JPS57174325A - Production of thermoplastic resin foam - Google Patents
Production of thermoplastic resin foamInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51109960A (en) * | 1975-03-25 | 1976-09-29 | Asahi Dow Ltd |
-
1981
- 1981-04-21 JP JP5918681A patent/JPS57174325A/en active Granted
Patent Citations (1)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57109834A (en) | Foamed polystyrene sheet | |
JPS53102381A (en) | Production of polyolefin stretched product | |
JPS57174325A (en) | Production of thermoplastic resin foam | |
JPS5512108A (en) | Preparation of formed product | |
JPS55158933A (en) | Carbonic acid gas absorbing sheet and manufacture thereof | |
GB1466027A (en) | Water-and air-permeable material | |
JPS5679131A (en) | Preparation of resin foam highly loaded with inorganic material | |
JPS53121864A (en) | Manufacture of ethylenetetrafluoroethylene copolymer foam | |
JPS5272383A (en) | Porous molded product with chelate-forming capacity and its preparatio n | |
JPS5742739A (en) | Blowing agent composition | |
JPS5580408A (en) | Preparation of thermoplastic adhesive resin | |
JPS54152068A (en) | Production of polyethylene foamed ariticle | |
JPS5618642A (en) | Urea resin molded product | |
JPS5626524A (en) | Oxygen absorption sheet | |
JPS5247051A (en) | Method for molding polyamide compositions | |
JPS52124091A (en) | Flame retardant molded articles of unsaturated polyester resins | |
JPS53138470A (en) | Polypropylene resin composition foam and its production | |
JPS53124573A (en) | Manufacture of highly crystalline polyolefin resin foams | |
JPS55125126A (en) | Molded product of foamable resin | |
JPS5468849A (en) | Mixing of thermoplastic resin pellets and powdery filler | |
JPS5692945A (en) | Synthetic resin composition having iridescent luster | |
JPS5211241A (en) | Intumescent and flame retardant resin composition | |
JPS54132650A (en) | Resin composition for injection blow molding | |
JPS55137159A (en) | Preparing fire-resistant polyamide composition | |
JPS57100151A (en) | Film for agriculture |