FR2386575A1 - Procede pour la fabrication de films ou feuilles de cellulose regeneree - Google Patents

Procede pour la fabrication de films ou feuilles de cellulose regeneree

Info

Publication number
FR2386575A1
FR2386575A1 FR7810143A FR7810143A FR2386575A1 FR 2386575 A1 FR2386575 A1 FR 2386575A1 FR 7810143 A FR7810143 A FR 7810143A FR 7810143 A FR7810143 A FR 7810143A FR 2386575 A1 FR2386575 A1 FR 2386575A1
Authority
FR
France
Prior art keywords
films
sheets
manufacture
regenerated cellulose
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.)
Granted
Application number
FR7810143A
Other languages
English (en)
Other versions
FR2386575B1 (fr
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
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 Chemiefaser Lenzing AG filed Critical Chemiefaser Lenzing AG
Publication of FR2386575A1 publication Critical patent/FR2386575A1/fr
Application granted granted Critical
Publication of FR2386575B1 publication Critical patent/FR2386575B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
    • C08J3/11—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91—Heating, e.g. for cross linking
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B16/00—Regeneration of cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives
    • C08J2301/22—Cellulose xanthate
    • C08J2301/24—Viscose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

La cellulose finement divisée est mélangée à température de 120/150 degrés C avec un mélange solvant du type diméthylsulfooxyde et formaldéhyde, sous agitation permanente. Cette solution, contenue dans un récipient froid est répartie, au moyen d'un racloir 4, sur la surface extérieure d'un tambour 1 qui tourne et passe ensuite dans un four 5 où le solvant s'évapore et où cellulose forme un film. Ce film est ensuite décollé par passage dans un bain d'eau 2.
FR7810143A 1977-04-05 1978-04-05 Procede pour la fabrication de films ou feuilles de cellulose regeneree Granted FR2386575A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT236277A AT345001B (de) 1977-04-05 1977-04-05 Verfahren zur herstellung von filmen oder folien aus regenerierter cellulose und einrichtung zur durchfuehrung des verfahrens

Publications (2)

Publication Number Publication Date
FR2386575A1 true FR2386575A1 (fr) 1978-11-03
FR2386575B1 FR2386575B1 (fr) 1983-05-13

Family

ID=3532938

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810143A Granted FR2386575A1 (fr) 1977-04-05 1978-04-05 Procede pour la fabrication de films ou feuilles de cellulose regeneree

Country Status (4)

Country Link
AT (1) AT345001B (fr)
DE (1) DE2809834A1 (fr)
FR (1) FR2386575A1 (fr)
GB (1) GB1567296A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115532217A (zh) * 2022-11-28 2022-12-30 中天捷晟(天津)新材料科技有限公司 铽动态反应炉脱水收集清理设备及制备氟化铽的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496456A (en) * 1983-06-03 1985-01-29 Exxon Research & Engineering Co. Method for preparing thin regenerated cellulose membranes of high flux and selectivity for organic liquids separations

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311783A1 (fr) * 1975-05-19 1976-12-17 Itt Procede pour produire des articles en cellulose regeneree
FR2358435A1 (fr) * 1976-07-16 1978-02-10 Rhone Poulenc Textile Nouvelles solutions de cellulose conformables et leur procede d'obtention

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311783A1 (fr) * 1975-05-19 1976-12-17 Itt Procede pour produire des articles en cellulose regeneree
FR2358435A1 (fr) * 1976-07-16 1978-02-10 Rhone Poulenc Textile Nouvelles solutions de cellulose conformables et leur procede d'obtention

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115532217A (zh) * 2022-11-28 2022-12-30 中天捷晟(天津)新材料科技有限公司 铽动态反应炉脱水收集清理设备及制备氟化铽的方法

Also Published As

Publication number Publication date
ATA236277A (de) 1977-12-15
AT345001B (de) 1978-08-25
DE2809834A1 (de) 1978-10-19
FR2386575B1 (fr) 1983-05-13
GB1567296A (en) 1980-05-14

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Legal Events

Date Code Title Description
ST Notification of lapse