WO1994009060B1 - Film for packaging purposes - Google Patents

Film for packaging purposes

Info

Publication number
WO1994009060B1
WO1994009060B1 PCT/US1993/009821 US9309821W WO9409060B1 WO 1994009060 B1 WO1994009060 B1 WO 1994009060B1 US 9309821 W US9309821 W US 9309821W WO 9409060 B1 WO9409060 B1 WO 9409060B1
Authority
WO
WIPO (PCT)
Prior art keywords
page
lines
film
ethylene polymer
linear ethylene
Prior art date
Application number
PCT/US1993/009821
Other languages
French (fr)
Other versions
WO1994009060A1 (en
Filing date
Publication date
Priority claimed from US08/055,063 external-priority patent/US5562958A/en
Application filed filed Critical
Priority to JP6510259A priority Critical patent/JPH08502532A/en
Priority to EP93923884A priority patent/EP0665863A1/en
Publication of WO1994009060A1 publication Critical patent/WO1994009060A1/en
Publication of WO1994009060B1 publication Critical patent/WO1994009060B1/en
Priority to FI951799A priority patent/FI951799A/en

Links

Abstract

Film and film-making methods with improved toughness, hot tack, shrinkability and extrusion processibility are disclosed for use in packaging and wrapping food, beverages and nonfood articles. The improved film comprises at least one layer of at least one substantially linear ethylene polymer, wherein the substantially linear ethylene polymer has a uniform branching distribution, and is also characterized as having essentially no linear polymer fraction, a single DSC melting peak and a density greater than 0.85 g/cm3. The films have utility in shrink, skin, stretch wrap, form-fill-seal and vacuum wrap operations.

