GB1223486A - Method of and apparatus for stretching plastics films - Google Patents

Method of and apparatus for stretching plastics films

Info

Publication number
GB1223486A
GB1223486A GB1650068A GB1650068A GB1223486A GB 1223486 A GB1223486 A GB 1223486A GB 1650068 A GB1650068 A GB 1650068A GB 1650068 A GB1650068 A GB 1650068A GB 1223486 A GB1223486 A GB 1223486A
Authority
GB
United Kingdom
Prior art keywords
chains
belts
stretching
separate
feed point
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
GB1650068A
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.)
Veba Oel AG
Original Assignee
Veba Oel 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 Veba Oel AG filed Critical Veba Oel AG
Publication of GB1223486A publication Critical patent/GB1223486A/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
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • B29C55/285—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation by using internal mechanical means
    • 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
    • B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/001—Tubular films, sleeves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
GB1650068A 1967-04-05 1968-04-05 Method of and apparatus for stretching plastics films Expired GB1223486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESC040496 1967-04-05

Publications (1)

Publication Number Publication Date
GB1223486A true GB1223486A (en) 1971-02-24

Family

ID=7435702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1650068A Expired GB1223486A (en) 1967-04-05 1968-04-05 Method of and apparatus for stretching plastics films

Country Status (7)

Country Link
AT (1) AT293005B (cg-RX-API-DMAC7.html)
BE (1) BE713339A (cg-RX-API-DMAC7.html)
DE (1) DE1729029A1 (cg-RX-API-DMAC7.html)
FR (1) FR1561624A (cg-RX-API-DMAC7.html)
GB (1) GB1223486A (cg-RX-API-DMAC7.html)
LU (1) LU55822A1 (cg-RX-API-DMAC7.html)
NL (1) NL6804873A (cg-RX-API-DMAC7.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027735A1 (en) * 1979-10-19 1981-04-29 Nippon Petrochemicals Company Limited Method and apparatus for manufacturing stretched sheets from a tubular film
EP0061931A1 (en) * 1981-04-01 1982-10-06 Nippon Petrochemicals Co., Ltd. Method and apparatus for stretching thermoplastic polymer films

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711751A (en) * 1985-01-11 1987-12-08 Thermo Plastic Research Co., Ltd. Process and apparatus for stretching tubular extruded plastic material
CN114589902B (zh) * 2022-03-18 2024-08-16 北京祥润鑫悦科技有限公司 一种多口模具挤出分切收卷装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027735A1 (en) * 1979-10-19 1981-04-29 Nippon Petrochemicals Company Limited Method and apparatus for manufacturing stretched sheets from a tubular film
EP0061931A1 (en) * 1981-04-01 1982-10-06 Nippon Petrochemicals Co., Ltd. Method and apparatus for stretching thermoplastic polymer films
US4434128A (en) 1981-04-01 1984-02-28 Nippon Petrochemicals Co., Ltd Method and apparatus for stretching thermoplastic polymer films

Also Published As

Publication number Publication date
DE1729029A1 (de) 1971-06-03
BE713339A (cg-RX-API-DMAC7.html) 1968-08-16
NL6804873A (cg-RX-API-DMAC7.html) 1968-10-07
AT293005B (de) 1971-09-27
LU55822A1 (cg-RX-API-DMAC7.html) 1968-06-28
FR1561624A (cg-RX-API-DMAC7.html) 1969-03-28

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