JPS5667343A - Production of improved styrene polymer extruded foam - Google Patents
Production of improved styrene polymer extruded foamInfo
- Publication number
- JPS5667343A JPS5667343A JP14201479A JP14201479A JPS5667343A JP S5667343 A JPS5667343 A JP S5667343A JP 14201479 A JP14201479 A JP 14201479A JP 14201479 A JP14201479 A JP 14201479A JP S5667343 A JPS5667343 A JP S5667343A
- Authority
- JP
- Japan
- Prior art keywords
- styrene polymer
- styrene
- blended
- extruded foam
- production
- 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
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
PURPOSE: To produce the titled foam which excels in compression characteristics and heat insulating performance and in which density distribution in the cross- section of an extruded foam sheet is uniform, by a method wherein a specified styrene polymer with which a flame retarder and a nucleating agent are blended, is used.
CONSTITUTION: About 0.5W10wt% of a flame retarder (a halogen-contg. compd. having a decomposition temp. of not higher than 250°C, e.g. tetrabromodecane) and about 0.001W3wt% of a nucleating agent (at least one member selected from an indigo cpd., a copper phthalocyanine pigment and an anthraquinone pigment) are blended with a styrene polymer contg. not more than 0.3wt% of styrene monomer and 0.5W1.5% of styrene trimer. The temperature of the resulting blend is brought to a foaming temperature (about 80W180°C). The blend is extruded from dies at a room temp. under atmospheric pressure to carry out expansion molding.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54142014A JPS5835615B2 (en) | 1979-11-05 | 1979-11-05 | Improved styrenic polymer extrusion foam manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54142014A JPS5835615B2 (en) | 1979-11-05 | 1979-11-05 | Improved styrenic polymer extrusion foam manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5667343A true JPS5667343A (en) | 1981-06-06 |
JPS5835615B2 JPS5835615B2 (en) | 1983-08-03 |
Family
ID=15305360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54142014A Expired JPS5835615B2 (en) | 1979-11-05 | 1979-11-05 | Improved styrenic polymer extrusion foam manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5835615B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996015181A3 (en) * | 1994-11-15 | 1996-08-01 | Shell Int Research | Expandable beads based on a polymer of a vinylaromatic compound containing blowing agent and plasticizer |
JPH09206669A (en) * | 1996-01-31 | 1997-08-12 | Sekisui Plastics Co Ltd | Polystyrene resin foamed sheet and its manufacture |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6011606A (en) * | 1983-06-30 | 1985-01-21 | Ishikawajima Harima Heavy Ind Co Ltd | Exhaust valve device of internal-combustion engine |
-
1979
- 1979-11-05 JP JP54142014A patent/JPS5835615B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996015181A3 (en) * | 1994-11-15 | 1996-08-01 | Shell Int Research | Expandable beads based on a polymer of a vinylaromatic compound containing blowing agent and plasticizer |
US5686497A (en) * | 1994-11-15 | 1997-11-11 | Shell Oil Company | Expandable beads based on a polymer of a vinylaromatic compound containing blowing agent and plasticizer |
JPH09206669A (en) * | 1996-01-31 | 1997-08-12 | Sekisui Plastics Co Ltd | Polystyrene resin foamed sheet and its manufacture |
Also Published As
Publication number | Publication date |
---|---|
JPS5835615B2 (en) | 1983-08-03 |
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