GB1446138A - Method and apparatus for manufacture of tubular biaxially stretched film - Google Patents

Method and apparatus for manufacture of tubular biaxially stretched film

Info

Publication number
GB1446138A
GB1446138A GB1702374A GB1702374A GB1446138A GB 1446138 A GB1446138 A GB 1446138A GB 1702374 A GB1702374 A GB 1702374A GB 1702374 A GB1702374 A GB 1702374A GB 1446138 A GB1446138 A GB 1446138A
Authority
GB
United Kingdom
Prior art keywords
film
rollers
barrel
heaters
gas
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
GB1702374A
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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
Priority claimed from US356782A external-priority patent/US3904342A/en
Application filed by Showa Denko KK filed Critical Showa Denko KK
Publication of GB1446138A publication Critical patent/GB1446138A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
GB1702374A 1973-05-03 1974-04-18 Method and apparatus for manufacture of tubular biaxially stretched film Expired GB1446138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US356782A US3904342A (en) 1970-04-03 1973-05-03 Apparatus for manufacturing of tubular biaxially stretched film having improved thickness uniformity

Publications (1)

Publication Number Publication Date
GB1446138A true GB1446138A (en) 1976-08-18

Family

ID=23402934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1702374A Expired GB1446138A (en) 1973-05-03 1974-04-18 Method and apparatus for manufacture of tubular biaxially stretched film

Country Status (5)

Country Link
BE (1) BE814553A (enrdf_load_stackoverflow)
DE (1) DE2420286A1 (enrdf_load_stackoverflow)
FR (1) FR2227945B1 (enrdf_load_stackoverflow)
GB (1) GB1446138A (enrdf_load_stackoverflow)
IT (1) IT1011353B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201371A (en) * 1987-01-02 1988-09-01 Windmoeller & Hoelscher Apparatus for producing tubular thermoplastic biaxially oriented film
CN103009620A (zh) * 2011-09-20 2013-04-03 上海华义化工科技有限公司 管状薄膜坯管的加热方法及加热装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3802146C1 (enrdf_load_stackoverflow) * 1988-01-26 1989-02-23 Battenfeld Extrusionstechnik Gmbh, 4970 Bad Oeynhausen, De
AU610366B2 (en) * 1988-03-31 1991-05-16 Idemitsu Petrochemical Co., Ltd. Method of and apparatus for manufacturing biaxially oriented film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201371A (en) * 1987-01-02 1988-09-01 Windmoeller & Hoelscher Apparatus for producing tubular thermoplastic biaxially oriented film
CN103009620A (zh) * 2011-09-20 2013-04-03 上海华义化工科技有限公司 管状薄膜坯管的加热方法及加热装置

Also Published As

Publication number Publication date
BE814553A (fr) 1974-09-02
DE2420286A1 (de) 1974-11-14
FR2227945A1 (enrdf_load_stackoverflow) 1974-11-29
IT1011353B (it) 1977-01-20
FR2227945B1 (enrdf_load_stackoverflow) 1977-10-28

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Legal Events

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