EP0715007B1 - Fibrides plastiques - Google Patents

Fibrides plastiques Download PDF

Info

Publication number
EP0715007B1
EP0715007B1 EP95117219A EP95117219A EP0715007B1 EP 0715007 B1 EP0715007 B1 EP 0715007B1 EP 95117219 A EP95117219 A EP 95117219A EP 95117219 A EP95117219 A EP 95117219A EP 0715007 B1 EP0715007 B1 EP 0715007B1
Authority
EP
European Patent Office
Prior art keywords
fibrets
plastic
follows
polyester
fibrids
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
Application number
EP95117219A
Other languages
German (de)
English (en)
Other versions
EP0715007A1 (fr
Inventor
Peter Dr. Steinau
Dieter Jungert
Volker Mai
Birgitta Meier
Eckehard Pohl
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.)
Schwarzw?lder Textil Werke Heinrich Kautzmann Gmb
Original Assignee
Steinau Peter Dr
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 Steinau Peter Dr filed Critical Steinau Peter Dr
Publication of EP0715007A1 publication Critical patent/EP0715007A1/fr
Application granted granted Critical
Publication of EP0715007B1 publication Critical patent/EP0715007B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • D01D5/26—Formation of staple fibres
    • 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

Definitions

  • the invention relates to plastic fibrids according to the Preamble of claim 1.
  • Plastic fibrids are not spinnable and not more divisible pure fibers with irregular Fiber morphology. They are made up of the crystallites and probably also put together and put amorphous fiber parts represent the smallest fiber units Possible uses of these fibers are in recent years Years has risen sharply. In addition to the conventional Areas of application, such as in papermaking, can through the growing importance Product recyclability in other sales markets be opened up.
  • Plastic fibrids made of polyethylene are known to date (HDPE, LLDPE) and polypropylene (PP). Getting produced the plastic fibrids in the flash spinning process.
  • the plastics are mixed in a water-solvent mixture emulsified under pressure and temperature and spray the emulsion into a vacuum. It evaporates the solvent, the temperature drops sharply and the plastic is crystallized into fibrids transformed.
  • Plastic fibrids made of polyacrylonitrile (PAN) or Polyaromatics and cellulose acetate are made from prefabricated splicable fibers.
  • the way leads to the production of fibrids via foils or Staple fibers.
  • the film is extruded, cut, stretched and mechanically fibrillated. Under the influence of heat, the film becomes many times the length stretched.
  • the use of the fibrids is essentially oriented on the raw material properties of the starting plastics. In many cases, one is procedural Hydrophilicity is a prerequisite for the possible uses. To open up new applications or existing ones Applications with new product value enhancement Providing properties would be fibrids from others Plastics, especially polyester, are desirable. Try polyester-based fibrids according to the above to produce the described process did not lead to a result. Mechanical fibrillation does not apply because of the crystallization of the film Production in a separate step (fixation) out so that because of their crystallized state can no longer be spliced while due to missing suitable solvent the spinning process is not economically feasible.
  • the invention is based, new task To create plastic fibrids.
  • polyester-based fibrid preferably from a Polyephtalate esters
  • the fibrids are characterized by the desired Fibril fineness and shortness of 0.1 to 5 mm at the Made from.
  • the fibrids according to the invention are characterized in that they consist of a polyester which is injected as a low-viscosity jet into a shear field formed by liquid jets, torn apart by the liquid jets and formed into fibrids by cooling, crystallization and orientation.
  • the polyester-based fibrids have a specific surface area of 1 to 10 m 2 / g and are dispersible in water without pretreatment.
  • the melting point is between 200 - 260 ° C with good long-term heat resistance.
  • the Polyester jet shows a after heating Viscosity below 200 pascals second, preferably below 100 (Pa ⁇ s).
  • the low-viscosity polyester is under a pressure between 100 and 1000 bar high speed in the beam freely in one high-energy shear field sprayed. Form the shear field liquid or gaseous atomizing jets a center are aligned and with high kinetic Energy at pressures between 100 and 1000 bar on the Hit the polyester jet.
  • Atomizing jets from cryogenic liquefied gases like the inert gases nitrogen and argon. Water too can be used at pressures above 100 bar.
  • the one in the shear field with liquid nitrogen jets torn polyester forms on cooling, Crystallization and orientation fibrids.
