EP0767263A1 - Hydrophiler Vliesstoff auf Basis von Polylactiden - Google Patents

Hydrophiler Vliesstoff auf Basis von Polylactiden Download PDF

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Publication number
EP0767263A1
EP0767263A1 EP96470017A EP96470017A EP0767263A1 EP 0767263 A1 EP0767263 A1 EP 0767263A1 EP 96470017 A EP96470017 A EP 96470017A EP 96470017 A EP96470017 A EP 96470017A EP 0767263 A1 EP0767263 A1 EP 0767263A1
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EP
European Patent Office
Prior art keywords
filaments
nonwoven
polymers
surfactant
polymer
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
EP96470017A
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English (en)
French (fr)
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EP0767263B1 (de
Inventor
Philippe Ehret
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.)
Fiberweb France SAS
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Fiberweb France SAS
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Publication of EP0767263A1 publication Critical patent/EP0767263A1/de
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Publication of EP0767263B1 publication Critical patent/EP0767263B1/de
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
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
    • D01F11/08—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—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
    • D04H3/009—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
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2484—Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2484—Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting
    • Y10T442/2492—Polyether group containing
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric

Definitions

  • the invention relates to a hydrophilic nonwoven and to methods of obtaining it.
  • this invention relates to the production of a polyactide-based nonwoven having hydrophilic properties and allowing its use in articles of personal hygiene (ie diapers), in the medical sector (ie fields), in agriculture (mulching) and other traditional applications of hydrophilic nonwovens.
  • degradable polymers more specifically biodegradable polymers, such as polymers based on lactic acids (abbreviated as PLA) constitutes a solution to these problems.
  • PLA polymers based on lactic acids
  • PLA polymers mentioned (especially PLA) are well known in the medical field. They have been used as raw material for sutures, for various kinds of implants (screws, rods, plates, tubes) and for different controlled diffusion systems.
  • PLA is one of the most promising.
  • PLA provides mechanical and physiocochemical properties that are comparable to those of conventional polymers.
  • PLA In addition to their biodegradability, polymers based on PLA use renewable resources such as sugar beet, corn or whey. For this reason, the production of these polymers does not disturb the balance of global carbon dioxide (greenhouse effect). Composting or incinerating PLA releases the same amount of carbon dioxide as that generated during its production. Incineration of polyolefin waste is relatively expensive because it generates too much heat and that it requires cooling using other materials mixed with the waste. On the other hand, PLA contains 60% less energy than polypropylene or polyethylene, which allows better temperature control during incineration.
  • PLA-based nonwovens like PP-based nonwovens, are naturally hydrophobic.
  • the hydrophilic nature can be obtained by surface treatment of the nonwoven or by injection into the extruder with the products traditionally used for nonwovens based on polypropylene.
  • the surface treatment of PLA-based nonwovens has posed a problem for the applicant because it is done using aqueous solutions either by licking, or by spraying or by application of foam.
  • this treatment brings about a certain level of critical humidity during and after the treatment (in fact the degradation is generated by hydrolysis) which must be checked before the packaging of the nonwoven and its shipment.
  • the invention relates to obtaining biodegradable nonwovens based on polylactides having permanent hydrophilicity.
  • the raw material used in the invention comprises polymers based on PLA comprising poly (L-lactic acid) (PLLA) or poly (D-lactic acid) (PDLA), or poly (DL-lactic acid) co -polymers, with a DL ratio varying from 0% to 100%, or mixtures of the polymers mentioned.
  • PLA poly (L-lactic acid)
  • PDLA poly (D-lactic acid)
  • DL-lactic acid) co -polymers with a DL ratio varying from 0% to 100%, or mixtures of the polymers mentioned.
  • These polymers based on PLA forming this raw material can also contain from 0.1% to 15% of plasticizer and / or from 0.1% to 5% of monomers and / or from 0.001% to 5% of different kinds of stabilizers, pigments, etc ...
  • the nonwoven consists of fibers or continuous filaments with a diameter between 0.1 and 100 ⁇ m preferably.
  • This nonwoven can be obtained by different processes, for example by the two continuous spinning (Lurgi, S-tex) or melt-blown (known as melt blown) processes and described below. If a hydrophilic treatment is added to it, it will be carried out either by licking, or by spraying, or by application of foam, or by injection into the surfactant extruder.
  • a hydrophilic treatment is added to it, it will be carried out either by licking, or by spraying, or by application of foam, or by injection into the surfactant extruder.
  • FIG. 1 shows a presentation of the continuous direct spinning process (ie Stex) comprising a hopper (1a) for raw material, an extruder (2a), a screw (2'a), a die (3a), a carpet (4a), a grille (5a), a system for guiding the web (6a) and winding tension adjustment, a winding (7a), a fiber cooling system (8a), a slot for drawing (11a), a drawing draw (11'a).