Claims

AMENDED CLAIMS
[received by the International Bureau on 16 May 1994 (16.05.94); original claims 1-24 unchanged; new claims 25-62 added (5 pages)]
21. The method of Claim 20 wherein the orientation is accomplished using a double bubble technique, a tenter frame, by blowing-up the primary film tube to a blow-up ratio of at least 2.5:1 or any combination.
22. The method of Claim 20 wherein the primary tube film is irradiated before the orientation step (D) .
23. The method of Claim 20 wherein the primary tube film is irradiated after the orientation step (D) .
24. A method of manufacturing hot tack film comprising the steps of:
(A) extruding at least one substantially linear ethylene polymer into an extrudate, wherein the substantially linear ethylene polymer is characterized as having:
(i) a melt flow ratio, I10/I , ≥ 5.63,
(ii) a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn < (I10/I2) - 4.63, and
(iii) a critical shear rate at onset of surface melt fracture of at least 50 percent greater than the critical shear rate at the onset of surface melt fracture of a linear ethylene polymer having about the same I2 and Mw/Mn, and
(B) passing the extrudate of (A) through an annular die to form an outer layer of the film.
25. A method for packaging food comprising wrapping the food in a film structure having at least one film layer comprising a substantially linear ethylene polymer which is characterized as having:
(A) a melt flow ratio, I10/l2, ≥ 5.63,
(B) a molecular weight distribution, Mw/Mn, defined by the equation: w/Mn < (I10/I2) - 4.63, and
(C) a critical shear rate at onset of surface melt fracture of at least 50 percent greater than the critical shear rate at the onset of surface melt fracture of a linear ethylene polymer having about the same I2 and Mw/Mn.
5 26. A method of improving the oxygen permeability of a food packaging film structure comprising an ethylene polymer, the method comprising incorporating into the film structure a substantially linear ethylene polymer which is characterized as having:
(A) a melt flow ratio, I10/I , > 5.63,
(B) a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn < (I10/I2) - 4.63, and
(C) a critical shear rate at onset of surface melt fracture of at least 50 percent greater than the critical shear rate at the onset of surface melt fracture of a linear ethylene polymer having about the same ∑2 and Mw/Mn.
27. The film of Claim 1 and the methods of Claims 19, 20, 24, 25 and 26 wherein said substantially linear ethylene polymer is further characterized as having from about 0.01 long chain branches/1000 carbons to about 3 long chain branches/1000 carbons along the polymer backbone.
28. The film of Claim 1 and the methods of Claims 19, 20, 24, 25 and 26 wherein said substantially linear ethylene polymer is an interpolymer of ethylene and at least one α-olefin selected from the group consisting of 1-propylene, 1-butene, 4-methyl-l-pentene, 1-hexene and 1- octene.
29. The film and methods of Claim 29 wherein said substantially linear ethylene polymer is a copolymer of ethylene and 1-octene.
30. The film and methods of Claim 28 wherein the substantially linear ethylene polymer is blended with at least one other polymer.
31. The film and methods of Claim 30 wherein the other polymer is another substantially linear ethylene polymer.
32. The film and methods of Claim 30 wherein the other polymer is a homogeneously or heterogeneously branched linear ethylene polymer.
56 33. The film and methods of Claim 30 wherein the other polymer is an ethylene/α,β-unsaturated carbonyl copolymer.
34. The film of Claims 1, 19, 20, 24, 25 and 26 wherein said film is a monolayer film.
35. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the film, or the composition from which the film is fabricated, is irradiated.
36. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the film comprises at least one core layer and two outer layers.
37. The film of Claim 36 wherein at least one skin layer of the film comprises at least one substantially linear ethylene polymer.
38. The film of Claim 36 wherein at least one core layer comprises at least one substantially linear ethylene polymer.
39. The film of Claims 1, 19, 20, 24 and 25 wherein at least one film layer is an oxygen barrier.
40. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the film comprises a core layer comprising the substantially linear ethylene polymer and the two outer layers comprise homogeneously or heterogeneously branched linear low density polyethylene.
41. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the film contains an effective amount of an anti-fogging agent.
42. The method of Claim 25 wherein the food is wrapped by a stretch overwrap technique.
43. The method of Claim 25 wherein the food is wrapped by a skin packaging technique.
44. The method of Claim 25 wherein the food is wrapped by a shrink packaging technique.
45. The method of Claim 25 wherein the food is wrapped by a form-fill-seal technique.
57 46. The method of Claim 25 wherein the food is wrapped by a vacuum form packaging technique.
47. The method of Claim 25 wherein the food is fresh.
48. The method of Claim 47 wherein the food is selected from the group consisting of red meat, fish, poultry, vegetables and fruit.
49. The method of Claim 48 wherein the food is retail-cut red meat.
50. The method of Claim 48 wherein the food is primal-cut red meat.
51. The method of Claim 47 wherein the food is frozen after packaging.
52. Food packaged by the method of Claim 25.
53. The method of Claim 25 wherein the film structure is at least about 0.4 mil in thickness.
54. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the substantially linear ethylene polymer contains an effective amount of at least one antioxidant.
55. The film of Claim 54 wherein the antioxidant is a hindered phenolic antioxidant.
56. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the substantially linear ethylene polymer contains an effective amount of at least one antiblock additive.
57. The film of Claim 56 wherein the antiblock additive is silicon dioxide.
58. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the substantially linear ethylene polymer contains an effective amount of at least one additive that enhances coefficient of friction.
58 59. The film of Claim 58 wherein the additive is a fatty acid amide.
60. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the film is further characterized as having minimal surface defects or no surface defects.
61. The film of Claims 1, 19, 20, 24, '25 and 26 wherein the film under 40x magnification has a smoother surface than a comparative linear ethylene polymer having about the same I and Mw/Mn.
62. The film of Claims 1, 19, 20, 24, 25 and 26 wherein the film is further characterized as having less melt fracture than a comparative linear ethylene polymer having about the same I2 and Mw/Mn.
STATEMENT UNDER ARTICLE 19
Amendments to claims add new Claims 25 to 62 and leave originally filed Claims 1 to 24 unchanged. Amendments do not add new matter.
Support for new claims is found in the description as follows:
Claim 25 page 1, lines 18 to 24 respecting shrink packaging; on page 2, lines 8 to 19 respecting hot tack, form-fill-seal packaging; on page 2, lines 20 to 30 respecting stretch wrapping; on page 3, lines 8 to 15 respecting vacuum packaging; and page 3, lines 16 to 34 as well as page 1, lines 30 to 36 respecting skin packaging.
Claim 26 page 2, lines 30 to 33 and on page 26, lines 7 to 22. Claim 27 page 11, lines 33 to 36 bridging to page 12, lines 1 to 3. Claims 28 page 12, lines 25 to 33. Claims 29 page 12, lines 25 to 33. Claim 30 page 14, lines 11 to 34. Claim 31 page 14, lines 11 to 34. Claim 32 page 14, lines 11 to 34. Claim 33 page 14, lines 11 to 34. Claim 34 page 14, lines 8 to 11. Claim 35 page 27, lines 28 to 35 bridging to page 28, lines 1 to 23. Claim 36 page 26, lines 11 to 17. Claim 37 page 14, lines 32 to 35. Claim 38 page 24, lines 14 to 17. Claim 39 page 2, lines 3 to 8; page 24, lines 28 to 36 bridging to page 25, lines 1 to 5; and page 26, lines 23 to 36. Claim 40 page 26, lines 11 to 17. Claim 41 page 14, lines 2 to 4. Claim 42 page 9, lines 24 to 30. Claim 43 page 9, lines 24 to 30. Claim 44 page 9, lines 24 to 30. Claim 45 page 28, lines 24 to 36 bridging to page 29, lines 1 to 4. Claim 46 page 9, lines 24 to 30. Claim 47 page 26, lines 1 to 17 and page 23, lines 30 to 36. Claim 48 page 26, lines 11 to 17 and page 23, lines 30 to 36. Claim 49 page 24, lines 1 to 8. Claim 50 page 26, lines 28 to 36. Claim 52 page 9, line 24 to 30. Claim 53 page 27, lines 9 to 14. Claim 54 page 13, lines 27 to 34. Claim 55 page 13, lines 27 to 34. Claim 56 page 13, lines 34 to 36 bridging to page 14, lines 1 to 2. Claim 57 page 13, lines 34 to 36 bridging to page 14, lines 1 to 2. Claim 58 page 13, lines 34 to 36 bridging to page 14, lines 1 to 2. Claim 59 page 13, lines 34 to 36 bridging to page 14, lines 1 to 2. Claim 60 page 16, lines 27 to 36 bridging to page 17, lines 1 to 17. Claim 61 page 16, lines 27 to 36 bridging to page 17, lines 1 to 17. Claim 62 page 16, lines 27 to 36 bridging to page 17, lines 1 to 17.
61
PCT/US1993/009821 1992-10-14 1993-10-14 Film for packaging purposes WO1994009060A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6510259A JPH08502532A (en) 1992-10-14 1993-10-14 Wrapping film
EP93923884A EP0665863A1 (en) 1992-10-14 1993-10-14 Film for packaging purposes
FI951799A FI951799A (en) 1992-10-14 1995-04-13 Film for packaging purposes

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US96126992A 1992-10-14 1992-10-14
US07/961,269 1992-10-14
US2456393A 1993-03-01 1993-03-01
US08/024,563 1993-03-01
US08/055,063 US5562958A (en) 1991-10-15 1993-04-28 Packaging and wrapping film
US08/055,063 1993-04-28

Publications (2)

Publication Number Publication Date
WO1994009060A1 WO1994009060A1 (en) 1994-04-28
WO1994009060B1 true WO1994009060B1 (en) 1994-06-23