  • the polyester is melted in an extruder through a nozzle, which the polyester jet geometry determined, with a temperature of 100 ° C to 450 ° C. freely sprayed into the shear field.
  • the spray pressure is at least 100 bar and will be related to his Maximum pressure, for example 1000 bar, only through limited technical and economic limits.
  • the Nozzle system consists of flat jet or full jet nozzles, which at an angle of 30 to 150 ° to Polyester jet are arranged.
  • the Polyester beam torn by the energy of the shear field and at the same time extremely cooled.
  • the kinetic Energy of the atomizing medium preferably one liquefied inert gas, in particular nitrogen and the large temperature difference of up to 650 K. cause such a heavy load on the polyester, that it breaks down into fibrids.
  • the resulting fibrids accumulate at the bottom of the reaction space. she can be removed through an opening in the reaction chamber become.
  • the resulting nitrogen gas is replaced by a Filters and a cyclone into a fan Chimney and thus into the open or into a recovery cycle promoted.
  • the one from the nozzle system of the shear field required nitrogen comes from one insulated tank via a high pressure pump in the liquid Condition and under high pressure in the nozzle system.
  • the fibrids produced show clear variations in density and length of the individual fibril and lie in their free surface under that over emulsion or Dissolving the surfaces of manufactured products. she have more hidden surfaces.
  • the controllability of fibril sizes is beyond that of the invention Process significantly expanded, so that a very fine Pulp can be achieved.
  • Polyalkylene terephthalates belong to the group of Polyephtalate ester.
  • Two different types of Polyalkylene terephthalates are polyethylene terephthalates (PET) and polybutylene terephthalate (PBT). PET and PBT are hard, stiff at room temperature, even at deep ones Cold temperatures impact resistant semi-crystalline Plastics with good sliding and abrasion behavior.
  • PTP is very low viscosity at higher processing temperatures.
  • Celanex Type 2000-2 Manufacturer: Hoechst AG Melt index MVI 250/2: 65 cm 3/10 min Density: 1.30 g / cm 3 Crystalline melting range: 200-225 ° C
  • RT 40 A low-viscosity PTP type from Hoechst AG (RT 40) was divided into fribids in the shear field with cryogenic liquefied nitrogen.
  • RT 40 The physical properties of RT 40 are listed below: Trade name: Impet Type: RT 40 Manufacturer: Hoechst AG Density: 1.3 g / cm 3 Crystalline melting range: 250-260 ° C Parameter: Acid base, terephthalic and isophthalic acid Trial material PET RT 40 temperature jet 340 ° C Zone 1 350 ° C Zone 2 310 ° C Zone 3 200 ° C Nitrogen nozzle Fl.str. 1.02 mm Plastic nozzle Vollstr. 0.47 mm Nitrogen pressure 250 bar Plastic printing 180 bar Spraying time 4-5 sec Sieve beam analysis: Mesh size in um PET 800 100% 630 98.4% 400 95.2% 250 74.4%

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Lubricants (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paper (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (8)

  1. Les fibres plastiques sont caractérisées ainsi:
    elles sont composées d'un polyester qui, en tant que rayon pauvre en viscosité, est injecté dans un champ découpé formé de rayons liquides, cassé par les rayons liquides et formant par refroidessement, cristallisation et orientation des fibres d'une longueur de 0,1 à 5 mm.
  2. Les fibres plastiques sont caractérisées ainsi:
    le rayon de polyester présente une viscosité inférieure à 200 (Pa . s), de préférence inférieure à 100 (Pa . s).
  3. Les fibres plastiques sont caractérisées ainsi:
    Les fibres se composent d'un testeur de polyterephtalat,
  4. Les fibres plastiques sont caractérisées ainsi:
    Les fibres se composent de polyalklenterephtalat.
  5. Les fibres plastiques sont caractérisées ainsi:
    Les fibres se composent de polybutylenterephtalat.
  6. Les fibres plastiques sont caracterisées ainsi:
    Les fibres sont injectées dans le champ découpé formé de rayons liquides à une température au dessons de leur température de décomposition entre 100° C et 450° C et à une pression entre 100 et 1000 bar et sont cassées par les rayons liquides.
  7. Les fibres plastiques sont d'après 1 ou 6 caractérisées ainsi:
    Les rayons liquides sont formés d'un gaz liquéfié gelé d'azote ou d'argon.
  8. Les fibres plastiques sont, d'après 1, 6 ou 7 caractérisées ainsi:
    Les rayons liquides sont injectés à une pression entre 10 et 600 bar sur le rayon de polyester.
EP95117219A 1994-11-24 1995-11-02 Fibrides plastiques Expired - Lifetime EP0715007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4441801 1994-11-24
DE4441801A DE4441801C1 (de) 1994-11-24 1994-11-24 Polyesterfibride

Publications (2)

Publication Number Publication Date
EP0715007A1 EP0715007A1 (fr) 1996-06-05
EP0715007B1 true EP0715007B1 (fr) 1999-02-03

Family

ID=6534016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95117219A Expired - Lifetime EP0715007B1 (fr) 1994-11-24 1995-11-02 Fibrides plastiques

Country Status (8)

Country Link
US (1) US5695695A (fr)
EP (1) EP0715007B1 (fr)
JP (1) JPH08209440A (fr)
AT (1) ATE176505T1 (fr)
DE (1) DE4441801C1 (fr)
ES (1) ES2131740T3 (fr)
FI (1) FI955640A (fr)
ZA (1) ZA959840B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2247423A1 (fr) * 1996-03-06 1997-09-12 Mitsubishi Rayon Co., Ltd. Fibres a base de fibrilles, leur procede de fabrication, buse de filage utilisee pour ce procede, et moulages obtenus a partir de ces fibres
US6168733B1 (en) 1998-08-31 2001-01-02 Eastman Chemical Company Method for forming discrete pellets from viscous materials
DE19959532C1 (de) * 1999-12-10 2001-10-04 Seitz Schenk Filtersystems Gmb Verfahren und Vorrichtung zur Herstellung von filtrationsaktiven Fasern
US10945381B1 (en) 2014-07-02 2021-03-16 Outdoor Product Innovations, Inc. Modular tools with detachable coupling
WO2017196864A1 (fr) 2016-05-09 2017-11-16 North Carolina State University Particules polymères de type fractal et leur utilisation dans diverses applications

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL246230A (fr) * 1958-12-09
DE1934541A1 (de) * 1969-07-08 1971-01-14 Basf Ag Verfahren und Vorrichtung zur Herstellung von Stapelfasern aus thermoplastischen Kunststoffen
BE795724A (fr) * 1972-02-25 1973-08-21 Basf Ag Procede et dispositif de fabrication de fibres courtes en matieres synthetiques thermoplastiques
US4210615A (en) * 1973-05-23 1980-07-01 Basf Aktiengesellschaft Manufacture of thermoplastics fibrids
DE2363671C3 (de) * 1973-12-21 1979-09-20 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Kurzfasern aus Niederdruckpolyäthylen
DE2516561C3 (de) * 1975-04-16 1979-10-11 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Fibrillen aus Polymerisaten
DE2543824C3 (de) * 1975-10-01 1980-05-14 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Fibrillen aus Poly(amid-imid)-harzen und die Fibrillen aus diesen Harzen
DE2646332B2 (de) * 1976-10-14 1979-04-12 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Fibrillen aus fluorhaltigen Polymerisaten
US4128614A (en) * 1977-05-20 1978-12-05 Celanese Corporation Halogenated aromatic polyester fibers prepared via dry-spinning having reduced spin-line static generation
US4340442A (en) * 1978-11-06 1982-07-20 Champion International Corporation Starch fibrids useful in enhancing the physical properties of paper, and process of preparing same
DE2947490A1 (de) * 1979-11-24 1981-06-04 Hoechst Ag, 6000 Frankfurt Polyoxymethylenfibride und verfahren zu ihrer herstellung
US4438172A (en) * 1980-05-28 1984-03-20 Toray Industries, Inc. Heat retaining sheet
US5482773A (en) * 1991-07-01 1996-01-09 E. I. Du Pont De Nemours And Company Activated carbon-containing fibrids

Also Published As

Publication number Publication date
US5695695A (en) 1997-12-09
ATE176505T1 (de) 1999-02-15
FI955640A0 (fi) 1995-11-23
DE4441801C1 (de) 1996-06-05
ZA959840B (en) 1996-05-29
JPH08209440A (ja) 1996-08-13
EP0715007A1 (fr) 1996-06-05
ES2131740T3 (es) 1999-08-01
FI955640A (fi) 1996-05-25

Similar Documents

Publication Publication Date Title
DE68904025T2 (de) Verfahren zur herstellung von thermoplastischen fasern.
EP2632985B1 (fr) Utilisation de mélanges de polymères pour la fabrication des bandelettes en feuille
DE3023726A1 (de) Verfahren zur herstellung von filamenten
EP0407901B1 (fr) Procédé pour la fabrication de fibres de polyéthylène par filage à grande vitesse de polyéthylène à très haut poids moléculaire
DE2118931B2 (de) Verbundmaterial, welches ein organisches Polymeres und ein anorganisches Oxydglas enthält, sowie dessen Verwendung
DE3341590A1 (de) Verfahren und vorrichtung zum bilden eines vliesmaterials
DE3904137A1 (de) Verfahren zur herstellung von verbundstapelfasern aus in eine harzmatrix eingelagerten feinen anorganischen fasern
EP0976854B1 (fr) Fibres à deux composants âme-gaine monofilamentaires
EP1637633A1 (fr) Fibres de polyester, leur procédé de fabrication et leur utilisation.
EP0715007B1 (fr) Fibrides plastiques
DE10359763A1 (de) Polyesterfasern, Verfahren zu deren Herstellung und deren Verwendung
DE10057678A1 (de) Verfahren zur Herstellung von schmelzfähigen Polyestern
WO1998004619A1 (fr) Feuille biodegradable et compostable a etirement monoaxial et a proprietes ameliorees
DE19501123C2 (de) Verfahren zur Herstellung einer Vliesbahn aus thermoplastischen Polymerfilamenten
DE102005033350A1 (de) Polyesterfasern, Verfahren zu deren Herstellung und deren Verwendung
EP0967306B1 (fr) Monofilament à base de polyéthylène-2.6-naphthalate
DE19524356C1 (de) Kunststoff-Fibride aus Polyurethan
DE3902039C1 (fr)
DE3816540A1 (de) Biegefeste polyesterfilamente, ihre herstellung und verwendung
EP0258732A2 (fr) Résines renforcées par des fibres
DE2224615C3 (de) Verfahren zur Herstellung von Folien oder Fasern
DE19915683A1 (de) Polyesterfasern und -filamente und Verfahren zu deren Herstellung
DE102007015318A1 (de) Verfahren zur Herstellung von verstärkten thermoplastischen Kunststoffcomposites und zugehörige Vorrichtung zur Durchführung, sowie derart hergestellte Composites
DE2645360A1 (de) Kohaerenter laenglicher gegenstand
WO2000023640A1 (fr) Procede pour allonger la duree de vie de filaments, de fibres ou de feuilles a base de polymeres biodegradables

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH ES FR GB IT LI NL

17P Request for examination filed

Effective date: 19961205

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19980209

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RBV Designated contracting states (corrected)

Designated state(s): AT CH ES FR GB IT LI NL

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: STEINAU, PETER, DR.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH ES FR GB IT LI NL

REF Corresponds to:

Ref document number: 176505

Country of ref document: AT

Date of ref document: 19990215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

ITF It: translation for a ep patent filed

Owner name: FIAMMENGHI - DOMENIGHETTI

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE EPO REG. 20;SCHWARZWALDER TEXTIL-WERKE HE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990504

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: STEINAU, PETER, DR. TRANSFER- SCHWARZWAELDER TEXTI

Ref country code: CH

Ref legal event code: NV

Representative=s name: DIPL.-ING. ETH H. R. WERFFELI PATENTANWALT

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SCHWARZWAELDER TEXTIL-WERKE HEINRICH KAUTZMANN GMB

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2131740

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: SCHWARZW?LDER TEXTIL-WERKE HEINRICH KAUTZMANN GMB

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011029

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011119

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20011123

Year of fee payment: 7

Ref country code: AT

Payment date: 20011123

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20011126

Year of fee payment: 7

Ref country code: CH

Payment date: 20011126

Year of fee payment: 7

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021102

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030601

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030731

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051102