AU9615298A - Method for producing cellulosic shaped bodies - Google Patents

Method for producing cellulosic shaped bodies

Info

Publication number
AU9615298A
AU9615298A AU96152/98A AU9615298A AU9615298A AU 9615298 A AU9615298 A AU 9615298A AU 96152/98 A AU96152/98 A AU 96152/98A AU 9615298 A AU9615298 A AU 9615298A AU 9615298 A AU9615298 A AU 9615298A
Authority
AU
Australia
Prior art keywords
cellulosic
sheet
shaped
solution
film
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.)
Abandoned
Application number
AU96152/98A
Inventor
Peter Gspaltl
Gerold Riedl
Christian Schlossnikl
Andreas Schweigart
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.)
Lenzing AG
Original Assignee
Lenzing AG
Chemiefaser Lenzing AG
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 Lenzing AG, Chemiefaser Lenzing AG filed Critical Lenzing AG
Publication of AU9615298A publication Critical patent/AU9615298A/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Moulding By Coating Moulds (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

The invention relates to a method for producing flat cellulosic films. A solution of cellulose in an aqueous tertiary amine oxide is shaped into a sheet (4) of film using an extrusion nozzle (2) with a longitudinal extrusion gap (3) and transported through an air gap (5) into a precipitation bath (6), where the flat cellulosic film (12) is formed. The inventive method is characterised in that the side edges (7) of the solution which is shaped into a sheet (4) are brought into contact with and joined to cellulosic strips (8), and in that said cellulosic strips (8) are guided on the side edges of the solution which is shaped into a sheet and optionally of the cellulosic flat film in such a way as to prevent transversal shrinkage.
AU96152/98A 1997-10-23 1998-10-21 Method for producing cellulosic shaped bodies Abandoned AU9615298A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT1798/97 1997-10-23
AT0179897A AT405405B (en) 1997-10-23 1997-10-23 METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES
PCT/AT1998/000251 WO1999021700A1 (en) 1997-10-23 1998-10-21 Method for producing cellulosic shaped bodies

Publications (1)

Publication Number Publication Date
AU9615298A true AU9615298A (en) 1999-05-17

Family

ID=3521204

Family Applications (1)

Application Number Title Priority Date Filing Date
AU96152/98A Abandoned AU9615298A (en) 1997-10-23 1998-10-21 Method for producing cellulosic shaped bodies

Country Status (5)

Country Link
EP (1) EP1024944B1 (en)
AT (2) AT405405B (en)
AU (1) AU9615298A (en)
DE (1) DE59802812D1 (en)
WO (1) WO1999021700A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59812212D1 (en) 1997-04-25 2004-12-09 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES
WO2002100926A1 (en) * 2001-06-12 2002-12-19 Ucb S.A. Method for the production of cellulosic flat films
AT410668B (en) * 2001-06-12 2003-06-25 Ucb Sa METHOD FOR THE PRODUCTION OF CELLULOSIC FLAT FILMS
DE102020109417A1 (en) 2020-04-03 2021-10-07 Ing. A. Maurer S.A. Process for the production of tracing paper

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483339A (en) * 1948-01-06 1949-09-27 Gardner Ind Associates Inc Apparatus for laterally stretching continuous sheets
NL222151A (en) * 1956-12-07 1900-01-01
US3444585A (en) * 1964-08-31 1969-05-20 Morio Watanabe Apparatus for hydraulically stretching flexible webs while passing through a liquid bath
US3557262A (en) * 1968-05-10 1971-01-19 Itt Rayonier Inc Method of preparing transparent cellulosic film
JPS6112319A (en) * 1984-06-29 1986-01-20 Mitsui Toatsu Chem Inc Tenter
GB9600006D0 (en) * 1996-01-02 1996-03-06 Courtaulds Fibres Holdings Ltd Polymeric films

Also Published As

Publication number Publication date
EP1024944A1 (en) 2000-08-09
ATE211440T1 (en) 2002-01-15
AT405405B (en) 1999-08-25
WO1999021700A1 (en) 1999-05-06
EP1024944B1 (en) 2002-01-02
DE59802812D1 (en) 2002-02-28
ATA179897A (en) 1998-12-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase