residual Maximum Peak Force of at least 0.3 N/cm.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 24, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Robert Haines Turner, Donald Zgoda, Walter Douglas Daniels, Jim Thomas Bader, Erika Fabiola Galvis
  • Patent number: 8226625
    Abstract: A stretchable laminate, a process of making a stretchable laminate and a disposable absorbent article that includes a stretchable laminate are disclosed. The stretchable laminate includes a nonwoven web and a web of elastomeric material. The nonwoven web includes two layers of spunbond fibers and one layer of meltblown fibers. Some of the meltblown fibers are present in the interstices formed by the spunbond fibers of one of the layers.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 24, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Robert Haines Turner, Donald Zgoda, Walter Douglas Daniels, Jim Thomas Bader, Erika Fabiola Galvis
  • Patent number: 8227362
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 24, 2012
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8216953
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 10, 2012
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8207073
    Abstract: A highly water pressure-resistant polyester nonwoven fabric having a water pressure resistance of 2 kPA or more and composed of a laminated nonwoven fabric structure that is integrated by thermocompressive bonding an extremely fine fiber nonwoven fabric layer in which a polyester material is mixed with 1% or more of a polyolefin material and which has a fiber diameter of 5 ?m or less, and a polyester filamentary fiber nonwoven fabric layer having a fiber diameter of 7 ?m or more. The polyester nonwoven fabric is a nonwoven fabric material appropriate to moisture-permeable waterproof sheets used for building materials and shoe materials and, moreover, to fields requiring filtering properties, for example, various packaging materials such as dry packaging materials used as packaging materials and sterilization packaging materials also required to have radiation resistance and peel strength.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: June 26, 2012
    Assignee: Asahi Kasei Fibers Corporation
    Inventors: Tomoyuki Hosokawa, Ryuji Suzuka
  • Publication number: 20120142242
    Abstract: The present invention relates to a molded part, in particular, to an interior panel component for a motor vehicle, having a core layer comprising a mixture of natural or synthetic fibers and thermoplastic binding fibers, which are processed to form a nonwoven, and a thermoplastic cover layer, the core layer and the cover layer being fused together and the cover layer being such that the molded part has a visible surface, which is terminated by the cover layer, the visual appearance of the visible surface being at least shaped by the fibers of the core layer. The present invention furthermore relates to the manufacturing of a molded part in which the nonwoven of the core layer is warmed and pre-compressed in a contact heater, and the compressed nonwoven, together with the cover layer is introduced into a mold and recast.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 7, 2012
    Applicant: INTERNATIONAL AUTOMOTIVE COMPONENTS GROUP GMBH
    Inventor: Rainer ANKELE
  • Publication number: 20120125866
    Abstract: A non woven web containing water insoluble nanofibers and/or microfibers obtained by an electrospinning process using water based solution containing at least two components, a first component having carboxylic acid and/or anhydride functionalities and a second component having primary and/or secondary amino functionalities, the web being cured upon a heat treatment.
    Type: Application
    Filed: July 28, 2010
    Publication date: May 24, 2012
    Inventor: Diego FANTINI
  • Patent number: 8182927
    Abstract: An absorbent structure is provided which comprises a first outer layer, a second outer layer, a core layer positioned between the first outer layer and the second outer layer, wherein the core layer comprises a recycled cellulose material, and a core bonding agent.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: May 22, 2012
    Assignee: New Pig Corporation
    Inventors: Anthony Scott Diminick, R. Douglas Evans, Jr., Dane R. Jackson
  • Patent number: 8178199
    Abstract: A water non-dispersible polymer microfiber is provided comprising at least one water non-dispersible polymer wherein the water non-dispersible polymer microfiber has an equivalent diameter of less than 5 microns and length of less than 25 millimeters. A process for producing water non-dispersible polymer microfibers is also provided, the process comprising: a) cutting a multicomponent fiber into cut multicomponent fibers; b) contacting a fiber-containing feedstock with water to produce a fiber mix slurry; wherein the fiber-containing feedstock comprises cut multicomponent fibers; c) heating the fiber mix slurry to produce a heated fiber mix slurry; d) optionally, mixing the fiber mix slurry in a shearing zone; e) removing at least a portion of the sulfopolyester from the multicomponent fiber to produce a slurry mixture comprising a sulfopolyester dispersion and water non-dispersible polymer microfibers; and f) separating the water non-dispersible polymer microfibers from the slurry mixture.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 15, 2012
    Assignee: Eastman Chemical Company
    Inventors: Rakesh Kumar Gupta, Melvin Glenn Mitchell, Daniel William Klosiewicz
  • Patent number: 8173257
    Abstract: A viscose fiber comprises a fiber body including a regenerated cellulosic material and a plurality of microcapsules dispersed in the regenerated cellulosic material. The regenerated cellulosic material is derived from an organic plant material and the plurality of microcapsules containing a phase change material has a transition temperature in the range of 0° C. to 100° C., the phase change material providing thermal regulation based on at least one of absorption and release of latent heat at the transition temperature.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: May 8, 2012
    Assignee: Outlast Technologies, Inc.
