DK169144B1 - Flerlags emballagefolie, især til levnedsmidler. - Google Patents

Flerlags emballagefolie, især til levnedsmidler. Download PDF

Info

Publication number: DK169144B1
Authority: DK; Denmark
Prior art keywords: approx; film; layers; polyamide; foil
Prior art date: 1986-02-28

Application number

DK104087A

Other languages

Danish (da)

English (en)

Other versions

DK104087A (da

DK104087D0 (da

Inventor

Gautan P Shah

Ennis M Fant

Original Assignee

Grace W R & Co

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.)

1986-02-28

Filing date

1987-02-27

Publication date

1994-08-29

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27420248&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK169144(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1986-02-28 Priority claimed from US06/834,694 external-priority patent/US4746562A/en

1986-03-21 Priority claimed from US06/842,600 external-priority patent/US4755419A/en

1987-02-27 Application filed by Grace W R & Co filed Critical Grace W R & Co

1987-02-27 Publication of DK104087D0 publication Critical patent/DK104087D0/da

1987-11-03 Publication of DK104087A publication Critical patent/DK104087A/da

1994-08-29 Application granted granted Critical

1994-08-29 Publication of DK169144B1 publication Critical patent/DK169144B1/da

Links

229920006281 multilayer packaging film Polymers 0.000 title claims description 6
235000013305 food Nutrition 0.000 title description 10
239000010410 layer Substances 0.000 claims abstract description 85
239000012792 core layer Substances 0.000 claims abstract description 30
239000000463 material Substances 0.000 abstract description 42
239000000203 mixture Substances 0.000 abstract description 42
229920000219 Ethylene vinyl alcohol Polymers 0.000 abstract description 34
239000004952 Polyamide Substances 0.000 abstract description 27
229920002647 polyamide Polymers 0.000 abstract description 27
239000000853 adhesive Substances 0.000 abstract description 21
230000001070 adhesive effect Effects 0.000 abstract description 21
229920000098 polyolefin Polymers 0.000 abstract description 8
239000002253 acid Substances 0.000 abstract description 2
239000010408 film Substances 0.000 description 88
239000011888 foil Substances 0.000 description 39
229920000092 linear low density polyethylene Polymers 0.000 description 28
239000004707 linear low-density polyethylene Substances 0.000 description 28
229920001577 copolymer Polymers 0.000 description 22
239000004715 ethylene vinyl alcohol Substances 0.000 description 21
-1 polyethylene Polymers 0.000 description 20
239000004743 Polypropylene Substances 0.000 description 17
238000007789 sealing Methods 0.000 description 17
229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 16
229920001155 polypropylene Polymers 0.000 description 16
239000005038 ethylene vinyl acetate Substances 0.000 description 15
238000004806 packaging method and process Methods 0.000 description 15
238000000034 method Methods 0.000 description 14
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 13
239000005977 Ethylene Substances 0.000 description 13
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 13
230000004888 barrier function Effects 0.000 description 13
239000001301 oxygen Substances 0.000 description 13
229910052760 oxygen Inorganic materials 0.000 description 13
230000008569 process Effects 0.000 description 12
229920005989 resin Polymers 0.000 description 11
239000011347 resin Substances 0.000 description 11
229920002292 Nylon 6 Polymers 0.000 description 10
229920000299 Nylon 12 Polymers 0.000 description 9
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
239000004708 Very-low-density polyethylene Substances 0.000 description 8
238000002156 mixing Methods 0.000 description 8
230000003287 optical effect Effects 0.000 description 8
229920001866 very low density polyethylene Polymers 0.000 description 8
239000012790 adhesive layer Substances 0.000 description 7
239000000155 melt Substances 0.000 description 7
239000002344 surface layer Substances 0.000 description 7
239000006239 Easy Processing Channel Substances 0.000 description 6
XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 6
229920000642 polymer Polymers 0.000 description 6
239000000126 substance Substances 0.000 description 5
KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
229920003300 Plexar® Polymers 0.000 description 4
239000004698 Polyethylene Substances 0.000 description 4
239000000654 additive Substances 0.000 description 4
230000008901 benefit Effects 0.000 description 4
229920000573 polyethylene Polymers 0.000 description 4
239000000377 silicon dioxide Substances 0.000 description 4
229920001169 thermoplastic Polymers 0.000 description 4
239000004416 thermosoftening plastic Substances 0.000 description 4
VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 3
150000001408 amides Chemical class 0.000 description 3
150000008064 anhydrides Chemical class 0.000 description 3
