EP0518003A1 - Non-tissé en filaments continus thermoplastiques et son procédé de fabrication - Google Patents

Non-tissé en filaments continus thermoplastiques et son procédé de fabrication Download PDF

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Publication number
EP0518003A1
EP0518003A1 EP92104068A EP92104068A EP0518003A1 EP 0518003 A1 EP0518003 A1 EP 0518003A1 EP 92104068 A EP92104068 A EP 92104068A EP 92104068 A EP92104068 A EP 92104068A EP 0518003 A1 EP0518003 A1 EP 0518003A1
Authority
EP
European Patent Office
Prior art keywords
polycaprolactone
filaments
spunbonded nonwoven
biodegradable
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92104068A
Other languages
German (de)
English (en)
Other versions
EP0518003B1 (fr
Inventor
Helmut Dr. Eschwey
Monika Dr. Giesen-Wiese
Maria Grill
Ararad Dr. Emirze
Hans-Peter Dr. Seidler
Bernhard Dr. Klein
Michael Kauschke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0518003A1 publication Critical patent/EP0518003A1/fr
Application granted granted Critical
Publication of EP0518003B1 publication Critical patent/EP0518003B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/681—Spun-bonded nonwoven fabric

Definitions

  • the present invention relates to a spunbonded nonwoven fabric made of thermoplastic continuous filaments and a method for its production.
  • Biodegradable nonwovens made from staple fibers are known: The use of viscose fibers is described in I. MARINI, General. Nonwovens Report (1986) Vol. 14, No. 4, 214 f.
  • biodegradable fibers are natural fibers and natural fiber derivatives. Areas of application are disposable consumer goods such as Children's and incontinence diapers, bed pads, surgical gowns and surgical drapes and plasters.
  • Biodegradable should be understood here and in the following to mean that the fiber or nonwoven material is completely destroyed by microorganisms. These microorganisms are bacteria and fungi that are present in the soil, among other things.
  • a disadvantage of the known biodegradable nonwoven fabrics is the anisotropy inherent in all staple fiber products, which is particularly evident in the mechanical properties, e.g. the strength, disadvantageously noticeable: this is different in the longitudinal and transverse directions, and it is easy to see that this limits and makes the properties of use more difficult.
  • Another criterion is the consolidation of the biodegradable short fibers, which usually has to be done with additional binders, since natural fibers are known to have no thermoplastic properties. Such binders are critical because of possible irritation on the skin or problems with wound tolerance; moreover, they are usually not biodegradable.
  • spunbonded nonwovens made from continuous polymer filaments which have the same strength properties in all directions, are often more hygienic in use because of the smooth surface of the polymers and because of the thermoplastic properties, they can be easily connected to one another by heat, ie welded together.
  • the production is described for example in DE-PS 31 51 322, the filament polymer being polypropylene.
  • Endless polymer filaments as components of spunbonded nonwovens which are made from biodegradable polymers, e.g. thermoplastic cellulose derivatives exist, are not known to the applicant; this is due to the difficulties that these degradable polymers encounter in melt spinning: Just above the melting temperature, these polymers remain so viscous that they cannot be spun into filaments; if the temperature is increased further, decomposition usually occurs immediately.
  • thermoplastic, biodegradable material forming the continuous filaments consists of at least 50% by weight of polycaprolactone, which has an average molecular weight of 35,000 to 70,000.
  • This material alone already fulfills all the properties required in the task.
  • the biodegradability of polycaprolactone has been known for a long time, but so far this material has only been used for the production of surgical sutures, ie relatively coarse yarns, the melted thread being quenched in water. This process has nothing in common with melt spinning technology.
  • the polycaprolactone type mentioned can be processed on conventional melt spinning devices to form endless polymer threads, the process steps of melting, pumping to the nozzles, drawing and cooling by means of tempered air and laying down of the finished filaments, of course, within the scope of manual skill on the thermal properties of the polymer must be matched.
  • a conventional melt spinning plant can be used in any case. It is essential that a finished, consolidated spunbonded nonwoven fabric is already present in the manufacturing process, after deposition, ie no subsequent consolidation step is required, for example by embossing rollers or the like.
  • thermoplastic welding occurs automatically at the filament crossing points.
  • thermoplastic fibers e.g. Polypropylene, polyethylene, polyamide or polyester
  • polycaprolactone specified above in a proportion of at least 50% by weight in the filament-forming polymer allows subsequent thermal consolidation to be dispensed with.
  • the filament material consists of the polycaprolactone mentioned. It is easily spinnable to form a continuous filament at 150 to 220 ° C, with no decomposition; furthermore, this material is stretchable after spinning out of the nozzles, a property that other biodegradable polymers do not have.
  • the limits of the molecular weight are given by the fact that at smaller values the mass is too wax-like to be still spinnable and at molecular weights over 70,000 the material becomes brittle.
  • thermoplastic polymers instead of the pure polycaprolactone.
  • Biodegradable two-component systems in the above sense are those which contain polyhydroxybutyrate, polyhydroxybutyrate hydroxyvalerate copolymer, a polylactide or polyester urethane as the second polymer component.
  • the materials of these second components are biodegradable, but cannot be spun as a pure substance or only with great technical effort. Only the combination with polycaprolactone makes the mass suitable for conventional melt spinning processes and solves the requirements mentioned in the task.
  • All of the polymer mixtures mentioned and the pure polycaprolactone are easy to dye, have an extensibility of at least 50% and impart a textile character to the spunbonded nonwoven.
  • covering fleeces for horticulture and agriculture covering fleeces for horticulture and agriculture; adhesion-promoting adhesive fleece and adhesive between polar and non-polar polymers, for example between polyethylene and polypropylene or polyester and polyamide; iron-on interlining nonwovens in the outer clothing area because of the anisotropic stretching property; technical applications in which permanent hydrophilic properties or antistatic properties are required, e.g. filter materials.
  • Polycaprolactone with a melting point around 60 ° C and an MFI value (melt flow index) of 10 g / 10 min at 130 ° C / 2.16 kg is melted at an extruder temperature of 185 ° C.
  • the melt temperature of the polymer melt is 203 ° C.
  • the air required to stretch the polymer melt emerging from the spinnerets has a temperature of 50 ° C.
  • the drawn continuous filaments are caught on a screen belt and wound up without further consolidation.
  • the basis weight of the polycaprolactone spunbonded nonwoven is 22 g / m2.
  • a polymer mixture of 90% polycaprolactone and 10% polyhydroxybutyrate-hydroxyvalerate copolymer with an MFI value of 34 g / 10 min at 190 ° C / 2.16 kg is melted at 182 ° C.
  • the polymer melt emerging from the spinnerets is stretched with air at a temperature of around 40 ° C.
  • the drawn continuous filaments are caught on a conveyor belt and the nonwoven is wound up without further consolidation.
  • the basis weight of the nonwoven is 23 g / m2.
  • a polymer mixture of 75% polycaprolactone and 25% polyethylene is processed to a spunbonded nonwoven under the same conditions as described in Example 2.
  • All spunbonded nonwovens of Examples 1 to 3 are suitable for use in hygiene products, e.g. as a diaper covering fleece, in agriculture as a mulch film, as an adhesive fleece for the production of textile laminates or for technical applications such as Filter materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP92104068A 1991-06-13 1992-03-10 Non-tissé en filaments continus thermoplastiques et son procédé de fabrication Expired - Lifetime EP0518003B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4119455A DE4119455C1 (fr) 1991-06-13 1991-06-13
DE4119455 1991-06-13

