FR2405972A1 - Heat-shrinkable packaging film from polyolefin blends - made by extrusion, crosslinking and cold stretching - Google Patents

Heat-shrinkable packaging film from polyolefin blends - made by extrusion, crosslinking and cold stretching

Info

Publication number
FR2405972A1
FR2405972A1 FR7828860A FR7828860A FR2405972A1 FR 2405972 A1 FR2405972 A1 FR 2405972A1 FR 7828860 A FR7828860 A FR 7828860A FR 7828860 A FR7828860 A FR 7828860A FR 2405972 A1 FR2405972 A1 FR 2405972A1
Authority
FR
France
Prior art keywords
heat
films
copolymer
density
ethylene
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
FR7828860A
Other languages
French (fr)
Other versions
FR2405972B1 (en
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.)
Asahi Dow Ltd
Original Assignee
Asahi Dow 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
Priority claimed from JP12091777A external-priority patent/JPS5455071A/en
Priority claimed from JP13943177A external-priority patent/JPS5472279A/en
Priority claimed from JP6387278A external-priority patent/JPS54155271A/en
Priority claimed from JP6387078A external-priority patent/JPS54155269A/en
Application filed by Asahi Dow Ltd filed Critical Asahi Dow Ltd
Priority to FR7828860A priority Critical patent/FR2405972B1/en
Publication of FR2405972A1 publication Critical patent/FR2405972A1/en
Application granted granted Critical
Publication of FR2405972B1 publication Critical patent/FR2405972B1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions 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
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions 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
    • C08L23/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions 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
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers

Landscapes

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

Abstract

Homogeneous blends of copolymer (B) with polymers (A) and/or (C), in which (B) is an ethylene/alpha-olefin copolymer with density 0.91 max., (A) is low density PE and/or a copolymer of ethylene with vinyl ester, unsatd. aliphatic monocarboxylic acid or its alkyl ester, and (C) is crystalline PP, high density PE and/or crystalline polybutene-1. Film is mfd. from the above blends by extruding as tube, rapid cooling with liquid coolant and pref. cross-linking, followed by stretching at 20-100 degrees C, longitudinally between rollers and transversely by interior air pressure, with stretch ratio 50-30:1. Used esp. for packaging of foods, etc. by shrink-wrapping. The films develop satisfactory shrink stress at low temps. and over a wide temp. range. Optical properties, heat sealing and film strength are very good. Films are superior to plasticised PVC and PP heat-shrinkable films, and combine the best features of both.
FR7828860A 1977-10-11 1978-10-10 COMPOSITION FOR STRETCHED FILM, STRETCHED FILM THEREOF AND METHOD FOR MANUFACTURING SAME Expired FR2405972B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7828860A FR2405972B1 (en) 1977-10-11 1978-10-10 COMPOSITION FOR STRETCHED FILM, STRETCHED FILM THEREOF AND METHOD FOR MANUFACTURING SAME

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP12091777A JPS5455071A (en) 1977-10-11 1977-10-11 High cold-oriented film and its production
JP13943177A JPS5472279A (en) 1977-11-22 1977-11-22 Highly cold drawn film and its production
JP6387278A JPS54155271A (en) 1978-05-30 1978-05-30 Highly oriented film by cold drawing and its production
JP6387078A JPS54155269A (en) 1978-05-30 1978-05-30 Highly oriented film by cold drawing and its production
FR7828860A FR2405972B1 (en) 1977-10-11 1978-10-10 COMPOSITION FOR STRETCHED FILM, STRETCHED FILM THEREOF AND METHOD FOR MANUFACTURING SAME

Publications (2)

Publication Number Publication Date
FR2405972A1 true FR2405972A1 (en) 1979-05-11
FR2405972B1 FR2405972B1 (en) 1988-02-12

Family

ID=27515414

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828860A Expired FR2405972B1 (en) 1977-10-11 1978-10-10 COMPOSITION FOR STRETCHED FILM, STRETCHED FILM THEREOF AND METHOD FOR MANUFACTURING SAME

Country Status (1)

