FR2128105A1 - Tearable polyolefin film - by subjecting extruded film to ionising radiation in absence of oxygen and other reactive substances - Google Patents

Tearable polyolefin film - by subjecting extruded film to ionising radiation in absence of oxygen and other reactive substances

Info

Publication number
FR2128105A1
FR2128105A1 FR7107597A FR7107597A FR2128105A1 FR 2128105 A1 FR2128105 A1 FR 2128105A1 FR 7107597 A FR7107597 A FR 7107597A FR 7107597 A FR7107597 A FR 7107597A FR 2128105 A1 FR2128105 A1 FR 2128105A1
Authority
FR
France
Prior art keywords
film
ionising radiation
subjecting
absence
oxygen
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
FR7107597A
Other languages
English (en)
French (fr)
Other versions
FR2128105B1 (2
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.)
Naphtachimie SA
Original Assignee
Naphtachimie 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 Naphtachimie SA filed Critical Naphtachimie SA
Priority to FR7107597A priority Critical patent/FR2128105A1/fr
Priority to IT21260/72A priority patent/IT949760B/it
Priority to BE780180A priority patent/BE780180A/xx
Priority to CH315572A priority patent/CH547321A/fr
Publication of FR2128105A1 publication Critical patent/FR2128105A1/fr
Application granted granted Critical
Publication of FR2128105B1 publication Critical patent/FR2128105B1/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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • 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
    • 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
    • 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
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • 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 Macromolecular Shaped Articles (AREA)
  • Wrappers (AREA)
FR7107597A 1971-03-05 1971-03-05 Tearable polyolefin film - by subjecting extruded film to ionising radiation in absence of oxygen and other reactive substances Granted FR2128105A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7107597A FR2128105A1 (en) 1971-03-05 1971-03-05 Tearable polyolefin film - by subjecting extruded film to ionising radiation in absence of oxygen and other reactive substances
IT21260/72A IT949760B (it) 1971-03-05 1972-03-01 Films facilmente lacerabili costi tuiti da poliolefine
BE780180A BE780180A (fr) 1971-03-05 1972-03-03 Films aisement dechirables constitues de
CH315572A CH547321A (fr) 1971-03-05 1972-03-03 Procede pour traiter des films en polyolefines pour obtenir une bonne aptitude a la dechirure dans toutes les directions du plan des films.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7107597A FR2128105A1 (en) 1971-03-05 1971-03-05 Tearable polyolefin film - by subjecting extruded film to ionising radiation in absence of oxygen and other reactive substances

Publications (2)

Publication Number Publication Date
FR2128105A1 true FR2128105A1 (en) 1972-10-20
FR2128105B1 FR2128105B1 (2) 1974-02-22

Family

ID=9072962

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7107597A Granted FR2128105A1 (en) 1971-03-05 1971-03-05 Tearable polyolefin film - by subjecting extruded film to ionising radiation in absence of oxygen and other reactive substances

Country Status (4)

Country Link
BE (1) BE780180A (2)
CH (1) CH547321A (2)
FR (1) FR2128105A1 (2)
IT (1) IT949760B (2)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0145475A3 (en) * 1983-12-09 1987-09-02 National Research Development Corporation Polymer irradiation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809183A (en) * 1956-03-31 1959-02-18 Siemens Ag Improvements in or relating to processes for influencing the molecular structure of plastics by irradiation, more especially with electrons

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809183A (en) * 1956-03-31 1959-02-18 Siemens Ag Improvements in or relating to processes for influencing the molecular structure of plastics by irradiation, more especially with electrons

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0145475A3 (en) * 1983-12-09 1987-09-02 National Research Development Corporation Polymer irradiation

Also Published As

Publication number Publication date
BE780180A (fr) 1972-09-04
FR2128105B1 (2) 1974-02-22
CH547321A (fr) 1974-03-29
IT949760B (it) 1973-06-11

Similar Documents

Publication Publication Date Title
GB1451157A (en) Multilayer thermoplastic film
JPS5730743A (en) Peelable seal forming heat sealable wrapping film
GB1112025A (en) Method of forming container closure sealing gaskets
ES2006668A6 (es) Material de envasado de alimento procedimiento para preparalo.
ES401295A1 (es) Procedimiento para envasar articulos.
GB1113380A (en) Thermoplastic polymer blend compositions
CA1001819A (en) Filled, biaxially oriented, polymeric film and a process for its preparation
GB1253630A (en) Improvements in and relating to the surface treatment of stretched plastics films
GB1096058A (en) Improvements in or relating to wrapping materials
CA926760A (en) Thermoplastic vacuum packaging process and apparatus
JPS5226584A (en) Process for producing coated polyolefin films
FR2172729A5 (en) Polyolefin food container - sealed with polyethylene terephthalate or aluminium and polyolefin sandwich material
GB1317866A (en) Protection of articles comprising a synthetic resin material from photodegradation by solar radiation and the products so obtained
CA974687A (en) Blends of low density polyethylene and butene/ethylene copolymers and high tear strength blown film made therefrom
GB884050A (en) Improved polymeric composition and containers formed therefrom
FR2128105A1 (en) Tearable polyolefin film - by subjecting extruded film to ionising radiation in absence of oxygen and other reactive substances
GB1235347A (en) A method of enclosing an article in a container
ES474415A1 (es) Procedimiento para preparar peliculas poliolefinicas reves- tidas y termosoldables,con elevada resistencia a la adheren-cia a las barras de soldadura
ES479355A1 (es) Procedimiento para preparar un material laminar resistente a ekevadas temperaturas para envasar productos alimenticios.
JPS5225845A (en) Polyolefin composition having improved adhesivity with nylon resin
FR2079206A1 (en) Composite polypropylene films for packaging
AU6236969A (en) Method of producing plastic sheet packaging material and packages made thereby
JPS5534264A (en) Film of modified high-density polyethylene
FR2276930A1 (fr) Feuilles couplees a base de films polyolefiniques et procede pour leur preparation
CA980968A (en) Biaxially stretched films of polypropylene or copolymers or mixtures of polypropylene and polyethylene

Legal Events

Date Code Title Description
ST Notification of lapse