WO2010038984A3 - Bidirection-shrinkable biodegradable film and process for preparation thereof - Google Patents

Bidirection-shrinkable biodegradable film and process for preparation thereof Download PDF

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Publication number
WO2010038984A3
WO2010038984A3 PCT/KR2009/005602 KR2009005602W WO2010038984A3 WO 2010038984 A3 WO2010038984 A3 WO 2010038984A3 KR 2009005602 W KR2009005602 W KR 2009005602W WO 2010038984 A3 WO2010038984 A3 WO 2010038984A3
Authority
WO
WIPO (PCT)
Prior art keywords
bidirection
biodegradable film
preparation
shrinking
subjected
Prior art date
Application number
PCT/KR2009/005602
Other languages
French (fr)
Other versions
WO2010038984A2 (en
Inventor
Kyung-Youn Kim
Sang Il Kim
Original Assignee
Skc Co., Ltd.
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 Skc Co., Ltd. filed Critical Skc Co., Ltd.
Publication of WO2010038984A2 publication Critical patent/WO2010038984A2/en
Publication of WO2010038984A3 publication Critical patent/WO2010038984A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely thereto
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • 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
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/04—Polyesters derived from hydroxycarboxylic acids
    • B29K2067/046—PLA, i.e. polylactic acid or polylactide
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0049—Heat shrinkable
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0059—Degradable
    • B29K2995/006—Bio-degradable, e.g. bioabsorbable, bioresorbable or bioerodible
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

A bidirection-shrinkable biodegradable film comprising polylactic acid- based resin containing at least 80 % by weight of the L-lactic acid repeating unit, wherein the film has a shrinkability of 10 to 50 % in both the longitudinal and transverse directions, as measured after being subjected to shrinking in a 100 0C air oven for 10 min; an initial elastic modulus of 50 to 350 kgf/mm2 obtained from a strain-stress curve; and an elongation reduction (ΔE) of 0 to 70 %, as measured after being subjected to shrinking in a 120 0C air tunnel for 10 sec, exhibits improved uniform shrinkability, flexibility, and rupture resistance, which is useful for packaging or wrapping.
PCT/KR2009/005602 2008-10-02 2009-09-30 Bidirection-shrinkable biodegradable film and process for preparation thereof WO2010038984A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0096961 2008-10-02
KR1020080096961A KR101012167B1 (en) 2008-10-02 2008-10-02 Bidirectional shrinkable biodegradable film and preparation method thereof

Publications (2)

Publication Number Publication Date
WO2010038984A2 WO2010038984A2 (en) 2010-04-08
WO2010038984A3 true WO2010038984A3 (en) 2010-06-17

Family

ID=42074011

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/005602 WO2010038984A2 (en) 2008-10-02 2009-09-30 Bidirection-shrinkable biodegradable film and process for preparation thereof

Country Status (2)

Country Link
KR (1) KR101012167B1 (en)
WO (1) WO2010038984A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101695926B1 (en) * 2010-12-02 2017-01-12 에스케이씨 주식회사 Polyester film and preparation method thereof
US20140151258A1 (en) * 2012-12-03 2014-06-05 Cryovac, Inc. Polymeric Films Comprising Biodegradable Polyester or Copolymer Thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004058586A (en) * 2002-07-31 2004-02-26 Mitsubishi Plastics Ind Ltd Polylactic acid heat-shrinkable film
KR20050040851A (en) * 2001-11-01 2005-05-03 아사히 가세이 라이프 앤드 리빙 가부시키가이샤 Biaxially oriented polylactic acid-based resin films
JP2007161825A (en) * 2005-12-12 2007-06-28 Mitsubishi Plastics Ind Ltd Heat-shrinkable void-containing film, molded article and heat-shrinkable label using the film, and container
KR20080011321A (en) * 2005-05-11 2008-02-01 미쓰비시 쥬시 가부시끼가이샤 Heat-shrinkable film, moldings and heat-shrinkable labels made by using the film, and containers made by using the moldings or fitted with the labels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050040851A (en) * 2001-11-01 2005-05-03 아사히 가세이 라이프 앤드 리빙 가부시키가이샤 Biaxially oriented polylactic acid-based resin films
JP2004058586A (en) * 2002-07-31 2004-02-26 Mitsubishi Plastics Ind Ltd Polylactic acid heat-shrinkable film
KR20080011321A (en) * 2005-05-11 2008-02-01 미쓰비시 쥬시 가부시끼가이샤 Heat-shrinkable film, moldings and heat-shrinkable labels made by using the film, and containers made by using the moldings or fitted with the labels
JP2007161825A (en) * 2005-12-12 2007-06-28 Mitsubishi Plastics Ind Ltd Heat-shrinkable void-containing film, molded article and heat-shrinkable label using the film, and container

Also Published As

Publication number Publication date
WO2010038984A2 (en) 2010-04-08
KR101012167B1 (en) 2011-02-07
KR20100037727A (en) 2010-04-12

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