238000007664 blowing Methods 0.000 description 3
239000003795 chemical substances by application Substances 0.000 description 3
238000001816 cooling Methods 0.000 description 3
238000009826 distribution Methods 0.000 description 3
229920001684 low density polyethylene Polymers 0.000 description 3
229920001179 medium density polyethylene Polymers 0.000 description 3
238000002844 melting Methods 0.000 description 3
230000008018 melting Effects 0.000 description 3
229920006280 packaging film Polymers 0.000 description 3
239000012785 packaging film Substances 0.000 description 3
239000005022 packaging material Substances 0.000 description 3
230000035515 penetration Effects 0.000 description 3
230000000704 physical effect Effects 0.000 description 3
229920006257 Heat-shrinkable film Polymers 0.000 description 2
239000004594 Masterbatch (MB) Substances 0.000 description 2
229920003354 Modic® Polymers 0.000 description 2
239000004840 adhesive resin Substances 0.000 description 2
229920006223 adhesive resin Polymers 0.000 description 2
230000005540 biological transmission Effects 0.000 description 2
150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
239000012141 concentrate Substances 0.000 description 2
230000007613 environmental effect Effects 0.000 description 2
239000005021 flexible packaging material Substances 0.000 description 2
239000007789 gas Substances 0.000 description 2
229920000578 graft copolymer Polymers 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
230000007062 hydrolysis Effects 0.000 description 2
238000006460 hydrolysis reaction Methods 0.000 description 2
239000004702 low-density polyethylene Substances 0.000 description 2
239000000314 lubricant Substances 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
239000004701 medium-density polyethylene Substances 0.000 description 2
235000019645 odor Nutrition 0.000 description 2
230000005855 radiation Effects 0.000 description 2
239000007787 solid Substances 0.000 description 2
238000010998 test method Methods 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
239000001993 wax Substances 0.000 description 2
241000227653 Lycopersicon Species 0.000 description 1
235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
239000004372 Polyvinyl alcohol Substances 0.000 description 1
238000005299 abrasion Methods 0.000 description 1
150000008065 acid anhydrides Chemical class 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
239000002998 adhesive polymer Substances 0.000 description 1
150000001412 amines Chemical class 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
239000002981 blocking agent Substances 0.000 description 1
DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
239000004927 clay Substances 0.000 description 1
239000008119 colloidal silica Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
238000002845 discoloration Methods 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
238000001125 extrusion Methods 0.000 description 1
RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 1
229920006158 high molecular weight polymer Polymers 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000007689 inspection Methods 0.000 description 1
239000000178 monomer Substances 0.000 description 1
235000021485 packed food Nutrition 0.000 description 1
230000035699 permeability Effects 0.000 description 1
229920006122 polyamide resin Polymers 0.000 description 1
229920001296 polysiloxane Polymers 0.000 description 1
229920002451 polyvinyl alcohol Polymers 0.000 description 1
235000020991 processed meat Nutrition 0.000 description 1
230000035943 smell Effects 0.000 description 1
238000003860 storage Methods 0.000 description 1
238000012360 testing method Methods 0.000 description 1
239000012815 thermoplastic material Substances 0.000 description 1
239000010409 thin film Substances 0.000 description 1
235000015113 tomato pastes and purées Nutrition 0.000 description 1
229920006163 vinyl copolymer Polymers 0.000 description 1

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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/185—Articles comprising two or more components, e.g. co-extruded layers the components being layers comprising six or more components, i.e. each component being counted once for each time it is present, e.g. in a layer
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
- 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
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0028—Stretching, elongating
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
- 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
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/72—Cured, e.g. vulcanised, cross-linked
- 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
- B32B2307/718—Weight, e.g. weight per square meter
- 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
- B32B2323/046—LDPE, i.e. low density polyethylene
- 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

