JPS5640528A - Foamed polystylene sheet and manufacture thereof - Google Patents

Foamed polystylene sheet and manufacture thereof

Info

Publication number
JPS5640528A
JPS5640528A JP11575879A JP11575879A JPS5640528A JP S5640528 A JPS5640528 A JP S5640528A JP 11575879 A JP11575879 A JP 11575879A JP 11575879 A JP11575879 A JP 11575879A JP S5640528 A JPS5640528 A JP S5640528A
Authority
JP
Japan
Prior art keywords
sheet
die
cylinder
polystylene
foamed
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
JP11575879A
Other languages
Japanese (ja)
Inventor
Toshiyuki Nakakura
Sumitaka Kudo
Kazuhiko Suzuki
Hiroshi Ezawa
Misao Masuda
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP11575879A priority Critical patent/JPS5640528A/en
Publication of JPS5640528A publication Critical patent/JPS5640528A/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain the foamed polystylene sheet having a thin thickness, a high structural strength which is useful for a food packaging unit by a method wherein a polymer and an organic compound having a low boiling point are extruded from an annular slit to form a cylindrical body, a diameter of the cylindrical film is expanded with a specified method, nonfoamed layer is formed and then cut. CONSTITUTION:(B) 0.01-0.15mol of organic compound of low boiling point (Ex: butane etc.) is added in respect to (A) 100g of polystylene, they are melted and mixed in the extruding machine, then extruded from the annular slit 2 of the die 1 arranged at the leading end of the extruding machine to make a cylinder 7 and then foamed. Then, this is fixed just after the annular slit 2 so as not to be contacted with the die 1, thermal medium is passed through a circulation passage 4, contacted with a cooling ring 3 heated to -10 deg.C-+90 deg.C with a moving speed of 1- 50m/min, and air is blown into a cavity 8 enclosed by the die 1, the cooling drum 6 and the cylinder 7 from an air blow pipe 5, a diameter of the cylinder 7 is bulged out to form nonfoamed layer having a thickness of 2-10% thereof in an intire surface of the sheet.
JP11575879A 1979-09-11 1979-09-11 Foamed polystylene sheet and manufacture thereof Pending JPS5640528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11575879A JPS5640528A (en) 1979-09-11 1979-09-11 Foamed polystylene sheet and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11575879A JPS5640528A (en) 1979-09-11 1979-09-11 Foamed polystylene sheet and manufacture thereof

Publications (1)

Publication Number Publication Date
JPS5640528A true JPS5640528A (en) 1981-04-16

Family

ID=14670316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11575879A Pending JPS5640528A (en) 1979-09-11 1979-09-11 Foamed polystylene sheet and manufacture thereof

Country Status (1)

Country Link
JP (1) JPS5640528A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5867422A (en) * 1981-10-19 1983-04-22 Sekisui Plastics Co Ltd Extrusion expanding polystyrene resin sheet
JPS58101026A (en) * 1981-12-12 1983-06-16 Sekisui Plastics Co Ltd Continuous manufacture of polystyrene foamed and molded item
JPS58196239A (en) * 1982-05-11 1983-11-15 Sekisui Plastics Co Ltd Polystyrene foam sheet suitable for use in fabrication
JPS6337916A (en) * 1986-08-04 1988-02-18 Dow Kako Kk Manufacture of styrene-based resin foam
JPS63122515A (en) * 1986-11-11 1988-05-26 Sekisui Plastics Co Ltd Manufacture of styrene resin foamed sheet
JPH03157432A (en) * 1989-11-15 1991-07-05 Sekisui Plastics Co Ltd Production of heat-resistant foam
JPH0542977B2 (en) * 1987-06-16 1993-06-30 Kanegafuchi Chemical Ind
CN111511521A (en) * 2018-12-27 2020-08-07 株式会社Huvis Cooling device for polyethylene glycol terephthalate foaming sheet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022874A (en) * 1973-06-04 1975-03-11
JPS5280362A (en) * 1975-12-27 1977-07-06 Mitsui Toatsu Chemicals Cooling ring for manufacture of foam sheet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022874A (en) * 1973-06-04 1975-03-11
JPS5280362A (en) * 1975-12-27 1977-07-06 Mitsui Toatsu Chemicals Cooling ring for manufacture of foam sheet

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5867422A (en) * 1981-10-19 1983-04-22 Sekisui Plastics Co Ltd Extrusion expanding polystyrene resin sheet
JPS6132129B2 (en) * 1981-10-19 1986-07-24 Sekisui Plastics
JPS58101026A (en) * 1981-12-12 1983-06-16 Sekisui Plastics Co Ltd Continuous manufacture of polystyrene foamed and molded item
JPH0160407B2 (en) * 1981-12-12 1989-12-22 Sekisui Plastics
JPS58196239A (en) * 1982-05-11 1983-11-15 Sekisui Plastics Co Ltd Polystyrene foam sheet suitable for use in fabrication
JPS6338060B2 (en) * 1982-05-11 1988-07-28 Sekisui Plastics
JPS6337916A (en) * 1986-08-04 1988-02-18 Dow Kako Kk Manufacture of styrene-based resin foam
JPS63122515A (en) * 1986-11-11 1988-05-26 Sekisui Plastics Co Ltd Manufacture of styrene resin foamed sheet
JPH0542977B2 (en) * 1987-06-16 1993-06-30 Kanegafuchi Chemical Ind
JPH03157432A (en) * 1989-11-15 1991-07-05 Sekisui Plastics Co Ltd Production of heat-resistant foam
JPH0581612B2 (en) * 1989-11-15 1993-11-15 Sekisui Plastics
CN111511521A (en) * 2018-12-27 2020-08-07 株式会社Huvis Cooling device for polyethylene glycol terephthalate foaming sheet

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