CA2047469A1 - Biaxially oriented sealable polypropylene film having improved barrier properties - Google Patents

Biaxially oriented sealable polypropylene film having improved barrier properties

Info

Publication number
CA2047469A1
CA2047469A1 CA002047469A CA2047469A CA2047469A1 CA 2047469 A1 CA2047469 A1 CA 2047469A1 CA 002047469 A CA002047469 A CA 002047469A CA 2047469 A CA2047469 A CA 2047469A CA 2047469 A1 CA2047469 A1 CA 2047469A1
Authority
CA
Canada
Prior art keywords
barrier properties
improved barrier
propylene
ethylene
biaxially oriented
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
CA002047469A
Other languages
French (fr)
Other versions
CA2047469C (en
Inventor
Detlef Erich Schuhmann
Herbert Peiffer
Ursula Murschall
Gunter Schloegl
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.)
Trespaphan GmbH and Co KG
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6410779&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2047469(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2047469A1 publication Critical patent/CA2047469A1/en
Application granted granted Critical
Publication of CA2047469C publication Critical patent/CA2047469C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • 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
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for

Abstract

A sealable film is disclosed comprising (i) a base layer comprising polypropylene and a hydrocarbon resin having a softening point of at least 140°C, and (ii) at least one top layer comprising (a) an ethylene/propylene copolymer having an ethylene content of not more than about 10% by weight, (b) a propylene/1-butene copolymer, (c) a propylene/ethylene/alpha-olefin terpolymer, or (d) a blend of two or more of (a), (b) and (c), wherein at least one of said base layer and said at least one top layer contains an anti-blocking agent or lubricant. The film possesses improved barrier properties with respect to permeability to water vapor and oxygen, and which at the same time exhibits favorable slip properties and low shrink values.
CA002047469A 1990-07-21 1991-07-19 Biaxially oriented sealable polypropylene film having improved barrier properties Expired - Lifetime CA2047469C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4023272A DE4023272A1 (en) 1990-07-21 1990-07-21 BIAXIAL ORIENTED SEALABLE POLYPORPYLENE FILM WITH IMPROVED BARRIER PROPERTIES
DEP4023272.7 1990-07-21

Publications (2)

Publication Number Publication Date
CA2047469A1 true CA2047469A1 (en) 1992-01-22
CA2047469C CA2047469C (en) 2002-02-19

Family

ID=6410779

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002047469A Expired - Lifetime CA2047469C (en) 1990-07-21 1991-07-19 Biaxially oriented sealable polypropylene film having improved barrier properties

Country Status (8)

Country Link
EP (1) EP0468333B1 (en)
CA (1) CA2047469C (en)
DE (2) DE4023272A1 (en)
ES (1) ES2098283T3 (en)
FI (1) FI106008B (en)
GR (1) GR3022444T3 (en)
MX (1) MX9100311A (en)
ZA (1) ZA915728B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2599627A1 (en) 2011-12-02 2013-06-05 Irplast S.p.A. Plastic films
EP2599628A1 (en) 2011-12-02 2013-06-05 Irplast S.p.A. Plastic films

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307442A1 (en) * 1993-03-10 1994-09-15 Wolff Walsrode Ag Multi-layer, stretched, heat-sealable polypropylene film
DE4307441A1 (en) * 1993-03-10 1994-09-15 Wolff Walsrode Ag Multi-layer, stretched, heat-sealable, highly sliding polypropylene film with improved barrier properties
DE4307440A1 (en) * 1993-03-10 1994-09-15 Wolff Walsrode Ag Multilayer, stretched, heat-sealable polypropylene film
DE4308854A1 (en) * 1993-03-19 1994-09-22 Hoechst Ag Sealable oriented polyolefin multilayer film, process for its production and its use
DE4310684A1 (en) * 1993-04-01 1994-10-06 Hoechst Ag Sealable, oriented polyolefin multilayer film, process for its production and its use
DE4337251A1 (en) * 1993-09-27 1995-03-30 Hoechst Ag Biaxially oriented polypropylene film with improved properties in terms of mechanics and barrier
DE4334334A1 (en) * 1993-10-08 1995-04-13 Wolff Walsrode Ag Multilayered, stretched, heat-sealable polypropylene film
DE69502851T2 (en) * 1994-02-25 1998-11-12 Sumitomo Chemical Co Statistical propylene copolymer and film laminate thereof
DE4417118A1 (en) * 1994-05-16 1995-11-23 Hoechst Ag High-strength, biaxially oriented polypropylene film
DE19536043A1 (en) * 1995-09-28 1997-04-10 Hoechst Ag Polyolefin film with cycloolefin polymer, process for its production and its use
US6210764B1 (en) 1996-08-29 2001-04-03 Cryovac, Inc. Film with substrate layer containing antiblocking agent
DE19848683B4 (en) * 1998-10-22 2004-05-06 Basf Ag Laminated sheet
EP1634699A1 (en) 2004-09-10 2006-03-15 Syrom 90 S.P.A. Multilayer metallized film and production method
WO2006069425A2 (en) * 2004-12-27 2006-07-06 Empresa Brasileira De Filmes Flexíveis Ltda. A heat-sealable bi-oriented polypropylene film, use of this film and an article prepared from said film

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438736A1 (en) * 1984-10-23 1986-04-24 Hoechst Ag, 6230 Frankfurt COEXTRUDED MULTILAYER AND BIAXIAL STRETCHED, OPAQUE POLYOLEFIN FILM WITH IMPROVED MECHANICAL PROPERTIES, METHOD FOR THEIR PRODUCTION AND THEIR USE
DE3535472A1 (en) * 1985-10-04 1987-04-09 Hoechst Ag TRANSPARENT POLYPROPYLENE FILM FOR THE SWEET WRAP
GB8613161D0 (en) * 1986-05-30 1986-07-02 Exxon Chemical Patents Inc Sealable films
DE3814942A1 (en) * 1988-05-03 1989-11-16 Hoechst Ag HOT-SEALANT SHRINK FILM BASED ON POLYPROPYLENE, METHOD FOR THE PRODUCTION THEREOF, AND ITS USE IN FOAM PACKAGING LABELS
DE3821581A1 (en) * 1988-06-25 1989-12-28 Hoechst Ag TRANSPARENT SHRINK FILM BASED ON POLYPROPYLENE, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE FOR SHRINK FETTIQUETTES
JPH0645227B2 (en) * 1989-09-25 1994-06-15 チッソ株式会社 Laminated stretch molded article having opaque and pearly luster and method for producing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2599627A1 (en) 2011-12-02 2013-06-05 Irplast S.p.A. Plastic films
EP2599628A1 (en) 2011-12-02 2013-06-05 Irplast S.p.A. Plastic films

Also Published As

Publication number Publication date
DE4023272A1 (en) 1992-01-23
MX9100311A (en) 1992-02-28
ZA915728B (en) 1992-04-29
GR3022444T3 (en) 1997-04-30
DE59108429D1 (en) 1997-02-06
FI913497A0 (en) 1991-07-19
CA2047469C (en) 2002-02-19
EP0468333B1 (en) 1996-12-27
EP0468333A3 (en) 1992-03-04
FI913497A (en) 1992-01-22
FI106008B (en) 2000-11-15
EP0468333A2 (en) 1992-01-29
ES2098283T3 (en) 1997-05-01

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry
MKEX Expiry

Effective date: 20110719

MKEX Expiry

Effective date: 20110719