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IT1163825B - Pellicola di polietilene lineare a bassa densita' e relativo procedimento di preparazione - Google Patents

Pellicola di polietilene lineare a bassa densita' e relativo procedimento di preparazione

Info

Publication number
IT1163825B
IT1163825B IT22158/83A IT2215883A IT1163825B IT 1163825 B IT1163825 B IT 1163825B IT 22158/83 A IT22158/83 A IT 22158/83A IT 2215883 A IT2215883 A IT 2215883A IT 1163825 B IT1163825 B IT 1163825B
Authority
IT
Italy
Prior art keywords
low density
polyethylene film
preparation procedure
linear polyethylene
density linear
Prior art date
Application number
IT22158/83A
Other languages
English (en)
Other versions
IT8322158A1 (it
IT8322158A0 (it
Inventor
Leopoldo V Cancio
James N Fitzsimmons
Robert M Mortellite
Wu Paichuan
Original Assignee
Clopay 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 Clopay Corp filed Critical Clopay Corp
Publication of IT8322158A0 publication Critical patent/IT8322158A0/it
Publication of IT8322158A1 publication Critical patent/IT8322158A1/it
Application granted granted Critical
Publication of IT1163825B publication Critical patent/IT1163825B/it

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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • B29C48/9155—Pressure rollers
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • B29C48/917—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means by applying pressurised gas to the surface of the flat article
    • 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
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • 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
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0625—LLDPE, i.e. linear low density polyethylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
IT22158/83A 1982-07-21 1983-07-20 Pellicola di polietilene lineare a bassa densita' e relativo procedimento di preparazione IT1163825B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/400,416 US4668463A (en) 1982-07-21 1982-07-21 Method of making linear low density polyethylene film

Publications (3)

Publication Number Publication Date
IT8322158A0 IT8322158A0 (it) 1983-07-20
IT8322158A1 IT8322158A1 (it) 1985-01-20
IT1163825B true IT1163825B (it) 1987-04-08

Family

ID=23583523

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22158/83A IT1163825B (it) 1982-07-21 1983-07-20 Pellicola di polietilene lineare a bassa densita' e relativo procedimento di preparazione

Country Status (14)

