JPS57174325A - Production of thermoplastic resin foam - Google Patents

Production of thermoplastic resin foam

Info

Publication number
JPS57174325A
JPS57174325A JP5918681A JP5918681A JPS57174325A JP S57174325 A JPS57174325 A JP S57174325A JP 5918681 A JP5918681 A JP 5918681A JP 5918681 A JP5918681 A JP 5918681A JP S57174325 A JPS57174325 A JP S57174325A
Authority
JP
Japan
Prior art keywords
carbonate
foam
styrene
maleic anhydride
anhydride copolymer
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
JP5918681A
Other languages
Japanese (ja)
Other versions
JPH0224857B2 (en
Inventor
Nagaro Ariga
Kyotaro Shimazu
Hiroyuki Sato
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP5918681A priority Critical patent/JPS57174325A/en
Publication of JPS57174325A publication Critical patent/JPS57174325A/en
Priority to US06/724,509 priority patent/US4596832A/en
Publication of JPH0224857B2 publication Critical patent/JPH0224857B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To produce a high-expansion ratio foam without danger of poisoning and explosion, by employing a carbonate of GroupIa or Group IIa metal or its mixture with a carboxylate of the same Group metal as a blowing agent for a styrene/maleic anhydride copolymer resin.
CONSTITUTION: In the production of a foam from a material which is a styrene/ maleic anhydride copolymer resin, the titled foam is prepared by employing, as a blowing, agent, a carbonate of a GroupIa and/or a Group IIa metal of the periodic table, (e.g., sodium carbonate) or its mixture with a carboxylate (e.g., formate) of the same Group metal. In using said carbonate, etc., 0.1W10wt% prepowdered carbonate, etc., is dry-blended with 99.9W90wt% styrene/maleic anhydride copolymer resin. Next, the blend is molten by heating and extruded or injected. During the molding, the carbonate reacts with the resin, produces a blowing gas and produces a high-expansion ratio foam.
COPYRIGHT: (C)1982,JPO&Japio
JP5918681A 1980-07-28 1981-04-21 Production of thermoplastic resin foam Granted JPS57174325A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5918681A JPS57174325A (en) 1981-04-21 1981-04-21 Production of thermoplastic resin foam
US06/724,509 US4596832A (en) 1980-07-28 1985-04-19 Process for producing thermoplastic resin foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5918681A JPS57174325A (en) 1981-04-21 1981-04-21 Production of thermoplastic resin foam

Publications (2)

Publication Number Publication Date
JPS57174325A true JPS57174325A (en) 1982-10-27
JPH0224857B2 JPH0224857B2 (en) 1990-05-30

Family

ID=13106118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5918681A Granted JPS57174325A (en) 1980-07-28 1981-04-21 Production of thermoplastic resin foam

Country Status (1)

Country Link
JP (1) JPS57174325A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51109960A (en) * 1975-03-25 1976-09-29 Asahi Dow Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51109960A (en) * 1975-03-25 1976-09-29 Asahi Dow Ltd

Also Published As

Publication number Publication date
JPH0224857B2 (en) 1990-05-30

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