Publications (2)

Publication Number Publication Date
EP0518003A1 true EP0518003A1 (fr) 1992-12-16
EP0518003B1 EP0518003B1 (fr) 1996-05-08

Family

ID=6433825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92104068A Expired - Lifetime EP0518003B1 (fr) 1991-06-13 1992-03-10 Non-tissé en filaments continus thermoplastiques et son procédé de fabrication

Country Status (9)

Country Link
US (1) US5466517A (fr)
EP (1) EP0518003B1 (fr)
JP (1) JP2579716B2 (fr)
AT (1) ATE137816T1 (fr)
BR (1) BR9202227A (fr)
CA (1) CA2071133C (fr)
DE (2) DE4119455C1 (fr)
DK (1) DK0518003T3 (fr)
ES (1) ES2088513T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033874A1 (fr) * 1994-06-03 1995-12-14 Minnesota Mining And Manufacturing Company Microfibres degradables multicouches de type 'melt-blown'
WO1996008535A1 (fr) * 1994-09-16 1996-03-21 The Procter & Gamble Company Compositions polymeres biodegradables et produits en etant faits
WO1996021057A1 (fr) * 1994-12-30 1996-07-11 Minnesota Mining And Manufacturing Company Compositions et articles dispersibles et procede d'elimination de ces compositions et de ces articles
EP0731198A2 (fr) * 1995-03-08 1996-09-11 Unitika Ltd. Etoffe non-tissée de filaments biodégradable et sa méthode de fabrication
WO1997034953A1 (fr) * 1996-03-19 1997-09-25 The Procter & Gamble Company Compositions de polymeres biodegradables et produits associes

