GB1122416A - Improvements relating to the production of highly transparent flat film - Google Patents
Improvements relating to the production of highly transparent flat filmInfo
- Publication number
- GB1122416A GB1122416A GB50803/65A GB5080365A GB1122416A GB 1122416 A GB1122416 A GB 1122416A GB 50803/65 A GB50803/65 A GB 50803/65A GB 5080365 A GB5080365 A GB 5080365A GB 1122416 A GB1122416 A GB 1122416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- draw roll
- film
- coolant
- liquid coolant
- roll
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
-
- 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
- B29C48/9175—Cooling of flat articles, e.g. using specially adapted supporting means by interposing a fluid layer between the supporting means and the flat article
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/92—Lubricating
-
- 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
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the 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
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
- B29K2105/0008—Anti-static agents
Abstract
1,122,416. Melt extruding flat film. J. P. BEMBERG A.G. 30 Nov., 1965 [1 Dec., 1964], No. 50803/65. Heading B5B. In producing highly transparent flat film by melt extruding a synthetic organic polymeric material through a slot die on to an internally cooled cooling roll and contacting the film during its passage over the draw roll with a liquid coolant, the extrusion die and the draw roll are relatively so disposed that the length of the free path of travel of the film through the air from the extrusion die to the line at which the film first contacts the draw roll is short and the peripheral outer surface of the draw roll is continuously coated with a liquid coolant containing an anti-blocking agent either by arranging for the draw roll to be immersed to a shallow depth in a bath of the coolant in such a manner that both a portion of the peripheral surface of the draw roll covered by the film and a portion of the peripheral surface of the draw roll emerging from the bath and not covered by the film is immersed in the bath of coolant. Alternatively, the draw roll may be entirely surrounded by air and the liquid coolant sprayed on to a portion of the peripheral surface of the draw roll approaching the line of first contact of the film with the draw roll. In this case the film is caused to pass to a second draw roll over and in contact with which it travels in such a manner that the surface of the film which was exposed to the air during the passage of the film over the first draw roll is in contact with the peripheral surface of the second draw roll and liquid coolant is sprayed on to the surface of the second draw roll approaching the line of first contact of the film with the second draw roll. The liquid coolant may be water, the surface tension of which has been reduced by the addition of a wetting agent, an organic liquid which is a non-solvent for the film material (such as isopropanol) or an aqueous dispersion of a synthetic organic polymeric material. The coolant may contain an anti-static agent.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1964B0079568 DE1504030B2 (en) | 1964-12-01 | 1964-12-01 | PROCESS FOR COOLING A TRANSPARENT FILM MADE FROM A THERMOPLASTIC PLASTIC DURING ITS PRODUCTION |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1122416A true GB1122416A (en) | 1968-08-07 |
Family
ID=6980355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50803/65A Expired GB1122416A (en) | 1964-12-01 | 1965-11-30 | Improvements relating to the production of highly transparent flat film |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT291537B (en) |
BE (1) | BE670207A (en) |
CH (1) | CH428186A (en) |
DE (1) | DE1504030B2 (en) |
FR (1) | FR1455671A (en) |
GB (1) | GB1122416A (en) |
LU (1) | LU49551A1 (en) |
NL (1) | NL6513456A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103068543A (en) * | 2010-06-02 | 2013-04-24 | 让-皮埃尔·达尔莱特 | Unit for cooling a film made of synthetic material |
EP3423298A4 (en) * | 2016-02-29 | 2020-03-18 | The Regents of the University of Colorado, a body corporate | Radiative cooling structures and systems |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0037844A1 (en) * | 1980-04-16 | 1981-10-21 | Erich Pagendarm | Process and apparatus for heat exchange between a web and its moving support |
-
1964
- 1964-12-01 DE DE1964B0079568 patent/DE1504030B2/en active Pending
-
1965
- 1965-09-28 BE BE670207D patent/BE670207A/xx unknown
- 1965-09-28 LU LU49551A patent/LU49551A1/xx unknown
- 1965-10-14 CH CH1420465A patent/CH428186A/en unknown
- 1965-10-18 NL NL6513456A patent/NL6513456A/xx unknown
- 1965-10-25 AT AT966565A patent/AT291537B/en not_active IP Right Cessation
- 1965-11-30 GB GB50803/65A patent/GB1122416A/en not_active Expired
- 1965-11-30 FR FR40335A patent/FR1455671A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103068543A (en) * | 2010-06-02 | 2013-04-24 | 让-皮埃尔·达尔莱特 | Unit for cooling a film made of synthetic material |
EP3423298A4 (en) * | 2016-02-29 | 2020-03-18 | The Regents of the University of Colorado, a body corporate | Radiative cooling structures and systems |
US10724809B2 (en) | 2016-02-29 | 2020-07-28 | The Regents Of The University Of Colorado, A Body Corporate | Radiative cooling structures and systems |
US11768041B2 (en) | 2016-02-29 | 2023-09-26 | The Regents Of The University Of Colorado, A Body Corporate | Radiative cooling structures and systems |
Also Published As
Publication number | Publication date |
---|---|
NL6513456A (en) | 1966-06-02 |
LU49551A1 (en) | 1965-11-29 |
BE670207A (en) | 1966-01-17 |
DE1504030B2 (en) | 1971-07-08 |
CH428186A (en) | 1967-01-15 |
FR1455671A (en) | 1966-10-14 |
DE1504030A1 (en) | 1969-07-17 |
AT291537B (en) | 1971-07-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB952419A (en) | Binding strap | |
GB1509056A (en) | Method of manufacturing synthetic plastics continuous rod-like material and equipment for carrying out the method | |
GB1371740A (en) | Coating optical fibres | |
GB1122416A (en) | Improvements relating to the production of highly transparent flat film | |
GB1282564A (en) | Cellular polyethylene | |
CH304354A (en) | Process for the manufacture of extruded articles, in particular fibers and films. | |
GB1214395A (en) | A method of preparing polypropylene sheet | |
GB1049024A (en) | Improvements in or relating to the manufacture of flat glass | |
GB1194220A (en) | Crystallisation Process. | |
ES325667A1 (en) | Apparatus for making thick polymeric articles | |
GB1312519A (en) | High-speed casting of thermoplastic web | |
GB1376525A (en) | Method and apparatus for manufacturing a flat cable as well as a cable made thereby | |
IT942110B (en) | PROCEDURE FOR REGULATING THE CONTENT OF IMPURITIES IN ZINC SULPHATE SOLUTIONS | |
GB894147A (en) | Extrusion process and apparatus | |
GB1218419A (en) | Glass production | |
ES454024A1 (en) | Process and apparatus for production of synthetic filaments from melts | |
JPS54160472A (en) | Molding of foamed resin sheet by t-die casting | |
ES268296A1 (en) | Process of producing synthetic paper | |
CH511697A (en) | Cooling roll for the production of flat films made of thermoplastics, in particular made of polyamide | |
GB823953A (en) | Improvements in or relating to the production of sheets and films of normally solid polyethylene plastics | |
SU407637A1 (en) | INSTALLATION FOR CONTINUOUS CASTING OF THE TAPE | |
SU98600A1 (en) | Boat for making continuous colored sheet glass by vertical extrusion machine | |
GB934773A (en) | Thermoplastic films and method and apparatus for obtaining the same | |
GB1313448A (en) | Process and apparatus for quenching polymer films | |
GB1066493A (en) | Process and apparatus for the manufacture of films in sheet form by melt extrusion |