Country Link
US (1) US4668463A (it)
JP (1) JPS5967016A (it)
AR (1) AR231615A1 (it)
AU (1) AU553258B2 (it)
BE (1) BE897338A (it)
BR (1) BR8303887A (it)
CA (1) CA1191315A (it)
CH (1) CH653952A5 (it)
DE (1) DE3326056A1 (it)
FR (1) FR2530530B1 (it)
GB (1) GB2124139B (it)
IT (1) IT1163825B (it)
NL (1) NL189654C (it)
SE (1) SE461713B (it)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0139089A3 (en) * 1983-06-28 1986-01-08 Union Carbide Corporation Process for reducing vedge waver during formation of film from lldpe resins
US4552709A (en) * 1983-11-04 1985-11-12 The Procter & Gamble Company Process for high-speed production of webs of debossed and perforated thermoplastic film
DE3521331A1 (de) * 1984-07-03 1986-01-30 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zur herstellung eines hochfesten polymerfilms und vorrichtung zur ausfuehrung des verfahrens
US4608221A (en) * 1984-12-28 1986-08-26 Union Carbide Corporation Process for reducing draw resonance in polymeric film
NL8502191A (nl) * 1985-08-06 1987-03-02 Stamicarbon Werkwijze voor het vervaardigen van vlakfolie.
NZ218971A (en) * 1986-01-21 1989-05-29 Mitsui Toatsu Chemicals Porous polyolefin films and their preparation
DE3623936C1 (it) * 1986-07-16 1987-12-03 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De
NL8700305A (nl) * 1987-02-10 1988-09-01 Stamicarbon Werkwijze voor het vervaardigen van vlakfolie uit hogedichtheid polyetheen.
US4780264A (en) * 1987-05-22 1988-10-25 The Dow Chemical Company Linear low density polyethylene cast film
US4859379A (en) * 1987-12-30 1989-08-22 Mobil Oil Corporation Process for reducing draw resonance by heating film after extrusion
US4897293A (en) * 1988-07-12 1990-01-30 Kendall Company Novel roofing membrane and method of making
US5395471A (en) * 1991-10-15 1995-03-07 The Dow Chemical Company High drawdown extrusion process with greater resistance to draw resonance
US5674342A (en) * 1991-10-15 1997-10-07 The Dow Chemical Company High drawdown extrusion composition and process
US5582923A (en) 1991-10-15 1996-12-10 The Dow Chemical Company Extrusion compositions having high drawdown and substantially reduced neck-in
DE4413363A1 (de) * 1994-04-18 1995-10-26 Tegafol Gmbh Verfahren zur Herstellung von PP-Folien mit erhöhter Festigkeit
US5792534A (en) 1994-10-21 1998-08-11 The Dow Chemical Company Polyolefin film exhibiting heat resistivity, low hexane extractives and controlled modulus
US5618568A (en) * 1995-02-01 1997-04-08 Extrusion Dies, Inc. Dual-chamber vacuum box
DE19538049C2 (de) * 1995-10-12 1997-10-23 Bp Chemicals Plastec Gmbh Verfahren zur Herstellung einer Folienbahn
BE1010654A3 (fr) * 1996-09-30 1998-11-03 Solvay Procede de mise en oeuvre d'une matiere thermoplastique semi-cristalline.
DE19848395C2 (de) * 1997-11-13 2003-01-30 Tv Mainrollo Gmbh Kühlmöbel mit einer Abdeckung
DE19844786C2 (de) * 1998-09-30 2002-10-31 Tv Mainrollo Gmbh Kühlmöbel mit einer Abschirmung
ATE240202T1 (de) * 1999-09-14 2003-05-15 Clopay Plastic Prod Co Hochgeschwindigkeitsverfahren zur herstellung von kunststofffolien und laminaten mit vliesstoffen
US6619941B1 (en) * 2000-04-28 2003-09-16 Battenfeld Gloucester Engineering Co., Inc. Cast film cooling device
US7374045B2 (en) * 2003-03-26 2008-05-20 Diliberto Samuel L Disaster pack and method for making the same
DK1716830T3 (da) 2005-04-26 2007-11-12 Rkw Ag Fremgangsmåde til fremstilling af en foliebane
US7870960B2 (en) * 2005-09-16 2011-01-18 Diliberto Samuel L Disaster pack
DE102005054032A1 (de) * 2005-11-10 2007-05-16 Tesa Ag Verfahren zur Herstellung von Haftklebemassen hoher Anisotropie
WO2009099968A2 (en) * 2008-02-01 2009-08-13 Clear Fx, Llc Art infused films and methods for making the same
US8100356B2 (en) * 2008-07-21 2012-01-24 Paragon Films, Inc. Apparatus and method for winding film onto a film roll
EP2256159A1 (en) * 2009-05-26 2010-12-01 Borealis AG Polymer composition for crosslinked pipes
PL2256158T3 (pl) * 2009-05-26 2014-09-30 Borealis Ag Kompozycja polimerowa do usieciowanych wyrobów
EP3124236A1 (en) 2011-06-17 2017-02-01 Fiberweb, Inc. Vapor permeable, substantially water impermeable multilayer article
ES2643697T3 (es) 2011-06-23 2017-11-23 Fiberweb, Llc Artículo multicapa permeable al vapor y prácticamente impermeable al agua
WO2012178027A2 (en) 2011-06-23 2012-12-27 Fiberweb, Inc. Vapor-permeable, substantially water-impermeable multilayer article
WO2012178011A2 (en) 2011-06-24 2012-12-27 Fiberweb, Inc. Vapor-permeable, substantially water-impermeable multilayer article
ES2590205T3 (es) 2011-09-02 2016-11-18 Rkw Se Procedimiento para el estirado de una lámina continúa
US9492332B2 (en) 2014-05-13 2016-11-15 Clopay Plastic Products Company, Inc. Breathable and microporous thin thermoplastic film
PE20180807A1 (es) * 2015-07-10 2018-05-09 Berry Plastics Corp Pelicula transpirable microporosa y metodo para fabricar la pelicula transpirable microporosa
US11472085B2 (en) 2016-02-17 2022-10-18 Berry Plastics Corporation Gas-permeable barrier film and method of making the gas-permeable barrier film
ITUA20162365A1 (it) * 2016-04-07 2017-10-07 Colines Spa Sistema e metodo per la riduzione della risonanza di stiro in impianti per la produzione di film plastici
WO2020094643A1 (en) 2018-11-05 2020-05-14 Kloner S.L. Co-extruded multilayer structure and method for obtaining thereof
US11584111B2 (en) 2018-11-05 2023-02-21 Windmoeller & Hoelscher Kg Breathable thermoplastic film with reduced shrinkage
CN113263729B (zh) * 2021-07-16 2021-10-08 广东天安新材料股份有限公司 一种多层聚氯乙烯薄膜的层压方法

