WO2002007970B1 - Material for packing purposes - Google Patents

Material for packing purposes

Info

Publication number
WO2002007970B1
WO2002007970B1 PCT/SE2001/001630 SE0101630W WO0207970B1 WO 2002007970 B1 WO2002007970 B1 WO 2002007970B1 SE 0101630 W SE0101630 W SE 0101630W WO 0207970 B1 WO0207970 B1 WO 0207970B1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
amorphous polyester
polycarbonate
material according
packing
Prior art date
Application number
PCT/SE2001/001630
Other languages
French (fr)
Other versions
WO2002007970A1 (en
Inventor
Karl Nideborn
David Roos
Original Assignee
Akerlund & Rausing Ab
Karl Nideborn
David Roos
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 Akerlund & Rausing Ab, Karl Nideborn, David Roos filed Critical Akerlund & Rausing Ab
Priority to EP01950187A priority Critical patent/EP1326747A1/en
Priority to AU2001271212A priority patent/AU2001271212A1/en
Publication of WO2002007970A1 publication Critical patent/WO2002007970A1/en
Publication of WO2002007970B1 publication Critical patent/WO2002007970B1/en
Priority to NO20030278A priority patent/NO330895B1/en

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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters

Landscapes

  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

The present invention relates to material for packing purposes, which material comprises a first layer, which is heat-resistant, and a second layer, which is heat-sealable, wherein said material comprising a coextruded laminate, where said coextruded laminate comprises polycarbonate and amorphous polyester, wherein said polycarbonate having a melt flow index in the interval from 1.5 to 10.0 and said amorphous polyester having an intrinsic viscosity inthe interval from 0.5 to 0.8.

Claims

AMENDED CLAIMS[received by the International Bureau on 4 February 2002 (04.02.02); original claims 1-12 amended (2 pages)]
1. Thermoformable material for packing purposes, comprising a first layer, which is heat-resistant, and a second layer, which is heat-sealable, wherein said material comprising a coextruded laminate, characterized in that said coextruded laminate comprises polycarbonate and amorphous polyester, wherein said polycarbonate having a melt flow index in the interval from 1.5 to 10.0 and said amorphous polyester having an intrinsic viscosity in the interval from 0.5 to 0.8, and wherein said polycarbonate and said amorphous polyester are thermoformable simultaneously.
2. Material according to Patent Claim 1 , characterized in that the thickness of said polycarbonate layer is in the interval from approx. 2 to 30 μ and the thickness of said amorphous polyester layer is in the interval 20- 1000 μ.
3. Material according to Patent Claim 1 or 2, characterized in that said first layer consists of said polycarbonate and that said second layer consists of said amorphous polyester.
4. Material according to any one of Patent Claims 1 to 3, characterized in that said material exhibits a third layer which forms a gas and/or vapour barrier.
5. Material according to Patent Claim 4, characterized in that said third layer is formed from a coextruded substance having gas and/or vapour barrier properties in said coextruded laminate.
6. Material according to any one of the preceding patent claims, characterized in that said material, from said first layer to said second layer, 12
comprises a coextruded laminate consisting of polycarbonate, amorphous polyester, ethyl vinyl alcohol and amorphous polyester.
7. Material according to any one of the preceding patent claims, characterized in that a layer of polyethylene is laminated onto said material, wherein said layer having a thickness of from 20 to 60 μ.
8. Process for producing a material according to any one of the preceding patent claims, characterized in that said mateπal is coextruded in a single-slot extruder.
9. Process for packing, characterized in that a material according to any one of Patent Claims 1 to 7 is used for said process.
10. Process for packing according to Patent Claim 8, characterized in that said polycarbonate can be thermoformed at the same time as amorphous polyester which is included in said material.
11. Process for packing according to Patent Claim 9 or 10, characterized in that a layer of amorphous polyester in the coextruded laminate is heat- sealed, where appropriate after thermoforming together with the layer of polycarbonate, to compatible material, for example a packing trough.
12. Process for thermoforming, characterized in that a material according to any one of Patent Claims 1 to 7 is used, wherein said polycarbonate being thermoformed at the same time as the amorphous polyester which is included in said material.
PCT/SE2001/001630 2000-07-21 2001-07-16 Material for packing purposes WO2002007970A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP01950187A EP1326747A1 (en) 2000-07-21 2001-07-16 Material for packing purposes
AU2001271212A AU2001271212A1 (en) 2000-07-21 2001-07-16 Material for packing purposes
NO20030278A NO330895B1 (en) 2000-07-21 2003-01-20 Thermoformable material for packaging formula

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0002734-2 2000-07-21
SE0002734A SE523074C2 (en) 2000-07-21 2000-07-21 Materials for packaging purposes

Publications (2)

Publication Number Publication Date
WO2002007970A1 WO2002007970A1 (en) 2002-01-31
WO2002007970B1 true WO2002007970B1 (en) 2002-05-23

Family

ID=20280560

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2001/001630 WO2002007970A1 (en) 2000-07-21 2001-07-16 Material for packing purposes

Country Status (5)

Country Link
EP (1) EP1326747A1 (en)
AU (1) AU2001271212A1 (en)
NO (1) NO330895B1 (en)
SE (1) SE523074C2 (en)
WO (1) WO2002007970A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0219226Y2 (en) * 1985-08-19 1990-05-28
JPH0435890Y2 (en) * 1985-09-11 1992-08-25
EP0270374A3 (en) * 1986-12-04 1989-05-10 Mitsui Petrochemical Industries, Ltd. Molded polyester laminate and use therof
JPH047150A (en) * 1990-04-24 1992-01-10 Kanegafuchi Chem Ind Co Ltd Laminated material for packing food, food packing container composed thereof and production or the container
JPH07186318A (en) 1993-12-27 1995-07-25 Dainippon Printing Co Ltd Deposited film
US6426128B1 (en) * 1998-01-06 2002-07-30 Hna Holdings, Inc. Co-processable multi-layer laminates for forming high strength, haze-free, transparent articles and methods of producing same

Also Published As

Publication number Publication date
EP1326747A1 (en) 2003-07-16
SE523074C2 (en) 2004-03-23
SE0002734L (en) 2002-01-22
NO20030278D0 (en) 2003-01-20
SE0002734D0 (en) 2000-07-21
NO20030278L (en) 2003-02-20
NO330895B1 (en) 2011-08-08
AU2001271212A1 (en) 2002-02-05
WO2002007970A1 (en) 2002-01-31

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