JPS54152070A - Production of board - Google Patents

Production of board

Info

Publication number
JPS54152070A
JPS54152070A JP6147378A JP6147378A JPS54152070A JP S54152070 A JPS54152070 A JP S54152070A JP 6147378 A JP6147378 A JP 6147378A JP 6147378 A JP6147378 A JP 6147378A JP S54152070 A JPS54152070 A JP S54152070A
Authority
JP
Japan
Prior art keywords
sheet
mold
board
foamed
foaming
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
JP6147378A
Other languages
Japanese (ja)
Other versions
JPS6050134B2 (en
Inventor
Kazuya Senuma
Kenji Yamaguchi
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry Co 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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP53061473A priority Critical patent/JPS6050134B2/en
Publication of JPS54152070A publication Critical patent/JPS54152070A/en
Publication of JPS6050134B2 publication Critical patent/JPS6050134B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE: A thermoplastic and foaming resin sheet is laminated with a different material on the top surface and foamed in a tightly closed mold under specific conditions, thus producing highly foamed boards with smooth surfaces.
CONSTITUTION: A melt extruded sheet of foaming and thermoplastic resin, preferably styrene foaming resin, is laminated with another different material as highimpact polystyrene on the top surface to form a composite foaming sheet or plate. After the composite sheet is softened by heating, it is introduced into a mold that has the cavity thicker than the thickness of the board, preferably more than 1.5 times the thickness of the board, and can be tightly closed at the periphery using a clamp. Then, the inside of the mold is kept vacuum and the composite sheet is foamed along the cavity of the mold, thus producing he objective board foamed 20W40 times the original volume.
COPYRIGHT: (C)1979,JPO&Japio
JP53061473A 1978-05-22 1978-05-22 Thick plate manufacturing method Expired JPS6050134B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53061473A JPS6050134B2 (en) 1978-05-22 1978-05-22 Thick plate manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53061473A JPS6050134B2 (en) 1978-05-22 1978-05-22 Thick plate manufacturing method

Publications (2)

Publication Number Publication Date
JPS54152070A true JPS54152070A (en) 1979-11-29
JPS6050134B2 JPS6050134B2 (en) 1985-11-07

Family

ID=13172053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53061473A Expired JPS6050134B2 (en) 1978-05-22 1978-05-22 Thick plate manufacturing method

Country Status (1)

Country Link
JP (1) JPS6050134B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003106150A1 (en) * 2002-06-12 2003-12-24 Royal Sovereign Inc. A foam board pouch for laminating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003106150A1 (en) * 2002-06-12 2003-12-24 Royal Sovereign Inc. A foam board pouch for laminating

Also Published As

Publication number Publication date
JPS6050134B2 (en) 1985-11-07

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