CA921670A - Process for producing polyamide films having improved anti-blocking characteristics - Google Patents

Process for producing polyamide films having improved anti-blocking characteristics

Info

Publication number
CA921670A
CA921670A CA083171A CA83171A CA921670A CA 921670 A CA921670 A CA 921670A CA 083171 A CA083171 A CA 083171A CA 83171 A CA83171 A CA 83171A CA 921670 A CA921670 A CA 921670A
Authority
CA
Canada
Prior art keywords
improved anti
blocking characteristics
polyamide films
producing polyamide
producing
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
CA083171A
Inventor
Kuga Mutsuo
Ohashi Shinkichi
Mashimo Takeshi
Banno Shigeki
Kayama Hiroshi
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.)
Unitika Ltd
Original Assignee
Unitika 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
Application filed by Unitika Ltd filed Critical Unitika Ltd
Application granted granted Critical
Publication of CA921670A publication Critical patent/CA921670A/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
    • 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
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • 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
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/9175—Cooling of flat articles, e.g. using specially adapted supporting means by interposing a fluid layer between the supporting means and the flat article

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
CA083171A 1969-05-20 1970-05-20 Process for producing polyamide films having improved anti-blocking characteristics Expired CA921670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44038960A JPS517708B1 (en) 1969-05-20 1969-05-20

Publications (1)

Publication Number Publication Date
CA921670A true CA921670A (en) 1973-02-27

Family

ID=12539731

Family Applications (1)

Application Number Title Priority Date Filing Date
CA083171A Expired CA921670A (en) 1969-05-20 1970-05-20 Process for producing polyamide films having improved anti-blocking characteristics

Country Status (5)

Country Link
JP (1) JPS517708B1 (en)
CA (1) CA921670A (en)
DE (1) DE2024177A1 (en)
FR (1) FR2048476A5 (en)
GB (1) GB1295989A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51136752A (en) * 1975-05-22 1976-11-26 Unitika Ltd Method of elongation of polyyepsilonn caproamide films
FR2505252A1 (en) * 1981-05-06 1982-11-12 Darlet Jean Pierre Steam purging chill roll surface - receiving extruded thermoplastic sheet to ensure good sheet-roll contact and adhesion
JP4641673B2 (en) * 2001-07-06 2011-03-02 ユニチカ株式会社 Method for producing polyamide film

Also Published As

Publication number Publication date
FR2048476A5 (en) 1971-03-19
JPS517708B1 (en) 1976-03-10
DE2024177A1 (en) 1970-11-26
GB1295989A (en) 1972-11-08

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