CA950617A - Method and apparatus for controlling "necking-in" of extruded film - Google Patents

Method and apparatus for controlling "necking-in" of extruded film

Info

Publication number
CA950617A
CA950617A CA084,444,A CA84444A CA950617A CA 950617 A CA950617 A CA 950617A CA 84444 A CA84444 A CA 84444A CA 950617 A CA950617 A CA 950617A
Authority
CA
Canada
Prior art keywords
necking
controlling
extruded film
extruded
film
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.)
Expired
Application number
CA084,444,A
Inventor
Jan B. Van Cappellen
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Application granted granted Critical
Publication of CA950617A publication Critical patent/CA950617A/en
Expired legal-status Critical Current

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
    • 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
    • B29C48/03—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
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
CA084,444,A 1969-06-04 1970-06-02 Method and apparatus for controlling "necking-in" of extruded film Expired CA950617A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2831569 1969-06-04
GB4404269 1969-09-05

Publications (1)

Publication Number Publication Date
CA950617A true CA950617A (en) 1974-07-09

Family

ID=26259321

Family Applications (1)

Application Number Title Priority Date Filing Date
CA084,444,A Expired CA950617A (en) 1969-06-04 1970-06-02 Method and apparatus for controlling "necking-in" of extruded film

Country Status (8)

Country Link
US (1) US4066729A (en)
BE (1) BE751428A (en)
CA (1) CA950617A (en)
CH (1) CH520558A (en)
DE (1) DE2027492A1 (en)
FR (1) FR2049895A5 (en)
LU (1) LU61055A1 (en)
NL (1) NL7008143A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294791A (en) * 1979-01-05 1981-10-13 Teijin Limited Process for producing thermoplastic resin film of markedly reduced thickness unevenness
FR2516442A1 (en) * 1981-11-16 1983-05-20 Solvay METHOD AND APPARATUS FOR EXTRUSION OF POLYMER FILMS OF HALOGENATED OLEFINS, USE AS PIEZOELECTRIC FILMS AFTER POLARIZATION PROCESSING
US4668463A (en) * 1982-07-21 1987-05-26 Clopay Corporation Method of making linear low density polyethylene film
US4486377A (en) * 1982-09-27 1984-12-04 Union Carbide Corporation Process for reducing draw resonance in polymeric film
JPS59140860A (en) * 1983-01-28 1984-08-13 Nippon Suisan Kaisha Ltd Preparation of dried fin-like food and equipment therefor
EP0172924B1 (en) * 1984-08-14 1989-03-15 Mitsubishi Jukogyo Kabushiki Kaisha Sheet forming apparatus
US4608221A (en) * 1984-12-28 1986-08-26 Union Carbide Corporation Process for reducing draw resonance in polymeric film
US4783304A (en) * 1987-06-17 1988-11-08 E. I. Du Pont De Nemours And Company Vacuum pinning process
DE3813085A1 (en) * 1988-04-19 1989-11-02 Elastonwerk Bayern Gmbh METHOD FOR PRODUCING FILMS FROM VERY LOW DENSITY FROM LINEAR POLYETHYLENE
DE3916407A1 (en) * 1989-05-19 1990-11-22 Hans Hench Spinning stretching and injection of thermoplastic melt - has good properties in longitudinal direction achieved by spinning stretching and forming of extruded melt at two different stages
WO1992019440A1 (en) * 1991-05-01 1992-11-12 Danforth Biomedical, Inc. Improved balloon catheter of low molecular weight pet
US5256359A (en) * 1992-05-06 1993-10-26 E. I. Du Pont De Nemours And Company Process for manufacturing cast amorphous film
DE4480681C2 (en) 1994-02-17 2001-09-27 Scimed Life Systems Inc Process for the production of catheter balloons and oriented balloons produced thereafter
ATE198280T1 (en) * 1995-11-08 2001-01-15 Scimed Life Systems Inc METHOD FOR MAKING BALLOONS BY COLD DRAWING/NECKING
DE19622082C1 (en) * 1996-05-31 1997-11-20 Brueckner Maschbau Process for the preparation of a filler-containing printable polymer film
FR2826605A1 (en) * 2001-07-02 2003-01-03 Usinor Manufacture of strip coated with polymer film by extruding molten polymer and cooling edges before applying to strip
JP5451652B2 (en) * 2008-07-03 2014-03-26 東レバッテリーセパレータフィルム株式会社 COOLING ROLL ASSEMBLY FOR PRODUCING MICROPOROUS MEMBRANE AND METHOD FOR PRODUCING MICROPOROUS MEMBRANE
US9492332B2 (en) * 2014-05-13 2016-11-15 Clopay Plastic Products Company, Inc. Breathable and microporous thin thermoplastic film
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 (en) * 2016-04-07 2017-10-07 Colines Spa SYSTEM AND METHOD FOR REDUCING IRONING RESONANCE IN PLANTS FOR THE PRODUCTION OF PLASTIC FILMS
CA3018516A1 (en) 2017-09-26 2019-03-26 Davis-Standard, Llc Casting apparatus for manufacturing polymer film
US11584111B2 (en) 2018-11-05 2023-02-21 Windmoeller & Hoelscher Kg Breathable thermoplastic film with reduced shrinkage

Family Cites Families (8)

* 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
US2364435A (en) * 1941-11-04 1944-12-05 Du Pont Manufacture of films
US2799896A (en) * 1954-04-20 1957-07-23 Celanese Corp Sheet extrusion apparatus
US2936492A (en) * 1956-10-04 1960-05-17 Du Pont Method of casting crystalline polymer film
US3175026A (en) * 1958-03-21 1965-03-23 Nat Distillers Chem Corp Extrusion method and apparatus
US3194866A (en) * 1961-12-22 1965-07-13 Eastman Kodak Co Method of forming a sheet
US3397263A (en) * 1964-02-24 1968-08-13 Gulf Oil Corp Process for preparing smooth nylon film
US3471606A (en) * 1964-03-18 1969-10-07 Mobil Oil Corp Producing thermoplastic films

Also Published As

Publication number Publication date
BE751428A (en) 1970-12-03
DE2027492A1 (en) 1971-08-19
US4066729A (en) 1978-01-03
CH520558A (en) 1972-03-31
FR2049895A5 (en) 1971-03-26
LU61055A1 (en) 1970-08-04
NL7008143A (en) 1970-11-25

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