FI107898B - Sträckt multilagerfilm med EVOH-syrebarriär - Google Patents

Sträckt multilagerfilm med EVOH-syrebarriär Download PDF

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Publication number
FI107898B
FI107898B FI945769A FI945769A FI107898B FI 107898 B FI107898 B FI 107898B FI 945769 A FI945769 A FI 945769A FI 945769 A FI945769 A FI 945769A FI 107898 B FI107898 B FI 107898B
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FI
Finland
Prior art keywords
weight
film
adhesive
layer
ethylene
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Application number
FI945769A
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English (en)
Finnish (fi)
Other versions
FI945769A0 (sv
FI945769A (sv
Inventor
Stephen James Vicik
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Curwood Inc
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Publication of FI945769A0 publication Critical patent/FI945769A0/sv
Publication of FI945769A publication Critical patent/FI945769A/sv
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Publication of FI107898B publication Critical patent/FI107898B/sv

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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
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • 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
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B32B2307/736—Shrinkable
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/91—Product with molecular orientation
    • 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.]
    • Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, 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.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y10T428/1383—Vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit is sandwiched between layers [continuous layer]
    • 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.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable
    • Y10T428/2817—Heat sealable
    • Y10T428/2826—Synthetic resin or polymer
    • 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]
    • Y10T428/31725—Of polyamide
    • Y10T428/31739—Nylon type
    • Y10T428/31743—Next to addition polymer from unsaturated monomer[s]
    • 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]
    • Y10T428/31725—Of polyamide
    • Y10T428/3175—Next to addition polymer from unsaturated monomer[s]
    • 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
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • 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
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • Y10T428/3192—Next to vinyl or vinylidene chloride polymer

Landscapes

  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Wrappers (AREA)

Claims (19)

