CA997515A - Method of and apparatus for stretching plastic sheet material - Google Patents

Method of and apparatus for stretching plastic sheet material

Info

Publication number
CA997515A
CA997515A CA157,349A CA157349A CA997515A CA 997515 A CA997515 A CA 997515A CA 157349 A CA157349 A CA 157349A CA 997515 A CA997515 A CA 997515A
Authority
CA
Canada
Prior art keywords
sheet material
plastic sheet
stretching plastic
stretching
sheet
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
CA157,349A
Other languages
English (en)
Other versions
CA157349S (en
Inventor
Anton J. Mayr
Sidney J. Baum
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.)
Foster Grant Co Inc
Original Assignee
Foster Grant Co Inc
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 Foster Grant Co Inc filed Critical Foster Grant Co Inc
Application granted granted Critical
Publication of CA997515A publication Critical patent/CA997515A/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
    • 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
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
CA157,349A 1971-11-23 1972-11-21 Method of and apparatus for stretching plastic sheet material Expired CA997515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20133771A 1971-11-23 1971-11-23

Publications (1)

Publication Number Publication Date
CA997515A true CA997515A (en) 1976-09-28

Family

ID=22745431

Family Applications (1)

Application Number Title Priority Date Filing Date
CA157,349A Expired CA997515A (en) 1971-11-23 1972-11-21 Method of and apparatus for stretching plastic sheet material

Country Status (5)

Country Link
US (1) US3744106A (de)
JP (1) JPS5240342B2 (de)
CA (1) CA997515A (de)
DE (1) DE2257089C3 (de)
IT (1) IT974843B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055612A (en) * 1972-02-15 1977-10-25 Peter Zimmer Treating of travelling webs
US3920372A (en) * 1974-11-14 1975-11-18 Katagi Goseikagaku Kk Apparatus for manufacturing untwisted synthetic resin string
JPS52134676A (en) * 1976-05-06 1977-11-11 Komuroseikichi Shiyouten Kk Method for elongation of tape yarn of synthetic resin
US4408974A (en) * 1982-01-20 1983-10-11 Comerio Ercole, S.P.A. Mobile film stretching unit
DE3564089D1 (en) * 1984-11-06 1988-09-08 Toray Industries Method for holding a moving film
JPH11105128A (ja) * 1997-09-30 1999-04-20 Asahi Optical Co Ltd 多孔質フィルムの製造方法
CA2249504A1 (en) * 1997-10-09 1999-04-09 Asahi Kogaku Kogyo Kabushiki Kaisha Producing apparatus of film with through-holes
DE102004004084A1 (de) * 2004-01-27 2005-08-18 Treofan Germany Gmbh & Co.Kg Verfahren und Vorrichtung zum Längsstrecken einer Folienbahn
WO2006077920A1 (ja) * 2005-01-20 2006-07-27 Nitto Denko Corporation 偏光板の製造方法、偏光板、光学フィルムおよびそれらを用いた画像表示装置
EP2719518B1 (de) 2011-09-02 2016-06-08 Rkw Se Verfahren zum Recken einer Folienbahn
US9969142B2 (en) * 2011-11-10 2018-05-15 Packsize Llc Converting machine
US10850469B2 (en) 2016-06-16 2020-12-01 Packsize Llc Box forming machine
US11305903B2 (en) 2018-04-05 2022-04-19 Avercon BVBA Box template folding process and mechanisms
US11247427B2 (en) 2018-04-05 2022-02-15 Avercon BVBA Packaging machine infeed, separation, and creasing mechanisms
DE112019003075T5 (de) 2018-06-21 2021-03-25 Packsize Llc Verpackungsvorrichtung und systeme

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA866674A (en) * 1971-03-23 Huff Karl Thermoplastics
US2177661A (en) * 1938-08-13 1939-10-31 Eastman Kodak Co Method and apparatus for improving thermoplastic sheeting
US2547763A (en) * 1947-11-12 1951-04-03 Polaroid Corp Method of stretching continuous materials such as sheeting and the like
US2854697A (en) * 1954-12-14 1958-10-07 Polaroid Corp Method of stretching plastic sheet material
DE1221786B (de) * 1961-12-07 1966-07-28 Brueckner Trocknerbau Inh Gern Vorrichtung zum Recken einer Folienbahn aus thermoplastischem Kunststoff in Laengsrichtung
US3208100A (en) * 1962-10-15 1965-09-28 Bevis Ind Inc Longitudinal web stretching machine
US3243844A (en) * 1964-04-28 1966-04-05 Marshall And Williams Corp Longitudinal web stretching machine

Also Published As

Publication number Publication date
IT974843B (it) 1974-07-10
JPS5240342B2 (de) 1977-10-12
JPS4875675A (de) 1973-10-12
DE2257089A1 (de) 1973-05-24
US3744106A (en) 1973-07-10
DE2257089B2 (de) 1978-05-03
DE2257089C3 (de) 1979-01-11

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