TW200732150A - Thermally shrinkable multilayer membrane - Google Patents

Thermally shrinkable multilayer membrane

Info

Publication number
TW200732150A
TW200732150A TW095134335A TW95134335A TW200732150A TW 200732150 A TW200732150 A TW 200732150A TW 095134335 A TW095134335 A TW 095134335A TW 95134335 A TW95134335 A TW 95134335A TW 200732150 A TW200732150 A TW 200732150A
Authority
TW
Taiwan
Prior art keywords
ethylene
melting heat
amount
membrane
melting
Prior art date
Application number
TW095134335A
Other languages
Chinese (zh)
Other versions
TWI341790B (en
Inventor
Masayuki Yoshino
Yutaka Matsuki
Original Assignee
Asahi Kasei Life & Living Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Kasei Life & Living Corp filed Critical Asahi Kasei Life & Living Corp
Publication of TW200732150A publication Critical patent/TW200732150A/en
Application granted granted Critical
Publication of TWI341790B publication Critical patent/TWI341790B/zh

Links

Classifications

    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • 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
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • 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
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • 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
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2307/554—Wear resistance
    • 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
    • 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
    • B32B2307/738—Thermoformability
    • 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
    • B32B2435/00—Closures, end caps, stoppers
    • B32B2435/02—Closures, end caps, stoppers for containers
    • 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
    • B32B2439/40—Closed containers
    • B32B2439/62—Boxes, cartons, cases
    • 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

  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Disclosed is a thermally shrinkable multilayer membrane having at least three layers composed of both surface layers and an interlayer. Each of the surface layers comprises an ethylene-a-olefin copolymer having a density falling within a specified range. The interlayer comprises a composition comprising an ethylene-a-olefin copolymer having a density falling within a specified range and at least one resin selected from a high-pressure low-density polyethylene, an ethylene-vinyl acetate copolymer, an ethylene-aliphatic unsaturated carboxylic acid copolymer, and an ethylene-aliphatic unsaturated carboxylic acid ester copolymer, in an amount of 50 to 100 wt%. The thermally shrinkable multilayer membrane has the following characteristics (1) and (2): (1) the resin constituting the surface layers has the ratio of the amount of melting heat at 100 degree Celsius or lower relative to the total amount of melting heat of 40 to 75% in the second melting behavior in differential scanning calorimetry; and (2) the membrane has the ratio of the amount of melting heat at 100 degree Celsius or lower relative to the total amount of melting heat of 45% or more and the ratio of the amount of melting heat at 110 degree Celsius or lower relative to the total amount of melting heat of 70% or more in the second melting behavior in differential scanning calorimetry. The membrane enables the formation of a packaged article having a beautiful appearance without the need of decreasing the packaging speed. A container formed from the membrane shows no deformation even after heated with a microwave oven and no cohesion between membranes.
TW095134335A 2005-09-15 2006-09-15 Thermally shrinkable multilayer membrane TW200732150A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005268800 2005-09-15
PCT/JP2006/317971 WO2007032306A1 (en) 2005-09-15 2006-09-11 Thermally shrinkable multilayer sheet

Publications (2)

Publication Number Publication Date
TW200732150A true TW200732150A (en) 2007-09-01
TWI341790B TWI341790B (en) 2011-05-11

Family

ID=37864899

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095134335A TW200732150A (en) 2005-09-15 2006-09-15 Thermally shrinkable multilayer membrane

Country Status (3)

Country Link
JP (1) JP4954882B2 (en)
TW (1) TW200732150A (en)
WO (1) WO2007032306A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4818169B2 (en) * 2007-03-14 2011-11-16 旭化成ケミカルズ株式会社 Heat shrinkable multilayer film
JP5025412B2 (en) * 2007-10-18 2012-09-12 旭化成ケミカルズ株式会社 Heat shrinkable film
JP5601804B2 (en) * 2008-12-22 2014-10-08 興人フィルム＆ケミカルズ株式会社 Polyethylene-based crosslinked shrink film
WO2012001182A1 (en) * 2010-07-02 2012-01-05 Dow Global Technologies Llc Stretch hoods made from uldpe-rich formulations
JP5722081B2 (en) * 2011-03-07 2015-05-20 興人フィルム＆ケミカルズ株式会社 Polyethylene-based crosslinked shrink film with excellent shrink finish
US20190344548A1 (en) * 2016-11-24 2019-11-14 Sabic Global Technologies B.V. Multi-layer film
EP3827117B1 (en) * 2018-07-26 2022-10-12 Dow Global Technologies LLC Method for shrink wrapping two or more articles

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5460861A (en) * 1994-05-10 1995-10-24 Viskase Corporation Multilayer stretch/shrink film
JP3272554B2 (en) * 1994-09-20 2002-04-08 株式会社興人 Multilayer polyethylene stretch shrink film and method for producing the same
JP3188175B2 (en) * 1995-12-04 2001-07-16 旭化成株式会社 Packaging film and shrink package using the same
JP4205258B2 (en) * 1999-06-17 2009-01-07 旭化成ケミカルズ株式会社 Heat shrinkable multilayer film
JP2001145987A (en) * 1999-09-07 2001-05-29 Ube Ind Ltd Multilayered film for packaging
JP2001151915A (en) * 1999-11-29 2001-06-05 Oji Paper Co Ltd Polyolefinic, biaxially stretched, heat-shrinkable film
JP2001150600A (en) * 1999-11-30 2001-06-05 Asahi Kasei Corp Stretch shrink multilayered film
JP2002120343A (en) * 2000-10-16 2002-04-23 Asahi Kasei Corp Film for high speed packaging and package comprising the same
JP3589640B2 (en) * 2000-11-01 2004-11-17 旭化成ライフ＆リビング株式会社 Packaging film
JP2003260764A (en) * 2002-03-07 2003-09-16 Asahi Kasei Corp Polyolefin resin heat-shrinkable multi-layer film

Also Published As

Publication number Publication date
JP4954882B2 (en) 2012-06-20
WO2007032306A1 (en) 2007-03-22
JPWO2007032306A1 (en) 2009-03-19
TWI341790B (en) 2011-05-11

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