  • Stex continuous direct spinning process
  • the polymer is melted, is extruded by means of a single or twin screw extruder (2.2a) at a temperature which is preferably between 140 and 280 ° C and is conveyed to a spinning pump before pass through a filter to a die with holes varying from 0.2 to 2.0 mm, preferably from 0.4 to 1.0 mm.
  • the polymer is spun through the die (3a) to the cooling (8) and drawing (11) installation.
  • the cooling can be carried out by means of cooled air, at a temperature preferably varying between 0 and 40 ° C. and the speed varying from 0.1 to 5 m / s, the stretching can be carried out by suction of air or air forced through the stretching system.
  • the stretching system may comprise a slot (11) or may be constituted by a series of tubes or slots.
  • the drawing air speed is preferably between 10 and 400 m / s.
  • the fibers obtained have a decreasing diameter and an oriented structure.
  • the draw ratio is generally from 1.1 to 20, preferably from 2 to 15.
  • the titer of the fibers is preferably between 0.5 and 20 dtex, more particularly from 1 to 10 dtex.
  • the spinning system is followed by a system which randomly layers the fibers on the carpet.
  • the carpet conveys the sheet of fibers to a calender (5) heated to a temperature preferably varying from 40 to 160 ° C, more particularly from 60 to 110 ° C.
  • Another slot can be installed before the grille in order to obtain a structured nonwoven of several similar or different layers.
  • the basic weight can be adjusted according to the speed. It is generally between 5-200 g / m 2 , depending on the application.
  • the diagram in Figure 2 represents the MB process: a raw material hopper (1b), an extruder (2b), a die (3b), a forming mat (4b), a calender (5b), a winder (6b) , a blowing (9b), a suction (11b).
  • the MB process includes an extruder for melting the polymer. Extrusion temperatures are preferably between 150 ° C and 280 ° C.
  • the polymer is transported from the extruder to the die.
  • the die has only one row of holes. The holes have a diameter of 0? 2 to 2 mm.
  • the base weight of the mat MB is adjusted as a function of the speed of the mat and is preferably between 5 and 100 g / m 2 .
  • the fiber diameter is normally between 0.1 and 20 ⁇ m, preferably between 0.5 and 10 ⁇ m.
  • the hydrophilic treatment is carried out using surfactants such as silicone-polyether copolymers (ie Silwet (registered trademark) 12037 or Nuwet (registered trademark) 500 from the company OSI Specialties, 4 Place des Maschinen-Unis, Silic 220, 94518 Rungis Cedex).
  • surfactants such as silicone-polyether copolymers (ie Silwet (registered trademark) 12037 or Nuwet (registered trademark) 500 from the company OSI Specialties, 4 Place des Maschinen-Unis, Silic 220, 94518 Rungis Cedex).
  • silicone-polyether copolymers ie Silwet (registered trademark) 12037 or Nuwet (registered trademark) 500 from the company OSI Specialties, 4 Place des Maschinen-Unis, Silic 220, 94518 Rungis Cedex.
  • Silwet registered trademark
  • Nuwet registered trademark 500 from the company OSI Specialties, 4 Place des Maschinen-Unis, Silic 220, 94518 R
  • the surfactant can be deposited on the sheet in the form of foam.
  • the foam after stabilization, has a lower viscosity than the previously used solution and the amount of surfactant is lower than in the solution. It is therefore easier to dose it accurately.
  • FIG. 4 describes the diagram of the installation for applying foam: a container of solution (15), a pump forming the foam (16), a nozzle for spraying the foam (17), the nonwoven (18).
  • the level of foaming additive is normally between 0.1% and 5%.
  • the use and dose of foaming additive depends on the surfactant.
  • Another method for treating the web with a surfactant is spraying, the solution being sprayed on the surface of the web with compressed air.
  • the last method consists either in injecting the surfactant directly into the main extruder, or in integrating a masterbatch (PLA and surfactant) in the main extruder, or, for surfactants with a point of composition down, incorporate it using a side extruder.
  • the moisture level of the web should be checked after the surfactant treatment and, if necessary, the web should be dried.
  • the first stage of degradation of a PLA-based polymer being hydrolysis, it is necessary to avoid that degradation by hydrolysis begins at the packaging stage in the case of a nonwoven having a certain humidity.
  • a continuous filament nonwoven fabricated according to the Stex process having a weight of 20 g / m 2 and filaments of 2.1 dtex is used as a surface fleece for baby diapers.
  • the strike-through urine values (EDANA test 150.1-90- are between 10 and 15 s, the urine return (rewet) at approximately 0.6 g (EDANA 151.1-92).
  • Silwet registered trademark
  • 7602 the passage of urine is between 2.5 and 3.0 s and the return of urine between 0.8 and 1.0 g.
  • the penetration values under inclined plane ( run-off) are less than 1% These results are remarkable.With polypropylene nonwovens, the values are, after two texts, 25 s, 2.0 g and 100% respectively.
  • a continuous filament nonwoven fabricated according to the Stex process having a weight of 19 g / m 2 and filaments of 3.2 dtex has urine passage time values of 11 s. and 0.7 g of urine return.
  • the treated sheet After treatment with foam with a 10% solution of Nuwet (registered trademark) 500, the treated sheet has values of 2.5 s. for the passage of urine, 4 g for the return of urine, 3.5 s, for the passage of urine after three repetitive tests.

