GB2360976A - Laminar plastics film - Google Patents

Laminar plastics film

Info

Publication number
GB2360976A
GB2360976A GB0109700A GB0109700A GB2360976A GB 2360976 A GB2360976 A GB 2360976A GB 0109700 A GB0109700 A GB 0109700A GB 0109700 A GB0109700 A GB 0109700A GB 2360976 A GB2360976 A GB 2360976A
Authority
GB
United Kingdom
Prior art keywords
core layer
polyolefin
film
plastics film
laminar plastics
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
GB0109700A
Other versions
GB0109700D0 (en
GB2360976B (en
Inventor
John Robinson
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.)
Dynamic Products Ltd
Original Assignee
Dynamic Products Ltd
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 Dynamic Products Ltd filed Critical Dynamic Products Ltd
Publication of GB0109700D0 publication Critical patent/GB0109700D0/en
Publication of GB2360976A publication Critical patent/GB2360976A/en
Application granted granted Critical
Publication of GB2360976B publication Critical patent/GB2360976B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
    • 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/105—Metal
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/208—Magnetic, paramagnetic
    • 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
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/30—Iron, e.g. steel
    • 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

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

A laminar plastics film is used in food packaging and processing. The film comprises outer sheets of a polyolefin material and a core layer containing metallic material. The core layer is electrically conductive and magnetic so as to be detected by a metal detector. The core layer may be produced by extrusion of a polyolefin with magnetic particles, by printing an outer or inner polyolefin layer with a metal enriched ink, by vapour deposition or by a combination of one or more of these. The film is hygienic and is easily detected by a metal detector on a food production line.
GB0109700A 1998-10-20 1999-10-20 Laminar plastics film Expired - Fee Related GB2360976B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9822842.2A GB9822842D0 (en) 1998-10-20 1998-10-20 Laminar plastics film
PCT/GB1999/003465 WO2000023275A1 (en) 1998-10-20 1999-10-20 Laminar plastics film

Publications (3)

Publication Number Publication Date
GB0109700D0 GB0109700D0 (en) 2001-06-13
GB2360976A true GB2360976A (en) 2001-10-10
GB2360976B GB2360976B (en) 2002-12-11

Family

ID=10840872

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9822842.2A Ceased GB9822842D0 (en) 1998-10-20 1998-10-20 Laminar plastics film
GB0109700A Expired - Fee Related GB2360976B (en) 1998-10-20 1999-10-20 Laminar plastics film

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9822842.2A Ceased GB9822842D0 (en) 1998-10-20 1998-10-20 Laminar plastics film

Country Status (3)

Country Link
AU (1) AU6223099A (en)
GB (2) GB9822842D0 (en)
WO (1) WO2000023275A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060108056A1 (en) * 2004-11-24 2006-05-25 The Boeing Company Method and apparatus for foreign object detection in a composite layer fabrication process
SE528455C2 (en) * 2005-03-02 2006-11-14 Tetra Laval Holdings & Finance Ways to provide a packaging laminate with an identification code, ways to identify a package and a package with an identification code
SE531047C2 (en) * 2005-03-02 2008-12-02 Tetra Laval Holdings & Finance Systems and methods for manufacturing a packaging laminate and packaging containers manufactured from the packaging laminate
GB2428629A (en) * 2005-07-27 2007-02-07 B S Teasdale & Son Ltd Magnetically detectable bag
US7967435B1 (en) * 2010-04-21 2011-06-28 3M Innovative Properties Company Metal detectable lens
US8980982B2 (en) 2011-03-25 2015-03-17 Illinois Tool Works, Inc. Electromagnetic spectrally detectable plastic packaging components
US10619268B2 (en) 2013-11-13 2020-04-14 Illinois Tool Works, Inc. Metal detectable fiber and articles formed from the same
US10753022B2 (en) 2014-07-25 2020-08-25 Illinois Tool Works, Inc. Particle-filled fiber and articles formed from the same
US11542634B2 (en) 2014-07-25 2023-01-03 Illinois Tool Works Inc. Particle-filled fiber and articles formed from the same
ES2824626T3 (en) * 2016-10-03 2021-05-12 Viskase Companies Inc Method of making plastic food packaging films and plastic food packaging films thus produced
US10947664B2 (en) 2018-02-19 2021-03-16 Illinois Tool Works Inc. Metal detectable scouring pad

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044174A (en) * 1979-03-09 1980-10-15 Moplefan Spa Metallized bonded sheets
EP0205758A2 (en) * 1985-03-19 1986-12-30 I.P.M. Industria Plastica Monregalese S.p.A. Packaging material for products sensitive to electric charges and magnetic and electromagnetic fields, and packages made from this material
EP0224834A2 (en) * 1985-12-03 1987-06-10 Reef Industries, Inc. Sealed edge detectable tape
EP0536917A1 (en) * 1991-10-11 1993-04-14 Mobil Oil Corporation Multi-layer high opacity film structure of improved whiteness and machinability
EP0773455A1 (en) * 1995-11-09 1997-05-14 Hutchinson Detectable polymeric protection goods, their preparation procedure and their applications
GB2308308A (en) * 1995-12-20 1997-06-25 Smith & Nephew Metal detectable wound dressing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02166059A (en) * 1988-12-14 1990-06-26 Dainippon Printing Co Ltd Packaging material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044174A (en) * 1979-03-09 1980-10-15 Moplefan Spa Metallized bonded sheets
EP0205758A2 (en) * 1985-03-19 1986-12-30 I.P.M. Industria Plastica Monregalese S.p.A. Packaging material for products sensitive to electric charges and magnetic and electromagnetic fields, and packages made from this material
EP0224834A2 (en) * 1985-12-03 1987-06-10 Reef Industries, Inc. Sealed edge detectable tape
EP0536917A1 (en) * 1991-10-11 1993-04-14 Mobil Oil Corporation Multi-layer high opacity film structure of improved whiteness and machinability
EP0773455A1 (en) * 1995-11-09 1997-05-14 Hutchinson Detectable polymeric protection goods, their preparation procedure and their applications
GB2308308A (en) * 1995-12-20 1997-06-25 Smith & Nephew Metal detectable wound dressing

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A(DAINIPPON PRINTING CI LTD),26 JUNE1990006-26 ABSTRACT *
PATENT ABSTRACTS OF JAPAN vol.014,no.424 (M-1024),12th September 1990 (1990-09-12) &JP02166059A *

Also Published As

Publication number Publication date
AU6223099A (en) 2000-05-08
GB0109700D0 (en) 2001-06-13
GB2360976B (en) 2002-12-11
GB9822842D0 (en) 1998-12-16
WO2000023275A1 (en) 2000-04-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20101020

S28 Restoration of ceased patents (sect. 28/pat. act 1977)

Free format text: APPLICATION FILED

S28 Restoration of ceased patents (sect. 28/pat. act 1977)

Free format text: RESTORATION ALLOWED

Effective date: 20120620

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20131020