FR2318725A1 - Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede - Google Patents

Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede

Info

Publication number
FR2318725A1
FR2318725A1 FR7523222A FR7523222A FR2318725A1 FR 2318725 A1 FR2318725 A1 FR 2318725A1 FR 7523222 A FR7523222 A FR 7523222A FR 7523222 A FR7523222 A FR 7523222A FR 2318725 A1 FR2318725 A1 FR 2318725A1
Authority
FR
France
Prior art keywords
sheet
polypropylene
compsn
extruding
die
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
FR7523222A
Other languages
English (en)
French (fr)
Other versions
FR2318725B1 (enrdf_load_stackoverflow
Inventor
Michel Caron
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.)
Orkem SA
Original Assignee
Chimique des Charbonnages SA
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 Chimique des Charbonnages SA filed Critical Chimique des Charbonnages SA
Priority to FR7523222A priority Critical patent/FR2318725A1/fr
Priority to PT65356A priority patent/PT65356B/pt
Priority to SE7608021A priority patent/SE7608021L/xx
Priority to BE168886A priority patent/BE844099A/xx
Priority to IT50483/76A priority patent/IT1064130B/it
Priority to LU75415A priority patent/LU75415A1/xx
Priority to ZA764281A priority patent/ZA764281B/xx
Priority to BR7604748A priority patent/BR7604748A/pt
Priority to NL7608100A priority patent/NL7608100A/xx
Priority to DE19762633307 priority patent/DE2633307A1/de
Priority to DK335376A priority patent/DK335376A/da
Priority to NO762577A priority patent/NO762577L/no
Priority to ES450072A priority patent/ES450072A1/es
Priority to FI762121A priority patent/FI762121A7/fi
Publication of FR2318725A1 publication Critical patent/FR2318725A1/fr
Application granted granted Critical
Publication of FR2318725B1 publication Critical patent/FR2318725B1/fr
Granted 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • 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
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
FR7523222A 1975-07-24 1975-07-24 Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede Granted FR2318725A1 (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
FR7523222A FR2318725A1 (fr) 1975-07-24 1975-07-24 Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede
PT65356A PT65356B (fr) 1975-07-24 1976-07-12 Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede
SE7608021A SE7608021L (sv) 1975-07-24 1976-07-14 Forfarinssett for framstellning av en lett folie av polypropylen
BE168886A BE844099A (fr) 1975-07-24 1976-07-14 Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede
IT50483/76A IT1064130B (it) 1975-07-24 1976-07-16 Procedimento per l ottenimento di un foglio di polipropilene alleggerito e foglio ottenuto mediante tale procedimento
ZA764281A ZA764281B (en) 1975-07-24 1976-07-19 Method for producing expanded propylene sheet material and sheet produced thereby
LU75415A LU75415A1 (enrdf_load_stackoverflow) 1975-07-24 1976-07-19
BR7604748A BR7604748A (pt) 1975-07-24 1976-07-21 Processo para a obtencao de uma folha leve e folha leve obtida por este processo
NL7608100A NL7608100A (nl) 1975-07-24 1976-07-22 Werkwijze voor het vervaardigen van een ver- licht vel van polypropyleen of ethyleen-propy- leencopolymeer en een dergelijk vel.
DE19762633307 DE2633307A1 (de) 1975-07-24 1976-07-23 Polypropylen-leichtfolie und verfahren zu deren herstellung
DK335376A DK335376A (da) 1975-07-24 1976-07-23 Fremgangsmade til fremstilling af en let folie pa basis af polypropylen eller ethylen propylencopolymere
NO762577A NO762577L (enrdf_load_stackoverflow) 1975-07-24 1976-07-23
ES450072A ES450072A1 (es) 1975-07-24 1976-07-23 Procedimiento de obtencion de una lamina aligerada.
FI762121A FI762121A7 (enrdf_load_stackoverflow) 1975-07-24 1976-07-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7523222A FR2318725A1 (fr) 1975-07-24 1975-07-24 Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede

Publications (2)

Publication Number Publication Date
FR2318725A1 true FR2318725A1 (fr) 1977-02-18
FR2318725B1 FR2318725B1 (enrdf_load_stackoverflow) 1977-12-09

Family

ID=9158337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7523222A Granted FR2318725A1 (fr) 1975-07-24 1975-07-24 Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede

Country Status (4)

Country Link
BE (1) BE844099A (enrdf_load_stackoverflow)
FR (1) FR2318725A1 (enrdf_load_stackoverflow)
SE (1) SE7608021L (enrdf_load_stackoverflow)
ZA (1) ZA764281B (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051377A (enrdf_load_stackoverflow) * 1963-11-07 1900-01-01
FR1393599A (fr) * 1963-02-28 1965-03-26 Haveg Industries Inc Mousse de résine thermoplastique avec pellicule superficielle
FR2130164A2 (enrdf_load_stackoverflow) * 1971-03-16 1972-11-03 Monsanto Chemicals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1393599A (fr) * 1963-02-28 1965-03-26 Haveg Industries Inc Mousse de résine thermoplastique avec pellicule superficielle
GB1051377A (enrdf_load_stackoverflow) * 1963-11-07 1900-01-01
FR2130164A2 (enrdf_load_stackoverflow) * 1971-03-16 1972-11-03 Monsanto Chemicals

Also Published As

Publication number Publication date
SE7608021L (sv) 1977-01-25
ZA764281B (en) 1977-07-27
FR2318725B1 (enrdf_load_stackoverflow) 1977-12-09
BE844099A (fr) 1977-01-14

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Legal Events

Date Code Title Description
ST Notification of lapse