Family

ID=27362343

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/009821 WO1994009060A1 (en) 1992-10-14 1993-10-14 Film for packaging purposes

Country Status (7)

Country Link
US (4) US5562958A (en)
EP (1) EP0665863A1 (en)
JP (1) JPH08502532A (en)
CA (1) CA2145644A1 (en)
FI (1) FI951799A (en)
MX (1) MX9306405A (en)
WO (1) WO1994009060A1 (en)

Families Citing this family (154)

* 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
ATE291059T1 (en) 1992-11-13 2005-04-15 Cryovac Inc HEAT SHRINKABLE FILMS CONTAINING COPOLYMERS PRODUCED BY SINGLE SITE CATALYSIS.
US5604043A (en) 1993-09-20 1997-02-18 W.R. Grace & Co.-Conn. Heat shrinkable films containing single site catalyzed copolymers having long chain branching
CA2085813C (en) * 1992-12-18 2001-06-12 Bankim B. Desai Formulation of high abuse, high shrink barrier bags for meat packaging
US6270867B1 (en) 1993-06-24 2001-08-07 Pechiney Plastic Packaging, Inc. Structures of polymers made from single site catalysts
US7316833B1 (en) 1993-06-24 2008-01-08 Penchiney Emballage Flexible Europe Multi-layer thermoplastic films and packages made therefrom
US6645641B2 (en) * 1993-06-24 2003-11-11 Pechiney Plastic Packaging, Inc. Structures of polymers made from single site catalysts
WO1995000333A1 (en) 1993-06-24 1995-01-05 American National Can Company Improved structures of polymers made from single site catalysts
US5525659A (en) * 1993-09-08 1996-06-11 The Dow Chemical Company Batch inclusion packages
DE69411946T2 (en) * 1993-12-08 1998-11-26 Dow Chemical Co STRETCHABLE, SELF-ADHESIVE FILM AND METHOD FOR THE PRODUCTION THEREOF
US6499597B2 (en) * 1994-02-01 2002-12-31 Aquasol Limited Skin package
GB9402430D0 (en) † 1994-02-08 1994-03-30 Du Pont Canada Multilayer ethylene copolymer film
GB9415930D0 (en) * 1994-08-04 1994-09-28 Forbo Nairn Ltd Floor coverings
US5614297A (en) * 1994-05-19 1997-03-25 Viskase Corporation Polyolefin stretch film
US5658625A (en) * 1994-05-25 1997-08-19 W.R. Grace & Co.-Conn. Film containing alpha-olefin/vinyl aromatic copolymer
AU748753B2 (en) * 1994-05-25 2002-06-13 Cryovac, Inc. Film containing alpha-olefin/vinyl aromatic copolymer
AU3541795A (en) * 1994-09-07 1996-03-27 Dow Chemical Company, The Plastic linear low density polyethylene
US5837335A (en) * 1994-10-04 1998-11-17 Cryovac, Inc. High shrink multilayer film which maintains optics upon shrinking
US5834077A (en) * 1994-10-04 1998-11-10 W. R. Grace & Co.-Conn. High shrink multilayer film which maintains optics upon shrinking
US5736260A (en) * 1994-10-06 1998-04-07 Sumitomo Chemical Company, Limited Multilayer packaging film
US6287613B1 (en) 1994-12-12 2001-09-11 Cryovac Inc Patch bag comprising homogeneous ethylene/alpha-olefin copolymer
JPH08169094A (en) * 1994-12-19 1996-07-02 Sumitomo Chem Co Ltd Heat-shrinkable packaging film
NZ280804A (en) 1995-01-11 1998-02-26 Grace W R & Co Food package; comprises a tray and a lidstock, the lidstock including a shrink film that is oriented; packaging method
US5679422A (en) * 1995-01-25 1997-10-21 American National Can Company Coextruded film for chub packages
US5744181A (en) * 1995-03-01 1998-04-28 W. R. Grace & Co.-Conn. Packaging method using thermoplastic materials and package obtained thereby
US6884480B2 (en) 1995-05-19 2005-04-26 Cryovac, Inc. Film containing alpha-olefin/vinyl aromatic copolymer
DE69606811T3 (en) 1995-07-31 2012-01-12 Kureha Corp. Multilayer film
JPH09142525A (en) * 1995-11-21 1997-06-03 Toppan Printing Co Ltd Packaging laminate film and packaged body
JP2002515923A (en) * 1995-12-18 2002-05-28 エクソン ケミカル パテンツ インコーポレイテッド Biaxially oriented polyethylene film
US5827559A (en) * 1996-02-02 1998-10-27 E. I. Du Pont De Nemours And Company Cook-in packaging and methods relating thereto
WO1997028960A2 (en) * 1996-02-09 1997-08-14 Tredegar Industries, Inc. Heat sealable, peelable film and method of making same
WO1997030111A1 (en) * 1996-02-20 1997-08-21 The Dow Chemical Company Shrink films and method for making films having maximum heat shrink
EP1787806B1 (en) * 1996-05-28 2013-07-03 Kureha Corporation Heat-shrinkable multi-layer film
US6086967A (en) * 1996-11-06 2000-07-11 The Dow Chemical Company Modified atmosphere films useful in the packaging of perishable food
DE69713131T2 (en) 1996-11-13 2002-10-31 Dow Chemical Co SHRINK FILM WITH BALANCED PROPERTIES OR IMPROVED TOUGHNESS AND METHOD FOR THE PRODUCTION THEREOF
JP4008973B2 (en) * 1996-11-27 2007-11-14 出光興産株式会社 Packaging bag film
JP4233126B2 (en) * 1996-11-27 2009-03-04 出光興産株式会社 Multilayer film for packaging bags
