GB1437980A - Method and apparatus for continuously varying the cross-section of thermoplastic film webs - Google Patents

Method and apparatus for continuously varying the cross-section of thermoplastic film webs

Info

Publication number
GB1437980A
GB1437980A GB4018573A GB4018573A GB1437980A GB 1437980 A GB1437980 A GB 1437980A GB 4018573 A GB4018573 A GB 4018573A GB 4018573 A GB4018573 A GB 4018573A GB 1437980 A GB1437980 A GB 1437980A
Authority
GB
United Kingdom
Prior art keywords
web
stretching
cross
section
heating
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
GB4018573A
Other languages
English (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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of GB1437980A publication Critical patent/GB1437980A/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
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C2037/90—Measuring, controlling or regulating
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
GB4018573A 1972-08-28 1973-08-24 Method and apparatus for continuously varying the cross-section of thermoplastic film webs Expired GB1437980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722242284 DE2242284A1 (de) 1972-08-28 1972-08-28 Verfahren und vorrichtung zur kontinuierlichen dickenprofilaenderung von thermoplastischen folienbahnen

Publications (1)

Publication Number Publication Date
GB1437980A true GB1437980A (en) 1976-06-03

Family

ID=5854781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4018573A Expired GB1437980A (en) 1972-08-28 1973-08-24 Method and apparatus for continuously varying the cross-section of thermoplastic film webs

Country Status (9)

Country Link
JP (1) JPS4953963A (enExample)
BE (1) BE804122A (enExample)
DE (1) DE2242284A1 (enExample)
FR (1) FR2197709B1 (enExample)
GB (1) GB1437980A (enExample)
IE (1) IE38129B1 (enExample)
IT (1) IT990325B (enExample)
LU (1) LU68312A1 (enExample)
NL (1) NL7311375A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795995A1 (fr) * 1999-07-08 2001-01-12 Plastiques De La Deome Procede et dispositif pour la fabrication d'un film adhesif pour la palettisation et film obtenu

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4875070B2 (ja) * 2005-06-01 2012-02-15 スリーエム イノベイティブ プロパティズ カンパニー 再配置可能なヒーターを使用するクロスウェブ熱分配システムおよび方法
EP3635452B1 (en) * 2017-05-17 2025-11-05 Everix, Inc. A method of making an optical filter film

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1429227A (fr) * 1965-04-13 1966-02-18 Du Pont Procédé pour améliorer l'aptitude à l'enroulement sous forme de rouleaux des pellicules organiques polymères

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795995A1 (fr) * 1999-07-08 2001-01-12 Plastiques De La Deome Procede et dispositif pour la fabrication d'un film adhesif pour la palettisation et film obtenu

Also Published As

Publication number Publication date
NL7311375A (enExample) 1974-03-04
DE2242284A1 (de) 1974-03-21
IT990325B (it) 1975-06-20
IE38129L (en) 1974-02-28
LU68312A1 (enExample) 1975-05-21
FR2197709B1 (enExample) 1978-05-26
JPS4953963A (enExample) 1974-05-25
BE804122A (fr) 1974-02-28
FR2197709A1 (enExample) 1974-03-29
IE38129B1 (en) 1978-01-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee