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JPS5653047A - Production of foamed resin molding - Google Patents

Production of foamed resin molding

Info

Publication number
JPS5653047A
JPS5653047A JP4346280A JP4346280A JPS5653047A JP S5653047 A JPS5653047 A JP S5653047A JP 4346280 A JP4346280 A JP 4346280A JP 4346280 A JP4346280 A JP 4346280A JP S5653047 A JPS5653047 A JP S5653047A
Authority
JP
Japan
Prior art keywords
beads
mold
foamed
expanded
foamed resin
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
JP4346280A
Other languages
Japanese (ja)
Other versions
JPS6118934B2 (en
Inventor
Tsuneo Kaida
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 Chemical BASF Co Ltd
Original Assignee
Mitsubishi Chemical BASF 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 Mitsubishi Chemical BASF Co Ltd filed Critical Mitsubishi Chemical BASF Co Ltd
Priority to JP4346280A priority Critical patent/JPS5653047A/en
Publication of JPS5653047A publication Critical patent/JPS5653047A/en
Publication of JPS6118934B2 publication Critical patent/JPS6118934B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To produce the molding free from burrs by using expandable polystyrene beads comprising pre-expanded beads admixed with a specified quantity of eroding agent for the films on the surfaces of the pre-expanded beads, in the method of producing the foamed resin moldings utilizing a heated mold and a cooled mold.
CONSTITUTION: One to ten pts.wt. of a volatile foaming agent (e.g., butane, pentane, etc.) is admixed to 100pts.wt. of styrene resin beads, and the surfaces of the beads are coated with 0.3W1pt.wt. of the eroding agent (e.g., strearic acid monoglyceride) for the film on the surfaces of the pre-expanded beads, to form the expandable polystyrene beads A. The beads A are pre-expanded, aged, and then foamed in the heating mold. The mold is opened at a temperature above the softening point of the resin to allow the gas to escape through the plural small holes generated at the surfaces of the foamed body, which is then transferred into the cooling mold and molded while being cooled, to obtain the foamed resin molding.
COPYRIGHT: (C)1981,JPO&Japio
JP4346280A 1980-04-04 1980-04-04 Production of foamed resin molding Granted JPS5653047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4346280A JPS5653047A (en) 1980-04-04 1980-04-04 Production of foamed resin molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4346280A JPS5653047A (en) 1980-04-04 1980-04-04 Production of foamed resin molding

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12115278A Division JPS5549231A (en) 1978-10-03 1978-10-03 Manufacturing method for foam resin formed product

Publications (2)

Publication Number Publication Date
JPS5653047A true JPS5653047A (en) 1981-05-12
JPS6118934B2 JPS6118934B2 (en) 1986-05-15

Family

ID=12664369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4346280A Granted JPS5653047A (en) 1980-04-04 1980-04-04 Production of foamed resin molding

Country Status (1)

Country Link
JP (1) JPS5653047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61157538A (en) * 1984-12-28 1986-07-17 Achilles Corp Modified expandable polystyrene bead

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826248A (en) * 1971-08-07 1973-04-06
JPS5213559A (en) * 1975-07-22 1977-02-01 Kohkoku Chem Ind Cellular polystyrene resin compound
JPS5290578A (en) * 1976-01-16 1977-07-29 Selene Trust Process for manufacturing molded resin foam
JPS52119670A (en) * 1976-03-31 1977-10-07 Kurtz Eisenwerk Ph Molding machine for manufacturing foamed thermoplastic product in two stages
JPS52127968A (en) * 1976-04-20 1977-10-27 Hitachi Chemical Co Ltd Expandable polystyrene powder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826248A (en) * 1971-08-07 1973-04-06
JPS5213559A (en) * 1975-07-22 1977-02-01 Kohkoku Chem Ind Cellular polystyrene resin compound
JPS5290578A (en) * 1976-01-16 1977-07-29 Selene Trust Process for manufacturing molded resin foam
JPS52119670A (en) * 1976-03-31 1977-10-07 Kurtz Eisenwerk Ph Molding machine for manufacturing foamed thermoplastic product in two stages
JPS52127968A (en) * 1976-04-20 1977-10-27 Hitachi Chemical Co Ltd Expandable polystyrene powder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61157538A (en) * 1984-12-28 1986-07-17 Achilles Corp Modified expandable polystyrene bead
JPH0464538B2 (en) * 1984-12-28 1992-10-15 Achilles Corp

Also Published As

Publication number Publication date
JPS6118934B2 (en) 1986-05-15

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