    Inventors: Mark Hartmann, James Brice Worley, Matthew North
  • Patent number: 8168003
    Abstract: The present invention relates to a fiber having starch and a surfactant, and a web employing such a fiber.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: May 1, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Valerie Ann Bailey, Larry Neil Mackey, Paul Dennis Trokhan
  • Patent number: 8158539
    Abstract: The following disclosure provides a structural mat for manufacturing a moldable structural hardboard body. The structural mat has a nucleated/coupled binder and a fibrous material. The nucleated/coupled binder material has a first binder material combined with a nucleating agent; and a second binder material combined with a coupling agent. The first binder material is combined with the nucleating agent to make a discrete nucleated/binder material. The second binder material is combined with the coupling agent to make a discrete coupled/binder material. The discrete nucleated/binder material and the discrete coupled/binder material are blended together. The fibrous material is blended with the discrete nucleated/binder material and the discrete coupled/binder material to form the structural mat.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: April 17, 2012
    Assignee: FlexForm Technologies, LLc
    Inventor: Garry E. Balthes
  • Patent number: 8158244
    Abstract: Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 17, 2012
    Assignee: Eastman Chemical Company
    Inventors: Rakesh Kumar Gupta, Scott Ellery George, Daniel William Klosiewicz, Kab Sik Seo, Coralie McKenna Fleenor, Allen Lynn Crain
  • 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: 8129297
    Abstract: A process for drying/heat-treating nonwoven webs in which the web is partially dried under tension in a first drying zone and further heat treated under low tension or in a substantially tensionless state a second drying zone. The process significantly reduces the occurrence of stretch-type defects in the nonwoven webs.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: March 6, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: John C. Cleary, Michael C. Davis, Todd A. McCoy, Edgar N. Rudisill
  • Patent number: 8124549
    Abstract: This invention provides a composition for forming a fabric by spraying onto a supporting surface, the composition comprising fibers, a binder and a diluent. Further aspects of the invention include the fabric formed by spraying the composition and an article comprising the fabric, an apparatus and a method for spraying the composition.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: February 28, 2012
    Inventors: Manel Torres, Paul Luckham
  • Patent number: 8119549
    Abstract: A consolidated fibrous structure including a multiplicity of fibrous layers. The fibers of each fibrous layer contain a core and a skin layer. The core has an exterior surface portion containing polypropylene. The skin layer is disposed on at least a portion of the core and contains a first polymer and a second polymer. The first polymer contains a polymer having at least 70% ?-olefin units and is characterized by a melting temperature lower than the melting temperature of the exterior surface portion of the core. The second polymer contains a co-polymer having at least 50% ?-olefin units and is characterized by a number-average molecular weight of about 7,000 g/mol to 50,000 g/mol, a viscosity of between about 2,500 and 150,000 cP measured at 170° C., and a melting temperature lower than the melting temperature of the exterior surface portion of the core. The viscosity of the second polymer is not greater than about 10 percent of the viscosity of the first polymer measured at 170° C.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: February 21, 2012
    Assignee: Milliken & Company
    Inventors: Sujith Nair, Sasha Stankovich, Yunzhang Wang, Venkatkrishna Raghavendran
  • Patent number: 8119237
    Abstract: A fiber is obtainable from or comprises a blend of a propylene based polymer and an ethylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481?1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven, knitted or non-woven fabrics can be made from such fibers.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: February 21, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Hong Peng, Hongyu Chen, Yuen-Yuen D. Chiu, Shih-Yaw Lai, Eddy I. Garcia-Meitin, Charles F. Diehl
  • Patent number: 8114794
    Abstract: The invention relates to a nonwoven fabric which is bonded at selected points by use of a binder containing particles composed of filler material (a phase change material, among others) and which is not bonded at other selected points. The nonwoven fabric is characterized by a soft touch and good flexibility, and may be used as an interlining material or an intermediate layer.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: February 14, 2012
    Assignee: Carl Freudenberg KG
    Inventors: Peter Grynaeus, Hans Rettig, Oliver Staudenmayer
  • Patent number: 8093162
    Abstract: The present invention relates to the production of a non-woven material having high extensibility and comprising polymer fibers using mixtures with amphiphilic block copolymers as compatibilizers for preparing blends, as well as their production and use.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: January 10, 2012
    Assignee: Fiberweb Corovin GmbH
    Inventors: Helmut Hartl, Markus Haberer
  • Patent number: 8057567
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: November 15, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: David M. Webb, David E. Carlson, Robert M Rogers, Keh B. Dema
  • Patent number: 8053380
    Abstract: Impact copolymers, comprising an in-reactor blend of homopolymer polypropylene and an ethylene-propylene rubber, can be processed into spunbond non-woven fabrics. These fabrics have been shown to have increased ultimate extension without reduction in the ultimate tensile strength, as compared to conventional homopolymer polypropylene derived spunbond non-wovens.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: November 8, 2011
    Assignee: Braskem America, Inc.
    Inventors: Richard A. Campbell, Thomas A. Debowski
  • Patent number: RE43867
    Abstract: A rocket motor assembly is insulated or thermally protected with a rocket motor ablative material formed from a prepreg. The prepreg contains at least an impregnating resin matrix and, as a precursor prior to carbonization, carded and spun staple cellulosic fibers. When patterned and carbonized, the rocket motor ablative material can be lined or otherwise placed into a rocket motor assembly, such as between the solid propellant and case, in the bulk area of the exit nozzle liner, or at susceptible portions of a re-entry vehicle, such as the nose cone.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: December 18, 2012
    Assignee: Alliant Techsystems Inc.
    Inventors: Kenneth P. Wilson, Shelley Rawding, legal representative, John K. Shigley, Allan P. Thompson