DE577731C - Process for the production of rubber-like compositions - Google Patents

Process for the production of rubber-like compositions

Info

Publication number
DE577731C
DE577731C DEI35438D DEI0035438D DE577731C DE 577731 C DE577731 C DE 577731C DE I35438 D DEI35438 D DE I35438D DE I0035438 D DEI0035438 D DE I0035438D DE 577731 C DE577731 C DE 577731C
Authority
DE
Germany
Prior art keywords
rubber
production
parts
compositions
emulsion
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
DEI35438D
Other languages
German (de)
Inventor
Dr Claus Heuck
Dr Hans Tochtermann
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI35438D priority Critical patent/DE577731C/en
Priority to CH147067D priority patent/CH147067A/en
Application granted granted Critical
Publication of DE577731C publication Critical patent/DE577731C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • 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
    • C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Description

Verfahren zur Herstellung kautschukartiger Massen Bekanntlich läßt sich Kautschuk durch Zusatz von Konservierungsmitteln oder Alterungsschutzmitteln, unter anderem von Aldol-«-naphthylamin oder anderen Kondensationsprodukten des Acetaldehyds mit aliphatischen oder aromatischen Aminen, lagerbeständig und widerstandsfähig . gegen die Einwirkung von Licht und Wärme machen.Process for the production of rubber-like compositions is known to be possible rubber by adding preservatives or anti-aging agents, including aldol - «- naphthylamine or other condensation products of acetaldehyde with aliphatic or aromatic amines, storage-stable and resistant . against exposure to light and heat.

Es wurde nun gefunden; daß man wertvolle kautschukartige Massen von besonders guter Lagerbeständigkeit erhalten kann, wenn man einen aus nicht unzersetzt destillierbaren Polymerisationsprodukten von Butadienkohlenwasserstoffen hergestellten künstlichen Latex vor oder während der Koagulation mit einem Alterungssrhutzmittel in emulgnerter Form versetzt und darauf koaguliert. Das Alterungsschutzmittel ist nach erfolgter Koagulation in dem fertigen Produkt in überaus feiner und gleichmäßiger Verteilung vorhanden.It has now been found; that one valuable rubber-like masses of particularly good shelf life can be obtained if one does not decompose distillable polymerization products of butadiene hydrocarbons produced artificial latex before or during coagulation with an anti-aging agent in emulsified form and coagulated on it. The anti-aging agent is after coagulation has taken place in the finished product in an extremely fine and uniform manner Distribution available.

Das Verfahren läßt sich besonders vorteilhaft unter Anwendung der gemäß dem Verfahren der Patentschrift 558 89o hergestellten latexähnlichen -Produkten aus Butadien oder dessen Homologen ausführen.The method can be particularly advantageous using the latex-like products manufactured according to the process of patent specification 558 89o run from butadiene or its homologues.

Beispiel Zu einem künstlichen Latex, der durch Polymerisation einer nach dem Verfahren der Patentschrift 558 890 aus Zoo Teilen Isopren, i 8 Teilen Öl- oder Stearinsäure, 17,5 Teilen io%igen Ammoniaks und 340 Teilen Wasser hergestellten Emulsion erhalten wurde, wird eine Emulsion von 5 Teilen Aldola-naphthylamin in ioo Teilen Wasser hinzugefügt. Man erhält nach der Koagulation ein kautschukartiges Produkt von großer Haltbarkeit, das auch nach längerer Lagerung vollkommen unverändert bleibt.EXAMPLE An emulsion is obtained from an artificial latex obtained by polymerizing an emulsion prepared by the process of patent specification 558 890 from zoo parts of isoprene, 18 parts of oleic or stearic acid, 17.5 parts of 10% ammonia and 340 parts of water 5 parts of aldola naphthylamine in 100 parts of water are added. After coagulation, a rubber-like product is obtained which has a long shelf life and which remains completely unchanged even after prolonged storage.

Die letztgenannte Emulsion wird durch Eintragen einer in der Wärme hergestellten alkoholischen Lösung des Aldol=a-naphthylamins in Wasser gewonnen. Eine gut haltbare Emulsion kann man auch in der Kälte durch Verrühren einer Lösung von i Teil Aldol-a-naphthylamin in 5 Teilen Milchsäureäthylester mit 15 Teilen Wasser erhalten. Vorteilhaft setzt man der Emulsion des Konservierungsmittels noch die Oberflächenspannung erniedrigende Mittel und geeignete Schutzkolloide zu.The last-mentioned emulsion is obtained by introducing an alcoholic solution of the aldol = a-naphthylamine in water which has been prepared with heat. A well-preserved emulsion can also be obtained in the cold by stirring a solution of 1 part of aldol-a-naphthylamine in 5 parts of ethyl lactate with 15 parts of water. It is advantageous to add agents which lower the surface tension and suitable protective colloids to the emulsion of the preservative.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von kautschukartigen Massen, dadurch gekennzeichnet, daß man einen aus nicht unzersetzt destillierbaren Polymerisationsprodukten von Butadienkohlenwasserstofen hergestellten künstlichen Latex vor oder während der Koagulation mit einem Alterungsschutzmittel in @emulgierter Form versetzt und darauf koaguliert.PATENT CLAIM: Process for the production of rubber-like masses, characterized in that one is obtained from polymerization products which cannot be distilled without decomposition Artificial latex made by butadiene hydrocarbons before or during the coagulation with an anti-aging agent in @emulsified form and coagulated on it.
DEI35438D 1928-09-05 1928-09-06 Process for the production of rubber-like compositions Expired DE577731C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEI35438D DE577731C (en) 1928-09-05 1928-09-06 Process for the production of rubber-like compositions
CH147067D CH147067A (en) 1928-09-06 1929-08-27 Method for the representation of a homogeneous mass.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1814420X 1928-09-05
DEI35438D DE577731C (en) 1928-09-05 1928-09-06 Process for the production of rubber-like compositions

Publications (1)

Publication Number Publication Date
DE577731C true DE577731C (en) 1933-06-03

Family

ID=25981520

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI35438D Expired DE577731C (en) 1928-09-05 1928-09-06 Process for the production of rubber-like compositions

Country Status (1)

Country Link
DE (1) DE577731C (en)

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