Synthetic Polymeric Strand Or Fiber Material Patents (Class 442/359)
  • Patent number: 10413037
    Abstract: An elastic body for cosmetic holding use which can be used for holding a cosmetic such as a foundation, such as a puff that can be used for the application of a cosmetic onto skin, said elastic body being characterized by containing conjugate fibers as constituent fibers, wherein each of the conjugate fibers contains a resin A and a resin B having a higher melting temperature than that of the resin A, and contact parts between the constituent fibers are integrated with the resin A contained in the conjugate fibers; a cosmetic-containing elastic body which comprises the elastic body for cosmetic holding use and a cosmetic contained in the elastic body; and a cosmetic equipped with the cosmetic-containing elastic body.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: September 17, 2019
    Assignee: TAIKI CORP., LTD.
    Inventors: Reiko Yamanaka, Yukiko Doi, Toshihiko Ohira
  • Patent number: 10125230
    Abstract: The present invention relates to a polyurethane composite system comprising a rigid polyurethane foam and a coating material composed of a compact polyurethane or a compact polyurea, wherein the rigid polyurethane foam comprises a porous three-dimensional reinforcing material which forms a network, where the network encloses at least 50% of the volume of the rigid polyurethane foam, or at least two layers of a porous, at least two-dimensional reinforcing material. The present invention further relates to a process for producing the polyurethane composite system and also a sports article, cladding part or furniture item comprising such a polyurethane composite system.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: November 13, 2018
    Assignee: BASF SE
    Inventors: Frank Prissok, Marco Balbo Block, Florian Felix
  • Patent number: 9286577
    Abstract: Articles of manufacture that are sustainably recyclable and related methods are provided. The article can include a first element having a first polymeric material and a first physical parameter and a second element having a second polymeric material and a second physical parameter. The first polymeric material of the first element and the second polymeric material of the second element are substantially chemically similar while the first physical parameter of the first element and the second physical parameter of the second element are physically different. Methods for manufacturing sustainably recyclable articles are also provided.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: March 15, 2016
    Inventors: Christopher Kyle Shofner, Jeffrey Donald Irwin
  • Patent number: 9150689
    Abstract: The present invention provides a method of preparing a flame retardant polyester fiber that makes it possible to prepare a flame retardant polyester fiber having excellent shape stability while preventing a lumping phenomonon and reducing powder generation and discoloration during the preparing process of the flame retardant polyester fiber, and a flame retardant polyester fiber prepared therefrom.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: October 6, 2015
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Yun-Jo Kim, Young-Soo Lee, Si-Min Kim
  • Publication number: 20140242309
    Abstract: A non-woven mono-component, mono-constituent poly lactic acid (PLA) web is disclosed. The web material is useful for production of tea bags and other infusion beverages. The nonwoven network of PLA fibers in mono-component, mono-constituent configuration provides infusion properties, strength and weight properties that surpass current beverage bags and pouches because of its unique composition and structure.
    Type: Application
    Filed: January 2, 2014
    Publication date: August 28, 2014
    Inventors: Stephen W. Foss, Jean-Marie Turra
  • Patent number: 8803115
    Abstract: The present invention relates to a coated microfibrous web, a process for producing the same, use thereof as a covering of a radiation protection material as well as a radiation protection device. The coated microfibrous web comprises: (i) a microfibrous web impregnated with a fluoropolymer; and (ii) a layer comprising polyurethane, which is present only on one side of the microfibrous web.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: August 12, 2014
    Assignee: Mavig GmbH
    Inventors: Thomas Leucht, Barbara Ballsieper
  • Patent number: 8461066
    Abstract: A nonwoven material has a plurality of randomly oriented and bulked crimped filaments, a plurality of point bonds interconnecting said crimped filaments into a fixed, 3-dimensional structure, and either a surface portion of said fixed, 3-dimensional structure having a greater density than an inner portion of said 3-dimensional structure or an external surface of said fixed, 3-dimensional structure being substantially free of any protruding filaments. The nonwoven material is made by: bulking a filament tow, fixing the bulked tow into a 3-dimensional structure, and calendering the 3-dimensional structure.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: June 11, 2013
    Assignee: Celanese Acetate LLC
    Inventors: Raymond M. Robertson, Rene B. Neron, Gary E. Dehart
  • 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
  • Publication number: 20110250816
    Abstract: The invention provides a nonwoven fabric which can improve these problems of the conventional technologies, can be produced at relatively low costs, is bulky and excellent in cushioning properties, has a good texture and is excellent in shaping ability at post-processing. Specifically, the present invention provides a bulky nonwoven fabric, comprising a fiber layer A containing a spiral crimp fiber and a fiber layer B, wherein the fiber layer B is laminated on at least one surface of the fiber layer A, the spiral crimp fiber of the fiber layer A and the fiber of the fiber layer B are partly entangled and integrated at the interface in a thickness direction of both layers, the fiber layer B exhibits a structure in which the layer is lifted up to the fiber layer B side between individual entangled parts; and having a specific volume of 30 cm3/g or more.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Inventors: Toshikatsu Fujiwara, Hirokazu Terada
  • Publication number: 20110237147
    Abstract: A textile cushioning batting for use in furniture and the like having a high degree of loft and rebound is disclosed comprising: a non-woven blended batting comprising a major portion of a fine denier fiber and a minor portion of a coarse denier fiber. The fibers have increased crimping amplitudes, secondary crimping, sharper crimp and optimized crimps per inch. A low melt binds fiber binding the fine and coarse denier fibers together in the batting; and a sufficient number of the fibers being heat are bonded together at their intersections to provide a high loft resilient batting for cushioning.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Applicant: David C. Poole Company, Inc.
