IT1055900B - Procedimento per la produzione di articoli bi o multistratrati accop piati e coestrusi in materiale termoplastico impermeabili ai gas ai vapori ed agli odori - Google Patents

Procedimento per la produzione di articoli bi o multistratrati accop piati e coestrusi in materiale termoplastico impermeabili ai gas ai vapori ed agli odori

Info

Publication number
IT1055900B
IT1055900B IT2028076A IT2028076A IT1055900B IT 1055900 B IT1055900 B IT 1055900B IT 2028076 A IT2028076 A IT 2028076A IT 2028076 A IT2028076 A IT 2028076A IT 1055900 B IT1055900 B IT 1055900B
Authority
IT
Italy
Prior art keywords
polymer
polymers
gases
extrusion head
temp
Prior art date
Application number
IT2028076A
Other languages
English (en)
Original Assignee
Montedison Spa
Ortolani L
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 Montedison Spa, Ortolani L filed Critical Montedison Spa
Priority to IT2028076A priority Critical patent/IT1055900B/it
Priority to DK062377A priority patent/DK154615C/da
Priority to NLAANVRAGE7701534,A priority patent/NL189238C/xx
Priority to SE7701622A priority patent/SE428542B/xx
Priority to FR7704258A priority patent/FR2341433A1/fr
Priority to CA271,812A priority patent/CA1090971A/en
Priority to GB6290/77A priority patent/GB1544780A/en
Priority to AT0102777A priority patent/AT372903B/de
Priority to CS771031A priority patent/CS210611B2/cs
Priority to CH194177A priority patent/CH616365A5/it
Priority to IN228/CAL/77A priority patent/IN145943B/en
Priority to DE2706882A priority patent/DE2706882C2/de
Priority to ZA00770971A priority patent/ZA77971B/xx
Priority to ES456391A priority patent/ES456391A1/es
Priority to SU772453393A priority patent/SU871735A3/ru
Priority to AU22378/77A priority patent/AU511816B2/en
Priority to GR52799A priority patent/GR82304B/el
Priority to YU00429/77A priority patent/YU39184B/xx
Priority to JP1665977A priority patent/JPS52100561A/ja
Priority to BE175023A priority patent/BE851537A/fr
Priority to BR7701061A priority patent/BR7701061A/pt
Priority to HU77MO974A priority patent/HU179544B/hu
Priority to US05/912,734 priority patent/US4244914A/en
Application granted granted Critical
Publication of IT1055900B publication Critical patent/IT1055900B/it

Links

Classifications

    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • 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
    • 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
    • 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
    • B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
    • B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
    • B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
    • 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
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/007—Using fluid under pressure
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
IT2028076A 1976-02-18 1976-02-18 Procedimento per la produzione di articoli bi o multistratrati accop piati e coestrusi in materiale termoplastico impermeabili ai gas ai vapori ed agli odori IT1055900B (it)

Priority Applications (23)

