JPS55148134A - Manufacture of preparatorily foamed grain of polystyrene resin - Google Patents
Manufacture of preparatorily foamed grain of polystyrene resinInfo
- Publication number
- JPS55148134A JPS55148134A JP5626879A JP5626879A JPS55148134A JP S55148134 A JPS55148134 A JP S55148134A JP 5626879 A JP5626879 A JP 5626879A JP 5626879 A JP5626879 A JP 5626879A JP S55148134 A JPS55148134 A JP S55148134A
- Authority
- JP
- Japan
- Prior art keywords
- preparatorily
- grains
- foamed
- treating agent
- foaming
- 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
- 229920005990 polystyrene resin Polymers 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 abstract 6
- 238000005187 foaming Methods 0.000 abstract 4
- 229920005989 resin Polymers 0.000 abstract 4
- 239000011347 resin Substances 0.000 abstract 4
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 abstract 1
- 230000001476 alcoholic effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229920006248 expandable polystyrene Polymers 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229940031953 sorbitan monopalmitate Drugs 0.000 abstract 1
- 235000011071 sorbitan monopalmitate Nutrition 0.000 abstract 1
- 239000001570 sorbitan monopalmitate Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3461—Making or treating expandable particles
-
- 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
Landscapes
- Molding Of Porous Articles (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
PURPOSE:To prevent preparatorily foamed polystyrene resin grains from being wetted at the time preparatory foaming and to reduce bridging, by atomizing and supplying a treating agent to the resin grains to coat them with the agent when preparatorily foaming the grains. CONSTITUTION:Polystyrene resin grains are supplied to the lower part of a preparatory foaming vessel 4 by a screw feeder 2 and preparatorily foamed to make preparatorily foamed grains. A unit A1 for coating a treating agent such as an alcoholic solution of sorbitan monopalmitate or the like is equipped in a steam duct 11 for supplying steam S to the preparatorily foamed grains. The treating agent is atomized into the preparatory foaming vessel 4 by the flow of the steam so that the atomized agent is dispersed into the flow R of the resin grains. According to this method, a very small quantity of the treating agent can be uniformly coated on the resin grains and the desired preparatorily foamed grains can be continuously and efficiently manufactured.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5626879A JPS55148134A (en) | 1979-05-10 | 1979-05-10 | Manufacture of preparatorily foamed grain of polystyrene resin |
| JP21399486A JPS62109836A (en) | 1979-05-10 | 1986-09-12 | Production of preexpanded polystyrene based resin particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5626879A JPS55148134A (en) | 1979-05-10 | 1979-05-10 | Manufacture of preparatorily foamed grain of polystyrene resin |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21399486A Division JPS62109836A (en) | 1979-05-10 | 1986-09-12 | Production of preexpanded polystyrene based resin particle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55148134A true JPS55148134A (en) | 1980-11-18 |
| JPS626578B2 JPS626578B2 (en) | 1987-02-12 |
Family
ID=13022329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5626879A Granted JPS55148134A (en) | 1979-05-10 | 1979-05-10 | Manufacture of preparatorily foamed grain of polystyrene resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55148134A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125730A (en) * | 1982-01-22 | 1983-07-26 | Sekisui Plastics Co Ltd | Production of prefoamed particles and system therefor |
| JPS592821A (en) * | 1982-06-30 | 1984-01-09 | Badische Yuka Co Ltd | Manufacture of molding employing prefoaming particle of foaming thermoplastic resin |
-
1979
- 1979-05-10 JP JP5626879A patent/JPS55148134A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125730A (en) * | 1982-01-22 | 1983-07-26 | Sekisui Plastics Co Ltd | Production of prefoamed particles and system therefor |
| JPS592821A (en) * | 1982-06-30 | 1984-01-09 | Badische Yuka Co Ltd | Manufacture of molding employing prefoaming particle of foaming thermoplastic resin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS626578B2 (en) | 1987-02-12 |
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