Country Link
FR (1) FR2405972B1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035630A2 (en) * 1980-02-01 1981-09-16 Ec Erdölchemie Gmbh Blends containing an ethylene-vinyl copolymer and an ethylene-propylene rubber, process for their preparation and their use
EP0043743A1 (en) * 1980-06-25 1982-01-13 Société Chimique des Charbonnages Compositions of high-pressure polyethylene and ethylene/propylene copolymers for the manufacture of films
EP0052889A1 (en) * 1980-11-26 1982-06-02 Union Carbide Corporation Process for high-speed extrusion coating using a composition containing a linear low density ethylene hydrocarbon copolymer
FR2545828A1 (en) * 1983-05-13 1984-11-16 Grace W R Ltd FORMED FILM OF A POLYMERIC MIXTURE HAVING SILENT AND PLIABILITY CHARACTERISTICS, AND CONTAINERS FORMED THEREFROM
EP0266982A2 (en) * 1986-10-30 1988-05-11 Mitsui Petrochemical Industries, Ltd. Laminated and molded article prepared therefrom
EP0269325A2 (en) * 1986-11-17 1988-06-01 W.R. Grace & Co.-Conn. Multiple-layer, cook-in film
FR2654433A1 (en) * 1989-11-16 1991-05-17 Norsolor Sa THERMOPLASTIC MEMORY COMPOSITIONS WITH ELASTIC MEMORY AND PROCESS FOR THEIR PREPARATION.
EP0524572A1 (en) * 1991-07-24 1993-01-27 Mitsubishi Chemical Corporation Stretched, laminated film

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256367A (en) * 1962-08-14 1966-06-14 Union Carbide Corp Polypropylene compositions having improved impact strength containing polyethylene and ethylene-propylene copolymer
US3361852A (en) * 1965-09-15 1968-01-02 Union Carbide Corp Ternary polypropylene compositions containing ethylene/propylene and ethylene/vinyl ester copolymers
US3879492A (en) * 1971-05-18 1975-04-22 Ucb Sa Heat-sealable film capable of forming peelable seals
GB1413380A (en) * 1972-02-01 1975-11-12 Du Pont Canada High density polyethylene film
GB1466190A (en) * 1974-05-09 1977-03-02 Du Pont Heat-sealable composition
US4087485A (en) * 1976-08-16 1978-05-02 Exxon Research & Engineering Co. Polypropylene blends having high impact strength and improved optical properties

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256367A (en) * 1962-08-14 1966-06-14 Union Carbide Corp Polypropylene compositions having improved impact strength containing polyethylene and ethylene-propylene copolymer
US3361852A (en) * 1965-09-15 1968-01-02 Union Carbide Corp Ternary polypropylene compositions containing ethylene/propylene and ethylene/vinyl ester copolymers
US3879492A (en) * 1971-05-18 1975-04-22 Ucb Sa Heat-sealable film capable of forming peelable seals
GB1413380A (en) * 1972-02-01 1975-11-12 Du Pont Canada High density polyethylene film
GB1466190A (en) * 1974-05-09 1977-03-02 Du Pont Heat-sealable composition
US4087485A (en) * 1976-08-16 1978-05-02 Exxon Research & Engineering Co. Polypropylene blends having high impact strength and improved optical properties

