IT950869B - Coestrusione a piu strati di fo glia composta di polistirene - Google Patents
Coestrusione a piu strati di fo glia composta di polistireneInfo
- Publication number
- IT950869B IT950869B IT22544/72A IT2254472A IT950869B IT 950869 B IT950869 B IT 950869B IT 22544/72 A IT22544/72 A IT 22544/72A IT 2254472 A IT2254472 A IT 2254472A IT 950869 B IT950869 B IT 950869B
- Authority
- IT
- Italy
- Prior art keywords
- glia
- polystyrene
- layer coextrusion
- coextrusion
- layer
- Prior art date
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/255—Flow control means, e.g. valves
- B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12894071A | 1971-03-29 | 1971-03-29 | |
US12872471A | 1971-03-29 | 1971-03-29 | |
US05/128,939 US3968196A (en) | 1971-03-29 | 1971-03-29 | Method of co-extrusion of polyvinylidene fluoride/polystyrene multiple-layered sheeting |
Publications (1)
Publication Number | Publication Date |
---|---|
IT950869B true IT950869B (it) | 1973-06-20 |
Family
ID=27383778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22544/72A IT950869B (it) | 1971-03-29 | 1972-03-29 | Coestrusione a piu strati di fo glia composta di polistirene |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE781335A (it) |
DE (1) | DE2215121A1 (it) |
FR (1) | FR2132142B1 (it) |
GB (1) | GB1364176A (it) |
IT (1) | IT950869B (it) |
NL (1) | NL7204236A (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076570A (en) | 1974-11-20 | 1978-02-28 | Cosden Technology, Inc. | Process for the production of a multiple layer laminate |
DE3405257C2 (de) * | 1984-02-15 | 1986-05-22 | Reifenhäuser GmbH & Co Maschinenfabrik, 5210 Troisdorf | Vorrichtung zum kontinuierlichen Strangpressen einer mehrschichtigen Kunststoffbahn |
GB9800781D0 (en) * | 1998-01-14 | 1998-03-11 | Epwin Group Plc | Co-extrusion method and apparatus |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3444031A (en) * | 1964-04-22 | 1969-05-13 | Dow Chemical Co | Light screens and method of making the same |
FR1424703A (fr) * | 1965-02-12 | 1966-01-14 | Dow Chemical Co | Procédé et appareil pour la préparation d'articles composites résineux thermoplastiques et pellicules résineuses minces |
GB1115007A (en) * | 1965-04-11 | 1968-05-22 | Nat Distillers Chem Corp | Method of producing laminated products |
US3476627A (en) * | 1966-04-12 | 1969-11-04 | Du Pont | Process for coextruding multiple-layered thermoplastic sheeting |
FR1495368A (fr) * | 1966-09-30 | 1967-09-15 | Crown Zellerbach Corp | Pellicules thermoplastiques à couches multiples |
US3477099A (en) * | 1967-12-21 | 1969-11-11 | Dow Chemical Co | Extrusion apparatus |
DE7106429U (de) * | 1969-03-10 | 1971-07-01 | The Dow Chemical Co | Steife vielschichtige Folie |
DE1924560A1 (de) * | 1969-05-14 | 1970-11-26 | Bellaplast Gmbh | Duennwandiger,durch Thermoverformung aus thermoplastischer Kunststoff-Folie hergestellter Formling und Verfahren zu seiner Herstellung |
-
1972
- 1972-03-23 GB GB1372372A patent/GB1364176A/en not_active Expired
- 1972-03-28 BE BE781335A patent/BE781335A/xx unknown
- 1972-03-28 DE DE19722215121 patent/DE2215121A1/de active Pending
- 1972-03-28 FR FR7210859A patent/FR2132142B1/fr not_active Expired
- 1972-03-29 NL NL7204236A patent/NL7204236A/xx not_active Application Discontinuation
- 1972-03-29 IT IT22544/72A patent/IT950869B/it active
Also Published As
Publication number | Publication date |
---|---|
NL7204236A (it) | 1972-10-03 |
FR2132142A1 (it) | 1972-11-17 |
GB1364176A (en) | 1974-08-21 |
DE2215121A1 (de) | 1972-10-19 |
BE781335A (fr) | 1972-09-28 |
FR2132142B1 (it) | 1974-09-13 |
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