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  • 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)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Woven Fabrics (AREA)
EP96470017A 1995-10-06 1996-09-10 Hydrophiler Vliesstoff auf Basis von Polylactiden Expired - Lifetime EP0767263B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9511957A FR2739632B1 (fr) 1995-10-06 1995-10-06 Non-tisse hydrophile a base de polylactides
FR9511957 1995-10-06

Publications (2)

Publication Number Publication Date
EP0767263A1 true EP0767263A1 (de) 1997-04-09
EP0767263B1 EP0767263B1 (de) 2000-05-10

Family

ID=9483447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96470017A Expired - Lifetime EP0767263B1 (de) 1995-10-06 1996-09-10 Hydrophiler Vliesstoff auf Basis von Polylactiden

Country Status (7)

Country Link
US (1) US5910368A (de)
EP (1) EP0767263B1 (de)
JP (1) JPH09176950A (de)
AT (1) ATE192787T1 (de)
CA (1) CA2187105A1 (de)
DE (1) DE69608199T2 (de)
FR (1) FR2739632B1 (de)

Cited By (3)

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EP0940147A3 (de) * 1998-03-05 2000-11-15 Celanese Acetate, LLC Antiadhäsiver Wundverband aus Celluloseacetat
EP0987993B2 (de) † 1997-06-09 2010-12-29 Kimberly-Clark Worldwide, Inc. Absorbierendes chirurgisches abdecktuch
EP2311359B1 (de) * 2009-10-19 2016-04-27 Eurofilters Holding N.V. Staubsaugerfilterbeutel