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035630A2 (en) * 1980-02-01 1981-09-16 Ec Erdölchemie Gmbh Blends containing an ethylene-vinyl copolymer and an ethylene-propylene rubber, process for their preparation and their use
EP0035630A3 (en) * 1980-02-01 1981-12-30 Ec Erdölchemie Gmbh Blends containing an ethylene-vinyl copolymer and an ethylene-propylene rubber, process for their preparation and their use
EP0043743A1 (en) * 1980-06-25 1982-01-13 Société Chimique des Charbonnages Compositions of high-pressure polyethylene and ethylene/propylene copolymers for the manufacture of films
FR2488268A1 (en) * 1980-06-25 1982-02-12 Charbonnages Ste Chimique COMPOSITIONS OF RADICAL POLYETHYLENE AND ETHYLENE-PROPYLENE COPOLYMERS AND FILMS OBTAINED THEREFROM
EP0052889A1 (en) * 1980-11-26 1982-06-02 Union Carbide Corporation Process for high-speed extrusion coating using a composition containing a linear low density ethylene hydrocarbon copolymer
FR2545828A1 (en) * 1983-05-13 1984-11-16 Grace W R Ltd FORMED FILM OF A POLYMERIC MIXTURE HAVING SILENT AND PLIABILITY CHARACTERISTICS, AND CONTAINERS FORMED THEREFROM
EP0266982A2 (en) * 1986-10-30 1988-05-11 Mitsui Petrochemical Industries, Ltd. Laminated and molded article prepared therefrom
EP0266982A3 (en) * 1986-10-30 1989-08-16 Mitsui Petrochemical Industries, Ltd. Laminated and molded article prepared therefrom
EP0269325A3 (en) * 1986-11-17 1989-03-01 W.R. Grace & Co. Multiple-layer, cook-in film
EP0269325A2 (en) * 1986-11-17 1988-06-01 W.R. Grace & Co.-Conn. Multiple-layer, cook-in film
FR2654433A1 (en) * 1989-11-16 1991-05-17 Norsolor Sa THERMOPLASTIC MEMORY COMPOSITIONS WITH ELASTIC MEMORY AND PROCESS FOR THEIR PREPARATION.
WO1991007460A1 (en) * 1989-11-16 1991-05-30 Atochem Film memory thermoplastic compositions and method for preparing same
EP0431996A1 (en) * 1989-11-16 1991-06-12 Elf Atochem S.A. Elastic memory thermoplastic compositions and process for their preparation
US5250628A (en) * 1989-11-16 1993-10-05 Elf Atochem S.A. Thermoplastic compositions with elastic memory and a process for their preparation
EP0524572A1 (en) * 1991-07-24 1993-01-27 Mitsubishi Chemical Corporation Stretched, laminated film
US5273811A (en) * 1991-07-24 1993-12-28 Mitsubishi Kasei Corporation Stretched, laminated film

Also Published As

Publication number Publication date
FR2405972B1 (en) 1988-02-12

Similar Documents

Publication Publication Date Title
US3634553A (en) Heat shrinkable films of polypropylene and an ethylene/butene copolymer
US4178401A (en) Packaging film comprising a blended self-welding layer
EP0087080B1 (en) Laminate film
US4196240A (en) Heat shrinkable multilayer packaging film of blended copolymers and elastomers
US4302557A (en) Cold drawn film made of an ethylene polymer blend composition
US3365520A (en) Novel ethylene polymer compositions containing 1-olefin/carboxylic acid salt interpolymers
US4801652A (en) Heat shrinkable film
RU2159186C2 (en) Laminated thermoshrinkage film
US3370112A (en) Process and apparatus for producing plastic memory articles
US5709932A (en) Ultra thin heat-shrinkable monolayer polyethylene films
US3849520A (en) Resinous blend and oriented shrink film comprising polypropylene,polybutene and ethylene/butene copolymer
CA2148072A1 (en) Multilayer polyolefin film containing recycle polymer for irradiated films
FR2405972A1 (en) Heat-shrinkable packaging film from polyolefin blends - made by extrusion, crosslinking and cold stretching
JPH0687193A (en) Multilayer stretch/shrink film
GB1033959A (en) Self-sealing article and process
JPH0725153B2 (en) Oriented films from polypropylene copolymers and unplasticized vinylidene chloride copolymers.
RU2123429C1 (en) Layered thermocontractable film and sac manufactured from it
US4183882A (en) Self-welding packaging film
JP2660796B2 (en) Moisture shrinkable resin molding
GB1253272A (en) Polyolefin films and aeronautical balloons produced therefrom
JP3141956B2 (en) Polyethylene heat shrinkable film with excellent transparency
Delassus Factors affecting the carbon dioxide barrier of vinylidene chloride‐vinyl chloride copolymer films
KR910012015A (en) Improved method of producing heat shrinkable polyolefin film
FR2356693A1 (en) High density and low density polyethylene blend - contg. polyethylene glycol additive, suitable for extrusion into films for bags
JPS57142323A (en) Preparation of biaxially oriented synthetic paper

Legal Events

Date Code Title Description
TP Transmission of property