    Inventor: Robert Alton Usher, JR.
  • Publication number: 20090318050
    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: Application
    Filed: March 30, 2007
    Publication date: December 24, 2009
    Applicants: Daiwabo Co., Ltd., Daiwabo Polytec Co., Ltd
    Inventor: Hiroshi Okaya
  • Patent number: 7357889
    Abstract: Thermoplastic polyether polyurethane polymers are disclosed which are mixed with a non-polyether crosslinking agent to achieve long run times in a melt spinning process to make elastic fibers. The crosslinking agent is preferably a polyester polyol reacted with a diisocyanate. A melt spinning process is also disclosed using a polyether polyurethane with a polyester crosslinking agent. Long melt spinning run times can be achieved without experiencing excessive pressure buildup in the spinneret and fiber breakage.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: April 15, 2008
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Ravi R. Vedula, Yinbing Xia
  • Patent number: 7303808
    Abstract: A bulky sheet material having three-dimensional protrusions 10 is disclosed. The sheet material comprises a first layer 1 and a second layer 2 adjacent to the first layer 1. The first layer 1 and the second layer 2 is partly joined together at joints 3 in a prescribed pattern. The first layer 1 has a number of raised portions which are located among the joints 3. The second layer 2 comprises a material which exhibits elastomeric behavior. The bulky sheet material 10 exhibits elastomeric behavior as a whole and breathability.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: December 4, 2007
    Assignee: KAO Corporation
    Inventors: Shoichi Taneichi, Manabu Kaneta, Yasuhiro Komori, Takanobu Miyamoto, Wataru Saka, Yoshihiro Sakai
  • Patent number: 7147734
    Abstract: The present invention relates to a method for forming a fire combustion modified batt. The method comprises the step of forming a blend of nonwoven and oxidized polyacrylonitrile fibers into a web. The oxidized polyacrylonitrile fibers are fire resistant and when blended with nonwoven fibers are relatively easily processed into a batt. A second blend of nonwoven fibers can be formed into a web and layered with the oxidized polyacrylonitrile fiber web to form the batt. The fibers are bonded together with heat, resin or other bonding material and are compressed and cooled. The fire combustion modified batt is useful as fire barriers and fillers in bedding, upholstery and vehicle and aircraft seats, as insulators for apparel, appliances, walls and ducting, as barriers to separate control systems from a heat source, and as components in fire safety gear such as race driver suits and oven and welding mitts.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: December 12, 2006
    Assignee: L & P Property Management Company
    Inventors: Steven Ogle, Karl Van Becelaere
  • Patent number: 7132022
    Abstract: A bi-layered fire resistant (FR) nonwoven fiber batt and an associated method for manufacturing the same. The bi-layered FR nonwoven fiber batt includes a first, gray, FR layer, formed from a blend of black oxidized polyacrylonitrile (oxidized PAN), white dry polyester carrier fibers and white low-melt polyester binder fibers, and a second, white, layer, formed from a blend of white FR rayon, white dry polyester carrier fibers and white low-melt polyester binder fibers, disposed in a conforming relationship with the first, gray, FR layer.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: November 7, 2006
    Assignee: L&P Property Management Company
    Inventors: Steven E. Ogle, D. Patrick Steagall, Kenneth C. Thompson
  • Patent number: 7001554
    Abstract: A durable erosion control blanket featuring a novel synthetic fiber filler is disclosed. The erosion control blanket of the present invention addresses the need for a particularly resilient erosion control blanket through the use of a post-consumer, crimped, polyester fiber filler material. In one embodiment, the post-consumer fiber material is of polyethylene terephthalate (PET) readily available in post-consumer form from the recycling of soda bottles. In short, a preferred filler material for the blanket of the present invention would utilize recycled soda bottle material which has been converted into a crimped, highly-resilient fibrous filler. It is, thus, possible to achieve the desired physical and mechanical properties in the erosion control blanket of the present invention while conserving natural resources to some extent by using a readily available post-consumer polymer material.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: February 21, 2006
    Assignee: American Excelsior Company
    Inventor: Gerald Davis Bohannon, Jr.