US6423848B2 (en) 1996-12-17 2002-07-23 E. I. Du Pont De Nemours And Company Tridentate ligand
US6432862B1 (en) 1996-12-17 2002-08-13 E. I. Du Pont De Nemours And Company Cobalt catalysts for the polymerization of olefins
US6417305B2 (en) 1996-12-17 2002-07-09 E. I. Du Pont De Nemours And Company Oligomerization of ethylene
US6214761B1 (en) 1996-12-17 2001-04-10 E. I. Du Pont De Nemours And Company Iron catalyst for the polymerization of olefins
US6780373B1 (en) * 1996-12-20 2004-08-24 Cryovac, Inc. Method of making an easy open tear film
US5989725A (en) * 1997-01-16 1999-11-23 Tenneco Packaging Clear high molecular weight film
US5928740A (en) * 1997-02-28 1999-07-27 Viskase Corporation Thermoplastic C2 -α-olefin copolymer blends and films
US6372324B1 (en) * 1997-02-28 2002-04-16 Idemitsu Petrochemical Co., Ltd. Soft transparent polyethylene resin sheet and process for producing the same
US6296886B1 (en) 1997-03-17 2001-10-02 Cryovac, Inc. Method of film crease elimination and patch bag without crease within lay-flat bag side
US6194042B1 (en) * 1997-07-10 2001-02-27 Tri-Seal Holdings, Inc. High barrier closure liner with oxygen absorbing capabilities
US6139931A (en) * 1997-07-10 2000-10-31 Tri-Seal Holdings, Inc. High barrier closure liner for carbonated beverage containers and the like
ZA986434B (en) 1997-07-21 2000-01-20 Dow Chemical Co Broad mwd, compositionally uniform ethylene interpolymer compositions, process for making the same and article made therefrom.
US6017615A (en) * 1997-08-25 2000-01-25 Huntsman Polymers Corporation Film product comprising novel polyolefins
US6114483A (en) * 1997-08-27 2000-09-05 E. I. Du Pont De Nemours And Company Polymerization of olefins
ATE258958T1 (en) 1997-09-19 2004-02-15 Dow Chemical Co ETHYLENE COPOLYMER MIXTURES WITH NARROW MOLECULAR WEIGHT DISTRIBUTION AND OPTIMIZED COMPOSITION, METHOD FOR THEIR PRODUCTION AND THEIR USE
US6790468B1 (en) 1997-09-30 2004-09-14 Cryovac, Inc. Patch bag and process of making same
US6313241B1 (en) * 1997-10-01 2001-11-06 Cryovac, Inc. Narrow molecular weight distribution copolymers containing long chain branches and process to form same
US6083611A (en) * 1997-11-12 2000-07-04 Tenneco Packaging, Inc. Roll wrap film
US6042930A (en) * 1997-12-24 2000-03-28 The Dow Chemical Company Plastic heat-activated adhesive labels
US6610392B1 (en) * 1998-03-04 2003-08-26 Cryovac, Inc. Heat-shrinkable multilayer packaging film comprising inner layer comprising a polyester
DK1060077T3 (en) 1998-03-04 2003-10-06 Cryovac Inc Stackable, heat-shrinkable multilayer packaging film
US6297338B1 (en) 1998-03-30 2001-10-02 E. I. Du Pont De Nemours And Company Polymerization of olefins
CA2324310A1 (en) * 1998-03-30 1999-10-07 E.I. Du Pont De Nemours And Company Polymerization of olefins
AU3472399A (en) * 1998-04-03 1999-10-25 Dow Chemical Company, The Polymeric adhesive composition for polyvinylidene chloride interpolymers
US6376619B1 (en) 1998-04-13 2002-04-23 3M Innovative Properties Company High density, miniaturized arrays and methods of manufacturing same
FR2777502B1 (en) * 1998-04-15 2000-06-09 Ceisa HIGH-CLARITY HEAT SHRINKABLE POLYETHYLENE FILM FOR PACKAGING PRODUCT GROUPS
AR018359A1 (en) * 1998-05-18 2001-11-14 Dow Global Technologies Inc HEAT RESISTANT ARTICLE, CONFIGURED, IRRADIATED AND RETICULATED, FREE FROM A SILANAN RETICULATION AGENT
TW460485B (en) 1998-06-19 2001-10-21 Japan Polyolefins Co Ltd Ethylene.Α-olefin copolymer, and combinations, films and use thereof
US6749910B1 (en) * 1998-07-07 2004-06-15 Curwood, Inc. Bag for bone-in meat packing
GB9818869D0 (en) * 1998-08-29 1998-10-21 Rexam Med Packaging Ltd Polymeric films and packages produced therefrom
WO2000040404A1 (en) * 1998-12-30 2000-07-13 Mobil Oil Corporation Coated films with improved barrier properties
EP1144178A1 (en) * 1999-01-18 2001-10-17 Cryovac, Inc. Heat-shrinkable, irradiated, polyethylene mono-layer film
AU774119B2 (en) * 1999-04-30 2004-06-17 E.I. Du Pont De Nemours And Company Packaging to enhance shelf life of foods
SG97919A1 (en) * 1999-08-31 2003-08-20 Sumitomo Chemical Co Ethylene-alpha-olefin copolymer and polyethylene composition
US6265055B1 (en) * 1999-10-13 2001-07-24 David Simpson Multilayer stretch cling film
US7255903B1 (en) * 1999-10-25 2007-08-14 Cryovac, Inc. Patch bag with patch containing high and low crystallinity ethylene copolymers
US6482638B1 (en) * 1999-12-09 2002-11-19 3M Innovative Properties Company Heat-relaxable substrates and arrays
US6846551B2 (en) 1999-12-22 2005-01-25 Pechiney Emballage Flexible Europe Multilayer film structures having improved seal and tear properties
