JPS54158468A - Dimension stabilization of expanded polystylene - Google Patents

Dimension stabilization of expanded polystylene

Info

Publication number
JPS54158468A
JPS54158468A JP6681678A JP6681678A JPS54158468A JP S54158468 A JPS54158468 A JP S54158468A JP 6681678 A JP6681678 A JP 6681678A JP 6681678 A JP6681678 A JP 6681678A JP S54158468 A JPS54158468 A JP S54158468A
Authority
JP
Japan
Prior art keywords
molded article
dimension
cells
blowing agent
forcedly
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
JP6681678A
Other languages
Japanese (ja)
Other versions
JPS6111183B2 (en
Inventor
Yoshinori Shirai
Yoshio Hattori
Shunichi Hayashi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP6681678A priority Critical patent/JPS54158468A/en
Publication of JPS54158468A publication Critical patent/JPS54158468A/en
Publication of JPS6111183B2 publication Critical patent/JPS6111183B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To contract forcedly the dimension of a molded article and to prevent the shrinkage of the dimension in use, by heating the molded article which is made by blow molding in a size larger than a given dimension and by equilibrating the gas pressure of a blowing agent in the cells of the molded article with an atmospheric pressure.
CONSTITUTION: A molded article of an expanded polystyrene which is formed in a size larger than a given dimension is heated at a normal or reduced pressure, for example, it is permitted to stand in an atmosphere at 45W70°C for 2W24 hours so that the gas pressure of a blowing agent in the cells of the molded article is equilibrated with an atmospheric pressure and the dimension of the molded article is forcedly contracted to a given dimension.
EFFECT: For example, in using as a fun casing, neither air blow nor sound quality changes.
COPYRIGHT: (C)1979,JPO&Japio
JP6681678A 1978-06-05 1978-06-05 Dimension stabilization of expanded polystylene Granted JPS54158468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6681678A JPS54158468A (en) 1978-06-05 1978-06-05 Dimension stabilization of expanded polystylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6681678A JPS54158468A (en) 1978-06-05 1978-06-05 Dimension stabilization of expanded polystylene

Publications (2)

Publication Number Publication Date
JPS54158468A true JPS54158468A (en) 1979-12-14
JPS6111183B2 JPS6111183B2 (en) 1986-04-01

Family

ID=13326751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6681678A Granted JPS54158468A (en) 1978-06-05 1978-06-05 Dimension stabilization of expanded polystylene

Country Status (1)

Country Link
JP (1) JPS54158468A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5876229A (en) * 1981-11-02 1983-05-09 Japan Styrene Paper Co Ltd Manufacture of polypropylene resin foamed and molded body
JPS63191621A (en) * 1987-02-04 1988-08-09 Sekisui Plastics Co Ltd Preparation of formed molding having excellent dimensional stability
JP2001279014A (en) * 2000-03-31 2001-10-10 Achilles Corp Dielectric expansion-molded product having improved dimensional stability

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005105097A (en) * 2003-09-30 2005-04-21 Kanebo Ltd Foam

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5296675A (en) * 1976-02-09 1977-08-13 Sekisui Plastics Moulding of foam body

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5296675A (en) * 1976-02-09 1977-08-13 Sekisui Plastics Moulding of foam body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5876229A (en) * 1981-11-02 1983-05-09 Japan Styrene Paper Co Ltd Manufacture of polypropylene resin foamed and molded body
JPS63191621A (en) * 1987-02-04 1988-08-09 Sekisui Plastics Co Ltd Preparation of formed molding having excellent dimensional stability
JPH0438222B2 (en) * 1987-02-04 1992-06-23 Sekisui Plastics
JP2001279014A (en) * 2000-03-31 2001-10-10 Achilles Corp Dielectric expansion-molded product having improved dimensional stability

Also Published As

Publication number Publication date
JPS6111183B2 (en) 1986-04-01

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