  • Patent number: 6900147
    Abstract: A neckable nonwoven web is provided with a central region and two edge regions, the central region being selectively easier to neck than the two edge regions. The nonwoven fibers in the central region have a polymer composition and/or physical properties which differ from the nonwoven fibers in the two edge regions. The selectively easier necking in the central region causes the central region to neck to about the same extent as the two edge regions, which otherwise would experience greater necking than the central region if the starting nonwoven web were completely uniform. Necked nonwoven webs and neck-bonded laminates made using the improved neckable nonwoven web, are also provided.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: May 31, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael T. Morman, Charles J. Morell
  • Patent number: 6855650
    Abstract: A durable erosion control blanket featuring a novel synthetic fiber filler is disclosed. The erosion control blanket of the present invention addresses the need for a particularly resilient erosion control blanket through the use of a post-consumer, crimped, polyester fiber filler material. In one embodiment, the post-consumer fiber material is of polyethyleneterephthalate (PET) readily available in post-consumer form from the recycling of soda bottles. In short, a preferred filler material for the blanket of the present invention would utilize recycled soda bottle material which has been converted into a crimped, highly-resilient fibrous filler. It is, thus, possible to achieve the desired physical and mechanical properties in the erosion control blanket of the present invention while conserving natural resources to some extent by using a readily available post-consumer polymer material.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: February 15, 2005
    Assignee: American Excelsior Company
    Inventor: Gerald Davis Bohannon, Jr.
  • Publication number: 20040142622
    Abstract: The present invention is directed to nonwoven barrier fabrics, and more specifically, to medical, hygiene and industrial articles comprised of nonwoven compound fabrics with improved barrier to basis weight performance, wherein the improved nonwoven compound fabrics are prepared by forming an intermediate nonwoven construct by supplying a strong and durable substrate layer followed by deposition of a frangible fibrous layer onto the substrate layer thereby providing nonwoven barrier materials. The so formed intermediate construct is subsequently subjected to mechanical energy which induces the frangible fibrous layer to fragment into sub-fibers exhibiting an equivalent denier as the frangible fibrous component, said sub-fibers becoming inter-engaged in the strong and durable substrate layer, thereby providing nonwoven barrier materials exhibit useful barrier performance.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 22, 2004
    Inventor: Jerry Zucker
  • Publication number: 20040116027
    Abstract: The present invention is concerned with a novel non-woven fabric characterized by high stretch recovery and a process for preparing said fabric by employing fibers of latent crimp.
    Type: Application
    Filed: November 21, 2003
    Publication date: June 17, 2004
    Inventors: Yves Termonia, James Edmond Van Trump
  • Patent number: 6740609
    Abstract: A blend of fatty acid amides is incorporated into the polypropylene fibers of a thermally bonded, melt extruded nonwoven fabric to import softness to the fabric. The blend includes a greater amount of stearamide and a lesser amount of erucamide.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: May 25, 2004
    Assignee: Polymer Group, Inc.
    Inventors: Fang Yi Peng, Zhang Dao Hong, Chen Kang Zhen, Zhou Pei Qiong
  • Publication number: 20040092192
    Abstract: The present invention provides a nonwoven fabric that is especially engineered to function as the substrate for a dryer activated fabric softener sheet. The substrate has a basis weight of 0.48 ounces per square yard or less, a thickness of from about 0.16 mm to about 0.38 mm, and comprises a nonwoven web of fibers, wherein at least some of the fibers are hollow. Preferably the fibers have a denier of from 2 to 8. In preferred embodiments of the invention, the hollow fibers have a void area at least 10 percent of the fiber cross-section, and the fibers have a noncircular trilobal cross-section.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 13, 2004
    Applicant: Reemay, Inc.