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06508868A (ja) * 1991-06-26 1994-10-06 ザ、プロクター、エンド、ギャンブル、カンパニー 生分解性液体不浸透性フィルム
ATE147995T1 (de) * 1991-06-26 1997-02-15 Procter & Gamble Saugfähige einwegartikel mit biodegradierbare schutzfolien
EP0825221B1 (fr) * 1992-05-08 2001-07-11 Showa Highpolymer Co., Ltd. Feuille en polyester
EP0637642B1 (fr) * 1993-01-07 2002-02-13 Unitika Ltd. Fibre de liage et tissu non tisse produit a partir de celle-ci
US5646077A (en) * 1993-01-07 1997-07-08 Unitika Ltd Binder fiber and nonwoven fabrics using the fiber
AU741001B2 (en) * 1994-09-16 2001-11-22 Procter & Gamble Company, The Biodegradable polymeric compositions and products thereof
US6579814B1 (en) 1994-12-30 2003-06-17 3M Innovative Properties Company Dispersible compositions and articles of sheath-core microfibers and method of disposal for such compositions and articles
AU6289996A (en) * 1995-06-30 1997-02-05 Kimberly-Clark Corporation Water-dispersible fibrous nonwoven coform composites
US6165217A (en) 1997-10-02 2000-12-26 Gore Enterprise Holdings, Inc. Self-cohering, continuous filament non-woven webs
DE19809264C2 (de) * 1998-03-04 2003-06-26 Eldra Kunststofftechnik Gmbh Fasergelegeanordnung und Verfahren zur Herstellung eines Vorformlings
DE19815115C2 (de) * 1998-04-03 2002-02-14 Eldra Kunststofftechnik Gmbh Lederkaschiertes Innenausstattungsteil und Verfahren zur Verklebung einer Echtlederschicht mit einem Substrat
US7994078B2 (en) * 2002-12-23 2011-08-09 Kimberly-Clark Worldwide, Inc. High strength nonwoven web from a biodegradable aliphatic polyester
US7604668B2 (en) * 2005-07-29 2009-10-20 Gore Enterprise Holdings, Inc. Composite self-cohered web materials
US7655584B2 (en) * 2005-07-29 2010-02-02 Gore Enterprise Holdings, Inc. Highly porous self-cohered web materials
US7850810B2 (en) * 2005-07-29 2010-12-14 Gore Enterprise Holdings, Inc. Method of making porous self-cohered web materials
US20070026039A1 (en) * 2005-07-29 2007-02-01 Drumheller Paul D Composite self-cohered web materials
US8048503B2 (en) * 2005-07-29 2011-11-01 Gore Enterprise Holdings, Inc. Highly porous self-cohered web materials
US20070026040A1 (en) * 2005-07-29 2007-02-01 Crawley Jerald M Composite self-cohered web materials
US20070155010A1 (en) * 2005-07-29 2007-07-05 Farnsworth Ted R Highly porous self-cohered fibrous tissue engineering scaffold
CA2616886C (fr) * 2005-07-29 2011-11-08 Gore Enterprise Holdings, Inc. Materiaux en bande hautement poreux a auto-cohesion possedant des proprietes hemostatiques
US7655288B2 (en) * 2005-07-29 2010-02-02 Gore Enterprise Holdings, Inc. Composite self-cohered web materials
US20070027551A1 (en) * 2005-07-29 2007-02-01 Farnsworth Ted R Composite self-cohered web materials
WO2007070064A1 (fr) * 2005-12-15 2007-06-21 Kimberly - Clark Worldwide, Inc. Fibres a multicomposants biodegradables
KR101283172B1 (ko) 2006-04-07 2013-07-08 킴벌리-클라크 월드와이드, 인크. 생분해성 부직 라미네이트
MX2009000526A (es) 2006-07-14 2009-01-27 Kimberly Clark Co Copoliester alifatico-aromatico biodegradable para usarse en telas no tejidas.
MX2009000527A (es) 2006-07-14 2009-01-27 Kimberly Clark Co Acido polilactico biodegradable para su uso en telas no tejidas.
EP2044251B1 (fr) 2006-07-14 2019-10-02 NatureWorks LLC Polyester aliphatique biodégradable destiné à être utilisé dans des tissus non tissés
CN101563392B (zh) * 2006-12-15 2013-02-13 金伯利-克拉克环球有限公司 用于形成纤维的生物可降解聚酯
US20100048082A1 (en) * 2006-12-15 2010-02-25 Topolkaraev Vasily A Biodegradable polylactic acids for use in forming fibers
EP2181213B1 (fr) * 2007-08-22 2011-04-20 Kimberly-Clark Worldwide, Inc. Filaments biodégradables multicomposants et nappes non tissées formées à partir de ceux-ci
EP2220277A2 (fr) * 2007-12-13 2010-08-25 Kimberly-Clark Worldwide, Inc. Fibres biodégradables formées à partir d'une composition thermoplastique contenant de l'acide polylactique et un copolymère polyéther
BRPI0822434B1 (pt) * 2008-05-30 2018-05-29 Kimberly-Clark Worldwide, Inc. Trama não tecida, artigo absorvente e método para formar a trama não tecida
US8470222B2 (en) 2008-06-06 2013-06-25 Kimberly-Clark Worldwide, Inc. Fibers formed from a blend of a modified aliphatic-aromatic copolyester and thermoplastic starch
US8841386B2 (en) 2008-06-10 2014-09-23 Kimberly-Clark Worldwide, Inc. Fibers formed from aromatic polyester and polyether copolymer
US20100173507A1 (en) * 2009-01-07 2010-07-08 Samtec, Inc. Electrical connector having multiple ground planes
US7837522B1 (en) 2009-11-12 2010-11-23 Samtec, Inc. Electrical contacts with solder members and methods of attaching solder members to electrical contacts
US8461262B2 (en) 2010-12-07 2013-06-11 Kimberly-Clark Worldwide, Inc. Polylactic acid fibers
CN104233628B (zh) * 2014-09-01 2017-02-15 浙江金三发非织造布有限公司 一种面膜专用无纺布的生产工艺
FR3109162B1 (fr) * 2020-04-14 2022-06-24 Les Laboratoires Osteal Medical Procédé de fabrication d’un structure textile non tissée

