CA2380724A1 - Laminate for gum packaging - Google Patents

Laminate for gum packaging Download PDF

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Publication number
CA2380724A1
CA2380724A1 CA002380724A CA2380724A CA2380724A1 CA 2380724 A1 CA2380724 A1 CA 2380724A1 CA 002380724 A CA002380724 A CA 002380724A CA 2380724 A CA2380724 A CA 2380724A CA 2380724 A1 CA2380724 A1 CA 2380724A1
Authority
CA
Canada
Prior art keywords
layer
laminate
electron beam
cured
gum
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
CA002380724A
Other languages
French (fr)
Other versions
CA2380724C (en
Inventor
Scott W. Huffer
Jeffrey M. Schuetz
Don Mcarthur
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.)
Sonoco Development Inc
Original Assignee
Sonoco Development Inc
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 Sonoco Development Inc filed Critical Sonoco Development Inc
Publication of CA2380724A1 publication Critical patent/CA2380724A1/en
Application granted granted Critical
Publication of CA2380724C publication Critical patent/CA2380724C/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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B32B15/085—Layered products comprising a layer of metal comprising metal 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 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B32B27/06—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
    • B32B27/10—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 paper or cardboard
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S206/00—Special receptacle or package
    • Y10S206/80—Chewing gum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
    • Y10T428/1307—Bag or tubular film [e.g., pouch, flexible food casing, envelope, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1338—Elemental metal containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1341—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/24868—Translucent outer layer
    • Y10T428/24876—Intermediate layer contains particulate material [e.g., pigment, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31692—Next to addition polymer from unsaturated monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31801—Of wax or waxy material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y10T428/31895—Paper or wood
    • Y10T428/31899—Addition polymer of hydrocarbon[s] only
    • Y10T428/31902—Monoethylenically unsaturated

Abstract

A laminate for gum packaging is defined. The laminate includes a metal layer, a polymer layer, a paper layer, and an electron beam cured coating. The laminate provides as good or better barrier properties as a conventional laminate for gum packaging. However, the laminate has "reacted-in" slip agents in the electron beam cured coating, thereby avoiding the common problems of slip agent migration. Further, the laminate of the invention is more economical to produce than is the conventional laminate.

Claims (23)

Claims What is claimed is:
1. A gum packaging laminate comprising in order:
a metal foil;
a polymer layer;
a paper layer; and an electron beam cured layer.
2. The laminate of claim 1 further comprising a wax layer disposed on the electron beam cured layer opposite the paper layer.
3. The laminate of claim 1 further comprising an ink layer surface printed on the paper layer, the ink layer being sandwiched between the paper layer and the electron beam cured layer.
4. The laminate of claim 1 wherein the polymer layer comprises polyethylene.
5. The laminate of claim 1 wherein the electron beam cured layer is formed from a combination of oligomers and monomers.
6. The laminate of claim 5 wherein the oligomer is an epoxy acrylate.
7. The laminate of claim 5 wherein the monomer is an acrylate.
8. The laminate of claim 1 wherein the electron beam cured layer is cured by an electron beam having an energy of from about 100 keV to about 170 keV.
9. The laminate of claim 8 wherein the electron beam cured layer is cured by an electron beam having an energy of from about 125 keV to about 135 keV.
10. The laminate of claim 1 wherein the electron beam cured layer is cured by absorbing a dosage of from about 2.0 to about 5.0 MegaRads.
11. The laminate of claim 10 wherein the electron beam cured layer is cured by absorbing a dosage of from about 3.0 to about 4.0 MegaRads.
12. The laminate of claim 1 wherein the electron beam cured layer comprises slip agents, the slip agents being reacted-in.
0 13. A gum package comprising a laminate, the laminate comprising in order:
a polymer layer;
an inorganic layer;
a bonding layer;
a paper layer; and an electron beam cured coating.
14. The gum package of claim 13 wherein the polymer layer is polypropylene.
15. The gum package of claim 13 wherein the polymer layer is polyethylene terephthalate
16. The gum package of claim 13 wherein the polymer layer is metallized to produce the inorganic layer.
17. The gum package of claim 16 wherein the inorganic layer comprises aluminum.
18. The gum package of claim 13 wherein the inorganic layer comprises an oxide selected from the group consisting of Al2O x and SiO x.
19. The gum package of claim 13 wherein the laminate further comprises ink printed on the paper layer, the ink being sandwiched between the paper layer and the electron beam curable layer.
20. The gum package of claim 13 wherein the laminate further comprises wax disposed on the electron beam cured layer opposite the paper layer.
21. The gum package of claim 13 wherein the electron beam cured layer is formed from an epoxy acrylate oligomer and an acrylate monomer.
22. The gum package of claim 13 wherein the electron beam cured layer further comprises slip agents, the slip agents being reacted-in.

23. A method of producing a laminate for gum packaging comprising the steps of:
providing a laminate comprising an inorganic layer, a polymer layer and a paper layer;

printing an ink image on the paper layer;
coating the paper layer with an electron beam curable coating, thereby sandwiching the ink image between the electron beam curable layer and the paper layer; and curing the electron beam curable coating with an electron beam.

24. The method of producing a laminate for gum packaging of claim 23 further comprising the step of coating a wax on to the electron beam cured layer.

25. The method of producing a laminate for gum packaging of
claim 23 wherein the step of curing the coating with an electron beam comprises exposing the electron beam curable coating to an electron beam having energy of from about 100 keV to 170 keV at a dosage of from about 2.0 to 5.0 MegaRads.
CA 2380724 2001-04-04 2002-04-04 Laminate for gum packaging Expired - Fee Related CA2380724C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/826,236 US6926951B2 (en) 2001-04-04 2001-04-04 Laminate for gum packaging
US09/826,236 2001-04-04

Publications (2)

Publication Number Publication Date
CA2380724A1 true CA2380724A1 (en) 2002-10-04
CA2380724C CA2380724C (en) 2010-03-30

Family

ID=25246047

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2380724 Expired - Fee Related CA2380724C (en) 2001-04-04 2002-04-04 Laminate for gum packaging

Country Status (9)

Country Link
US (1) US6926951B2 (en)
EP (1) EP1247642B1 (en)
JP (1) JP2003019766A (en)
AR (1) AR033438A1 (en)
AU (1) AU783232B2 (en)
BR (1) BR0201080A (en)
CA (1) CA2380724C (en)
DE (1) DE60206439T2 (en)
MX (1) MXPA02003451A (en)

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DE60206439D1 (en) 2006-02-16
EP1247642A2 (en) 2002-10-09
AR033438A1 (en) 2003-12-17
JP2003019766A (en) 2003-01-21
AU783232B2 (en) 2005-10-06
EP1247642B1 (en) 2005-10-05
BR0201080A (en) 2003-05-27
US20020146525A1 (en) 2002-10-10
US6926951B2 (en) 2005-08-09
AU1872302A (en) 2002-10-10
CA2380724C (en) 2010-03-30
MXPA02003451A (en) 2004-07-16
EP1247642A3 (en) 2002-12-11

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