EP0807698A3 - Verfahren und Vorrichtung zur Herstellung von Fibrets aus Zellulosederivaten - Google Patents

Verfahren und Vorrichtung zur Herstellung von Fibrets aus Zellulosederivaten Download PDF

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Publication number
EP0807698A3
EP0807698A3 EP97106492A EP97106492A EP0807698A3 EP 0807698 A3 EP0807698 A3 EP 0807698A3 EP 97106492 A EP97106492 A EP 97106492A EP 97106492 A EP97106492 A EP 97106492A EP 0807698 A3 EP0807698 A3 EP 0807698A3
Authority
EP
European Patent Office
Prior art keywords
fibrets
dope
precipitant
rotor
decelerated
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
EP97106492A
Other languages
English (en)
French (fr)
Other versions
EP0807698A2 (de
EP0807698B1 (de
Inventor
Heinz-Joachim Müller
Rüdiger Leibnitz
Udo Holzki
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.)
Pall Filtersystems GmbH
Original Assignee
SEITZ-FILTER-WERKE GmbH
Seitz Filter Werke GmbH and Co
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 SEITZ-FILTER-WERKE GmbH, Seitz Filter Werke GmbH and Co filed Critical SEITZ-FILTER-WERKE GmbH
Publication of EP0807698A2 publication Critical patent/EP0807698A2/de
Publication of EP0807698A3 publication Critical patent/EP0807698A3/de
Application granted granted Critical
Publication of EP0807698B1 publication Critical patent/EP0807698B1/de
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
    • D01D5/40—Formation of filaments, threads, or the like by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring
    • 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
    • D01D5/18—Formation of filaments, threads, or the like by means of rotating spinnerets
    • 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
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

Um eine wirtschaftlichere Herstellung von Fibrets bei besserer Qualität zu gewährleisten, wird ein Verfahren beschrieben, bei dem ein Dope, der ein Zellulosederivat und ein dafür geeignetes Lösungsmittel enthält, in ein Fällungsmittel eingeleitet und dort einem Scherfeld ausgesetzt, wobei der Dope gefällt und die Fibrets gebildet werden. Anschließend werden die Fibrets, das Lösungsmittel und das Fällungsmittel absepariert. Die aus dem Dope und dem Fällungsmittel gebildete Suspension wird hierbei im Scherfeld mindestens einmal abwechselnd beschleunigt und verzögert. Vorzugsweise wird die Suspension mindestens zweimal abwechselnd beschleunigt und verzögert. Dadurch wird über eine lange Strecke ein hoher mittlerer Turbulenzgrad aufrechterhalten, so daß ein Dope mit hoher Viskosität verarbeitet werden kann. Die Vorrichtung zur Herstellung von Fibrets sieht eine mindestens eine Düse (46-49) in einer Rotor (44) und Stator (43,45) aufweisenden Dispergiereinrichtung (40) vor, die mindestens zwei Zahnkränze (50-53) aufweist, von denen mindestens ein Zahnkranz (50) Bestandteil des Rotors (44) der Dispergiereinrichtung (40) ist.
EP97106492A 1996-04-23 1997-04-18 Verfahren und Vorrichtung zur Herstellung von Fibrets aus Zellulosederivaten Expired - Lifetime EP0807698B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19616010A DE19616010C2 (de) 1996-04-23 1996-04-23 Verfahren und Vorrichtung zur Herstellung von Fibrets (Fibriden) aus Zellulosederivaten
DE19616010 1996-04-23

Publications (3)

Publication Number Publication Date
EP0807698A2 EP0807698A2 (de) 1997-11-19
EP0807698A3 true EP0807698A3 (de) 1998-04-08
EP0807698B1 EP0807698B1 (de) 2002-11-06

Family

ID=7792092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106492A Expired - Lifetime EP0807698B1 (de) 1996-04-23 1997-04-18 Verfahren und Vorrichtung zur Herstellung von Fibrets aus Zellulosederivaten

Country Status (4)

