GB2289432B - A film blowing head for producing tubular film webs of a thermoplastic synthetic material - Google Patents

A film blowing head for producing tubular film webs of a thermoplastic synthetic material

Info

Publication number
GB2289432B
GB2289432B GB9509458A GB9509458A GB2289432B GB 2289432 B GB2289432 B GB 2289432B GB 9509458 A GB9509458 A GB 9509458A GB 9509458 A GB9509458 A GB 9509458A GB 2289432 B GB2289432 B GB 2289432B
Authority
GB
United Kingdom
Prior art keywords
synthetic material
thermoplastic synthetic
blowing head
producing tubular
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 - Fee Related
Application number
GB9509458A
Other versions
GB9509458D0 (en
GB2289432A (en
Inventor
Klaus-Peter Vos
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 DE4428212A external-priority patent/DE4428212C2/en
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of GB9509458D0 publication Critical patent/GB9509458D0/en
Publication of GB2289432A publication Critical patent/GB2289432A/en
Application granted granted Critical
Publication of GB2289432B publication Critical patent/GB2289432B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
GB9509458A 1994-05-18 1995-05-10 A film blowing head for producing tubular film webs of a thermoplastic synthetic material Expired - Fee Related GB2289432B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4417416 1994-05-18
DE4428212A DE4428212C2 (en) 1994-05-18 1994-08-09 Foil blowing head for the production of tubular foils from thermoplastic

Publications (3)

Publication Number Publication Date
GB9509458D0 GB9509458D0 (en) 1995-07-05
GB2289432A GB2289432A (en) 1995-11-22
GB2289432B true GB2289432B (en) 1998-06-17

Family

ID=25936681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9509458A Expired - Fee Related GB2289432B (en) 1994-05-18 1995-05-10 A film blowing head for producing tubular film webs of a thermoplastic synthetic material

Country Status (3)

Country Link
FR (1) FR2720027B1 (en)
GB (1) GB2289432B (en)
IT (1) IT1281282B1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396749A (en) * 1970-10-12 1975-06-04 Leco Industries Ltd Blown tube production
US4174932A (en) * 1977-02-09 1979-11-20 Mobil Oil Corporation Apparatus for extruding tubular thermoplastic film
GB1592580A (en) * 1976-12-27 1981-07-08 Union Carbide Corp Apparatus and method for producing films
US4834924A (en) * 1988-01-25 1989-05-30 Mobil Oil Corporation Extrusion apparatus for tubular thermoplastic films including two (tandem) spaced air rings for controlling cooling rate and production speeds
DE4207439A1 (en) * 1991-12-12 1993-06-17 Windmoeller & Hoelscher Blowing head for film tubing prodn. - has outer air cooling ring divided at regular intervals round circumference into sectors heated individually as required
GB2286555A (en) * 1994-02-21 1995-08-23 Windmoeller & Hoelscher Cooling a tubular thermoplastic web extruded from a film blowing head

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63256423A (en) * 1987-04-13 1988-10-24 Kao Corp Forming machine for inflation film
DD289243A5 (en) * 1989-11-27 1991-04-25 Veb Orbitplast,De ARRANGEMENT FOR DESIGNING THE TEMPERATURE PROFILE FOR THE VOLUME OF THE FILM HOSE
US5288219A (en) * 1991-03-25 1994-02-22 Battenfeld Gloucester Engineering Co., Inc. Air ring for controlling blown film thickness
DE4218997C1 (en) * 1992-06-10 1994-01-20 Reifenhaeuser Masch Appts. for prodn. of plastic film from extrude blown tubing - produces close tolerances by dividing cooling system into segments of circumference of blowing nozzle each with finely controlled valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396749A (en) * 1970-10-12 1975-06-04 Leco Industries Ltd Blown tube production
GB1592580A (en) * 1976-12-27 1981-07-08 Union Carbide Corp Apparatus and method for producing films
US4174932A (en) * 1977-02-09 1979-11-20 Mobil Oil Corporation Apparatus for extruding tubular thermoplastic film
US4834924A (en) * 1988-01-25 1989-05-30 Mobil Oil Corporation Extrusion apparatus for tubular thermoplastic films including two (tandem) spaced air rings for controlling cooling rate and production speeds
DE4207439A1 (en) * 1991-12-12 1993-06-17 Windmoeller & Hoelscher Blowing head for film tubing prodn. - has outer air cooling ring divided at regular intervals round circumference into sectors heated individually as required
GB2286555A (en) * 1994-02-21 1995-08-23 Windmoeller & Hoelscher Cooling a tubular thermoplastic web extruded from a film blowing head

Also Published As

Publication number Publication date
IT1281282B1 (en) 1998-02-17
GB9509458D0 (en) 1995-07-05
FR2720027B1 (en) 1997-10-24
ITBZ950033A1 (en) 1996-11-17
FR2720027A1 (en) 1995-11-24
GB2289432A (en) 1995-11-22
ITBZ950033A0 (en) 1995-05-17

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Legal Events

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

Effective date: 20010510