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BR8804502A - Pelicula termoplastica de poliolefina tendo propriedades melhoradas de transmissao de oxigenio e processo para sua obtencao - Google Patents

Pelicula termoplastica de poliolefina tendo propriedades melhoradas de transmissao de oxigenio e processo para sua obtencao

Info

Publication number
BR8804502A
BR8804502A BR8804502A BR8804502A BR8804502A BR 8804502 A BR8804502 A BR 8804502A BR 8804502 A BR8804502 A BR 8804502A BR 8804502 A BR8804502 A BR 8804502A BR 8804502 A BR8804502 A BR 8804502A
Authority
BR
Brazil
Prior art keywords
obtaining
thermoplastic film
oxygen transmission
transmission properties
improved oxygen
Prior art date
Application number
BR8804502A
Other languages
English (en)
Inventor
Walter Berndt Mueller
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.)
Filing date
Publication date
Application filed by Grace W R & Co filed Critical Grace W R & Co
Publication of BR8804502A publication Critical patent/BR8804502A/pt

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/04After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04Polymers of ethylene
    • B29K2023/08Copolymers of ethylene
    • B29K2023/083EVA, i.e. ethylene vinyl acetate copolymer
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Packages (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Wrappers (AREA)
BR8804502A 1987-09-02 1988-09-01 Pelicula termoplastica de poliolefina tendo propriedades melhoradas de transmissao de oxigenio e processo para sua obtencao BR8804502A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9201987A 1987-09-02 1987-09-02

Publications (1)

Publication Number Publication Date
BR8804502A true BR8804502A (pt) 1989-04-04

Family

ID=22230875

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8804502A BR8804502A (pt) 1987-09-02 1988-09-01 Pelicula termoplastica de poliolefina tendo propriedades melhoradas de transmissao de oxigenio e processo para sua obtencao

Country Status (5)

Country Link
EP (1) EP0308106A3 (pt)
JP (1) JPH0195138A (pt)
AU (1) AU2182488A (pt)
BR (1) BR8804502A (pt)
ZA (1) ZA886000B (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5112674A (en) * 1989-11-07 1992-05-12 Exxon Chemical Company Inc. Cling packaging film for wrapping food products
US5076988A (en) * 1990-03-09 1991-12-31 Union Carbide Chemicals And Plastics Technology Corporation Process for the extrusion of low density polyethylene
US5256458A (en) * 1990-09-18 1993-10-26 Viskase Corporation Shirred thermoplastic casing having external non-oil based lubricating coating
US5866267A (en) * 1994-11-07 1999-02-02 W. R. Grace & Co.-Conn. Oriented film with improved memory
ITTO20030043A1 (it) * 2003-01-28 2004-07-29 Nuova Poliver Di Oddone Colomba & C Snc Pellicola di polietilene per l'imballaggio di prodotti alimentari
US7338708B2 (en) * 2003-03-05 2008-03-04 Cryovac, Inc. Thick shrink film having high oxygen transmission rate
US7163967B2 (en) * 2003-12-01 2007-01-16 Cryovac, Inc. Method of increasing the gas transmission rate of a film
US7335327B2 (en) 2003-12-31 2008-02-26 Cryovac, Inc. Method of shrinking a film
US7678841B2 (en) 2005-08-19 2010-03-16 Cryovac, Inc. Increasing the gas transmission rate of a film comprising fullerenes
CN106527310A (zh) * 2016-10-31 2017-03-22 深圳前海弘稼科技有限公司 农作物大棚的自动监控方法和装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB881507A (en) * 1959-11-02 1961-11-01 Continental Can Co Improvements in or relating to polyethylene film
US3415925A (en) * 1967-08-01 1968-12-10 Grace W R & Co Process for preparing permeable polyethylene film
JPS5296654A (en) * 1976-02-10 1977-08-13 Ube Ind Ltd Wrapping films
JPS58191734A (ja) * 1982-05-01 1983-11-09 Fujikura Ltd 延伸フイルム
NL8701219A (nl) * 1987-05-22 1988-12-16 Stamicarbon Werkwijze voor het bereiden van een ultra-verstrekbaar polymeer materiaal, ultra-verstrekbaar polymeermateriaal, alsmede werkwijze voor het vervaardigen van voorwerpen.

Also Published As

Publication number Publication date
EP0308106A2 (en) 1989-03-22
EP0308106A3 (en) 1990-04-25
ZA886000B (en) 1989-04-26
JPH0195138A (ja) 1989-04-13
AU2182488A (en) 1989-03-02

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