FR2208784A1 - Composite shrink wrap film for foods - featuring polyamide core and a subsequently oriented polyethylene based layer - Google Patents

Composite shrink wrap film for foods - featuring polyamide core and a subsequently oriented polyethylene based layer

Info

Publication number
FR2208784A1
FR2208784A1 FR7242931A FR7242931A FR2208784A1 FR 2208784 A1 FR2208784 A1 FR 2208784A1 FR 7242931 A FR7242931 A FR 7242931A FR 7242931 A FR7242931 A FR 7242931A FR 2208784 A1 FR2208784 A1 FR 2208784A1
Authority
FR
France
Prior art keywords
layer
thick
featuring
foods
polyamide
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
FR7242931A
Other languages
French (fr)
Other versions
FR2208784B1 (en
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.)
Soplaril SA
Original Assignee
Soplaril 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 Soplaril SA filed Critical Soplaril SA
Priority to FR7242931A priority Critical patent/FR2208784A1/en
Publication of FR2208784A1 publication Critical patent/FR2208784A1/en
Application granted granted Critical
Publication of FR2208784B1 publication Critical patent/FR2208784B1/fr
Granted legal-status Critical Current

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
    • 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
    • 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
    • B29C51/14—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 using multilayered preforms or sheets
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • 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
    • B32B2323/046—LDPE, i.e. low density 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

Three layer film comprising (a) polypropylene 60-100 mu thick, (b) polyamide 60-80 mu thick, (c) a layer 50-80 mu thick of low density polyethylene and/or an ionomer (e.g. metallic salts of vinyl acetate modified polyethylene) in an amorphous state suitable for biaxial orientation after lamination. Layer (b) should be of polyamide 6 or 6.6. The layers may be bonded using adhesives, pref. polyester-polyurethane based mixt. applied at 1.5 to 3 g/m2 on each interface. Alternate layers may be extrusion laminated. Oriented composite layer combines enhanced H2O and O2 barrier properties with weldability and shrink fit characteristics, while the core layer offers heat resistance support.
FR7242931A 1972-12-01 1972-12-01 Composite shrink wrap film for foods - featuring polyamide core and a subsequently oriented polyethylene based layer Granted FR2208784A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7242931A FR2208784A1 (en) 1972-12-01 1972-12-01 Composite shrink wrap film for foods - featuring polyamide core and a subsequently oriented polyethylene based layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7242931A FR2208784A1 (en) 1972-12-01 1972-12-01 Composite shrink wrap film for foods - featuring polyamide core and a subsequently oriented polyethylene based layer

Publications (2)

Publication Number Publication Date
FR2208784A1 true FR2208784A1 (en) 1974-06-28
FR2208784B1 FR2208784B1 (en) 1975-01-03

Family

ID=9108096

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7242931A Granted FR2208784A1 (en) 1972-12-01 1972-12-01 Composite shrink wrap film for foods - featuring polyamide core and a subsequently oriented polyethylene based layer

Country Status (1)

Country Link
FR (1) FR2208784A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062822A2 (en) * 1981-04-11 1982-10-20 Wolff Walsrode Aktiengesellschaft Laminated sheets and deep-drawn containers made therefrom

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423231A (en) * 1965-05-20 1969-01-21 Ethyl Corp Multilayer polymeric film

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423231A (en) * 1965-05-20 1969-01-21 Ethyl Corp Multilayer polymeric film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062822A2 (en) * 1981-04-11 1982-10-20 Wolff Walsrode Aktiengesellschaft Laminated sheets and deep-drawn containers made therefrom
EP0062822A3 (en) * 1981-04-11 1983-04-20 Wolff Walsrode Aktiengesellschaft Laminated sheets and deep-drawn containers made therefrom

Also Published As

Publication number Publication date
FR2208784B1 (en) 1975-01-03

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Legal Events

Date Code Title Description
ST Notification of lapse