1. En biaxialt tänjd och orienterad värmekrympbar, flerskiktad film, som är framställd med en dubbelbubbelmetod och som bestär av minst fern skikt, kännetecknad av att de utgörs av: (a) ett kärnskikt, som verkar som syrespärrskikt och som omfattar en polymerblandning, som innehäller c:a 70-85 viktprocent etenvinylalkoholkopolymer (EVOH) och c:a 15-30 viktprocent nylon 6,66-kopolymer, varvid smältpunkten för EVOH är c:a 162-178 °C och den omfattar c:a 36-44 molprocent eten, och varvid polymerblandningen har ett relativt högt smältpunktsmedeltal, och varvid kärnskiktets tjocklek är c:a 0,05-0,1 tusendedelstum (eng. mil) (c:a 1,3-2,5 pm) och varvid den verkar som syrespärrskikt sä, att det genom filmen överförs mindre än c:a 35 cm3/m2 syre pä 24 timmar; (b) ett andra och ett tredje mellanliggande limskikt direkt häftande vid kärnskiktets motställda sidor och som frän fall till fall omfattar en blandning innehällande c:a 35-80 • · · ·.· * viktprocent polyeten med mycket lag täthet och c:a 20-40 viktprocent antingen polyetenbaserat anhydridlim med en smältström som understiger c:a 1,7 g/10 min., eller eten- ; vinyl-acetat-baserat bearbetat anhydridlim med en smältström • · · · som understiger c:a 0,5 g/10 min., varvid blandningen • · · · innehäller c:a 0-40 viktprocent eten-vinylacetat med lag • · · smältström och har en vinylacetathalt om c:a 7-15 viktprocent >>>#. och blandningens smältströmsmedeltal är lägt liksom dess φ « ... smältpunktsmedeltal, vilket understiger smältpunkten hos den • · ·;’* polymerblandning som används för kärnskiktet, varvid dessa • · ' · ’·* andra och tredje mellanliggande limskikt frän fall till fall utgör c:a 2,5-5 % av filmens totala tjocklek; • · · „ · • · • · · • · · ***.* (c) ett fjärde ytskikt, som vid värmeförsegling häftar vid • · *··** sig själv, direkt häftande vid en sida av det andra mellanliggande limskiktet, och som omfattar termoplastiska polymerer med en eten-vinyl-acetat-halt om c:a 0-45 vikt- procent och en lag smältström samt ocksä relativt läg smält-punkt som understiger smältpunkten hos den polymerblandning som används för kärnskiktet, varvid detta fjärde ytskikt bildar c:a 40-70 % av filmens totala tjocklek; samt (d) ett slitstarkt femte ytskikt direkt häftande vid en sida av det tredje mellanliggande limskiktet, och som omfattar termoplastiska polymerer med en eten-vinyl-acetat-halt om c:a 0-45 viktprocent och en lag smältström samt ocksa relativt lag smältpunkt som understiger smältpunkten hos den polymerblandning som används för kärnskiktet, varvid detta femte ytskikt bildar c:a 20-35 % av filmens totala tjocklek; (e) varvid smältpunkten hos antingen det fjärde eller det femte ytskiktet är minst era 105 °C, och (f) den fria krympbarheten i tvärriktningen hos denna film är minst 30 % vid 90°C och filmens totala tjocklek är c:a 1,5- 3,5 tusendedelstum (mil) (c:a 38,1-88,9 pm).
2. Film enligt patentkravet 1, kännetecknad av att det femte ytskiktet är exakt likadant som det fjärde ytskiktet. • · · • · · • a ·
3. Film enligt patentkravet 1, kännetecknad av att säväl : .·. det fjärde som det femte ytskiktet omfattar en polymer- a a · blandning innehallande c:a 60-75 viktprocent polyeten med a ‘V.’. mycket lag täthet och c:a 25-40 viktprocent etenvinylacetat. a a a a
4. Film enligt patentkravet 1, kännetecknad av att antingen * * det fjärde eller det femte ytskiktet omfattar en blandning a a a innehallande c:a 40-60 viktprocent polyeten med mycket lag a täthet, c:a 5-20 viktprocent plastomert eten-alfa-olefin- a kopolymer och c:a 20-40 viktprocent eten-vinylacetat ♦ med en vinylacetathalt om c:a 7-15 viktprocent. a a a a a a aaa · a a a
5. Film enligt patentkravet 1, kännetecknad av att EVOH innehäller c:a 38 molprocent eten och att dess smältström är c:a 8 g/10min.
6. Film enligt patentkravet 1, kännetecknad av att 1immet är ett pä linjär polyeten med lag täthet baserat ämne bearbetat med maleinsyra-anhydrid.
7. Film enligt patentkravet 1, kännetecknad av att c:a 45-60 viktprocent av det andra och tredje mellanliggande limskiktet utgörs av polyeten med mycket lag täthet.
8. Film enligt patentkravet 1, kännetecknad av att c:a 25-35 viktprocent av det andra och det tredje mellanliggande limskiktet utgörs av bearbetat anhydridlim.
9. Film enligt patentkravet 1, kännetecknad av att c:a 10-20 viktprocent av det andra och det tredje mellanliggande limskiktet utgörs av eten-vinylacetat.
10. Film enligt patentkravet 1, kännetecknad av att det andra och det tredje limskiktet utgörs av en blandning innehällande c:a 48-55 viktprocent polyeten med mycket lag täthet och med lag smältström, c:a 15-22 viktprocent eten-vinylacetat med en smältström om c:a 0,25 g/10 min och en « · · *.* · vinylacetathalt 10 %, samt c:a 25-35 viktprocent med :.i.: maleinsyra-anhydrid bearbetat lim baserat pä polyeten med lag • täthet.
• · • · · • · · • · · · ··· 11. Film enligt patentkravet 1, kännetecknad av att det • * · · bearbetade anhydridlimmet, som förekommer i det andra och det tredje mellanliggande limskiktet, är baserat pä eten-vinyl-acetat med en smältström om c:a 0,25 g/10 min, och där • · ... vinylacetathalten hos eten-vinylacetatet är c:a 10 • · **' viktprocent.
« · • · * · · · • : : 12. Film enligt patentkravet 5, kännetecknad av att liitimet j har lag smältström.
• · · • ·· · • *· • · • · *** 13. Film enligt patentkravet 1, kännetecknad av att filmen besträlats med en sträldos om c:a 1-10 MR.
14. Film enligt patentkravet 1, kännetecknad av att kärnskiktet omfattar en blandning innehällande c:a 78-82 viktprocent EVOH och c: a 12-18 viktprocent nylon 6,66.
15. Film enligt patentkravet 1, kännetecknad av att saväl det fjärde som det femte ytskiktet omfattar en blandning innehällande c:a 65-72 viktprocent polyeten med mycket lag täthet med en täthet om c:a 0,912 och med en smältström om c:a 0,19 g/10 min, och c:a 22-28 viktprocent eten-vinylacetat med en vinylacetathalt om c:a 10 %.
16. Film enligt patentkravet 1, kännetecknad av att saväl det fjärde som det femte ytskiktet omfattar en blandning innehällande c:a 42-46 viktprocent polyeten med mycket lag täthet med en täthet om c:a 0,912, c:a 34-38 viktprocent eten-vinylacetat med en vinylacetathalt om c:a 10 %, samt c:a 13-17 viktprocent eten-alfa-olefin-plastomer med en täthet om c:a 0,80 och med en smältström om c:a 1,4 g/10 min och en smältpunkt om c:a 71 °C.
17. Film enligt patentkravet 1, kännetecknad av att det • · · ·.· * fjärde ytskiktet innehäller jonomer.
• · · • · • · · : ·.. 18. Film enligt patentkravet 1, kännetecknad av att dess ; fria krympbarhet i maskinriktningen är minst 20 % vid 90 °C. • · · · • · · ····
19. Film enligt patentkravet 1, kännetecknad av att dess fria krympbarhet säväl i maskinriktningen som i . tvärriktningen är minst 35 %. • · • ·· • · ··· ·· • · • · · ··· • · • · • · · • · • · · • t · • · · · ··» • · • · ···
FI945769A 1993-04-09 1994-12-08 Sträckt multilagerfilm med EVOH-syrebarriär FI107898B (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/044,669 US5382470A (en) 1993-04-09 1993-04-09 EVOH oxygen barrier stretched multilayer film
US4466993 1993-04-09
US9404051 1994-04-08
PCT/US1994/004051 WO1994023945A1 (en) 1993-04-09 1994-04-08 Evoh oxygen barrier stretched multilayer film