    Inventor: Edward Keith Willis
  • Publication number: 20040048034
    Abstract: Loop forming material, wherein said material comprises crimped tows of continuous filaments, said material having a thickness comprised between 0,1 mm and 3 mm and a weight comprised between 15 g/m2 and 100 g/m2.
    Type: Application
    Filed: July 23, 2003
    Publication date: March 11, 2004
    Inventors: Donald H. Lester, Steven Floyd Nielsen, Bryan P. Thomas
  • Patent number: 6689703
    Abstract: An elastically stretchable nonwoven fabric including thermoplastic elastomer filaments; the filaments being heat-sealed and/or mechanically intertwined together to form the nonwoven fabric that has crimped regions and non-crimped regions wherein each of the crimped regions has fine crimps in the rate of 50/cm or higher.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: February 10, 2004
    Assignee: Uni-Charm Corporation
    Inventors: Toshio Kobayashi, Satoru Tange, Masaki Yoshida, Emiko Inoue
  • Publication number: 20030211799
    Abstract: Fibers and fibrous materials are disclosed that comprise a functional fiber and a binder fiber. The functional fiber can be a continuous or a staple fiber, while the binder fiber is a staple bicomponent fiber. Uses of the fibers and fibrous materials are also disclosed.
    Type: Application
    Filed: June 19, 2003
    Publication date: November 13, 2003
    Applicant: Porex Corporation
    Inventors: Li Yao, Guoqiang Mao, Xingguo Li
  • Publication number: 20030203694
    Abstract: Disclosed is a filter medium having at least a first layer containing a stabilized matrix of thermoplastic filaments and at least one secondary material; and a second layer having a stabilized matrix of thermoplastic filaments and optionally of at least one secondary material. Each of the layer of the filter medium has a different compositional ratio of the components to result in a gradient structure. The compositional gradient for the layers of the coform results in a filter having improved capacity, which extends the life of the filter medium, as compared to a filter without the compositional gradient. The present invention also provides a method of removing particles from a fluid containing particles. The method of the present invention includes contacting the fluid containing particles with the filter medium of having the two layers described above in a manner such that the fluid containing particles is passed through the first layer of the filter medium before the second layer.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 30, 2003
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Ganesh Chandra Deka, Ronald C. Cox
  • Publication number: 20030186612
    Abstract: A lightweight nonwoven material having hydrophilic characteristics is described. The nonwoven material includes at least three layers wherein a first layer is spunlaid, a second layer is meltblown, and a third layer is spunlaid, the first and third layers being external layers. The basis weight of the nonwoven material is 13.5 gsm or less and the basis weight of the second meltblown layer is 3.5 gsm or less, preferably less than 3.0 gsm, and more preferably less than 2.5 gsm. Hydrophilicity is imparted to the nonwoven material by inclusion of a surfactant additive in an extrusion melt during formation of fibers, or by topical treatment following formation of the layers of the nonwoven material. The method of making the nonwoven material involves formation of the layers thereof as continuous fibers and forming the layers in a continuous sequential manner, i.e., a subsequent layer being formed on top of a preceding layer or layers.
    Type: Application
    Filed: July 15, 2002
    Publication date: October 2, 2003
    Applicant: Avgol Ltd.
    Inventors: Moshe Goldwasser, Achai Bonneh
  • Publication number: 20030129912
    Abstract: The invention relates to a reinforcing material formed from bulked fibres that are combined in the form of a mat or a nonwoven. The bulked fibres differ as regards the material or degree of bulking. Alternatively or in addition, unbulked fibres are used.
    Type: Application
    Filed: November 18, 2002
    Publication date: July 10, 2003
    Inventor: Klaus K. Kolzer
  • Publication number: 20030124938
    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: Application
    Filed: December 13, 2002
    Publication date: July 3, 2003
    Inventors: Dimitri P. Zafiroglu, Geoffrey David Hietpas, Debora Flanagan Massouda, Thomas Michael Ford
  • Publication number: 20030124939
    Abstract: This invention relates to a method for preparing nonwoven fabrics having an improved balance of properties in the machine and cross-directions. More specifically, the invention utilizes nonwoven webs that include relatively low levels of multiple-component fibers having latent three-dimensional spiral crimp combined with fibers that do not develop spiral crimp. The latent spiral crimp of the multiple-component fibers is activated, such as by heating, under free shrinkage conditions, after formation of the nonwoven web to achieve re-orientation of the non-spirally-crimpable fibers and an improved balance of properties such as tensile strength and modulus.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 3, 2003
    Inventors: Dimitri P. Zafiroglu, Geoffrey David Hietpas
  • Publication number: 20030104748
    Abstract: There is provided a nonwoven fabric for use in personal care absorbent articles where the fabric is made from single polymer, helically crimped fibers. Such a fabric provides economical production since it uses only one polymer. These fabrics have superior void volume and resilience and are useful in a number of applications, including as outercovers, liners, surge layers and even as an absorbent core.