US6482532B1 (en) 2000-06-07 2002-11-19 Dow Global Technologies Inc. Easy tear non-halogenic food wrap
US6777047B1 (en) * 2000-07-06 2004-08-17 Curwood, Inc. Ionomeric, puncture resistant, thermoplastic bag
US6663809B1 (en) 2000-07-10 2003-12-16 Bedford Industries, Inc. Wireless polymeric twist tie
US6340532B1 (en) 2001-01-31 2002-01-22 Nova Chemicals (International) S.A. Shrink films
MY131000A (en) * 2001-03-16 2007-07-31 Dow Global Technologies Inc High melt strength polymers and method of making same
AU2002326492B2 (en) * 2001-07-31 2008-07-17 Avery Dennison Corporation Conformable holographic labels
KR20040022235A (en) * 2001-08-06 2004-03-11 다우 글로벌 테크놀로지스 인크. Breathable Films
US6824734B2 (en) * 2001-10-09 2004-11-30 Kimberly-Clark Worldwide, Inc. Method of producing latent elastic, cross-direction-oriented films
US20030079333A1 (en) * 2001-10-29 2003-05-01 Guthrie Joseph D. Process for making a metal-polymer composite having an irradiated polymer coating
US20050012235A1 (en) * 2001-11-30 2005-01-20 Schregenberger Sandra D Oxygen tailoring of polyethylene resins
US6846530B2 (en) * 2002-03-05 2005-01-25 Honeywell International Inc. Lamination for specialty meat packaging
SE523861C2 (en) * 2002-05-07 2004-05-25 Tetra Laval Holdings & Finance Packaging laminate, method of manufacture thereof, and packaging container made of packaging laminate
SE522498C2 (en) * 2002-05-07 2004-02-10 Tetra Laval Holdings & Finance Packaging laminate, method of manufacture thereof, and packaging container made of packaging laminate
CA2487931A1 (en) * 2002-06-04 2003-12-11 Jimmy Z. Zhou Polymer compositions and method of making pipes
CA2490073A1 (en) * 2002-06-17 2003-12-24 Pliant Corporation Peel seal tamper evident slider bag
US7217463B2 (en) 2002-06-26 2007-05-15 Avery Dennison Corporation Machine direction oriented polymeric films and methods of making the same
US6864195B2 (en) * 2002-08-15 2005-03-08 Bfs Diversified Products, Llc Heat weldable roofing membrane
ES2306884T3 (en) * 2002-09-05 2008-11-16 Exxonmobil Chemical Patents Inc. CONTRAIBLE FILM.
EP1539489B1 (en) * 2002-09-16 2014-06-04 Dow Global Technologies LLC High clarity, high stiffness films
US7741408B2 (en) * 2003-03-28 2010-06-22 Dow Global Technologies, Inc. Low gloss thermoformable flooring structure
FI20030610A0 (en) * 2003-04-22 2003-04-22 Raisio Benecol Oy Edible product
DE602004002948T2 (en) * 2003-04-24 2007-02-22 Dow Global Technologies, Inc., Midland COPOLYMERS OF ETHYLENE AND 1-HEPTEN
EP1589044A3 (en) * 2003-08-11 2006-02-15 ExxonMobil Chemical Patents Inc. Polymers of ethylene and, optionally, copolymerizable esters, films using such polymers and stretch hood packaging processes using such films
US7422786B2 (en) * 2003-09-24 2008-09-09 Exxonmobil Chemical Patents Inc. Collation shrink
US7147930B2 (en) * 2003-12-16 2006-12-12 Curwood, Inc. Heat-shrinkable packaging films with improved sealing properties and articles made thereof
US20080102233A1 (en) * 2004-05-20 2008-05-01 Dekunder Staci A Porous Films
US7775716B2 (en) 2004-05-26 2010-08-17 Kee Plastics Ab Piping bag, blank for manufacturing a piping bag and method of manufacturing a piping bag
US20060040075A1 (en) * 2004-08-17 2006-02-23 Jacques Roulin Polymer composition having elastomeric features
US8202940B2 (en) * 2004-08-19 2012-06-19 Univation Technologies, Llc Bimodal polyethylene compositions for blow molding applications
US7892466B2 (en) * 2004-08-19 2011-02-22 Univation Technologies, Llc Oxygen tailoring of polyethylene resins
US7456231B2 (en) * 2005-02-02 2008-11-25 Shawcor Ltd. Radiation-crosslinked polyolefin compositions
DE102005020852A1 (en) * 2005-05-02 2006-11-09 Robert Bürkle GmbH Process for coating workpieces
US20060255501A1 (en) * 2005-05-11 2006-11-16 Shawcor Ltd. Crosslinked chlorinated polyolefin compositions
ITMI20051823A1 (en) * 2005-09-29 2007-03-30 Safta Spa FLEXIBLE PACKAGING SYSTEMS AND PROCEDURES FOR THEIR MANUFACTURE
US8129006B2 (en) * 2005-09-30 2012-03-06 Flexopack S.A. Stack sealable heat shrinkable film
EP1996041A1 (en) * 2006-03-22 2008-12-03 E.I. Du Pont De Nemours And Company Article wrapped in a protective film
US7951873B2 (en) 2006-05-05 2011-05-31 Exxonmobil Chemical Patents Inc. Linear low density polymer blends and articles made therefrom
US20080003332A1 (en) * 2006-05-12 2008-01-03 Dimitrios Ginossatis Multilayer heat shrinkable cook-in film
CN103121320B (en) 2006-06-14 2015-06-24 艾利丹尼森公司 Conformable and die-cuttable machine direction oriented labelstocks and labels, and process for preparing
