EP0518003B1 - 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 PDFInfo
- Publication number
- EP0518003B1 EP0518003B1 EP92104068A EP92104068A EP0518003B1 EP 0518003 B1 EP0518003 B1 EP 0518003B1 EP 92104068 A EP92104068 A EP 92104068A EP 92104068 A EP92104068 A EP 92104068A EP 0518003 B1 EP0518003 B1 EP 0518003B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filaments
- polycaprolactone
- spunbonded nonwoven
- biodegradable
- 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.)
- Expired - Lifetime
Links
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 from continuous thermoplastic filaments and to a method for its production according to the preamble of claims 1 and 5, known for example from DE-A-3 932 877.
- 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 is to 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, makes it 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 skin irritation or problems with wound tolerance; moreover, they are usually not biodegradable.
- spunbond 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.
- Biodegradable polymers for example thermoplastic cellulose derivatives, previously used for melt spinning to form continuous filaments present difficulties in this process: 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. There is therefore only a very narrow temperature band within which spinning can be carried out.
- DE-A-3 932 877 discloses an erosion protection and / or substrate stabilization mat made of at least predominantly degradable synthetic polymer threads.
- the mat can be made of nonwoven.
- the state of the art states that the polymer threads can be connected, welded or glued together at their crossing points.
- the polymer forming the filaments consists of at least 50% by weight polycaprolactone with an average molecular weight of 35,000 to 70,000 and that the welding of the filaments at their crossing point is autogenous, i.e. solely through their thermoplastic, sticky properties during the placement on each other.
- the type of polycaprolactone mentioned is surprisingly processable 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 the finished filaments within the scope of manual skill on the thermal properties of the polymer can 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. Although the materials of these second components are biodegradable, they 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 of around 60 ° C and an MFI (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 / m.
- 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 / m.
- 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 applications 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.
Claims (5)
- Non-tissé en filaments continus thermoplastiques, qui est constitué, à concurrence d'au moins 50% en poids, par un polymère biodégradable et dont les filaments sont soudés l'un à l'autre à leurs points de croisement, caractérisé en ce que le polymère biodégradable est constitué par de la polycaprolactone possédant un poids moléculaire moyen de 35.000 à 70.000 et en ce que la soudure des filaments à leurs points de croisement se fait uniquement par la thermoplasticité du polymère filamenteux, en l'absence d'un liant supplémentaire.
- Non-tissé selon la revendication 1, caractérisé en ce que les filaments continus sont constitués complètement par de la polycaprolactone.
- Non-tissé selon la revendication 1, caractérisé en ce que les filaments continus sont constitués par un mélange polymère à deux composants, le premier composant étant la polycaprolactone, l'autre étant un polyhydroxybutyrate, un copolymère de polyhydroxybutyrate-hydroxyvalérate, un polylactide ou un polyester-uréthane biodégradables.
- Non-tissé selon la revendication 1, caractérisé en ce que les filaments continus sont constitués par un mélange polymère à deux composants dont le premier composant est la polycaprolactone, l'autre composant étant le polyéthylène, le polypropylène, le polyamide ou un polyester.
- Procédé pour la fabrication d'un non-tissé selon les revendications 1 à 4, dans lequel on achemine aux filières au moyen de pompes à l'état fondu la matière polymère utilisée ou encore le mélange de matières, on la soumet à un filage à travers les buses, on l'étire dans l'air tempéré et on la refroidit tout en la déposant sous forme de filaments pour obtenir un non-tissé, caractérisé en ce qu'on porte à fusion une matière polymère ou un mélange de matières qui contient au moins 50% en poids d'une polycaprolactone biodégradable possédant un poids moléculaire moyen de 35.000 à 70.000, et en ce qu'on règle la température de fusion, ainsi que la température de l'air d'étirage de telle sorte que les filaments au moment de la pose présentent encore une température superficielle élevée et ainsi une adhésivité telles qu'un soudage thermoplastique se déclenche de lui-même aux points de croisement des filaments, sans procéder à une étape supplémentaire de fixation après la pose.