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Laminated Bodies (AREA)
Wrappers (AREA)
Packages (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

DK104087A 1986-02-28 1987-02-27 Flerlags emballagefolie, især til levnedsmidler. DK169144B1 (da)

Applications Claiming Priority (6)

Application Number	Priority Date	Filing Date	Title
US06/834,694 US4746562A (en)	1986-02-28	1986-02-28	Packaging film
US83469486		1986-02-28
US84232186A	1986-03-21	1986-03-21
US84232186		1986-03-21
US84260086		1986-03-21
US06/842,600 US4755419A (en)	1986-03-21	1986-03-21	Oxygen barrier oriented shrink film

Publications (3)

Publication Number	Publication Date
DK104087D0 DK104087D0 (da)	1987-02-27
DK104087A DK104087A (da)	1987-11-03
DK169144B1 true DK169144B1 (da)	1994-08-29

Family

ID=27420248

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK104087A DK169144B1 (da)	1986-02-28	1987-02-27	Flerlags emballagefolie, især til levnedsmidler.

Country Status (4)

Country	Link
EP (2)	EP0561428B1 (de)
AT (1)	ATE165560T1 (de)
DE (2)	DE3752186T2 (de)
DK (1)	DK169144B1 (de)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4911963A (en) *	1987-08-31	1990-03-27	Viskase Corporation	Multilayer film containing amorphous nylon
US5077109A (en) *	1987-08-31	1991-12-31	Viskase Corporation	Oriented multilayer film and process for making same
DE68927746T2 (de) *	1988-05-09	1997-07-03	Int Paper Co	Sauerstoffundurchlässiger leckagefreier Behälter
US5032463A (en) *	1988-07-18	1991-07-16	Viskase Corporation	Very low density polyethylene film from blends
US5053259A (en) *	1988-08-23	1991-10-01	Viskase Corporation	Amorphous nylon copolymer and copolyamide films and blends
CA1328836C (en) *	1989-05-22	1994-04-26	Charles E. Gibbons	Oxygen impermeable leak free container
DE4029405A1 (de) *	1990-03-16	1991-09-19	Degussa	Formkoerper zur waermedaemmung
TR25085A (tr) *	1991-03-04	1992-11-01	Degussa Ag Dallare Ind Limited	ISI IZOLASYONU ICIN KALIPLANMIS ELEMAN YATAY VE DIKEY HAREKET EDEBILEN PENCERE SISTEMLERISERAMIK PARCALARIN VE BILHASSA TUGLALARIN SIRLANMASI ICIN YüKSEK KRISTALIZASYON HIZINA SAHIP CAM SER ICIN YAPI DONANIMI AMIK BILESIM
JP3104885B2 (ja) *	1992-03-13	2000-10-30	大倉工業株式会社	熱収縮性積層フィルム
EP0595220B1 (de) *	1992-10-26	1997-06-11	Mitsui Petrochemical Industries, Ltd.	Zusammendrückbarer rohrförmiger Behälter und Verfahren zu seiner Herstellung
US5482770A (en) *	1992-11-03	1996-01-09	W. R. Grace & Co.-Conn.	Highly oriented multilayer film
DE69333773T2 (de)	1992-11-13	2006-04-06	Cryovac, Inc.	Wärmeschrumpfbare, durch Single-site-Katalyse hergestellte Copolymere enthaltende Folien.
AU685406B2 (en) *	1993-01-29	1998-01-22	Bemis Company, Inc.	Heat shrinkable film structures with improved sealability and toughness
SE9300558D0 (sv) *	1993-02-19	1993-02-19	Kabi Pharmacia Ab	Autoclavable multilayer films
US5382470A (en) *	1993-04-09	1995-01-17	Viskase Corporation	EVOH oxygen barrier stretched multilayer film
BR9405336A (pt) *	1993-04-09	1999-08-31	Viskase Corp	Filme, saco e embalgem para queijo, e processo para embalar produtos alimentìcios que respiram e respectivo processo de obtenção
