DE530434C - Process for preserving rubber milk - Google Patents

Process for preserving rubber milk

Info

Publication number
DE530434C
DE530434C DEI28191D DEI0028191D DE530434C DE 530434 C DE530434 C DE 530434C DE I28191 D DEI28191 D DE I28191D DE I0028191 D DEI0028191 D DE I0028191D DE 530434 C DE530434 C DE 530434C
Authority
DE
Germany
Prior art keywords
rubber milk
milk
preserving rubber
preserving
rubber
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
DEI28191D
Other languages
German (de)
Inventor
Dr Friedrich Hopff
Dr Kurt H Meyer
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
Priority to NL21368D priority Critical patent/NL21368C/xx
Priority to NL25243D priority patent/NL25243C/xx
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI28191D priority patent/DE530434C/en
Priority to FR630983D priority patent/FR630983A/en
Priority to GB1336627A priority patent/GB271863A/en
Application granted granted Critical
Publication of DE530434C publication Critical patent/DE530434C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00—Treatment of rubber latex
    • C08C1/14—Coagulation
    • C08C1/15—Coagulation characterised by the coagulants used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3432—Six-membered rings
    • C08K5/3435—Piperidines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Confectionery (AREA)

Description

Verfahren zum Konservieren von Kautschukmilch Bekanntlich zeigt Kautschukmilch die Eigenschaft, bei längerem Stehen zu koagulieren. Durch Zusatz von Ammoniak kann man ihre Stabilität erhöhen; doch genügen derartige ammoniakhaltige Latexpräparate oft nicht allen Anforderungen, da sie nach einiger Zeit dennoch koagulieren. Man hat auch schon Pyridin und Hexamethylentetramin als Konservierungsmittel für Kautschukmilch empfohlen; doch ist ihre konservierende Wirkung noch geringer als die des Ammoniaks.Method of Preserving Rubber Milk It is known that rubber milk shows the property of coagulating when standing for a long time. By adding ammonia can to increase their stability; but such latex preparations containing ammonia are sufficient often not all requirements, as they still coagulate after a while. Man also has pyridine and hexamethylenetetramine as preservatives for rubber milk recommended; but its preservative effect is even less than that of ammonia.

Es wurde nun gefunden, daß man die Kautschukmilch wesentlich besser gegen das Koagulieren schützen kann, wenn man ihr geringe Mengen von wasserlöslichen aliphatischen, hydroaromatischen oder aromatischen Aminen einschließlich des Piperidins zusetzt. Schon durch Zusatz geringer Mengen dieser Stoffe erreicht man eine bedeutend größere Haltbarkeit des Milchsaftes als bei Verwendung von Ammoniak. Als geeignete Zusatzstoffe seien beispielsweise genannt Mo;no-, Di- oder Trialkylamine, Cyclohexylamin, Benzylamin, Piperidin und dessen Alkylderivate, Trioxäthylamin u. dgl. Auch Gemische dieser Stoffe sind verwendbar, und man kann der Kautschukmilch auch Gemische von Ammoniak und anderen Stabilisatoren mit den genannten Stoffen zusetzen.It has now been found that the rubber milk is much better Can protect against coagulation if you give it small amounts of water-soluble aliphatic, hydroaromatic or aromatic amines including piperidine clogs. A significant amount can be achieved by adding small amounts of these substances longer shelf life of the milky juice than when using ammonia. As suitable Additives may be mentioned, for example, mono-, di- or trialkylamines, cyclohexylamine, Benzylamine, piperidine and its alkyl derivatives, trioxethylamine and the like, also mixtures these substances can be used, and mixtures of rubber milk can also be used Add ammonia and other stabilizers with the substances mentioned.

Man hat zwar bereits bei der Vulkanisation von Kautschukmilch, also bei der Einwirkung von Schwefel, durch Zusatz von anorganischen oder organischen Basen die Koagulation der Kautschukmilch zu verhindern versucht, und man hat auch schon Kautschukmilch in Gegenwart von Schutzkolloiden eingedampft, wobei noch Alkali oder eine organische Base zugesetzt wurde. Man kann hieraus jedoch nicht ohne weiteres den Schluß ziehen, daß man bereits bei Anwendung der gemäß der vorliegenden Erfindung zu verwendenden speziellen wasserlöslichen Amine die Koagulation der Kautschukmilch selbst, z. B. auf dem Transport oder beim Lagern, weitgehendst verhindern und so der Kautschukmilch eine nahezu unbegrenzte Haltbarkeit geben kann.One already has the vulcanization of rubber milk, so when exposed to sulfur, due to the addition of inorganic or organic Bases tried to prevent the rubber milk from coagulating, and so did one already evaporated rubber milk in the presence of protective colloids, with still alkali or an organic base was added. One cannot, however, easily get out of this draw the conclusion that one is already using the according to the present invention Special water-soluble amines to be used prevent the coagulation of rubber milk itself, e.g. B. on transport or storage, largely prevent and so the rubber milk can give an almost unlimited shelf life.

Beispiel roo Gewichtsteile Kautschukmilch werden mit r Gewichtsteil 331/sprozentiger wäßriger Methylaminlösung versetzt. Die Mischung zeigt nach mehrwöchigem Stehen nicht die geringste Koagulation. Statt des Methylamins kann man mit dem gleichen Erfolg auch andere aliphatische Amine, wie Äthylamin, Diäthylamin, Propylamin, Butyl- und Isobutylamin usw., verwenden.Example roo parts by weight of rubber milk are r part by weight 331 / percent aqueous methylamine solution was added. The mixture shows after several weeks Are not the slightest coagulation. Instead of the methylamine you can use the same Other aliphatic amines, such as ethylamine, diethylamine, propylamine, butyl and isobutylamine, etc., use.

Claims (1)

PATENTANSPRUCH: Verfahren zum Konservieren von Kautschulmilch, dadurch gekennzeichnet, daß man dieser wasserlösliche aliphatische, hydroaromatische oder aromatische Amine einschließlich des Piperidins in geringer Menge zusetzt.PATENT CLAIM: Process for preserving chewing milk, thereby characterized in that one of these water-soluble aliphatic, hydroaromatic or aromatic amines including piperidine added in small amounts.
DEI28191D 1926-05-28 1926-05-28 Process for preserving rubber milk Expired DE530434C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL21368D NL21368C (en) 1926-05-28
NL25243D NL25243C (en) 1926-05-28
DEI28191D DE530434C (en) 1926-05-28 1926-05-28 Process for preserving rubber milk
FR630983D FR630983A (en) 1926-05-28 1927-03-14 Process for the conservation and application of latex
GB1336627A GB271863A (en) 1926-05-28 1927-05-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI28191D DE530434C (en) 1926-05-28 1926-05-28 Process for preserving rubber milk

Publications (1)

Publication Number Publication Date
DE530434C true DE530434C (en) 1931-07-29

Family

ID=7186970

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI28191D Expired DE530434C (en) 1926-05-28 1926-05-28 Process for preserving rubber milk

Country Status (3)

Country Link
DE (1) DE530434C (en)
GB (1) GB271863A (en)
NL (1) NL21368C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755857C (en) * 1931-05-08 1951-12-06 B B Chemical Co Process for the production of rubber milk preserved with ammonia
GB2283747B (en) * 1993-11-09 1998-03-11 Rxd Corp Sdn Bhd Preservation and enhanced stabilisation of latex

Also Published As

Publication number Publication date
NL21368C (en)
GB271863A (en) 1928-06-28

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