CN101484315B (en) 2006-06-20 2013-04-10 艾利丹尼森公司 Multilayered polymeric film for hot melt adhesive labeling and label stock and label thereof
US8105686B2 (en) 2006-07-17 2012-01-31 Avery Dennison Corporation Asymmetric multilayered polymeric film and label stock and label thereof
US8522978B2 (en) * 2006-12-01 2013-09-03 Cryovac, Inc. Stress concentrator for opening a flexible container
WO2008073095A1 (en) * 2006-12-13 2008-06-19 Robinson, Michelle, Hsiao C. Methods and apparatus for screen printing on useful articles
EP1985443B1 (en) * 2007-04-26 2011-11-02 Flexopack S.A. Plastics Industry Stack sealable heat shrinkable film
EP1985440A3 (en) * 2007-04-26 2011-05-04 Flexopack S.A. Plastics Industry Thermoforming films
US10189621B2 (en) * 2007-05-21 2019-01-29 Cryovac, Inc. Bag made from high-strength heat-shrinkable film exhibiting directional tear, and process utilizing same
US10202229B2 (en) 2007-05-21 2019-02-12 Cryovac, Inc. Easy opening packaging article made from heat-shrinkable film exhibiting directional tear
US7980272B2 (en) * 2007-06-21 2011-07-19 Samsung Electronics Co., Ltd. Microfluidic valve, method of manufacturing the same, and microfluidic device comprising the microfluidic valve
EP2077297B1 (en) 2008-01-02 2012-04-04 Flexopack S A PVDC formulation and heat shrinkable film
AU2008264215A1 (en) * 2008-01-03 2009-07-23 Flexopack S.A. Thermoforming film
EP2085216B1 (en) * 2008-01-29 2016-04-20 Flexopack S A Thin film for waste packing cassettes
EP2111979B1 (en) * 2008-04-21 2012-01-18 Flexopack S.A. Plastics Industry Stack sealable heat shrinkable film
US8642144B2 (en) 2008-05-28 2014-02-04 Bemis Company, Inc. Innerliner with nylon skin layer
CN102083624A (en) * 2008-05-28 2011-06-01 比密斯公司 Innerliner with EVA copolymer
US7735926B1 (en) * 2008-12-09 2010-06-15 Combs John A Chair lift
US20100227966A1 (en) * 2009-03-06 2010-09-09 Shawcor Ltd. Moisture-crosslinked polyolefin compositions
US9546446B2 (en) 2009-10-23 2017-01-17 Toyo Boseki Kabushiki Kaisha Highly functional polyethylene fibers, woven or knit fabric, and cut-resistant glove
GB2475961B (en) * 2009-12-02 2015-07-08 Flexopack Sa Thin film for waste packing cassettes
MX2012006658A (en) 2009-12-11 2012-09-12 Dow Global Technologies Llc Photodegradable films with good tensile and dart properties.
DE202011110798U1 (en) 2011-05-03 2016-08-09 Flexopack S.A. Waste packaging system and foil
DE202011110797U1 (en) 2011-06-16 2016-08-10 Flexopack S.A. Waste packaging system and foil
US9604430B2 (en) 2012-02-08 2017-03-28 Flexopack S.A. Thin film for waste packing cassettes
US9676532B2 (en) 2012-08-15 2017-06-13 Avery Dennison Corporation Packaging reclosure label for high alcohol content products
EP2945994B1 (en) 2013-01-18 2018-07-11 Basf Se Acrylic dispersion-based coating compositions
JP2017520642A (en) 2014-06-02 2017-07-27 アベリー・デニソン・コーポレイションＡｖｅｒｙ Ｄｅｎｎｉｓｏｎ Ｃｏｒｐｏｒａｔｉｏｎ Film with improved scuff resistance, transparency, and adaptability
US10821703B1 (en) * 2014-06-27 2020-11-03 Vikase Companies, Inc. Additive transferring film
DE102014009466A1 (en) * 2014-06-30 2015-12-31 Sig Technology Ag Sheet-like composite with a mPolyolefinschicht with reduced antioxidant content, especially for food packaging
CA2864573C (en) 2014-09-22 2021-07-06 Nova Chemicals Corporation Shrink film from single site catalyzed polyethylene
AU2015258191B2 (en) 2014-11-19 2020-02-27 Flexopack S.A. Oven skin packaging process
US10815346B2 (en) * 2015-03-27 2020-10-27 Monosol, Llc Water soluble film, packets employing the film, and methods of making and using same
JP6034527B1 (en) 2016-05-09 2016-11-30 株式会社アイセロ Film for medical packaging
EP3594275A4 (en) * 2017-03-10 2021-01-20 Sumitomo Chemical Company Limited Film
EP3501822A1 (en) 2017-12-22 2019-06-26 Flexopack S.A. Fibc liner film
WO2019132954A1 (en) * 2017-12-29 2019-07-04 Bemis Company, Inc. Recyclable films for product packaging
US11725086B2 (en) * 2018-03-05 2023-08-15 Berry Global, Inc. Shrink films and methods for making the same
AR115967A1 (en) * 2018-08-20 2021-03-17 Dow Global Technologies Llc MULTILAYER THERMOPLASTIC FILM WITH IMPROVED PUNCH RESISTANCE PERFORMANCE
ES2930233T3 (en) 2018-08-21 2022-12-09 Dow Global Technologies Llc Coated open cell polyurethane foam structures with thermal absorption capabilities
US20230027410A1 (en) * 2019-12-20 2023-01-26 Dow Global Technologies Llc Barrier laminate films for lap seals
CN112677603B (en) * 2020-12-09 2022-04-01 宁波鸿雁包装材料有限公司 Stretching winding film and preparation method thereof

