DE333496C - Process for the manufacture of rubber-like products - Google Patents

Process for the manufacture of rubber-like products

Info

Publication number
DE333496C
DE333496C DE1918333496D DE333496DD DE333496C DE 333496 C DE333496 C DE 333496C DE 1918333496 D DE1918333496 D DE 1918333496D DE 333496D D DE333496D D DE 333496DD DE 333496 C DE333496 C DE 333496C
Authority
DE
Germany
Prior art keywords
products
rubber
manufacture
compounds
oxidation
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
DE1918333496D
Other languages
German (de)
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of DE333496C publication Critical patent/DE333496C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hydrogenated Pyridines (AREA)

Description

Verfahren zur Herstellung von kautschukartigen Produkten. Durch das Patent 330741 und den Zusatz 332305 ist ein Verfahren zur Verhinderung der Oxydation synthetischer kautschukartiger Produkte geschützt, das dadurch gekennzeichnet ist, daß man diese mit aromatischen Hydroxyl- oder Nitroverbindungen behandelt. Auch zahlreiche andere Verbindungen, wie z. B. Piperidin, und seine Derivate, Dipiperidyl, piperidylditbiocarbaminsaures Piperidin, Piperidylharnstoff, Benzalpiperidin usw. sowie die als »Vulkazitea (G o t t l o b., Gummi-Ztg., Bd. 30, S. 326) bezeichneten Verbindungen, sind imstande, eine solche schützende Wirkung auszuüben.Process for the manufacture of rubber-like products. By the Patent 330741 and addendum 332305 is a method of preventing oxidation synthetic rubber-like products, which is characterized by that they are treated with aromatic hydroxyl or nitro compounds. Even numerous other compounds, such as B. piperidine, and its derivatives, dipiperidyl, piperidylditbiocarbamic acid piperidine, piperidylurea, benzalpiperidine, etc. as well as those referred to as »Vulkazitea (G o t t l o b., Gummi-Ztg., Vol. 30, p. 326) Compounds are able to exert such a protective effect.

Es wurde nun gefunden, daß man die genannten Schutzverbindungen im Falle der Polymerisation gemäß demVerfahren des Patentes 329676 mit praktisch gleichem Erfolg auch schon den zu polymerisierenden Kohlenwasserstoffen zusetzen kann. Auffallenderweise wird hierdurch der Polymerisationsverlauf nicht gestört oder sonst beeinfiußt. Der entstandene Kautschuk ist von vornherein homogen von dem Schutzkörper durchsetzt, so daß bei der Verarbeitung die Oxydation auf das denkbar geringste Maß herabgedrückt wird.It has now been found that, in the case of the polymerization according to the process of patent 329676, the protective compounds mentioned can also be added to the hydrocarbons to be polymerized with practically the same success. Strikingly, the course of the polymerization is not disturbed or otherwise influenced by this. The resulting rubber is homogeneously penetrated by the protective body from the outset, so that the oxidation is reduced to the lowest possible level during processing.

Beispiel. Zoo Gewichtsteile 2 # 3-Dimethylbutadien-i . 3 werden in einem geschlossenen Gefäß unter einer indifferenten Gasatmosphäre mit 2 Teilen alkalifrei gewaschenem, getrocknetem, gemäß Patent 287787 aus Butadien dargestelltem Natriumkohlensäurekautschuk und 2 Teilen Dipiperidyl etwa drei Wochen bei etwa 65 stehengelassen. Nach dieser Zeit ist das ganze Gefäß von einer weißen schwammigen Masse erfüllt. Bei niedrigerer Temperatur erleidet die Reaktion eine entsprechende Verzögerung.Example. Zoo parts by weight 2 # 3-dimethylbutadiene-i. 3 are in a closed vessel under an inert gas atmosphere with 2 parts alkali-free washed, dried sodium carbonic acid rubber prepared from butadiene according to patent 287787 and 2 parts of dipiperidyl left at about 65 for about three weeks. After this Time the whole vessel is filled with a white, spongy mass. At lower Temperature, the reaction suffers a corresponding delay.

An Stelle des Dipiperidyls können auch aromatische Hydroxyl- oderNitroverbindungen, wie z. B. ß-Naphthol oder Nitronaphthalin oder andere die Oxydation von kautschukartigen Produkten verhindernde Verbindungen zugefügt werden.Instead of the dipiperidyl, aromatic hydroxyl or nitro compounds, such as B. ß-naphthol or nitronaphthalene or other the oxidation of rubbery Preventing compounds are added to products.

Claims (1)

PATENTANSPRUCH: Besondere Ausführungsform des durch Patent 32g676 geschützten Verfahrens zur Herstellung von kautschukartigen Produkten;- dadurch gekennzeichnet, daß man die Polymerisation in Gegenwart von aromatischen - Hydroxyl- oder Nitroverbindungen oder anderen die" Oxydation synthetischer kautschukartiger Produkte verhindernden Verbindungen ausführt. PATENT CLAIM: Special embodiment of the process for the production of rubber-like products protected by patent 32g676 - characterized in that the polymerization is carried out in the presence of aromatic - hydroxyl or nitro compounds or other compounds which prevent the "oxidation of synthetic rubber-like products.
DE1918333496D 1918-08-22 1918-08-22 Process for the manufacture of rubber-like products Expired DE333496C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE333496T 1918-08-22

Publications (1)

Publication Number Publication Date
DE333496C true DE333496C (en) 1921-02-28

Family

ID=6210192

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1918329676D Expired DE329676C (en) 1918-08-22 1918-05-04 Process for the manufacture of rubber-like products
DE1918333496D Expired DE333496C (en) 1918-08-22 1918-08-22 Process for the manufacture of rubber-like products

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1918329676D Expired DE329676C (en) 1918-08-22 1918-05-04 Process for the manufacture of rubber-like products

Country Status (1)

Country Link
DE (2) DE329676C (en)

Also Published As

Publication number Publication date
DE329676C (en) 1920-11-23

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