IT959948B - Processo per la produzione di laminati aventi bassa permeabi lita all ossigeno - Google Patents

Processo per la produzione di laminati aventi bassa permeabi lita all ossigeno

Info

Publication number
IT959948B
IT959948B IT2615472A IT2615472A IT959948B IT 959948 B IT959948 B IT 959948B IT 2615472 A IT2615472 A IT 2615472A IT 2615472 A IT2615472 A IT 2615472A IT 959948 B IT959948 B IT 959948B
Authority
IT
Italy
Prior art keywords
permeabi
lita
laminates
oxygen
production
Prior art date
Application number
IT2615472A
Other languages
English (en)
Italian (it)
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 filed Critical
Application granted granted Critical
Publication of IT959948B publication Critical patent/IT959948B/it

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
    • 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
    • B29C48/03—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
    • B29C48/16—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
    • 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
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • 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
    • 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
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • 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
    • B32B2355/00—Specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of index codes B32B2323/00 - B32B2333/00
    • B32B2355/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • 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
    • B32B2439/70—Food packaging

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Wrappers (AREA)
IT2615472A 1971-06-23 1972-06-23 Processo per la produzione di laminati aventi bassa permeabi lita all ossigeno IT959948B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2953271 1971-06-23
GB198672*[A GB1385196A (en) 1971-06-23 1972-01-14 Process for the production of laminates

Publications (1)

Publication Number Publication Date
IT959948B true IT959948B (it) 1973-11-10

Family

ID=26237119

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2615472A IT959948B (it) 1971-06-23 1972-06-23 Processo per la produzione di laminati aventi bassa permeabi lita all ossigeno

Country Status (15)

Country Link
JP (1) JPS5551747B1 (da)
AR (1) AR196877A1 (da)
BE (1) BE785394A (da)
CA (1) CA968689A (da)
CH (1) CH577382A5 (da)
DE (1) DE2230255C2 (da)
DK (1) DK144002C (da)
ES (1) ES404180A1 (da)
FI (1) FI57550C (da)
FR (1) FR2143440B1 (da)
GB (1) GB1385196A (da)
IT (1) IT959948B (da)
NL (1) NL172930C (da)
NO (1) NO139205C (da)
SE (1) SE399213B (da)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449288A (en) * 1977-09-05 1979-04-18 Kureha Chemical Ind Co Ltd Method of heating and wrapping to vacuum
US4207363A (en) * 1978-03-29 1980-06-10 Union Carbide Corporation Flexible heat-shrinkable multilayer film for packaging primal meat
CA1139513A (en) * 1979-01-03 1983-01-18 Theodore Churma Polyvinylidene chloride and ethylene vinyl acetate film and method for making the same
JPS5775856A (en) * 1980-10-31 1982-05-12 Kureha Chemical Ind Co Ltd Laminated film
US4894107A (en) 1985-05-16 1990-01-16 American National Can Company Process for making multiple layer polymeric films
US7052753B1 (en) 1985-05-16 2006-05-30 Pechiney Emballage Flexible Europe Multiple layer polymeric films and process for making them
US4698111A (en) * 1985-07-15 1987-10-06 W. R. Grace & Co., Cryovac Div. Vinylidene chloride composition and film made therefrom
US4686148A (en) * 1985-07-15 1987-08-11 W. R. Grace & Co., Cryovac Div. Vinylidene chloride composition and film made therefrom
US5019453A (en) * 1985-09-12 1991-05-28 Guerra Richard J Composite material and method of making same
US4935308A (en) * 1985-09-12 1990-06-19 Sanders Associates Composite material and method of making same
US4992335A (en) * 1985-09-12 1991-02-12 Sanders Associates, Inc. Composite material and method of making same
IT1204529B (it) * 1987-04-24 1989-03-03 Grace W R & Co Pellicola multistrato per l'imballaggio di articoli in atmosfera contrallata
US4965136A (en) * 1988-08-16 1990-10-23 W. R. Grace & Co.-Conn. Extruded vinylidene chloride copolymer flexible packaging film
US5030511A (en) * 1989-06-09 1991-07-09 W. R. Grace & Co.-Conn. Extruded vinylidene chloride copolymer flexible packaging film
US5079051A (en) * 1989-12-08 1992-01-07 W. R. Grace & Co.-Conn. High shrink energy/high modulus thermoplastic multi-layer packaging film and bags made therefrom
US5108844A (en) * 1989-12-28 1992-04-28 American National Can Company Blended films, structures therefrom, and methods of making and using them
US5202188A (en) * 1991-08-23 1993-04-13 W. R. Grace & Co.-Conn. Vinylidene chloride film
NZ244002A (en) 1991-08-23 1996-03-26 Grace W R & Co Extrudable composition containing plasticiser, acrylate/styrene polymer and vinylidene chloride copolymer; multilayer polymeric films
US5538770A (en) * 1994-11-18 1996-07-23 W. R. Grace & Co. -Conn. Vinylidene chloride film with controlled gas permeability
US6045924A (en) * 1996-06-19 2000-04-04 Cryovac, Inc. Film from a vinylidene chloride copolymer containing blend
DE102016122818B4 (de) * 2016-11-25 2019-11-28 Waldemar Schmidt Co-extrudierte PVC-Lebensmittelverpackungsfolie und Verfahren zu deren Herstellung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1035119A (en) * 1963-05-10 1966-07-06 Union Carbide Corp Process for preparing graft polymers having high impact strength
FR1484153A (fr) * 1965-07-01 1967-06-09 Dow Chemical Co Film d'emballage et procédé de fabrication de ce film
US3524795A (en) * 1965-07-01 1970-08-18 Dow Chemical Co Packaging film
GB1158140A (en) * 1965-12-08 1969-07-16 Nat Distillers Chem Corp High Barrier Thermoplastic Film
US3337914A (en) * 1966-01-03 1967-08-29 Nat Distillers Chem Corp Stacked extrusion die
GB1130024A (en) * 1966-05-11 1968-10-09 Grace W R & Co Improvements relating to shrink packaging

Also Published As

Publication number Publication date
DE2230255A1 (de) 1973-01-11
NL7208635A (da) 1972-12-28
NO139205C (no) 1979-01-24
FI57550C (fi) 1980-09-10
CA968689A (en) 1975-06-03
BE785394A (fr) 1972-10-16
FR2143440B1 (da) 1976-12-03
SE399213B (sv) 1978-02-06
NO139205B (no) 1978-10-16
JPS5551747B1 (da) 1980-12-26
CH577382A5 (da) 1976-07-15
ES404180A1 (es) 1975-11-16
FR2143440A1 (da) 1973-02-02
NL172930C (nl) 1983-11-16
DK144002B (da) 1981-11-16
DK144002C (da) 1982-04-19
GB1385196A (en) 1975-02-26
DE2230255C2 (de) 1984-06-07
AR196877A1 (es) 1974-02-28
FI57550B (fi) 1980-05-30
NL172930B (nl) 1983-06-16

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