Family Cites Families (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB632416I5 (en) * 1956-03-01 1976-03-09
US3555604A (en) * 1965-03-12 1971-01-19 Union Carbide Corp Biaxial orientation
US3456044A (en) * 1965-03-12 1969-07-15 Heinz Erich Pahlke Biaxial orientation
US3371464A (en) * 1965-10-15 1968-03-05 Joseph S. Swick Skin packaging apparatus
CA849081A (en) * 1967-03-02 1970-08-11 Du Pont Of Canada Limited PRODUCTION OF ETHYLENE/.alpha.-OLEFIN COPOLYMERS OF IMPROVED PHYSICAL PROPERTIES
US3914342A (en) * 1971-07-13 1975-10-21 Dow Chemical Co Ethylene polymer blend and polymerization process for preparation thereof
US4243619A (en) * 1978-03-31 1981-01-06 Union Carbide Corporation Process for making film from low density ethylene hydrocarbon copolymer
US4352849A (en) * 1981-03-26 1982-10-05 W. R. Grace & Co. Coextruded, heat-shrinkable, multi-layer, polyolefin packaging film
US4597920A (en) * 1981-04-23 1986-07-01 E. I. Du Pont De Nemours And Company Shrink films of ethylene/α-olefin copolymers
IT1192473B (en) * 1982-07-09 1988-04-13 Piero Francesconi SELF-SEALING COLD EXTENDABLE TRANSPARENT FILM, FOR PACKAGING FOOD AND OTHER
DE3240383A1 (en) * 1982-11-02 1984-05-03 Hoechst Ag, 6230 Frankfurt METHOD FOR PRODUCING OLIGOMER ALUMINOXANES
US4486552A (en) * 1983-02-28 1984-12-04 The Dow Chemical Company Fog-resistant olefin polymer films
JPS6088016A (en) * 1983-10-21 1985-05-17 Mitsui Petrochem Ind Ltd Ethylene copolymer
US4865780A (en) * 1984-12-03 1989-09-12 Viskase Corporation Process for producing irradiated multilayer film for primal meat packaging
US4737391A (en) * 1984-12-03 1988-04-12 Viskase Corporation Irradiated multilayer film for primal meat packaging
US4640856A (en) * 1985-04-29 1987-02-03 W. R. Grace & Co., Cryovac Div. Multi-layer packaging film and receptacles made therefrom
US4755403A (en) * 1985-06-03 1988-07-05 W. R. Grace & Co., Cryovac Div. Protective patch for shrinkable bag
US5256351A (en) * 1985-06-17 1993-10-26 Viskase Corporation Process for making biaxially stretched, heat shrinkable VLDPE films
CA1340037C (en) * 1985-06-17 1998-09-08 Stanley Lustig Puncture resistant, heat-shrinkable films containing very low density polyethylene copolymer
US4976898A (en) * 1985-06-17 1990-12-11 Viskase Corporation Process for making puncture resistant, heat-shrinkable films containing very low density polyethylene
US5059481A (en) * 1985-06-17 1991-10-22 Viskase Corporation Biaxially stretched, heat shrinkable VLDPE film
US4724185A (en) * 1985-09-17 1988-02-09 W. R. Grace & Co., Cryovac Div. Oxygen barrier oriented film
NZ217626A (en) * 1985-09-30 1989-11-28 W R Grace & Co Conn Formerly W Packaging film consisting of #a# olefin copolymers
US4798081A (en) * 1985-11-27 1989-01-17 The Dow Chemical Company High temperature continuous viscometry coupled with analytic temperature rising elution fractionation for evaluating crystalline and semi-crystalline polymers
US4865902A (en) * 1986-01-17 1989-09-12 E. I. Du Pont De Nemours And Company Multilayered polyolefin high shrinkage, low-shrink force shrink film
US4755419A (en) * 1986-03-21 1988-07-05 W. R. Grace & Co., Cryovac Div. Oxygen barrier oriented shrink film
EP0243510B1 (en) * 1986-04-15 1991-10-02 W.R. Grace & Co.-Conn. Multilayer packaging film
US4876146A (en) * 1986-05-01 1989-10-24 Toyo Boseki Kabushiki Kaisha Anti-fogging multilayered film and bag produced therefrom for packaging vegetables and fruits
US5055438A (en) * 1989-09-13 1991-10-08 Exxon Chemical Patents, Inc. Olefin polymerization catalysts
CA1324749C (en) * 1987-04-10 1993-11-30 Vincent Wayne Herran Flexible stretch/shrink film
US4963419A (en) * 1987-05-13 1990-10-16 Viskase Corporation Multilayer film having improved heat sealing characteristics
US4988465A (en) * 1987-05-28 1991-01-29 Viskase Corporation Manufacture of multilayer film containing very low density polyethylene
US4863784C1 (en) * 1987-05-28 2001-05-01 Bt Commercial Corp Multilayer film containing very low density polyethylene
CA1303790C (en) * 1987-07-02 1992-06-16 Alfred P. Engelmann Skin packaging film
US5015749A (en) * 1987-08-31 1991-05-14 The Dow Chemical Company Preparation of polyhydrocarbyl-aluminoxanes
US4820557A (en) * 1987-09-17 1989-04-11 W. R. Grace & Co.-Conn. Thermoplastic packaging film of low I10 /I2
US5106545A (en) * 1987-12-21 1992-04-21 W. R. Grace & Co.-Conn. Oriented polymeric films and process for enhanced orientation of polymeric films
US4886690A (en) * 1987-12-21 1989-12-12 W. R. Grace & Co. Peelable barrier film for vacuum skin packages and the like
US4957790A (en) * 1987-12-21 1990-09-18 W. R. Grace & Co.-Conn. Oriented polymeric films