Application Number Priority Date Filing Date Title
IT2028076A IT1055900B (it) 1976-02-18 1976-02-18 Procedimento per la produzione di articoli bi o multistratrati accop piati e coestrusi in materiale termoplastico impermeabili ai gas ai vapori ed agli odori
DK062377A DK154615C (da) 1976-02-18 1977-02-14 Fremgangsmaade til fremstilling af hullegemer af to eller flere lag
NLAANVRAGE7701534,A NL189238C (nl) 1976-02-18 1977-02-14 Werkwijze voor het vervaardigen van een gelaagd, geextrudeerd, meerlagig voorwerp uit thermoplastisch materiaal en aldus verkregen voorwerp.
SE7701622A SE428542B (sv) 1976-02-18 1977-02-14 Forfarande for framstellning av tva- eller flerskiktsprodukter tillverkade av termoplastmaterial
CA271,812A CA1090971A (en) 1976-02-18 1977-02-15 Producing articles by coextruding polyvinyl alcohol and another thermoplastic material
GB6290/77A GB1544780A (en) 1976-02-18 1977-02-15 Process for preparing bonded and coextruded two-or more -layer articles made of thermoplastic material
FR7704258A FR2341433A1 (fr) 1976-02-18 1977-02-15 Procede de preparation d'articles a deux ou plusieurs couches combinees et coextrudees, faits en matiere thermoplastique, etanches au gaz, a la vapeur et aux odeurs
CS771031A CS210611B2 (en) 1976-02-18 1977-02-16 Manufacturing method of two-layer or multiple-layer objects made from thermoplastic materials
CH194177A CH616365A5 (it) 1976-02-18 1977-02-16
IN228/CAL/77A IN145943B (it) 1976-02-18 1977-02-16
AT0102777A AT372903B (de) 1976-02-18 1977-02-16 Verfahren zur herstellung von zwei- oder mehrschichtigen hohlkoerpern
JP1665977A JPS52100561A (en) 1976-02-18 1977-02-17 Method of producing coaxial extrusion double or multiple layer article with gas* steam and odor resisting thermoplastic material
ES456391A ES456391A1 (es) 1976-02-18 1977-02-17 Un procedimiento para la preparacion de articulos de dos ca-pas o capas multiples de material termoplastico, impermeablea los gases.
SU772453393A SU871735A3 (ru) 1976-02-18 1977-02-17 Слоистое изделие и способ его изготовлени
AU22378/77A AU511816B2 (en) 1976-02-18 1977-02-17 Extruded multilayer containers
DE2706882A DE2706882C2 (de) 1976-02-18 1977-02-17 Verfahren zum Herstellen von zwei- oder mehrschichtigen Gegenständen, die für Gase, Dämpfe und Gerüche undurchlässig sind
YU00429/77A YU39184B (en) 1976-02-18 1977-02-17 Process for manufacture of two-or multilayer articles, made of a thermoplastic material impermeable to gases, vapours or odours, by means of co-extrusion of at least two different thermoplastic polyers one of which is polyvinyl alcohol
ZA00770971A ZA77971B (en) 1976-02-18 1977-02-17 Process for preparing coupled and coextruded two-or multilayer articles made of thermoplastic material,gas-,vapour-and odour-proof
BE175023A BE851537A (fr) 1976-02-18 1977-02-17 Procede de preparation d'articles a deux ou plusieurs couches combinees et coextrudees
GR52799A GR82304B (it) 1976-02-18 1977-02-17
BR7701061A BR7701061A (pt) 1976-02-18 1977-02-18 Processo para preparar artigos de material termoplastico de camada dupla ou multipla,impermeavel a gases,vapores e odores e artigos de superficie fechada
HU77MO974A HU179544B (en) 1976-02-18 1977-02-18 Process for producing tqo- or multi-layer shapes imprenetrable for gases,vapors and odors,from thermoplasts
US05/912,734 US4244914A (en) 1976-02-18 1978-06-05 Process for preparing gas-, vapor- and odor-proof coupled and coextruded multilayer articles of thermoplastic material and closed-surface bodies comprising the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2028076A IT1055900B (it) 1976-02-18 1976-02-18 Procedimento per la produzione di articoli bi o multistratrati accop piati e coestrusi in materiale termoplastico impermeabili ai gas ai vapori ed agli odori

Publications (1)

Publication Number Publication Date
IT1055900B true IT1055900B (it) 1982-01-11

Family

ID=11165386

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2028076A IT1055900B (it) 1976-02-18 1976-02-18 Procedimento per la produzione di articoli bi o multistratrati accop piati e coestrusi in materiale termoplastico impermeabili ai gas ai vapori ed agli odori

Country Status (3)

Country Link
BE (1) BE851537A (it)
IT (1) IT1055900B (it)
ZA (1) ZA77971B (it)

Also Published As

Publication number Publication date
BE851537A (fr) 1977-08-17
ZA77971B (en) 1978-09-27

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950215