Publications (3)

Publication Number Publication Date
FI945769A0 FI945769A0 (sv) 1994-12-08
FI945769A FI945769A (sv) 1995-02-07
FI107898B true FI107898B (sv) 2001-10-31

Family

ID=21933655

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Application Number Title Priority Date Filing Date
FI945769A FI107898B (sv) 1993-04-09 1994-12-08 Sträckt multilagerfilm med EVOH-syrebarriär

Country Status (17)

Country Link
US (2) US5382470A (sv)
EP (1) EP0644828B1 (sv)
JP (1) JP3032296B2 (sv)
AT (1) ATE187389T1 (sv)
AU (1) AU672108C (sv)
BR (1) BR9405337A (sv)
CA (1) CA2120836C (sv)
CZ (1) CZ288954B6 (sv)
DE (1) DE69421987T2 (sv)
DK (1) DK0644828T3 (sv)
ES (1) ES2139072T3 (sv)
FI (1) FI107898B (sv)
HU (1) HU213628B (sv)
IL (1) IL109270A (sv)
NZ (1) NZ265206A (sv)
RU (1) RU2134276C1 (sv)
WO (1) WO1994023945A1 (sv)

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DE69421987D1 (de) 2000-01-13
HUT71506A (en) 1995-12-28
IL109270A0 (en) 1994-07-31
EP0644828A1 (en) 1995-03-29
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US6316067B1 (en) 2001-11-13
ES2139072T3 (es) 2000-02-01
US5382470A (en) 1995-01-17
HU9403515D0 (en) 1995-02-28
IL109270A (en) 1996-08-04
CA2120836A1 (en) 1994-10-10
CA2120836C (en) 2000-06-13
JP3032296B2 (ja) 2000-04-10
JPH08500551A (ja) 1996-01-23
FI945769A0 (sv) 1994-12-08
HU213628B (en) 1997-08-28
RU95105791A (ru) 1996-10-27
NZ265206A (en) 1996-09-25
ATE187389T1 (de) 1999-12-15
CZ309894A3 (en) 1995-05-17
CZ288954B6 (cs) 2001-10-17
RU2134276C1 (ru) 1999-08-10
FI945769A (sv) 1995-02-07
WO1994023945A1 (en) 1994-10-27
BR9405337A (pt) 1999-08-31
AU672108B2 (en) 1996-09-19
DE69421987T2 (de) 2000-06-15
AU6558494A (en) 1994-11-08
AU672108C (en) 2003-08-07
EP0644828B1 (en) 1999-12-08

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