US4977022A (en) * 1988-03-15 1990-12-11 W. R. Grace & Co.-Conn. Barrier stretch film
NZ228332A (en) * 1988-03-18 1991-06-25 Exxon Chemical Patents Inc Food wrap film comprising ethylene vinyl acetate, polyethylene and an elastomer
GB2218669B (en) * 1988-05-20 1992-07-08 Grace W R & Co Multi-layer packaging film and process
FI893348A (en) * 1988-07-11 1990-01-12 Sumitomo Chemical Co ETYLEN-A-OLEFINKOPOLYMER OCH FILMER FRAMSTAELLDA AV DENNA.
US5032463A (en) * 1988-07-18 1991-07-16 Viskase Corporation Very low density polyethylene film from blends
US4952451A (en) * 1988-11-17 1990-08-28 W. R. Grace & Co.-Conn. Stretch/shrink film with improved oxygen transmission
GB2227448B (en) * 1988-11-18 1992-09-30 Grace W R & Co Multi-layer film structure for packaging and bags made therefrom
US5041584A (en) * 1988-12-02 1991-08-20 Texas Alkyls, Inc. Modified methylaluminoxane
CA2003882C (en) * 1988-12-19 1997-01-07 Edwin Rogers Smith Heat shrinkable very low density polyethylene terpolymer film
DE68929006T2 (en) * 1988-12-26 1999-10-07 Mitsui Chemicals Inc Olefin copolymers and process for making them
DK399489D0 (en) * 1989-04-10 1989-08-14 Kohjin Co IRRICULATED AND HEATABLE POLYAETHYLENE FILM
EP0404368A3 (en) * 1989-06-02 1991-05-29 Uniplast Industries Inc. Blends of linear low density polyethylene and low density polyethylene and films for shrink-wrapping therefrom
ATE116203T1 (en) * 1989-06-24 1995-01-15 Dow Chemical Co MULTI-LAYER FILM.
GB8914703D0 (en) * 1989-06-27 1989-08-16 Dow Europ Sa Bioriented film
US5298202A (en) * 1989-07-28 1994-03-29 W. R. Grace & Co.-Conn. Double bubble process for making strong, thin film
NZ235032A (en) * 1989-08-31 1993-04-28 Dow Chemical Co Constrained geometry complexes of titanium, zirconium or hafnium comprising a substituted cyclopentadiene ligand; use as olefin polymerisation catalyst component
US5026798A (en) * 1989-09-13 1991-06-25 Exxon Chemical Patents Inc. Process for producing crystalline poly-α-olefins with a monocyclopentadienyl transition metal catalyst system
US5064802A (en) * 1989-09-14 1991-11-12 The Dow Chemical Company Metal complex compounds
US5075143A (en) * 1989-09-29 1991-12-24 W. R. Grace & Co.-Conn. High barrier implosion resistant films
US5112674A (en) * 1989-11-07 1992-05-12 Exxon Chemical Company Inc. Cling packaging film for wrapping food products
MY141000A (en) * 1990-04-18 2010-02-12 Mitsui Chemicals Inc Process for the preparation of an ethylene copolymer and an olefin polymer, and catalysts for olefin polymerization
US5041585A (en) * 1990-06-08 1991-08-20 Texas Alkyls, Inc. Preparation of aluminoxanes
US5272236A (en) * 1991-10-15 1993-12-21 The Dow Chemical Company Elastic substantially linear olefin polymers
US5089321A (en) * 1991-01-10 1992-02-18 The Dow Chemical Company Multilayer polyolefinic film structures having improved heat seal characteristics
MX9200724A (en) * 1991-02-22 1993-05-01 Exxon Chemical Patents Inc HEAT SEALABLE MIX OF POLYETHYLENE OR PLASTOMER OF VERY LOW DENSITY WITH POLYMERS BASED ON POLYPROPYLENE AND THERMAL SEALABLE FILM AS WELL AS ARTICLES MADE WITH THOSE.
US5250612A (en) * 1991-10-07 1993-10-05 The Dow Chemical Company Polyethylene films exhibiting low blocking force
US5278272A (en) * 1991-10-15 1994-01-11 The Dow Chemical Company Elastic substantialy linear olefin polymers
US5395471A (en) * 1991-10-15 1995-03-07 The Dow Chemical Company High drawdown extrusion process with greater resistance to draw resonance
US5206075A (en) * 1991-12-19 1993-04-27 Exxon Chemical Patents Inc. Sealable polyolefin films containing very low density ethylene copolymers
US5451450A (en) * 1992-02-19 1995-09-19 Exxon Chemical Patents Inc. Elastic articles and a process for their production
RU95110681A (en) * 1992-09-29 1997-01-10 Эксон Кемикэл Пейтентс Инк. (US) Long-chain branched polymers and process for preparing long-chain branched polymers
DE69307905T2 (en) * 1992-10-02 1997-07-24 Du Pont IMPROVED SHRINK FILM AND METHOD FOR THEIR PRODUCTION
ATE291059T1 (en) * 1992-11-13 2005-04-15 Cryovac Inc HEAT SHRINKABLE FILMS CONTAINING COPOLYMERS PRODUCED BY SINGLE SITE CATALYSIS.
US5604043A (en) * 1993-09-20 1997-02-18 W.R. Grace & Co.-Conn. Heat shrinkable films containing single site catalyzed copolymers having long chain branching
DK0682678T3 (en) * 1993-02-03 1999-08-16 Exxon Chemical Patents Inc Thermoplastic elastomer copolymer film
US5320798A (en) * 1993-02-17 1994-06-14 Exxon Chemical Patents, Inc. Method for processing polyolefins at high shear rates
GB9310559D0 (en) * 1993-05-21 1993-07-07 Exxon Chemical Patents Inc Elastic polyethylene compositions

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