    Type: Application
    Filed: December 3, 2001
    Publication date: June 5, 2003
    Inventors: Kurtis Lee Brown, Christopher Bryan Quinn, Jeffrey David Shelley, Samuel L. Sykes
  • Publication number: 20030100239
    Abstract: The present invention relates to carbon-matrix composites, such as carbon-carbon composites, and a method for forming them by forming a fabric of fusible and infusible fibers which can be processed and carbonized to form a composite. The methods disclosed herein permit preparation of composites which are particularly thin, uniform, and highly pure. The invention also relates to preprocessed fabrics and precarbonized composites, such as those comprising carbon or oxidized polyacrylonitrile fibers and fusible polyacrylonitrile fibers.
    Type: Application
    Filed: July 26, 2001
    Publication date: May 29, 2003
    Applicant: Textron Systems Corporation
    Inventors: John J. Gaffney, Raymond C. Loszewski
  • Publication number: 20020137418
    Abstract: A composite fabric for use in dewatering high solids content fluid materials comprising a multiplicity of corrugated strands of compression resistant material, and one or more sheets of porous material bonded along its length at sheet bonding locations to the strands, some of which strands have arcuate portions projecting from the strands between those sheet bonding locations. The sheet-like composite may be incorporated where there is a need to dewater high solids content fluids such as in disposable garments such as diapers or training pants.
    Type: Application
    Filed: March 23, 2001
    Publication date: September 26, 2002
    Applicant: 3M Innovative Properties Company
    Inventor: Jayshree Seth
  • Publication number: 20020098762
    Abstract: Robust homofilament fibers are meltspun from specially shaped capillaries to induce differential shear to induce crimping. Crimping may further be aided by directed quenching and drawing of the fibers.
    Type: Application
    Filed: December 6, 2001
    Publication date: July 25, 2002
    Inventors: Jeffrey David Shelley, Jose Enrique Maldonando, Braulio A. Polanco
  • Publication number: 20010039160
    Abstract: Disclosed is a nonwoven fabric that is formed of polyethylene glycol modified copolyester staple fibers. The copolyester staple fibers include polyethylene terephthalate in amount sufficient for the copolyester staple fibers to possess dimensional stability properties substantially similar to those of conventional, unmodified polyethylene terephthalate fibers, polyethylene glycol in an amount sufficient for the copolyester staple fibers to possess wicking characteristics that are superior to those of conventional, unmodified polyethylene terephthalate fibers, and chain branching agent in an amount less than about 0.0014 mole-equivalent branches per mole of standardized polymer. Also disclosed are methods for making such nonwoven fabrics.
    Type: Application
    Filed: January 17, 2001
    Publication date: November 8, 2001
    Inventors: Keith J. Carnes, James Burch Branum
  • Publication number: 20010029281
    Abstract: A polyester composition is disclosed that is particularly suitable for filament. The composition is formed of polyethylene terephthalate; polyethylene glycol in an amount sufficient to increase the wetting and wicking properties of a filament made from the composition to a level substantially similar to the wetting and wicking properties of cotton and other cellulosic fibers (natural or synthetic) but less than the amount that would reduce the favorable elastic memory properties of the polyester composition; and a chain branching agent selected from the group consisting of trifunctional alcohols and acids and tetrafunctional alcohols and acids that will copolymerize with polyethylene terephthalate, the chain branching agent being present in an amount sufficient to raise the melt viscosity of the polyester composition to a level that permits filament manufacture under conditions that are substantially the same as those under which filament can be formed from unmodified polyethylene terephthalate.
