IT1244307B - Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface - Google Patents
Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surfaceInfo
- Publication number
- IT1244307B IT1244307B IT02142890A IT2142890A IT1244307B IT 1244307 B IT1244307 B IT 1244307B IT 02142890 A IT02142890 A IT 02142890A IT 2142890 A IT2142890 A IT 2142890A IT 1244307 B IT1244307 B IT 1244307B
- Authority
- IT
- Italy
- Prior art keywords
- expanded
- mould
- polystyrene
- plastic material
- moulding articles
- Prior art date
Links
- 238000000465 moulding Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 239000004793 Polystyrene Substances 0.000 abstract 3
- 229920002223 polystyrene Polymers 0.000 abstract 3
- 239000004794 expanded polystyrene Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Landscapes
- 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
To produce an article from expanded polystyrene with a hardened, smooth and impervious outer surface in a single moulding step, it is proposed that the polystyrene be superfluously melted by supplying heat through that portion of the mould which defines this surface, while the polystyrene is sintered in the mould, and that the mould be cooled by introducing a pause during which the polystyrene particles are maintained in a state of pressure which keeps them in contact with the heated mould surface which causes the melting. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT02142890A IT1244307B (en) | 1990-09-11 | 1990-09-11 | Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT02142890A IT1244307B (en) | 1990-09-11 | 1990-09-11 | Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface |
Publications (3)
Publication Number | Publication Date |
---|---|
IT9021428A0 IT9021428A0 (en) | 1990-09-11 |
IT9021428A1 IT9021428A1 (en) | 1992-03-11 |
IT1244307B true IT1244307B (en) | 1994-07-08 |
Family
ID=11181654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT02142890A IT1244307B (en) | 1990-09-11 | 1990-09-11 | Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1244307B (en) |
-
1990
- 1990-09-11 IT IT02142890A patent/IT1244307B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
IT9021428A0 (en) | 1990-09-11 |
IT9021428A1 (en) | 1992-03-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19960919 |