JPS57173134A - Manufacture of thin reinforced plastic film - Google Patents

Manufacture of thin reinforced plastic film

Info

Publication number
JPS57173134A
JPS57173134A JP56058530A JP5853081A JPS57173134A JP S57173134 A JPS57173134 A JP S57173134A JP 56058530 A JP56058530 A JP 56058530A JP 5853081 A JP5853081 A JP 5853081A JP S57173134 A JPS57173134 A JP S57173134A
Authority
JP
Japan
Prior art keywords
die
film
manufacture
plastic film
reinforced plastic
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.)
Pending
Application number
JP56058530A
Other languages
Japanese (ja)
Inventor
Shogo Nagao
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56058530A priority Critical patent/JPS57173134A/en
Publication of JPS57173134A publication Critical patent/JPS57173134A/en
Pending 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To reticulate the molecular orientation of the film, and to manufacture the thin film having high tear strength by mutually turning the inside die and outside die of a die with an annular extruding slit in the opposite direction while using a sliding surface as a boundary. CONSTITUTION:Raw material plastic is supplied from the hopper 2 of an extruding machine 1, and fed to the die 4 while being transported by means of a screw 3. The die 4 consists of the inside die 10 with the annular extruding slit 9 and the outside die 12 with the annular extruding die 11, and both are turned mutually in the opposite direction while using the sliding surface 13 as the boundary when manufacturing the film. An air hole 14 is formed at the central section of the inside die 10. Melted plastic extruded is cooled by means of a cooler 5 and changed into a cylindrical film, and wound by means of a winder 8.
JP56058530A 1981-04-20 1981-04-20 Manufacture of thin reinforced plastic film Pending JPS57173134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56058530A JPS57173134A (en) 1981-04-20 1981-04-20 Manufacture of thin reinforced plastic film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56058530A JPS57173134A (en) 1981-04-20 1981-04-20 Manufacture of thin reinforced plastic film

Publications (1)

Publication Number Publication Date
JPS57173134A true JPS57173134A (en) 1982-10-25

Family

ID=13086980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56058530A Pending JPS57173134A (en) 1981-04-20 1981-04-20 Manufacture of thin reinforced plastic film

Country Status (1)

Country Link
JP (1) JPS57173134A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745878A (en) * 1985-11-15 1988-05-24 Sanyo Electric Co., Ltd. Vapor masking device
US7125589B1 (en) * 2002-04-09 2006-10-24 Chisso Corporation Liquid crystal compound having hydrogen as a terminal group, composition comprising the compound, and liquid crystal display element comprising the composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745878A (en) * 1985-11-15 1988-05-24 Sanyo Electric Co., Ltd. Vapor masking device
US7125589B1 (en) * 2002-04-09 2006-10-24 Chisso Corporation Liquid crystal compound having hydrogen as a terminal group, composition comprising the compound, and liquid crystal display element comprising the composition

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