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 EP0518003A1 (fr) | 1992-12-16 |
EP0518003B1 true 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) |
Families Citing this family (44)
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HU216133B (hu) * | 1991-06-26 | 1999-04-28 | Procter And Gamble Co. | Biológiailag lebontható, folyadékot át nem eresztő fólia |
ES2096763T3 (es) * | 1991-06-26 | 1997-03-16 | Procter & Gamble | Articulos absorbentes desechables con laminas posteriores biodegradables. |
EP0569151B1 (fr) * | 1992-05-08 | 1998-03-25 | Showa Highpolymer Co., Ltd. | Matériaux minces de polyesters moussés |
US5939467A (en) * | 1992-06-26 | 1999-08-17 | The Procter & Gamble Company | Biodegradable polymeric compositions and products thereof |
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 |
US5814404A (en) * | 1994-06-03 | 1998-09-29 | Minnesota Mining And Manufacturing Company | Degradable multilayer melt blown microfibers |
AU741001B2 (en) * | 1994-09-16 | 2001-11-22 | Procter & Gamble Company, The | Biodegradable polymeric compositions and products thereof |
US5472518A (en) * | 1994-12-30 | 1995-12-05 | Minnesota Mining And Manufacturing Company | Method of disposal for dispersible compositions and articles |
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 |
TW293049B (fr) * | 1995-03-08 | 1996-12-11 | Unitika Ltd | |
ES2166454T3 (es) * | 1995-06-30 | 2002-04-16 | Kimberly Clark Co | Estructuras compuestas no tejidas, fibrosas, hidro-dispersables. |
WO1997034953A1 (fr) * | 1996-03-19 | 1997-09-25 | The Procter & Gamble Company | Compositions de polymeres biodegradables et produits associes |
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 |
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WO2007015971A2 (fr) * | 2005-07-29 | 2007-02-08 | Gore Enterprise Holdings, Inc. | Materiaux en bande hautement poreux a auto-cohesion possedant des proprietes hemostatiques |
US8048503B2 (en) * | 2005-07-29 | 2011-11-01 | Gore Enterprise Holdings, Inc. | Highly porous self-cohered web materials |
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EP2041341B1 (fr) | 2006-07-14 | 2010-11-03 | Kimberly-Clark Worldwide, Inc. | Copolyester aliphatique aromatique biodégradable destiné aux non-tissés |
KR101297865B1 (ko) | 2006-07-14 | 2013-08-19 | 킴벌리-클라크 월드와이드, 인크. | 부직 웹에 사용하기 위한 생분해성 폴리락트산 |
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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 |
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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 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3151322C2 (de) * | 1981-12-24 | 1983-11-10 | Fa. Carl Freudenberg, 6940 Weinheim | "Verfahren zur Herstellung von Polypropylen-Spinnvliesen mit niedrigem Fallkoeffizienten" |
US4582052A (en) * | 1982-03-23 | 1986-04-15 | Repromed, Inc. | Povidone-iodine dispensing fiber |
CA1255837A (fr) * | 1982-04-06 | 1989-06-13 | P.F.F. Limited | Polyolefines pour teinture en phase liquide |
DE3932877A1 (de) * | 1989-10-02 | 1991-04-11 | Akzo Gmbh | Erosionsschutz- und/oder untergrundstabilisationsmatte |
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 |
-
1991
- 1991-06-13 DE DE4119455A patent/DE4119455C1/de not_active Expired - Lifetime
-
1992
- 1992-03-10 DK DK92104068.9T patent/DK0518003T3/da active
- 1992-03-10 ES ES92104068T patent/ES2088513T3/es not_active Expired - Lifetime
- 1992-03-10 DE DE59206211T patent/DE59206211D1/de not_active Expired - Lifetime
- 1992-03-10 EP EP92104068A patent/EP0518003B1/fr not_active Expired - Lifetime
- 1992-03-10 AT AT92104068T patent/ATE137816T1/de active
- 1992-06-12 CA CA002071133A patent/CA2071133C/fr not_active Expired - Lifetime
- 1992-06-12 US US07/897,500 patent/US5466517A/en not_active Expired - Lifetime
- 1992-06-12 JP JP4153270A patent/JP2579716B2/ja not_active Expired - Lifetime
- 1992-06-15 BR BR929202227A patent/BR9202227A/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US5466517A (en) | 1995-11-14 |
JPH05195407A (ja) | 1993-08-03 |
ATE137816T1 (de) | 1996-05-15 |
BR9202227A (pt) | 1993-02-02 |
ES2088513T3 (es) | 1996-08-16 |
CA2071133C (fr) | 1996-11-05 |
CA2071133A1 (fr) | 1992-12-14 |
DE4119455C1 (fr) | 1992-09-17 |
EP0518003A1 (fr) | 1992-12-16 |
DE59206211D1 (de) | 1996-06-13 |
JP2579716B2 (ja) | 1997-02-12 |
DK0518003T3 (da) | 1996-09-09 |
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