    Type: Application
    Filed: May 9, 2001
    Publication date: October 11, 2001
    Inventors: Carl S. Nichols, Billy Mack Humelsine
  • Patent number: 6200669
    Abstract: Nonwoven webs are fabricated by forming unitary multicomponent fibers comprising a plurality of individual segments partially exposed at the surface of the fiber; bonding the multicomponent fibers, such as by thermal point bonding, and then hydroentangling the bonded multicomponent fibers with a water pressure from about 400 to 3000 psi wherein the entangling process separates the individual segments of the unitary multicomponent fibers into microfibers and also entangles the fibers to form an integrated nonwoven web. The nonwoven webs include entangled webs of thermoplastic multicomponent fibers and microfibers having partially degraded bond areas comprising from about 5% to about 50% at the surface area of the web.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: March 13, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Samuel Edward Marmon, Elisha Seidah Wazeerud-Din, Brett Peter Samuels
  • Patent number: 5906952
    Abstract: A water-absorbent wrap for power cables, communication cables, and like cables includes a calendered, single layer nonwoven formed of a carded mixture of super water-absorbent fibers and cohesive carrier fibers. The calendered nonwoven is characterized by a thickness of not more than 2.0 mm, a basis weight of not more than 200 gsm, a swelling height of at least 3 mm, a swelling speed of at least 1 mm/1st min., and a tensile strength of at least 20 N/5 cm.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: May 25, 1999
    Assignee: Nordlys S.A.
    Inventors: Jacques Everaere, Michael Delattre, Christopher Wren
  • Patent number: 5876840
    Abstract: Spunbond multicomponent filaments and nonwoven webs made from the filaments are disclosed. In accordance with the present invention, the multicomponent filaments contain a crimp enhancement additive. Specifically, the crimp enhancement additive is added to one of the polymeric components in order to accelerate its solidification rate. The additive enhances crimp, allows for highly crimped filaments to be made at smaller deniers, and produces low density webs with improved stretch and cloth-like properties. Specifically, the additive incorporated into the filaments is a nonionic surfactant such as an alkyl ether alkoxylate, a siloxane alkoxylate, an ester of a polyalkylene glycol, a polysaccharide derivative, a glycerol ester, or mixtures thereof.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: March 2, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Xin Ning, Samuel E. Marmon
  • Patent number: 5783503
    Abstract: Multicomponent thermoplastic continuous filaments are provided, including hollow core multicomponent filaments. The filaments are at least partially splittable into smaller filaments in the absence of mechanical treatment or application of high pressure water jets. The surface energy of the components can be controlled to control separation of the multi-component filaments. Sub-denier and micro-denier filaments of low orientation can be produced from relatively high molecular weight polymers to produce nonwovens of surprising strength, barrier, and cover.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: July 21, 1998
    Assignee: Fiberweb North America, Inc.
    Inventors: Jay Darrell Gillespie, David Bruce Christopher, Harold Edward Thomas, John Henry Phillips, Scott Louis Gessner, Lloyd Edwin Trimble, Jared Asher Austin
  • Patent number: 5695377
    Abstract: There is provided a fabric produced by a spunbond or a meltblown apparatus, wherein the apparatus has a pneumatic chamber having at least one wall containing a plurality of spaced protrusions. Preferably, both opposing walls contain protrusions aligned in staggered angled rows and the rows on one wall are angled opposite the rows on the opposing wall, thereby causing controlled lateral flow near the chamber walls. This lateral flow exhibits drag on the fibers, imparting rotational energy to the fibers. The fibers are imparted with rotational energy derived from the lateral component of the two turbulent airflow fields that oppose one another, and have a tendency to twist and crimp. Fabrics so produced have improved loft, drape, and feel and may be useable as a loop material for hook-and-loop type fasteners.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: December 9, 1997
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Thomas Gregory Triebes, Jark Chong Lau
  • Patent number: 5662728
    Abstract: A particulate filter structure and method for making the structure are disclosed. The structure includes a stable framework of relatively large denier fibers having a lower melting component and a higher melting component. The larger denier fibers have a denier of from about 30 dpf or more and are bonded by the lower melting component at the crossover points. Smaller denier fibers, which preferably are of the same composition as the larger denier fibers are immobilized onto the framework formed by the larger denier fibers by applying heat. Functional particulate such as activated carbon is immobilized primarily onto the smaller denier fibers, also by application of heat.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: September 2, 1997
    Assignee: Hoechst Celanese Corporation
    Inventor: Herbert Gunter Groeger
  • Patent number: 5597645
    Abstract: The present invention provides a filter medium, which contains an electretized nonwoven web of crimped fibers selected from the group consisting of spunbond filaments and staple fibers, wherein the nonwoven web has a Frazier permeability equal to or greater than about 100 ft.sup.3 /min/ft.sup.2 and a density between about 0.01 g/cm.sup.3 and about 0.095 g/cm.sup.3.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: January 28, 1997
    Assignee: Kimberly-Clark Corporation
    Inventors: Richard D. Pike, Richard M. Peterson