FR2430836A1 - Procede de preparation de pellicules de polyolefines thermosoudables - Google Patents

Procede de preparation de pellicules de polyolefines thermosoudables

Info

Publication number
FR2430836A1
FR2430836A1 FR7917761A FR7917761A FR2430836A1 FR 2430836 A1 FR2430836 A1 FR 2430836A1 FR 7917761 A FR7917761 A FR 7917761A FR 7917761 A FR7917761 A FR 7917761A FR 2430836 A1 FR2430836 A1 FR 2430836A1
Authority
FR
France
Prior art keywords
degrees
unit
preparation
film
polyolefin films
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
FR7917761A
Other languages
English (en)
Other versions
FR2430836B1 (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.)
Moplefan SpA
Original Assignee
Moplefan SpA
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 Moplefan SpA filed Critical Moplefan SpA
Publication of FR2430836A1 publication Critical patent/FR2430836A1/fr
Application granted granted Critical
Publication of FR2430836B1 publication Critical patent/FR2430836B1/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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0014—Extrusion moulding in several steps, i.e. components merging outside the die producing flat articles having components brought in contact outside the extrusion die
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • B29C55/026—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets of preformed plates or sheets coated with a solution, a dispersion or a melt of thermoplastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • B32B2038/0028—Stretching, elongating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de préparation de pellicules polyoléfiniques thermosoudables et ne formant pas de fibrilles. Selon l'invention, on prépare une pellicule de base mono-orientée par extrusion de polymères ou copolymères cristallins d'alpha-oléfines, en refroidissant la pellicule à des températures de 10 à 70 degrés C et avec un étirement longitudinal subséquent à 110-150 degrés C avec des rapports compris entre 1 :4 et 1 : 7; on extrude, sur l'une ou les deux faces de la pellicule de base, le même polymère ou mélange afin que l'épaisseur de la couche de revêtement extrudé soit comprise entre 1/6 et 1/10; on étire transversalement la pellicule enduite à 120-160 degrés C en utilisant des rapports de 1:6 à 1:10; le dessin joint montre une extrudeuse 1, une unité de refroidissement 2, une unité de préchauffage 3, une unité d'étirement longitudinal 4, des groupes d'extrusion 5 et une unité d'étirement transversal 6. L'invention s'applique notamment à la préparation d'emballages.
FR7917761A 1978-07-10 1979-07-09 Procede de preparation de pellicules de polyolefines thermosoudables Granted FR2430836A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7825477A IT1097510B (it) 1978-07-10 1978-07-10 Procedimento per la preparazione di film poliolefinici termosaldabili

Publications (2)

Publication Number Publication Date
FR2430836A1 true FR2430836A1 (fr) 1980-02-08
FR2430836B1 FR2430836B1 (fr) 1983-04-01

Family

ID=11216810

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7917761A Granted FR2430836A1 (fr) 1978-07-10 1979-07-09 Procede de preparation de pellicules de polyolefines thermosoudables

Country Status (12)

Country Link
JP (1) JPS5514299A (fr)
AT (1) ATA477579A (fr)
BE (1) BE877592A (fr)
DE (1) DE2927633A1 (fr)
DK (1) DK286179A (fr)
ES (1) ES482328A1 (fr)
FR (1) FR2430836A1 (fr)
GB (1) GB2024715B (fr)
IT (1) IT1097510B (fr)
NL (1) NL7905317A (fr)
NO (1) NO792259L (fr)
SE (1) SE7905937L (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333968A (en) * 1980-01-25 1982-06-08 Mobil Oil Corporation Thermoplastic packaging films with improved heat-seal characteristics
JPS5725953A (en) * 1980-07-22 1982-02-10 Toray Industries Multilayer laminated polypropylene film
DE3274455D1 (en) * 1981-08-22 1987-01-15 Showa Denko Kk Propylene-ethylene random copolymer, production process thereof, and film derived therefrom
DE3323018A1 (de) * 1983-06-25 1985-01-10 Beiersdorf Ag, 2000 Hamburg Klebeband
FR2603522B1 (fr) * 1986-09-08 1989-06-30 Silec Liaisons Elec Tube souple a coefficient de dilatation lineaire reduit, son procede de fabrication et dispositif en faisant application
GB0101994D0 (en) 2001-01-25 2001-03-14 Dupont Teijin Films Us Ltd Process for the production of coated polumeric film
GB0201764D0 (en) 2002-01-25 2002-03-13 Dupont Teijin Films Us Ltd Multi-layer polymeric film III
GB0316708D0 (en) 2003-07-16 2003-08-20 Dupont Teijin Films Us Ltd Polymeric film
GB0603254D0 (en) 2006-02-17 2006-03-29 Dupont Teijin Films Us Ltd Polyester film
DE102016215730A1 (de) * 2016-08-23 2018-03-01 Contitech Antriebssysteme Gmbh Verfahren zur mehrstufigen Herstellung eines Zug- oder Tragmittels
CN110350155B (zh) * 2018-04-04 2022-01-14 北京师范大学 一种含沿横向拉伸方向取向的纳米纤维状多孔层的复合微孔膜
DE102019215880A1 (de) * 2019-10-15 2021-04-15 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Verfahren und folienreckanlage zur herstellung siegelfähiger biaxial orientierter polyesterbasierter folie
GB202000114D0 (en) 2020-01-06 2020-02-19 Dupont Teijin Films Us Lp Polymeric film tube

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2004492A1 (fr) * 1968-03-22 1969-11-28 Kalle Ag
GB1209392A (en) * 1967-11-04 1970-10-21 Mitsubishi Petrochemical Co Laminated films and method of producing same
DE2637978A1 (de) * 1976-08-24 1978-03-02 Hoechst Ag Heissiegelfaehige kunststoffolie und verfahren zu ihrer herstellung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1209392A (en) * 1967-11-04 1970-10-21 Mitsubishi Petrochemical Co Laminated films and method of producing same
FR2004492A1 (fr) * 1968-03-22 1969-11-28 Kalle Ag
DE2637978A1 (de) * 1976-08-24 1978-03-02 Hoechst Ag Heissiegelfaehige kunststoffolie und verfahren zu ihrer herstellung

Also Published As

Publication number Publication date
FR2430836B1 (fr) 1983-04-01
ES482328A1 (es) 1980-08-16
ATA477579A (de) 1983-05-15
IT7825477A0 (it) 1978-07-10
DK286179A (da) 1980-01-11
GB2024715B (en) 1982-07-21
BE877592A (fr) 1980-01-09
NO792259L (no) 1980-01-11
JPS5514299A (en) 1980-01-31
NL7905317A (nl) 1980-01-14
IT1097510B (it) 1985-08-31
SE7905937L (sv) 1980-01-11
DE2927633A1 (de) 1980-01-31
GB2024715A (en) 1980-01-16

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