DE654299C - Production of flexible strips or foils made of polystyrene o. - Google Patents

Production of flexible strips or foils made of polystyrene o.

Info

Publication number
DE654299C
DE654299C DEN35516D DEN0035516D DE654299C DE 654299 C DE654299 C DE 654299C DE N35516 D DEN35516 D DE N35516D DE N0035516 D DEN0035516 D DE N0035516D DE 654299 C DE654299 C DE 654299C
Authority
DE
Germany
Prior art keywords
polystyrene
nozzle
production
pulling
longitudinal
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
Application number
DEN35516D
Other languages
German (de)
Inventor
Ernst Studt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Norddeutsche Seekabelwerke GmbH
Original Assignee
Norddeutsche Seekabelwerke GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Norddeutsche Seekabelwerke GmbH filed Critical Norddeutsche Seekabelwerke GmbH
Priority to DEN35516D priority Critical patent/DE654299C/en
Application granted granted Critical
Publication of DE654299C publication Critical patent/DE654299C/en
Expired legal-status Critical Current

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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
    • 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
    • B29C48/355—Conveyors for extruded articles
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/20—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • 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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Description

Herstellung von biegsamen Bändern oder Folien aus Polystyrol o. dgl. Im Hauptpatent ist ein Verfahren zur Herstellung von biegsamen Bändern oder Fäden aus Polymerisationsprodukten von #-\rylolefinen, wie z. B. Polystyrol, beschrieben. Gemäß diesem Verfahren wird das Material bei erhöhter Temperatur aus einer Düse ausgepreßt und so ausgezogen, daß die Auszugsgeschwindigkeit größer ist als die Austrittsgeschwindigkeit der Masse aus der Düse. Die nach diesem Verfahren hergestellten Bänder lassen sich senkrecht zur Längsrichtung des Bandes über kleine Durchmesser biegen ohne zu brechen; in der Längsrichtung selbst aber sind sie noch spröde und spaltbar.Manufacture of flexible strips or foils made of polystyrene or the like. In the main patent is a method for the production of flexible tapes or threads from polymerization products of # - \ rylolefinen, such as. B. polystyrene described. According to this method, the material comes out of a nozzle at an elevated temperature squeezed out and pulled out so that the pull-out speed is greater than that Exit speed of the mass from the nozzle. Those made by this process Ribbons can be made perpendicular to the longitudinal direction of the ribbon over small diameters bend without breaking; but in the longitudinal direction they are still brittle and fissile.

Gegenstand der Erfindung ist ein Verfahren zur Herstellung von biegsamen Bändern tuid Folien aus Polymerisationsprodukten von Arylolefinen, beispiels«eise Polystyrol, die in jeder Richtung biegsam und nachgiebig sind und somit ihre Sprödigkeit vollständig verloren haben. Dieses Ziel wird gemäß der Erfindung dadurch erreicht, daß ein -bei erhöhter Temperatur aus einer Düse gespritztes Band der Kunstmasse während des Auspressens oder unmittelbar nach dem Auspressen aus der Düse nicht nur einem Längszug, sondern auch einer Querreckung unterworfen wird, Es hat sich gezeigt, daß die ausgezogenen und quergerechten Bänder und Folien dann die günstigsten mechanischen Eigenschaften aufweisen, wenn ihre Dicke während des Ausziehens in Längs- und Querrichtung auf eriva 1/9 der ursprünglichen Dicke zurückgeht. Um vollkommen homigene Folien zu erhalten, empfiehl; es sich ferner, das Material in Längs- und Querrichtung gleichmäßig stark auf Zug zu beanspruchen.The invention relates to a method for producing flexible ones Tapes are made from films made from polymerization products of aryl olefins, for example Polystyrene, which are flexible and pliable in every direction and thus their brittleness have completely lost. This object is achieved according to the invention by that a band of synthetic material injected from a nozzle at an elevated temperature not during or immediately after being pressed out of the nozzle is subjected only to a longitudinal pull, but also to a transverse stretch, it has become shown that the drawn out and transversely aligned tapes and foils are then the cheapest have mechanical properties when their thickness is in Lengthways and crossways to eriva 1/9 of the original thickness. To be perfect to get homigenic slides is recommended; it is also the material in longitudinal and Transverse direction to stress evenly strong on train.

Welche Apparatur zur Ausübung des Verfahrens benutzt wird, ist für die Erfindung an sich belanglos. Im folgenden sei als Beispiel an Hand der Abbildungen eine Ausführungsform des Verfahrens beschri,ebeat, bei der eine au sich bekannte Vorrichtung benutzt wird. Das zu verarbeitende 1liawrial, beispielsweise Polystyrol. .wird zunächst bei erhöhter Temperatur - vorzugsweise i 5o" - aus einem Mundstück i mit eiticr Düse von rechteckigem Querschnitt ausaepreßt. Das heraustretende Band gelangt sodann in die Streckvorrichtung. die im wesentlichen aus zwei endlosen Bändern besteht, die über Rollen 3 laufen und in der aus Abb. 2 ersichtlichen Weise auseinanderstrebend angeordnet sind. Die Rollen werden in geeigneter Weise angetrieben, so daß sich die obere Seite der Bänder von der Düse fortbewegt. Auf den Bändern sind kleine Stifte. angebracht, die das aus der Düse tretende Band erfassen und mitnehmen. Nach dem Verlassen der Streckvorrichtung wird die fertige Folie auf einer geeigneten Vorrichtung 5 aufgewickelt. Nötigenfalls muß man die Folie zwischen Streckvorrichtung und Aufwickelvorrichtung noch abkühlen lassen.What equipment is used to perform the procedure is for the invention is irrelevant in itself. The following is an example based on the figures an embodiment of the method described ebeat, in which a known per se Device is used. The 1liawrial to be processed, for example polystyrene. .is first at an elevated temperature - preferably 150 "- from a mouthpiece I press it out with an eiticr nozzle with a rectangular cross-section. The emerging tape then enters the stretching device. which essentially consists of two endless belts consists, which run over rollers 3 and diverging in the manner shown in Fig. 2 arranged are. The rollers are driven in a suitable manner so that the upper side that moves the tapes away from the nozzle. There are small pens on the ribbons. appropriate, which grasp the tape emerging from the nozzle and take it with them. After leaving the Stretching device, the finished film is wound up on a suitable device 5. If necessary, the film must be placed between the stretching device and the winding device let it cool down.

Die nach dem Verfahren gemäß der Erfmdung hergestellten Bänder und Folien eignen sich wegen ihrer guten dielektrischen Eigenschaften besonders als Isolationsmaterial von elektrischen Einrichtungen, beispielsweise Wickelkondensatoren. Ferner können Bänder, die nach dem Verfahren gemäß der Erfindung hergestellt worden sind, als Ersatz der bisher bei Kabeln üblichen PapierbandisoIation verwendet «-erden. `Weiterhin können die Folien zum Aufbau von geschichteten Isolierstoffen venv@endet werden.The tapes produced by the method according to the invention and Because of their good dielectric properties, foils are particularly suitable as Insulation material for electrical devices, for example wound capacitors. In addition, tapes which have been produced by the method according to the invention can be used are used to replace the paper tape insulation previously used for cables. The foils can also be used to build up layered insulating materials will.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Herstellen von biegsamen Bändern oder Folien aus Polymerisationsprodukten von Arylolefinen, z. B. Polystyrol, insbesondere für Zwecke der Isolation von Kabeln und Kondensatoren, durch Ausziehen des erwärmter Stoffes aus einer Düse nach Patent 653 25o, dadurch gekennzeichnet, daß das aus der Düse austretende Band während des Ausziehens oder unmittelbar nach dem Ausziehen auch quer zur Ausziehrichtung gereckt wird.. z. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die Dicke des Bandes während des Ausziehens in Längs- und Querrichtung auf etwa 1/9 der ursprünglichen Dicke vermindert wird. 3. Verfahren nach Anspruch i oder z, dadurch gekennzeichnet, daß die Kunstmasse während der Streckbehandlung in Längs- und Querrichtung in gleich starkem Maße auf Zug beansprucht wird. PATENT CLAIMS: i. Process for making flexible tapes or films from polymerization products of aryl olefins, e.g. B. polystyrene, especially for the purpose of insulating cables and capacitors, by pulling the heated material out of a nozzle according to patent 653 25o, characterized in that the tape emerging from the nozzle is also stretched transversely to the pulling direction during pulling out or immediately after pulling out will .. z. Method according to claim i, characterized in that the thickness of the tape is reduced to about 1/9 of the original thickness during the drawing in the longitudinal and transverse directions. 3. The method according to claim i or z, characterized in that the synthetic mass is stressed to the same extent on train during the stretching treatment in the longitudinal and transverse directions.
DEN35516D 1932-10-24 1933-07-21 Production of flexible strips or foils made of polystyrene o. Expired DE654299C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN35516D DE654299C (en) 1932-10-24 1933-07-21 Production of flexible strips or foils made of polystyrene o.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEN34343D DE653250C (en) 1932-10-24 1932-10-24 Manufacture of flexible straps or threads made of polystyrene or the like.
DEN35516D DE654299C (en) 1932-10-24 1933-07-21 Production of flexible strips or foils made of polystyrene o.

Publications (1)

Publication Number Publication Date
DE654299C true DE654299C (en) 1937-12-18

Family

ID=6449037

Family Applications (4)

Application Number Title Priority Date Filing Date
DEN39739D Expired DE655014C (en) 1932-10-24 Method and device for the production of flexible tapes
DEN34343D Expired DE653250C (en) 1932-10-24 1932-10-24 Manufacture of flexible straps or threads made of polystyrene or the like.
DEN35516D Expired DE654299C (en) 1932-10-24 1933-07-21 Production of flexible strips or foils made of polystyrene o.
DEN36008D Expired DE654757C (en) 1932-10-24 1933-11-26 Manufacture of flexible tapes, foils or tubes made of polystyrene or the like.

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DEN39739D Expired DE655014C (en) 1932-10-24 Method and device for the production of flexible tapes
DEN34343D Expired DE653250C (en) 1932-10-24 1932-10-24 Manufacture of flexible straps or threads made of polystyrene or the like.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEN36008D Expired DE654757C (en) 1932-10-24 1933-11-26 Manufacture of flexible tapes, foils or tubes made of polystyrene or the like.

Country Status (4)

Country Link
DE (4) DE653250C (en)
FR (3) FR762838A (en)
GB (2) GB419900A (en)
NL (1) NL37479C (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767619C (en) * 1938-12-23 1952-11-24 Ig Farbenindustrie Ag Sieve mesh or mesh
DE872866C (en) * 1941-04-23 1953-04-09 Plax Corp Method and device for deforming organic, plastic plastics by pressing a strand out of a nozzle
DE887262C (en) * 1951-05-03 1953-08-20 Langheck & Co Process for drying films made from regenerated cellulose
DE970339C (en) * 1940-09-14 1958-09-11 Stahl Und Walzwerke Rasselstei Process for the production of foil-coated metal strips or sheets for the production of cans or similar containers
DE1102381B (en) * 1952-08-12 1961-03-16 Du Pont Device for running, regulated, continuous stretching and shrinking of web-shaped material, in particular thermoplastic plastic films
DE974729C (en) * 1943-08-17 1961-05-31 Plax Ges Mit Beschraenkter Haf Method and device for the continuous production of biaxially oriented films from solvent-free organic polymerization products, in particular polystyrene
DE975383C (en) * 1941-12-22 1961-11-16 Plax G M B H Deutsche Device for the production of foils from solvent-free, organic, thermoplastic plastics
DE1180511B (en) * 1960-09-26 1964-10-29 Basf Ag Process for post-drying of film webs made of polyvinyl chloride and vinyl chloride copolymers produced on a film casting machine
DE1194561B (en) * 1956-05-18 1965-06-10 Ici Ltd Process for the production of a biaxially oriented polyethylene terephthalate film with high strength in the longitudinal direction
DE1239840B (en) * 1956-12-20 1967-05-03 Du Pont Process for improving the physical properties of an essentially amorphous film web made of linear polyterephthalic acid esters

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748562C (en) * 1935-04-13 1944-11-06 Ig Farbenindustrie Ag Process for the production of artificially shaped structures from polystyrene
DE943257C (en) * 1936-04-29 1956-05-17 Ici Ltd Process for the production of films, coverings, strips, tapes and the like. like
DE758240C (en) * 1938-06-17 1953-08-10 Siemens & Halske A G Process for the production of electrical wound capacitors with a dielectric made of polymer material
DE856689C (en) * 1940-06-24 1952-11-24 Gerhard Aschenbrenner Process for the production of artificial threads
DE750841C (en) * 1941-06-25 1945-01-30 Process for the production of panels from filler-containing polyisobutylene
DE908661C (en) * 1941-08-28 1954-04-08 Roehm & Haas G M B H Process for the production of wool-like, artificial threads from polymerisation products
US2544258A (en) * 1945-03-03 1951-03-06 Technicolor Motion Picture Method and means for forming film
NL68647C (en) * 1945-03-28 1900-01-01
US2529897A (en) * 1948-01-17 1950-11-14 Plax Corp Process of and apparatus for manufacturing thin wall tubing
BE488617A (en) * 1948-07-14 1900-01-01 Plax Corp
BE488618A (en) * 1948-10-27 1900-01-01
NL73075C (en) * 1951-05-22 1900-01-01
US2720680A (en) * 1952-02-29 1955-10-18 Milo R Gerow Methods and machines for producing tubing and sheeting
US2823421A (en) * 1952-05-12 1958-02-18 Du Pont Stretching of polyethylene terephthalate film
DE968346C (en) * 1952-06-26 1958-02-06 Huckfeldt & Thorlichen Process for the production of curved synthetic fibers
US2718658A (en) * 1952-12-22 1955-09-27 Dow Chemical Co Film stretching device
US2695420A (en) * 1952-12-22 1954-11-30 Dow Chemical Co Film stretching device
US2697248A (en) * 1952-12-22 1954-12-21 Dow Chemical Co Film stretching device
DE1056817B (en) * 1953-12-09 1959-05-06 Horst Heidrich Device for the production of tubular films or the like from thermoplastic materials
DE1128635B (en) * 1954-08-17 1962-04-26 Hercules Powder Co Ltd Process for the production of an unsupported, molecularly oriented film from a polymer of 3,3-bis- (chloromethyl) -oxacyclobutane
DE1100937B (en) * 1955-09-09 1961-03-02 Mannesmann Ag Process for increasing the strength of pipes made of polyethylene which are subjected to internal pressure
DE1090503B (en) * 1955-10-28 1960-10-06 Windmoeller & Hoelscher Device for producing flat and gusseted bags from paper provided with a thermoplastic coating or the like.
DE1125144B (en) * 1955-10-29 1962-03-08 Hoechst Ag Process for solidifying plastic pipes
DE1140700B (en) * 1956-06-14 1962-12-06 Horst Heidrich Device for the production of profile tubes from thermoplastics
US3009200A (en) * 1956-07-31 1961-11-21 Lonza Electric & Chem Works Extrusion arrangement for producing foils
US3052924A (en) * 1959-09-28 1962-09-11 Monsanto Chemicals Process for the manufacture of biaxially oriented crystalline polystyrene
DE1184067B (en) * 1960-10-04 1964-12-23 Roehm & Haas Gmbh Production of pliers-like devices from thermoplastic material
US3217361A (en) * 1963-01-30 1965-11-16 Fmc Corp Stretching mechanism for blown films
IL22357A (en) * 1963-11-22 1968-04-25 Petzetakis Aristovoulos George Calibration of tubes
GB1249835A (en) * 1968-11-30 1971-10-13 Mitsubishi Petrochemical Co Method and apparatus for stretching film of thermoplastic synthetic plastics material
GB8827967D0 (en) * 1988-11-30 1989-01-05 Ward I M Die-free drawing

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767619C (en) * 1938-12-23 1952-11-24 Ig Farbenindustrie Ag Sieve mesh or mesh
DE970339C (en) * 1940-09-14 1958-09-11 Stahl Und Walzwerke Rasselstei Process for the production of foil-coated metal strips or sheets for the production of cans or similar containers
DE872866C (en) * 1941-04-23 1953-04-09 Plax Corp Method and device for deforming organic, plastic plastics by pressing a strand out of a nozzle
DE975383C (en) * 1941-12-22 1961-11-16 Plax G M B H Deutsche Device for the production of foils from solvent-free, organic, thermoplastic plastics
DE974729C (en) * 1943-08-17 1961-05-31 Plax Ges Mit Beschraenkter Haf Method and device for the continuous production of biaxially oriented films from solvent-free organic polymerization products, in particular polystyrene
DE887262C (en) * 1951-05-03 1953-08-20 Langheck & Co Process for drying films made from regenerated cellulose
DE1102381B (en) * 1952-08-12 1961-03-16 Du Pont Device for running, regulated, continuous stretching and shrinking of web-shaped material, in particular thermoplastic plastic films
DE1194561B (en) * 1956-05-18 1965-06-10 Ici Ltd Process for the production of a biaxially oriented polyethylene terephthalate film with high strength in the longitudinal direction
DE1239840B (en) * 1956-12-20 1967-05-03 Du Pont Process for improving the physical properties of an essentially amorphous film web made of linear polyterephthalic acid esters
DE1180511B (en) * 1960-09-26 1964-10-29 Basf Ag Process for post-drying of film webs made of polyvinyl chloride and vinyl chloride copolymers produced on a film casting machine

Also Published As

Publication number Publication date
FR45266E (en) 1935-07-22
FR45798E (en) 1935-12-02
GB419900A (en) 1934-11-21
DE655014C (en) 1938-01-13
FR762838A (en) 1934-04-19
DE654757C (en) 1938-01-13
GB431619A (en) 1935-07-11
DE653250C (en) 1937-11-18
NL37479C (en) 1900-01-01

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