FR2196230A1 - Blown film tube mfr - with heat treatment to provide tube free of crystalline material - Google Patents

Blown film tube mfr - with heat treatment to provide tube free of crystalline material

Info

Publication number
FR2196230A1
FR2196230A1 FR7229795A FR7229795A FR2196230A1 FR 2196230 A1 FR2196230 A1 FR 2196230A1 FR 7229795 A FR7229795 A FR 7229795A FR 7229795 A FR7229795 A FR 7229795A FR 2196230 A1 FR2196230 A1 FR 2196230A1
Authority
FR
France
Prior art keywords
tube
heat treatment
crystalline material
mfr
blown 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.)
Granted
Application number
FR7229795A
Other languages
English (en)
French (fr)
Other versions
FR2196230B1 (enExample
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.)
Industries Leco Inc
Original Assignee
Leco Industries Ltd
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 to US00079754A priority Critical patent/US3754067A/en
Application filed by Leco Industries Ltd filed Critical Leco Industries Ltd
Priority to FR7229795A priority patent/FR2196230A1/fr
Priority to DE2240964A priority patent/DE2240964A1/de
Priority to GB3878272A priority patent/GB1396749A/en
Publication of FR2196230A1 publication Critical patent/FR2196230A1/fr
Application granted granted Critical
Publication of FR2196230B1 publication Critical patent/FR2196230B1/fr
Granted 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
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
    • 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
    • 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
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
FR7229795A 1970-10-12 1972-08-21 Blown film tube mfr - with heat treatment to provide tube free of crystalline material Granted FR2196230A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US00079754A US3754067A (en) 1970-10-12 1970-10-12 Blown tube production
FR7229795A FR2196230A1 (en) 1970-10-12 1972-08-21 Blown film tube mfr - with heat treatment to provide tube free of crystalline material
DE2240964A DE2240964A1 (de) 1970-10-12 1972-08-21 Extrusions-blasverfahren zum herstellen von folien oder schlaeuchen und vorrichtung zur durchfuehrung dieses verfahrens
GB3878272A GB1396749A (en) 1970-10-12 1972-08-21 Blown tube production

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7975470A 1970-10-12 1970-10-12
FR7229795A FR2196230A1 (en) 1970-10-12 1972-08-21 Blown film tube mfr - with heat treatment to provide tube free of crystalline material

Publications (2)

Publication Number Publication Date
FR2196230A1 true FR2196230A1 (en) 1974-03-15
FR2196230B1 FR2196230B1 (enExample) 1976-05-21

Family

ID=26217285

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229795A Granted FR2196230A1 (en) 1970-10-12 1972-08-21 Blown film tube mfr - with heat treatment to provide tube free of crystalline material

Country Status (1)

Country Link
FR (1) FR2196230A1 (enExample)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2196230B1 (enExample) 1976-05-21

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Legal Events

Date Code Title Description
ST Notification of lapse