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519038A1 (fr) * 1981-12-24 1983-07-01 Freudenberg Carl Procede pour fabriquer des voiles files de polypropylene a faible coefficient de chute
EP0091785A2 (fr) * 1982-04-06 1983-10-19 PFE Limited Teinture à l'état fondu de polyoléfines
DE3932877A1 (de) * 1989-10-02 1991-04-11 Akzo Gmbh Erosionsschutz- und/oder untergrundstabilisationsmatte

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582052A (en) * 1982-03-23 1986-04-15 Repromed, Inc. Povidone-iodine dispensing fiber
JP2795487B2 (ja) * 1989-10-26 1998-09-10 ユニチカ株式会社 繊維積層物
US5053482A (en) * 1990-05-11 1991-10-01 E. I. Du Pont De Nemours And Company Novel polyesters and their use in compostable products such as disposable diapers
JPH07107217B2 (ja) * 1990-06-08 1995-11-15 東レ株式会社 メルトブロー不織布
DE4220795C2 (de) * 1992-06-25 1997-12-11 Freudenberg Carl Fa Flächiges, biologisch abbaubares Trägermaterial für Denitrifikanten in biologisch betriebenen Klärstufen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519038A1 (fr) * 1981-12-24 1983-07-01 Freudenberg Carl Procede pour fabriquer des voiles files de polypropylene a faible coefficient de chute
EP0091785A2 (fr) * 1982-04-06 1983-10-19 PFE Limited Teinture à l'état fondu de polyoléfines
DE3932877A1 (de) * 1989-10-02 1991-04-11 Akzo Gmbh Erosionsschutz- und/oder untergrundstabilisationsmatte

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 002 (C-069)9. Januar 1980 & JP-A-54 138 618 ( TORAY IND INC ) *
WORLD PATENTS INDEX Week 4379, Derwent Publications Ltd., London, GB; AN 79-78351B & JP-A-54 119 594 (AGENCY OF IND SCI) 17. September 1979 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033874A1 (fr) * 1994-06-03 1995-12-14 Minnesota Mining And Manufacturing Company Microfibres degradables multicouches de type 'melt-blown'
WO1996008535A1 (fr) * 1994-09-16 1996-03-21 The Procter & Gamble Company Compositions polymeres biodegradables et produits en etant faits
WO1996021057A1 (fr) * 1994-12-30 1996-07-11 Minnesota Mining And Manufacturing Company Compositions et articles dispersibles et procede d'elimination de ces compositions et de ces articles
EP0731198A2 (fr) * 1995-03-08 1996-09-11 Unitika Ltd. Etoffe non-tissée de filaments biodégradable et sa méthode de fabrication
EP0731198A3 (fr) * 1995-03-08 1998-12-02 Unitika Ltd. Etoffe non-tissée de filaments biodégradable et sa méthode de fabrication
WO1997034953A1 (fr) * 1996-03-19 1997-09-25 The Procter & Gamble Company Compositions de polymeres biodegradables et produits associes

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DE4119455C1 (fr) 1992-09-17
DE59206211D1 (de) 1996-06-13
JP2579716B2 (ja) 1997-02-12
ATE137816T1 (de) 1996-05-15
DK0518003T3 (da) 1996-09-09
CA2071133A1 (fr) 1992-12-14
US5466517A (en) 1995-11-14
EP0518003B1 (fr) 1996-05-08
CA2071133C (fr) 1996-11-05
BR9202227A (pt) 1993-02-02
ES2088513T3 (es) 1996-08-16
JPH05195407A (ja) 1993-08-03

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