DE742820C - Process for preventing the edges from tearing in cut sheets of film-forming plastic masses - Google Patents

Process for preventing the edges from tearing in cut sheets of film-forming plastic masses

Info

Publication number
DE742820C
DE742820C DESCH115406D DESC115406D DE742820C DE 742820 C DE742820 C DE 742820C DE SCH115406 D DESCH115406 D DE SCH115406D DE SC115406 D DESC115406 D DE SC115406D DE 742820 C DE742820 C DE 742820C
Authority
DE
Germany
Prior art keywords
edges
film
preventing
tearing
forming plastic
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
DESCH115406D
Other languages
German (de)
Inventor
Dr Gerhard Hinz
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.)
Bayer Pharma AG
Original Assignee
Schering AG
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 Schering AG filed Critical Schering AG
Priority to DESCH115406D priority Critical patent/DE742820C/en
Application granted granted Critical
Publication of DE742820C publication Critical patent/DE742820C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
    • C09B43/14—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/34—Means for performing other operations combined with cutting for applying a coating, such as butter, to cut product
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/02—Chemical treatment or coating of shaped articles made of macromolecular substances with solvents, e.g. swelling agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Description

Verfahren zum Verhüten des Einreißens der Kanten von geschnittenen Folien aus filmbildenden plastischen Massen Gegenstand des Hauptpatents 741 o17 ist ein Verfahren zum Verhüten. des Einreißens der Kanten von geschnittenen Folien aus filmbildenden plastischen Massen, das darin besteht, daß man diese Gebilde an ihren Kanten anschmilzt oder mit Löse- oder OOuellmitteln anlöst oder anquillt und dann vor oder nach der Verwendung verfestigt. Diese Arbeitsweise kann vorzugsweise durch Behandlung mit Lösungsmitteldämpfen vor sich gehen.Method of preventing the edges of cut ones from tearing Films from film-forming plastic masses the subject of the main patent 741 o17 is a method of contraception. of tearing the edges of cut foils of film-forming plastic masses, which consists in attaching these structures melts on their edges or dissolves or swells with solvents or oils and then solidified before or after use. This mode of operation can preferably by treatment with solvent vapors.

Gemäß der Erfindung kann die Wirkung dieser Behandlung noch erhöht werden, wenn man das Behandeln der Schnittkanten mit Lösungsmitteldämpfen im Vakuum oder nach einer Vakuumbehandlung, gegebenenfalls unter Temperaturerhöhung, vornimmt. Wahrscheinlich findet hierdurch ein Entfernen der an den Schneidekanten noch anhaftenden Luftschicht statt, so daß die Benetzung und das nachfolgende Anquellen wirkungsvoller vor sich gehen. Außerdem wird hierdurch eine größere Flüchtigkeit des verwendeten Löse-.oder Ouellmittels erreicht.According to the invention, the effect of this treatment can be increased if you are treating the cut edges with solvent vapors in a vacuum or after a vacuum treatment, if necessary with an increase in temperature. This probably removes those that are still adhering to the cutting edges A layer of air takes place, so that the wetting and the subsequent swelling are more effective going on. In addition, this increases the volatility of the used Solvent. Or Ouellmittel achieved.

Das neue Verfahren wird beispielsweise derart ausgeführt, daß man Folien, Filme, Bändchen u. dgl. z. B. aus Cellulosetriestern oder ähnlichen filmbildenden Stoffen bzw. deren Schnittkanten .in Gegenwart von Quell-bzw. Lösungsmitteln unter ein Vakuum beispielsweise von aoo bis 300 min Hg setzt, ohne daß diese Mittel mit den Folien usw. unmittelbar in Berührung stehen. Hierbei findet eine VerAampfimg der Lösungsmittel statt, .r.iie. in .dampfförmigem Zustande auf die zu behandelnden Gebilde einwirken. Das Verdampfen kann durchTemperaturerhöhung beschleunigt werden, was besonders bei höhersiedenden Lösungsmitteln in Betracht kommt. Beispiel 1 Ein fertig entwickelter Kinofilm aus . "'.. losetriacetat wird den Dämpfen von @-I lenchlorid einige Minuten imakuuni'a:us setzt. Danach wird der so behandelte Fifin' vorsichtig über Walzen geführt und mit v.-armer Luft getrocknet. Die Umlaufzahlen eines so behandelten Kinofilms haben sich gegenüber dein nicht behandelten Filrn um etwa `5o bis 7o019 erhöht.The new method is carried out, for example, by using foils, films, tapes and the like. B. from cellulose triesters or similar film-forming substances or their cut edges .in the presence of swelling or. Solvents under a vacuum, for example from aoo to 300 min Hg, without these agents being in direct contact with the foils, etc. In this case, the solvents evaporate, .r.iie. act in vapor form on the structures to be treated. Evaporation can be accelerated by increasing the temperature, which is particularly useful in the case of higher-boiling solvents. example 1 A fully developed movie from. "'.. losetriacetat is added to the vapors of @ -I lene chloride a few minutes imakuuni'a: us puts. Then the so treated Fifin 'is carefully guided over rollers and dried with v.-poor air. The circulation numbers of a film treated in this way have increased by about 50 to 7019 compared to the untreated film.

