DE653250C - Manufacture of flexible straps or threads made of polystyrene or the like. - Google Patents

Manufacture of flexible straps or threads made of polystyrene or the like.

Info

Publication number
DE653250C
DE653250C DEN34343D DEN0034343D DE653250C DE 653250 C DE653250 C DE 653250C DE N34343 D DEN34343 D DE N34343D DE N0034343 D DEN0034343 D DE N0034343D DE 653250 C DE653250 C DE 653250C
Authority
DE
Germany
Prior art keywords
polystyrene
manufacture
nozzle
threads
threads made
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
DEN34343D
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
Priority to NL37479D priority Critical patent/NL37479C/xx
Priority to DEN39739D priority patent/DE655014C/en
Application filed by Norddeutsche Seekabelwerke GmbH filed Critical Norddeutsche Seekabelwerke GmbH
Priority to DEN34343D priority patent/DE653250C/en
Priority to DEN35516D priority patent/DE654299C/en
Priority to GB28553/33A priority patent/GB419900A/en
Priority to FR762838D priority patent/FR762838A/en
Priority to DEN36008D priority patent/DE654757C/en
Priority to FR45266D priority patent/FR45266E/en
Priority to GB30655/34A priority patent/GB431619A/en
Priority to FR45798D priority patent/FR45798E/en
Application granted granted Critical
Publication of DE653250C publication Critical patent/DE653250C/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Organic Insulating Materials (AREA)
  • Insulating Bodies (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)

Description

Herstellung von biegsamen Bändern oder Fäden aus Polystyrol o. dgl. Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von biegsamen Bändern oder Fäden aus Polystyrol oder ähnlichen Kunststoffen.Manufacture of flexible strips or threads made of polystyrene or the like. The invention relates to a method of making flexible tapes or threads made of polystyrene or similar plastics.

Polvstyrol ist ein an sich glasklarer unhygroskopischer Kunststoff, der keine plastischen, sondern spröde Eigenschaften besitzt. Wegen seiner guten elektrischen Eigenschaften besteht im Hinblick auf die 'N,"erwendung bei elektrischen Kabeln der 1Vunsch, Polystyrol zu biegsamen Bändern oder Fäden zu verarbeiten. Insbesondere für Seekabel und Kabel mit Trägerfrequenzbetrieb ist es wichtig, einen Stoff zu besitzen, der i. gute elektrische Werte hat, 2. bei der für die Aufpressung des Isoliermantels erforderlichen Temperatur von etwa ioo bis 1 1o° C nicht oder nur wenig deformiert wird, 3. große Härte besitzt und 4. genügend biegsam ist, um auf den Leiter 'aufgesponnen werden zu können.Polvstyrene is a crystal-clear, unshygroscopic plastic, which has no plastic, but brittle properties. Because of its good electrical properties exist in terms of 'N' use in electrical Cables are the desire to process polystyrene into flexible strips or threads. In particular for submarine cables and cables with carrier frequency operation it is important to use a substance own who i. has good electrical values, 2. in the case of the Insulating jacket required temperature of about 100 to 1 1o ° C not or only is little deformed, 3. has great hardness and 4. is sufficiently flexible to take up the ladder 'to be spun.

Versuche haben ergeben, daß das einfache Ausspritzen des Polystyrols aus einer Düse nicht zu mechanisch brauchbaren Fäden oder Bändern führt. Die so hergestellten Bänder sind vielmehr spröde wie das Ausgangsinaterial und brechen schon bei verhältnismäßig geringer Beanspruchung. Es wurde nun gefunden, daß rnan aus Polystyrol oder anderen Polymerisationsprodukten von Arylolefinen Bänder oder Fäden mit den gewünschten Eigenschaften herstellen kann, wenn man das Material bei erhöhter Temperatur aus einer Düse ausspritzt und die Fäden oder Bänder so auszieht, daß die Auszugsgeschwindigkeit größer ist als die Austrittsgeschwindigkeit aus der Düse. Die dabei entstehenden Gebilde haben einen geringeren Querschnitt als die Düse, aus der sie gezogen wurden; das Material erleidet eine Gefügeänderung, auf die die veränderten mechanischen Eigenschaften zurückzuführen sind. Die günstigsten mechanischen Eigenschaften weisen - wie Versuche ergeben haben -ein solcher Faden oder ein solches Band auf, deren Durchmesser infolge der erhöhten Auszugsgeschwindigkeit auf etwa den dritten Teil des Düsendurchmessers verringert ist. Es wurde weiter gefuhden, daß insbesondere bei Verarbeitung von Polystyrol diese mechanischen Eigenschaften am besten dann erreicht werden, wenn man die Temperatur des Materials auf i4o bis i55° hält. Ein bei diesen Versuchsbedingungen hergestellter Faden ist so biegsam, daß er bei normaler Temperatur, ohne zu brechen, .um' seinen eigenen Durchmesser gewickelt werden kann. Auch bei der Herstellung von Bändern haben sich die oben beschriebenen Versuchsbedingungen als die günstigsten erwiesen. Die Bänder können von vornherein in der gewünschten -Breite hergestellt werden; sie körnen aber auch nachträglich aus _ einem, breiteren Bande geschnittenTests have shown that the simple ejection of the polystyrene does not lead to mechanically usable threads or ribbons from a nozzle. The so Rather, the tapes produced are as brittle as the starting material and break even with relatively little use. It has now been found that rnan from polystyrene or other polymerization products of aryl olefins tapes or You can produce threads with the desired properties if you use the material at jets out of a nozzle at an elevated temperature and pulls out the threads or ribbons in such a way that that the extraction speed is greater than the exit speed from the Jet. The resulting structures have a smaller cross-section than that Nozzle from which they were drawn; the material suffers a structural change which can be attributed to the changed mechanical properties. The cheapest Such a thread has mechanical properties - as tests have shown or such a tape, the diameter of which is due to the increased extraction speed is reduced to about the third part of the nozzle diameter. It got on felt that these mechanical properties, especially when processing polystyrene best achieved if you set the temperature of the material to i4o bis Holds i55 °. A thread produced under these test conditions is so flexible that that at normal temperature, without breaking, it is about its own diameter can be wrapped. Even in the manufacture of ribbons, the above have proven themselves The test conditions described proved to be the most favorable. the Ribbons can be produced in the desired width from the start; she but can also be cut from a wider band at a later date

Claims (1)

PATENTANSPRUCH :.; Verfahren zum Herstellen "vbiegsamen Bändern oder Fädefi'zs Polymerisationsprodukten von Arylolefinen, z. B. Polystyrol, insbesondere für Zwecke der Kabelisolation, durch Ausspritzen des erwärmten Stoffes aus einer Düse, dad14rch gekennzeichnet, daß der Stoff auf hohe Temperatur, z. B. rq.o bis i55°, erhitzt und der aus der Düse austretende Faden oder das Band ausgezogen wirfl, etwa derart, daB der Querschnitt des Fadens oder des Bandes auf die Hälfte des Düsenquerschnittes verringert wird. PATENT CLAIM :.; Process for the production of flexible tapes or threads. Polymerization products of aryl olefins, e.g. polystyrene, in particular for cable insulation purposes, by ejecting the heated material from a nozzle, characterized in that the material is heated to a high temperature, e.g. rq .o to 155 °, and the thread or tape emerging from the nozzle is pulled out, approximately in such a way that the cross-section of the thread or tape is reduced to half the cross-section of the nozzle.
DEN34343D 1932-10-24 1932-10-24 Manufacture of flexible straps or threads made of polystyrene or the like. Expired DE653250C (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL37479D NL37479C (en) 1932-10-24
DEN39739D DE655014C (en) 1932-10-24 Method and device for the production of flexible tapes
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.
GB28553/33A GB419900A (en) 1932-10-24 1933-10-16 Improvements in and relating to the manufacture of flexible bands, threads and foilsof polystyrol or like artificial substances
FR762838D FR762838A (en) 1932-10-24 1933-10-23 Process for the manufacture of tapes, threads, sheets and flexible tubes of polystyrol or similar artificial materials
DEN36008D DE654757C (en) 1932-10-24 1933-11-26 Manufacture of flexible tapes, foils or tubes made of polystyrene or the like.
FR45266D FR45266E (en) 1932-10-24 1934-09-22 Process for the manufacture of tapes, threads, sheets and flexible tubes of polystyrol or similar artificial materials
GB30655/34A GB431619A (en) 1932-10-24 1934-10-25 Improvements in and relating to the manufacture of flexible bands, foils or tubes
FR45798D FR45798E (en) 1932-10-24 1935-01-19 Process for the manufacture of tapes, threads, sheets and flexible tubes of polystyrol or similar artificial materials

Applications Claiming Priority (1)

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.

Publications (1)

Publication Number Publication Date
DE653250C true DE653250C (en) 1937-11-18

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 (1)

Application Number Title Priority Date Filing Date
DEN39739D Expired DE655014C (en) 1932-10-24 Method and device for the production of flexible tapes

Family Applications After (2)

Application Number Title Priority Date Filing Date
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.

