EP1365953A2 - Sacs retractables a additifs antiadherents pour volaille - Google Patents

Sacs retractables a additifs antiadherents pour volaille

Info

Publication number
EP1365953A2
EP1365953A2 EP01987058A EP01987058A EP1365953A2 EP 1365953 A2 EP1365953 A2 EP 1365953A2 EP 01987058 A EP01987058 A EP 01987058A EP 01987058 A EP01987058 A EP 01987058A EP 1365953 A2 EP1365953 A2 EP 1365953A2
Authority
EP
European Patent Office
Prior art keywords
layer
weight
density polyethylene
vinyl acetate
blend
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.)
Withdrawn
Application number
EP01987058A
Other languages
German (de)
English (en)
Other versions
EP1365953A4 (fr
Inventor
Keith D. Lind
John Eckstein
Robert J. Blemberg
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.)
Alcan Packaging Flexible France SAS
Original Assignee
Pechiney Emballage Flexible Europe SAS
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
Priority claimed from US09/718,984 external-priority patent/US6677012B1/en
Application filed by Pechiney Emballage Flexible Europe SAS filed Critical Pechiney Emballage Flexible Europe SAS
Publication of EP1365953A2 publication Critical patent/EP1365953A2/fr
Publication of EP1365953A4 publication Critical patent/EP1365953A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/12—Shape memory
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate

Definitions

  • the bag may be opened and the meat removed for further cutting of the meat into user cuts, for example, for retail cuts or for institutional use.
  • the layer 12 may be a blend of a polymer formed by a polymerization reaction in the presence of a single site catalyst and a suitable polymeric material such as is identified in connection with the description of layer 16 above.
  • the structure may also include embodiments which have a fourth layer 28 over the first layer 22 and a fifth polymeric layer 30 over the third layer 26.
  • the composition of the fourth layer 28 may be selected from the same group of materials from which the composition of the first layer 12 or third layer 16 is selected, and the fifth layer 30 may also be the same composition as the first layer 22 or the third layer 26.
  • layer 30 is a polypropylene
  • an adhesive polymer based on polypropylene is desirably selected for layer 26.
  • adhesives are the extrudable polymers available under the trade designations Admer QF-500, QF550, of QF-551 from Mitsui Petrochemical Company, or Exxon 5610A2.
  • the composition of layer 23 or 30 is an ethylene based polymer or copolymer
  • an adhesive polymer based on ethylene is preferably selected for layer 22, including ethylene homopolymer and copolymers.
  • Such a preferred adhesive composition is an ethylene vinyl acetate copolymer (EVA) containing up to 25% to 30% by weight vinyl acetate.
  • EVA ethylene vinyl acetate copolymer
  • ESCORENE® LD-318 is suitable for the 9.65% of EVA of layers one and four and ESCORENE® LD-712 is suitable for the remaining ethylene vinyl acetate of layers one and two.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

L'invention concerne un film polymère qui comprend trois couches. La première couche contient un mélange d'un copolymère d'éthylène-vinyl acétate, d'un polyéthylène linéaire à faible densité et d'un second copolymère d'éthylène-vinyl acétate. La deuxième couche contient le copolymère d'éthylène-vinyl acétate et la troisième couche contient un mélange de polyéthylène linéaire à faible densité et un polyéthylène à faible densité, la deuxième couche étant placée entre la première et la troisième couche, et chacun des éléments parmi un concentré coloré, un agent glissant et un additif antiadhérent pouvant éventuellement et indépendamment être présent dans la première, la deuxième et la troisième couche.
EP01987058A 2000-11-22 2001-11-19 Sacs retractables a additifs antiadherents pour volaille Withdrawn EP1365953A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US718984 1985-04-02
US09/718,984 US6677012B1 (en) 1998-03-31 2000-11-22 Poultry shrink bags with antiblock additives
PCT/US2001/043803 WO2002042062A2 (fr) 2000-11-22 2001-11-19 Sacs retractables a additifs antiadherents pour volaille

Publications (2)

Publication Number Publication Date
EP1365953A2 true EP1365953A2 (fr) 2003-12-03
EP1365953A4 EP1365953A4 (fr) 2010-11-03

Family

ID=24888340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01987058A Withdrawn EP1365953A4 (fr) 2000-11-22 2001-11-19 Sacs retractables a additifs antiadherents pour volaille

Country Status (7)

Country Link
EP (1) EP1365953A4 (fr)
AU (2) AU2002239314B2 (fr)
BR (1) BR0115679A (fr)
CA (1) CA2429564C (fr)
MX (1) MXPA03004476A (fr)
NZ (1) NZ526464A (fr)
WO (1) WO2002042062A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5972444A (en) * 1991-10-15 1999-10-26 The Dow Chemical Company Polyolefin compositions with balanced shrink properties
US6010792A (en) * 1998-03-31 2000-01-04 American National Can Company Poultry shrink bags
US6074715A (en) * 1993-06-24 2000-06-13 Pechiney Plastic Packaging, Inc. Heat shrinkable barrier bags
WO2000076766A1 (fr) * 1999-06-10 2000-12-21 Pechiney Emballage Flexible Europe Films de polymere utilises comme sacs thermoretractables

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457960A (en) * 1982-04-26 1984-07-03 American Can Company Polymeric and film structure for use in shrink bags

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5972444A (en) * 1991-10-15 1999-10-26 The Dow Chemical Company Polyolefin compositions with balanced shrink properties
US6074715A (en) * 1993-06-24 2000-06-13 Pechiney Plastic Packaging, Inc. Heat shrinkable barrier bags
US6010792A (en) * 1998-03-31 2000-01-04 American National Can Company Poultry shrink bags
WO2000076766A1 (fr) * 1999-06-10 2000-12-21 Pechiney Emballage Flexible Europe Films de polymere utilises comme sacs thermoretractables

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0242062A2 *

Also Published As

Publication number Publication date
CA2429564C (fr) 2009-08-04
WO2002042062A3 (fr) 2002-08-22
EP1365953A4 (fr) 2010-11-03
NZ526464A (en) 2004-10-29
BR0115679A (pt) 2004-02-17
AU3931402A (en) 2002-06-03
AU2002239314B2 (en) 2007-01-04
CA2429564A1 (fr) 2002-05-30
MXPA03004476A (es) 2004-05-17
WO2002042062A2 (fr) 2002-05-30

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Legal Events

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Effective date: 20110621