Beispiel Isolierbänder aus Cellulosetriacetat, wie rnan sie in der Elektrotechnik zuin Wickeln von Formspulenköpfen verwendet, werden in Scheiben gespult und der Einwirkung von lfeth-#-lenchloi-iddämpfen im Vakuum ausgesetzt. Die so behandelten Spulen werden ver-"rbeitet und die erhaltenen Formstücke hierriach gctrocl;net. Durch die Behandlung ist die Einreißfestigkeit der Bänder von etwa 2 kg auf 9 kg gestiegen.Example of insulating tapes made from cellulose triacetate, as described in Electrical engineering used in winding form coil heads are wound in disks and exposed to the action of lfeth - # - lenchloi-id vapors in a vacuum. Those treated like that Coils are processed and the molded pieces obtained are then dried. As a result of the treatment, the tear resistance of the tapes is about 2 kg to 9 kg gone up.

Der gleiche Erfolg wie in den obengenannten Beispielen wird durch Behandlung von Bändern au;t Pol«-inylverbindungen oder i41ischpolvinerisatoren, wie z. B. dem im Handel unter dein Namen Vinifol befind- d ien `f 4rodukt aus Polyvin3#Ichlorid, er- @e lit. Hierbei werden zweckmäßig Chloro- `m. Aceton oder ähnlich wirkende Lösungs- ttel verwendet. The same success as in the above examples is achieved by treating ribbons made of polynyl compounds or polvinerizers, such as. B. the one in the trade under your name Vinifol- d ien `f 4rodukt from Polyvin3 # Ichlorid, ER @e lit. In this case, chloro- `m. Acetone or similar acting solutions ttel used.

Claims (1)

PATENTANSPRUCH: Verfahren zum Verhüten des Einreißens der Kanten von geschnittenen Folien aus filmbildenden plastischen Massen nach Patent 741 017, dadurch gekennzeichnet, daß man das Behandeln der Schnittkanten mit Lösungsmitteldämpfen im 'Vakuum oder nach einer Vakuumbehandlung, gegebenenfalls unter Temperaturerhöhung, vornimmt. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren keine Druckschriften in Betracht gezogen worden.PATENT CLAIM: Method for preventing the edges of cut foils from film-forming plastic masses according to patent 741 017, thereby characterized by treating the cut edges with solvent vapors in a vacuum or after a vacuum treatment, if necessary with a temperature increase, undertakes. To distinguish the subject of the application from the state of the art, im No pamphlets have been taken into account in the issuing procedure.
DESCH115406D 1937-11-18 1938-04-01 Process for preventing the edges from tearing in cut sheets of film-forming plastic masses Expired DE742820C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH115406D DE742820C (en) 1937-11-18 1938-04-01 Process for preventing the edges from tearing in cut sheets of film-forming plastic masses

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE211312X 1937-11-18
DE310338X 1938-03-31
DESCH115406D DE742820C (en) 1937-11-18 1938-04-01 Process for preventing the edges from tearing in cut sheets of film-forming plastic masses

Publications (1)

Publication Number Publication Date
DE742820C true DE742820C (en) 1943-12-11

Family

ID=25760819

Family Applications (2)

Application Number Title Priority Date Filing Date
DESCH114288D Expired DE741017C (en) 1937-11-18 1937-11-19 Process for preventing the edges from tearing in cut sheets of film-forming plastic masses
DESCH115406D Expired DE742820C (en) 1937-11-18 1938-04-01 Process for preventing the edges from tearing in cut sheets of film-forming plastic masses

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DESCH114288D Expired DE741017C (en) 1937-11-18 1937-11-19 Process for preventing the edges from tearing in cut sheets of film-forming plastic masses

Country Status (5)

Country Link
BE (3) BE448010A (en)
CH (1) CH211312A (en)
DE (2) DE741017C (en)
FR (2) FR846232A (en)
NL (3) NL53054C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE917930C (en) * 1950-09-14 1954-09-16 Sueddeutsche Kabelwerke Zweign Process for the production of tapes or foils from porous thermoplastics
DE970842C (en) * 1951-03-29 1958-11-06 Siemens Ag Electric conductor with a superficially reinforced foam insulation
DE976493C (en) * 1951-07-20 1963-10-03 Norddeutsche Seekabelwerke Ag Porous thermoplastic films, tapes, threads or the like for insulating electrical conductors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
BE448417A (en)
NL53054C (en)
CH211312A (en) 1940-09-15
FR52610E (en) 1945-05-02
BE448010A (en)
BE431168A (en)
DE741017C (en) 1943-11-03
NL59276C (en)
FR846232A (en) 1939-09-12
NL59544C (en)

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