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2137235A (en) * 1937-02-15 1938-11-22 Du Pont Shaped articles from polymeric materials
US2945261A (en) * 1956-05-31 1960-07-19 Monsanto Chemicals Preparation of foamed thermoplastic resin forms having wrinkle-free profile surfaces
BE591344A (it) * 1960-06-03 1900-01-01
US3161560A (en) * 1961-01-04 1964-12-15 Int Paper Co Extrusion coated paper and method of making the same
CH393727A (de) * 1961-04-20 1965-06-15 Kalle Ag Verfahren zur Herstellung von Polyolefin-Flachfolien
DE1504432C3 (de) * 1961-04-20 1974-09-19 Kalle Ag, 6202 Wiesbaden-Biebrich Verfahren beim Herstellen von Polyolefin-Flachfolien
US3159696A (en) * 1961-11-07 1964-12-01 Avisun Corp Method and apparatus for casting of shaped articles
US3340328A (en) * 1962-12-13 1967-09-05 Continental Oil Co Blends of polyethylenes having improved properties
DE1504464C3 (de) * 1964-06-02 1975-05-15 Hoechst Ag, 6000 Frankfurt Verfahren und Vorrichtung zur Herstellung von hochtransparenten Folien aus thermoplastischen Kunststoffen
JPS4615706Y1 (it) * 1967-10-24 1971-06-01
US3547891A (en) * 1969-04-02 1970-12-15 Eastman Kodak Co Heat formable polyester film
CA950617A (en) * 1969-06-04 1974-07-09 Jan B. Van Cappellen Method and apparatus for controlling "necking-in" of extruded film
GB1392519A (en) * 1972-09-07 1975-04-30 Scott Ltd H A Process and apparatus for producing or treating plastics films and sheets and materials produced thereby
DE2346543C3 (de) * 1973-09-15 1980-04-03 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Fünf-Walzen-Kalander zur Herstellung von Folien aus thermoplastischem Kunststoff
DE2425957A1 (de) * 1974-05-30 1975-12-18 Scott Ltd H & A Verfahren und vorrichtung zum herstellen gepraegter kunststoffolien und kunststoffplatten sowie derartige platten
GB1469983A (en) * 1974-08-07 1977-04-14 Ici Ltd Polymeric film production
CA1054763A (en) * 1974-10-31 1979-05-22 William J. Bonner Method and apparatus for embossing sheets
JPS5835131B2 (ja) * 1975-04-01 1983-08-01 帝人株式会社 熱可塑性樹脂フイルムの製造装置
US4115499A (en) * 1975-04-04 1978-09-19 Monsanto Research Corporation Large void-free polyethylene castings
US4182606A (en) * 1975-11-20 1980-01-08 Fiber Industries, Inc. Slit extrusion die
US4336212A (en) * 1977-10-11 1982-06-22 Asahi-Dow Limited Composition for drawn film, cold drawn film made of said composition and process for manufacture of said film
US4243619A (en) * 1978-03-31 1981-01-06 Union Carbide Corporation Process for making film from low density ethylene hydrocarbon copolymer
US4193961A (en) * 1978-04-04 1980-03-18 Kling-Tecs, Inc. Method of extruding polypropylene yarn
US4211743A (en) * 1978-05-24 1980-07-08 Nauta Roll Corporation Apparatus and method for embossing web material
US4294791A (en) * 1979-01-05 1981-10-13 Teijin Limited Process for producing thermoplastic resin film of markedly reduced thickness unevenness
US4255365A (en) * 1979-01-23 1981-03-10 E. I. Du Pont De Nemours And Company Pneumatic gauge adjustment of edge-pinned cast web
JPS5846212B2 (ja) * 1979-05-18 1983-10-14 旭化成株式会社 ポリエチレン組成物
US4339507A (en) * 1980-11-26 1982-07-13 Union Carbide Corporation Linear low density ethylene hydrocarbon copolymer containing composition for extrusion coating
US4310295A (en) * 1981-01-28 1982-01-12 E. I. Du Pont De Nemours And Company Device for uniform web pinning
US4394474A (en) * 1981-04-21 1983-07-19 The Dow Chemical Company Product and process for reducing block and increasing slip of linear low density ethylene copolymer films
US4486377A (en) * 1982-09-27 1984-12-04 Union Carbide Corporation Process for reducing draw resonance in polymeric film

Also Published As

Publication number Publication date
DE3326056C2 (it) 1993-01-28
US4668463A (en) 1987-05-26
FR2530530B1 (fr) 1987-08-28
SE8304038L (sv) 1984-01-22
IT8322158A1 (it) 1985-01-20
JPS5967016A (ja) 1984-04-16
GB2124139B (en) 1986-03-12
AR231615A1 (es) 1985-01-31
SE8304038D0 (sv) 1983-07-19
BE897338A (fr) 1984-01-20
CA1191315A (en) 1985-08-06
GB2124139A (en) 1984-02-15
BR8303887A (pt) 1984-02-28
FR2530530A1 (fr) 1984-01-27
DE3326056A1 (de) 1984-01-26
AU553258B2 (en) 1986-07-10
NL8302606A (nl) 1984-02-16
GB8319664D0 (en) 1983-08-24
AU1716083A (en) 1984-01-26
CH653952A5 (fr) 1986-01-31
NL189654B (nl) 1993-01-18
JPH0359823B2 (it) 1991-09-11
NL189654C (nl) 1993-06-16
SE461713B (sv) 1990-03-19
IT8322158A0 (it) 1983-07-20

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Effective date: 19970730