JPS5662135A - Preparation of foamed polystyrene sheet - Google Patents
Preparation of foamed polystyrene sheetInfo
- Publication number
- JPS5662135A JPS5662135A JP13701579A JP13701579A JPS5662135A JP S5662135 A JPS5662135 A JP S5662135A JP 13701579 A JP13701579 A JP 13701579A JP 13701579 A JP13701579 A JP 13701579A JP S5662135 A JPS5662135 A JP S5662135A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- cylindrical body
- pressure
- cooling medium
- ringed
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
PURPOSE: To obtain the titled sheet which is restrained extremely from growth of surface bubbles, provided with a thick resin layer and short of tacky substances by a method wherein polystyrene and a low-boiling-point organic compound are extruded in a cylindrical form and cooled in contact with a porous cooling ring.
CONSTITUTION: Polystyrene and a low-boiling-point organic compound are melted, kneaded and extruded from a ringed slit 2 of a die 1 as a cylindrical body 7. A cooling ring 3 of porous material is provided between the ringed slit 2 and a cooling drum 6, and as pressure is given to a cooling medium such as water and the like, the cooling medium is permeated from a cooling medium passage 4 onto the surface of the cylindrical body 7 to quickly cool the external surface of the cylindrical body. On the other hand, when pressure in the air barrel 8 is increased by blowing the air out of an air blow tube 5, the cylindrical body 7 is pushed by that pressure to the intrnal wall of the cooling ring 3 and received by the cooling drum 6 as the internal diameter is expanded. Then, the intended sheet is obtained when it is cut open by a slitter.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13701579A JPS5662135A (en) | 1979-10-25 | 1979-10-25 | Preparation of foamed polystyrene sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13701579A JPS5662135A (en) | 1979-10-25 | 1979-10-25 | Preparation of foamed polystyrene sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5662135A true JPS5662135A (en) | 1981-05-27 |
Family
ID=15188821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13701579A Pending JPS5662135A (en) | 1979-10-25 | 1979-10-25 | Preparation of foamed polystyrene sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5662135A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59120428A (en) * | 1982-12-20 | 1984-07-12 | モ−ビル オイル コ−ポレ−ション | Method and device for extrusion-molding tubular foamed polymer sheet |
CN110091493A (en) * | 2019-04-28 | 2019-08-06 | 重庆爱博塑业有限公司 | A kind of PS sheet material shaping equipment |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5280361A (en) * | 1975-12-27 | 1977-07-06 | Mitsui Toatsu Chemicals | Process for manufacturing foam sheet |
-
1979
- 1979-10-25 JP JP13701579A patent/JPS5662135A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5280361A (en) * | 1975-12-27 | 1977-07-06 | Mitsui Toatsu Chemicals | Process for manufacturing foam sheet |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59120428A (en) * | 1982-12-20 | 1984-07-12 | モ−ビル オイル コ−ポレ−ション | Method and device for extrusion-molding tubular foamed polymer sheet |
CN110091493A (en) * | 2019-04-28 | 2019-08-06 | 重庆爱博塑业有限公司 | A kind of PS sheet material shaping equipment |
CN110091493B (en) * | 2019-04-28 | 2024-02-02 | 重庆爱博塑业有限公司 | PS sheet shaping device |
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