Country Link
US (1) US5868973A (de)
EP (1) EP0807698B1 (de)
AU (1) AU757068B2 (de)
DE (2) DE19616010C2 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19959532C1 (de) * 1999-12-10 2001-10-04 Seitz Schenk Filtersystems Gmb Verfahren und Vorrichtung zur Herstellung von filtrationsaktiven Fasern
MXPA06003599A (es) * 2003-10-01 2006-06-20 Debio Rech Pharma Sa Dispositivo y metodo para producir particulas.
CN101688329B (zh) * 2007-07-11 2012-06-20 松下电器产业株式会社 精细聚合物的制造方法
CZ302503B6 (cs) 2009-12-11 2011-06-22 Contipro C A.S. Zpusob prípravy derivátu kyseliny hyaluronové oxidovaného v poloze 6 glukosaminové cásti polysacharidu selektivne na aldehyd a zpusob jeho modifikace
CZ302504B6 (cs) 2009-12-11 2011-06-22 Contipro C A.S. Derivát kyseliny hyaluronové oxidovaný v poloze 6 glukosaminové cásti polysacharidu selektivne na aldehyd, zpusob jeho prípravy a zpusob jeho modifikace
CZ2012136A3 (cs) 2012-02-28 2013-06-05 Contipro Biotech S.R.O. Deriváty na bázi kyseliny hyaluronové schopné tvorit hydrogely, zpusob jejich prípravy, hydrogely na bázi techto derivátu, zpusob jejich prípravy a pouzití
CZ304651B6 (cs) 2012-05-11 2014-08-20 Contipro Biotech S.R.O. Způsob přípravy mikrovláken, způsob výroby krytů ran, kryty ran a zařízení pro přípravu polysacharidových vláken
CZ304512B6 (cs) 2012-08-08 2014-06-11 Contipro Biotech S.R.O. Derivát kyseliny hyaluronové, způsob jeho přípravy, způsob jeho modifikace a použití
CZ304654B6 (cs) 2012-11-27 2014-08-20 Contipro Biotech S.R.O. Nanomicelární kompozice na bázi C6-C18-acylovaného hyaluronanu, způsob přípravy C6-C18-acylovaného hyaluronanu, způsob přípravy nanomicelární kompozice a stabilizované nanomicelární kompozice a použití
CZ2014150A3 (cs) 2014-03-11 2015-05-20 Contipro Biotech S.R.O. Konjugáty oligomeru kyseliny hyaluronové nebo její soli, způsob jejich přípravy a použití
CZ2014451A3 (cs) 2014-06-30 2016-01-13 Contipro Pharma A.S. Protinádorová kompozice na bázi kyseliny hyaluronové a anorganických nanočástic, způsob její přípravy a použití
CZ309295B6 (cs) 2015-03-09 2022-08-10 Contipro A.S. Samonosný, biodegradabilní film na bázi hydrofobizované kyseliny hyaluronové, způsob jeho přípravy a použití
CZ2015398A3 (cs) 2015-06-15 2017-02-08 Contipro A.S. Způsob síťování polysacharidů s využitím fotolabilních chránicích skupin
CZ306662B6 (cs) 2015-06-26 2017-04-26 Contipro A.S. Deriváty sulfatovaných polysacharidů, způsob jejich přípravy, způsob jejich modifikace a použití
CZ308106B6 (cs) 2016-06-27 2020-01-08 Contipro A.S. Nenasycené deriváty polysacharidů, způsob jejich přípravy a jejich použití
WO2024206270A2 (en) * 2023-03-29 2024-10-03 Eastman Chemical Company Methods of making cellulose ester microbeads with a solvent containing water
WO2024206272A2 (en) * 2023-03-29 2024-10-03 Eastman Chemical Company Methods of making cellulose ester microbeads with solvent recovery and recycle
CN119710953A (zh) * 2024-11-28 2025-03-28 浙江理工大学 一种用于生产并列型复合微纳米纤维的离心纺喷丝器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047862A (en) * 1975-10-24 1977-09-13 Celanese Corporation Cellulose ester fibrillar structure
US4237081A (en) * 1978-04-03 1980-12-02 Gulf Oil Corporation Method for preparation of fibrils

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342921A (en) * 1966-03-16 1967-09-19 West Virginia Pulp & Paper Co Process for producing fibrous filler having high wet end retention
JPS491241B1 (de) * 1969-10-24 1974-01-12
US3842007A (en) * 1973-02-15 1974-10-15 E & J Winery Fibrous cellulose acetate filter material
US3961007A (en) * 1973-10-23 1976-06-01 E & J Gallo Winery Continuous process for making fibrous cellulose acetate filter material
DE2516561C3 (de) * 1975-04-16 1979-10-11 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Fibrillen aus Polymerisaten
US4040856A (en) * 1975-06-17 1977-08-09 Crown Zellerbach Corporation Production of discrete cellulose acetate fibers by emulsion flashing
US4192838A (en) * 1976-10-06 1980-03-11 Celanese Corporation Process for producing filter material
DE2646332B2 (de) * 1976-10-14 1979-04-12 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Fibrillen aus fluorhaltigen Polymerisaten
US5175276A (en) * 1990-12-14 1992-12-29 Hoechst Celanese Corporation Process for the production of cellulose ester fibrets
US5071599A (en) * 1990-12-14 1991-12-10 Hoechst Celanese Corporation Process for the production of cellulose ester fibrets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047862A (en) * 1975-10-24 1977-09-13 Celanese Corporation Cellulose ester fibrillar structure
US4237081A (en) * 1978-04-03 1980-12-02 Gulf Oil Corporation Method for preparation of fibrils

Also Published As

Publication number Publication date
US5868973A (en) 1999-02-09
AU1907897A (en) 1997-10-30
EP0807698A2 (de) 1997-11-19
AU757068B2 (en) 2003-01-30
DE19616010C2 (de) 1998-07-09
EP0807698B1 (de) 2002-11-06
DE59708645D1 (de) 2002-12-12
DE19616010A1 (de) 1997-11-06

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