US5547765A (en) *	1993-09-07	1996-08-20	Alliedsignal Inc.	Retortable polymeric films
US6964798B2 (en)	1993-11-16	2005-11-15	Baxter International Inc.	Multi-layered polymer based thin film structure for medical grade products
US5766772A (en) *	1994-01-11	1998-06-16	W. R. Grace & Co.-Conn.	Anti-fog film, method of packaging products having high moisture content and products thus packaged
CN1128005A (zh) *	1994-03-15	1996-07-31	株式会社大塚制药工场	防污染密封膜及其制品
DE4410235C2 (de) *	1994-03-25	1998-10-22	Gizeh Verpackungen Gmbh & Co K	Siegelfähige, peelbare Kunststoffolie auf Polypropylen-Basis
GB9406106D0 (en) *	1994-03-28	1994-05-18	Bxl Plastics Ltd	Multi-layered composite
DE4414335A1 (de) *	1994-04-25	1995-10-26	Wolff Walsrode Ag	Sperrschichtfolie mit leitfähigen Aussenschichten sowie ihre Verwendung
EP0679487A1 (de) *	1994-04-28	1995-11-02	W.R. Grace & Co.-Conn.	Mehrschichtige Polyolefinfolie mit recycliertem Polymer aus vernetzten Filmen
EP0764084A1 (de) *	1994-06-06	1997-03-26	W.R. Grace & Co.-Conn.	Verbundfolie für herstellung von verpackungen zum formen, füllen und schiessen
CA2191587C (en) *	1994-06-13	2005-04-12	Alfieri Degrassi	Retortable, high oxygen barrier polymeric films
NZ272328A (en) *	1994-07-13	1997-05-26	Grace W R & Co	Heat-shrinkable multilayer packaging film having polyamide internal layers
US5707750A (en) *	1994-10-24	1998-01-13	Alliedsignal Inc.	Retortable, high oxygen barrier polymeric films
DE19500766C2 (de) *	1995-01-13	2000-10-05	M & W Verpackungen Gmbh	Verfahren zur Herstellung einer Folie mit hoher Durchstoßfestigkeit
DE69514092T2 (de) *	1995-04-15	2000-08-24	The Procter & Gamble Company, Cincinnati	Heisssiegelbares Mehrschichtmaterial mit Sperrschicht
EP0744285B1 (de) *	1995-05-24	1999-12-15	Cryovac, Inc.	Mehrschichtiger Verpackungsfilm mit Saurstoffbarriere
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1987
- 1987-02-27 AT AT93108323T patent/ATE165560T1/de not_active IP Right Cessation
- 1987-02-27 DE DE3752186T patent/DE3752186T2/de not_active Expired - Lifetime
- 1987-02-27 EP EP93108323A patent/EP0561428B1/de not_active Expired - Lifetime
- 1987-02-27 EP EP87301779A patent/EP0236099B2/de not_active Expired - Lifetime
- 1987-02-27 DE DE3789629T patent/DE3789629T3/de not_active Expired - Lifetime
- 1987-02-27 DK DK104087A patent/DK169144B1/da not_active IP Right Cessation

Also Published As

Publication number	Publication date
DK104087A (da)	1987-11-03
EP0561428B1 (de)	1998-04-29
DE3752186T2 (de)	1998-08-20
DE3789629D1 (de)	1994-05-26
DK104087D0 (da)	1987-02-27
EP0236099A2 (de)	1987-09-09
DE3752186D1 (de)	1998-06-04
EP0236099A3 (en)	1988-08-10
DE3789629T3 (de)	2005-06-23
EP0561428A1 (de)	1993-09-22
ATE165560T1 (de)	1998-05-15
EP0236099B2 (de)	2004-12-01
EP0236099B1 (de)	1994-04-20
DE3789629T2 (de)	1994-08-04

Legal Events

Date	Code	Title	Description
1994-08-29	B1	Patent granted (law 1993)
2007-03-19	PUP	Patent expired

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