GB1109297A - Improvements in or relating to the manufacture of polystyrene articles - Google Patents
Improvements in or relating to the manufacture of polystyrene articlesInfo
- Publication number
- GB1109297A GB1109297A GB25164/65A GB2516465A GB1109297A GB 1109297 A GB1109297 A GB 1109297A GB 25164/65 A GB25164/65 A GB 25164/65A GB 2516465 A GB2516465 A GB 2516465A GB 1109297 A GB1109297 A GB 1109297A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polystyrene
- veneer
- relating
- manufacture
- sheet form
- 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.)
- Expired
Links
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
- B29C44/56—After-treatment of articles, e.g. for altering the shape
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/10—Applying counter-pressure during expanding
-
- 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
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/256—Sheets, plates, blanks or films
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
1,109,297. Moulding polystyrene. WATCHWELL Ltd. 15 June, 1965, No. 25164/65. Addition to 980,808. Heading B5A. The method of producing polystyrene articles by the steam expansion in die cavities of sheets of extruded polystyrene veneer as disclosed in Specifications 980,808 and 1,052,143 is modified by subjecting the extruded veneer to contact with boiling water prior to and/or after expansion by steam in the die cavity. The veneer may be fed to the die cavity in blanks of sheet form or continuously or intermittently in sheet form from an extruder or from a roll supply. Opposed pairs of complementary dies on conveyers may be used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25164/65A GB1109297A (en) | 1965-06-15 | 1965-06-15 | Improvements in or relating to the manufacture of polystyrene articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25164/65A GB1109297A (en) | 1965-06-15 | 1965-06-15 | Improvements in or relating to the manufacture of polystyrene articles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1109297A true GB1109297A (en) | 1968-04-10 |
Family
ID=10223268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25164/65A Expired GB1109297A (en) | 1965-06-15 | 1965-06-15 | Improvements in or relating to the manufacture of polystyrene articles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1109297A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0071016A2 (en) * | 1981-07-27 | 1983-02-09 | LAVORAZIONE MATERIE PLASTICHE L.M.P. SpA. | Apparatus for production of expanded polystyrene panels |
-
1965
- 1965-06-15 GB GB25164/65A patent/GB1109297A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0071016A2 (en) * | 1981-07-27 | 1983-02-09 | LAVORAZIONE MATERIE PLASTICHE L.M.P. SpA. | Apparatus for production of expanded polystyrene panels |
EP0071016A3 (en) * | 1981-07-27 | 1984-05-23 | Lavorazione Materie Plastiche L.M.P. Spa. | Method and apparatus for production of expanded polystyrene panels |
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