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WO2001070287A2 (en) * 2000-03-21 2001-09-27 Kimberly-Clark Worldwide, Inc. Permanently wettable superabsorbent fibers
US6770356B2 (en) 2001-08-07 2004-08-03 The Procter & Gamble Company Fibers and webs capable of high speed solid state deformation
US7994078B2 (en) * 2002-12-23 2011-08-09 Kimberly-Clark Worldwide, Inc. High strength nonwoven web from a biodegradable aliphatic polyester
US20040121680A1 (en) * 2002-12-23 2004-06-24 Kimberly-Clark Worldwide, Inc. Compositions and methods for treating lofty nonwoven substrates
US8395016B2 (en) 2003-06-30 2013-03-12 The Procter & Gamble Company Articles containing nanofibers produced from low melt flow rate polymers
US8487156B2 (en) 2003-06-30 2013-07-16 The Procter & Gamble Company Hygiene articles containing nanofibers
US7264641B2 (en) * 2003-11-10 2007-09-04 Cabot Microelectronics Corporation Polishing pad comprising biodegradable polymer
US20050101228A1 (en) * 2003-11-10 2005-05-12 Cabot Microelectronics Corporation Polishing pad comprising biodegradable polymer
US20050136242A1 (en) * 2003-12-22 2005-06-23 Kimberly-Clark Worldwide, Inc. Porous substrates having one side treated at a higher concentration and methods of treating porous substrates
WO2005103354A1 (en) * 2004-04-19 2005-11-03 The Procter & Gamble Company Articles containing nanofibers for use as barriers
WO2005103355A1 (en) 2004-04-19 2005-11-03 The Procter & Gamble Company Fibers, nonwovens and articles containing nanofibers produced from broad molecular weight distribution polymers
SE528009C2 (sv) * 2004-12-30 2006-08-01 Moelnlycke Health Care Ab Självhäftande förband
EP2128320B1 (de) * 2008-05-29 2013-09-25 Reifenhäuser GmbH & Co. KG Maschinenfabrik Verfahren und Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten
AU2009257361A1 (en) 2008-06-12 2009-12-17 3M Innovative Properties Company Biocompatible hydrophilic compositions
US20110189463A1 (en) * 2008-06-12 2011-08-04 Moore Eric M Melt blown fine fibers and methods of manufacture
CN102365100B (zh) 2009-03-27 2015-04-01 3M创新有限公司 亲水性聚丙烯熔体添加剂
WO2010117612A2 (en) 2009-03-31 2010-10-14 3M Innovative Properties Company Dimensionally stable nonwoven fibrous webs and methods of making and using the same
JP5866295B2 (ja) * 2009-12-17 2016-02-17 スリーエム イノベイティブ プロパティズ カンパニー 寸法安定性不織布繊維ウェブ、並びにこれらの製造及び使用方法
WO2011075619A1 (en) 2009-12-17 2011-06-23 3M Innovative Properties Company Dimensionally stable nonwoven fibrous webs, melt blown fine fibers, and methods of making and using the same
TW201221714A (en) 2010-10-14 2012-06-01 3M Innovative Properties Co Dimensionally stable nonwoven fibrous webs and methods of making and using the same
CA2887807A1 (en) 2012-10-12 2014-04-17 3M Innovative Properties Company Multi-layer articles
CN105671793B (zh) * 2016-03-23 2017-10-27 江苏豪悦实业有限公司 卫生用品表面包覆层用聚乳酸生物降解非织造布制备方法
CN112022305A (zh) * 2020-09-29 2020-12-04 广州宜尚科技有限公司 一种内科药物介入治疗装置
CN113322584A (zh) * 2021-06-16 2021-08-31 南宁侨虹新材料股份有限公司 一种孖纺生产线添加亲水剂新型工艺

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EP0597427A1 (de) * 1992-11-11 1994-05-18 MITSUI TOATSU CHEMICALS, Inc. Biologisch-abbaubarer Vliesstoff und Verfahren zu deren Herstellung
EP0637341A1 (de) 1992-04-24 1995-02-08 THE GOVERNMENT OF THE UNITED STATES OF AMERICA as represented by the SECRETARY OF THE DEPARTMENT OF HEALTH AND HUMAN SERVICES Vorhersagetest für selbstmordverhalten
EP0637641A1 (de) * 1993-08-02 1995-02-08 Fiberweb Sodoca Sarl Vliesstoff bestehend aus Polymeren von Milchsäurederivaten und Herstellverfahren und Anwendung eines solchen Vliesstoffes
JPH0748769A (ja) * 1992-11-11 1995-02-21 Mitsui Toatsu Chem Inc 分解性不織布およびその製造方法

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EP0637341A1 (de) 1992-04-24 1995-02-08 THE GOVERNMENT OF THE UNITED STATES OF AMERICA as represented by the SECRETARY OF THE DEPARTMENT OF HEALTH AND HUMAN SERVICES Vorhersagetest für selbstmordverhalten
EP0597427A1 (de) * 1992-11-11 1994-05-18 MITSUI TOATSU CHEMICALS, Inc. Biologisch-abbaubarer Vliesstoff und Verfahren zu deren Herstellung
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0987993B2 (de) † 1997-06-09 2010-12-29 Kimberly-Clark Worldwide, Inc. Absorbierendes chirurgisches abdecktuch
EP0940147A3 (de) * 1998-03-05 2000-11-15 Celanese Acetate, LLC Antiadhäsiver Wundverband aus Celluloseacetat
EP2311359B1 (de) * 2009-10-19 2016-04-27 Eurofilters Holding N.V. Staubsaugerfilterbeutel

Also Published As

Publication number Publication date
CA2187105A1 (fr) 1997-04-07
US5910368A (en) 1999-06-08
FR2739632B1 (fr) 1997-11-07
FR2739632A1 (fr) 1997-04-11
DE69608199D1 (de) 2000-06-15
DE69608199T2 (de) 2001-02-01
ATE192787T1 (de) 2000-05-15
EP0767263B1 (de) 2000-05-10
JPH09176950A (ja) 1997-07-08

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