Country Status (4)

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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750841C (en) * 1941-06-25 1945-01-30 Process for the production of panels from filler-containing polyisobutylene
DE767619C (en) * 1938-12-23 1952-11-24 Ig Farbenindustrie Ag Sieve mesh or mesh
DE856689C (en) * 1940-06-24 1952-11-24 Gerhard Aschenbrenner Process for the production of artificial threads
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
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
DE1125144B (en) * 1955-10-29 1962-03-08 Hoechst Ag Process for solidifying plastic pipes
DE1215908B (en) * 1952-05-12 1966-05-05 Du Pont Process for improving the physical properties of films made of polyethylene terephthalate

Families Citing this family (34)

* 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
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
CA427868A (en) * 1941-04-23 1945-05-29 Stanley Jesionowski Raymond Plastic extrusion method and apparatus
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
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
DE887262C (en) * 1951-05-03 1953-08-20 Langheck & Co Process for drying films made from regenerated cellulose
BE500098A (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
DE968346C (en) * 1952-06-26 1958-02-06 Huckfeldt & Thorlichen Process for the production of curved synthetic fibers
BE522077A (en) * 1952-08-12
US2697248A (en) * 1952-12-22 1954-12-21 Dow Chemical Co Film stretching device
US2718658A (en) * 1952-12-22 1955-09-27 Dow Chemical Co Film stretching device
US2770007A (en) * 1952-12-22 1956-11-13 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.
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
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
FR1188651A (en) * 1956-12-20 1959-09-24 Du Pont Linear polyterephthalate film and its manufacturing process
US3052924A (en) * 1959-09-28 1962-09-11 Monsanto Chemicals Process for the manufacture of biaxially oriented crystalline polystyrene
BE595343A (en) * 1960-09-26 1900-01-01
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 (7)

* 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
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
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
DE1215908B (en) * 1952-05-12 1966-05-05 Du Pont Process for improving the physical properties of films made of polyethylene terephthalate
DE1125144B (en) * 1955-10-29 1962-03-08 Hoechst Ag Process for solidifying plastic pipes

Also Published As

Publication number Publication date
DE654299C (en) 1937-12-18
GB419900A (en) 1934-11-21
FR45266E (en) 1935-07-22
FR762838A (en) 1934-04-19
DE654757C (en) 1938-01-13
NL37479C (en) 1900-01-01
FR45798E (en) 1935-12-02
DE655014C (en) 1938-01-13
GB431619A (en) 1935-07-11

Similar Documents

Publication Publication Date Title
DE653250C (en) Manufacture of flexible straps or threads made of polystyrene or the like.
DE1660354A1 (en) Polypropylene composite threads and process for their manufacture
DE1629830A1 (en) Process for the production of plastic straps reinforced in the longitudinal direction by means of textile threads
DE1201991C2 (en) PRODUCTION OF GRANULATES CONTAINING GLASS FIBER FROM HIGH MOLECULAR, THERMOPLASTIC POLYCARBONATES
DE1504464A1 (en) Process for the production of foils from thermoplastics
DE2104817B2 (en) PRESSURE-SENSITIVE ADHESIVE TAPE WITH A THERMOPLASTIC FILM AS A CARRIER
AT389642B (en) METHOD FOR PRODUCING A STRING STRING FOR BALL RACKETS, ESPECIALLY FOR TENNIS RACKETS
DE1113725B (en) Process for the production of a rubber-elastic silicone insulating tape
DE923332C (en) Process for plasticizing polymerized styrene
DE1629548B1 (en) Process for the production of transparent plates with embedded metal threads
DE2835517C3 (en) Process for the continuous production of plastic-coated optical glass fibers
AT145200B (en) Process for the production of molded articles (threads, tapes, foils, pipes, hoses and the like) from polymerization products of aryl olefins, for example polystyrene.
DE863959C (en) Process for the production of porous, dielectrically high quality insulation from thermoplastics
DE894407C (en) Foam strips or cores, in particular for insulating electrical lines and cables
DE863742C (en) Process for the production of a prepared insulating paper with good electrical properties
DE743607C (en) Process for the production of a coating made of high polymer polystyrene on wires, threads and the like. like
DE1504292B2 (en) INSULATING MATERIAL
DE679616C (en) Electric cable in which flexible elements consisting of interconnected pieces of insulation are wound or stranded around the individual conductors to form their insulation
DE744607C (en) Process for the production of a coating made of high polymer polystyrene on wires, threads and the like. like
DE2907777C2 (en) Method for manufacturing a ribbon cable
DE806872C (en) Process for the manufacture of electrical wound capacitors
DE936883C (en) Foam insulation
DE943257C (en) Process for the production of films, coverings, strips, tapes and the like. like
DE657680C (en) Process for the production of flexible moldings from polystyrene or other thermoplastically moldable plastics based on polyvinyl
DE1504813A1 (en) Process for the production of stretched thin, preferably less than 6 microns thick plastic strips for electrical capacitors