DE501642C - Process for reducing the aging of artificial and natural rubbers - Google Patents

Process for reducing the aging of artificial and natural rubbers

Info

Publication number
DE501642C
DE501642C DEI35476D DEI0035476D DE501642C DE 501642 C DE501642 C DE 501642C DE I35476 D DEI35476 D DE I35476D DE I0035476 D DEI0035476 D DE I0035476D DE 501642 C DE501642 C DE 501642C
Authority
DE
Germany
Prior art keywords
aging
artificial
reducing
natural rubbers
indane
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
DEI35476D
Other languages
German (de)
Inventor
Dr Walter Kropp
Dr Leo Rosenthal
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 DEI35476D priority Critical patent/DE501642C/en
Application granted granted Critical
Publication of DE501642C publication Critical patent/DE501642C/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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates

Description

Verfahren zur Herabsetzung der Alterung von künstlichen und natürlichen Kautschukarten Es wurde gefunden, daß die Indanphenole, ihre Substitutionsprodukte und Salze, künstliche und natürliche Kautschuke in unvulkanisiertem und vulkanisiertem Zustand vor Alterung zu schüt7en vermögen. Im Sonnenlicht zeigen die Vulkanisate von Kautschukmischungen, die die genannten Produkte enthalten, keine Verfärbungen. Daher lassen sich die Indanphenole auch bei hellen und farbigen Qualitäten verwenden, im Gegensatz zu den meisten bekannten Alterungsschutzmitteln. Besonders wertvoll sind die Produkte auch, weil ihre Giftigkeit sehr gering ist. Eine vulkanisationsbeschleunigende Wirkung kommt den freien Indanphenolen nicht zu. In Wasser sind sie fast unlöslich, so daß man sie auch bei einer Vulkanisation mit offenen Dampf verwenden kann. Den Kautschukmischungen werden sie zweckmäßig in Mengen von I bis 3 °1o des Kautschulzs zugesetzt. Die Indanphenole lassen sich beispielsweise nach dem Verfahren des Patents :f99 825 gewinnen.Method of reducing the aging of artificial and natural Types of rubbers It has been found that the indane phenols, their substitution products and salts, artificial and natural rubbers in unvulcanized and vulcanized Able to protect the condition from aging. The vulcanizates show in sunlight no discoloration from rubber compounds containing the named products. Therefore, the indane phenols can also be used in light and colored grades, in contrast to most known anti-aging agents. Particularly valuable the products are also because their toxicity is very low. A vulcanization accelerator The free indane phenols have no effect. They are almost insoluble in water, so that they can also be used for vulcanization with open steam. The They are expediently used in rubber mixtures in amounts of 1 to 3 ° 1o of the Kautschulz added. The indane phenols can be, for example, according to the method of the patent : win f99 825.

Beispiel Eine Mischung von ioo Gewichtsteilen Stnoked Sheets, 36 Gewichtsteilen Gasruß. 28 Gewichtsteilen' Zinkweiß, I Gewichtsteil Dipheny1gttatt:i(lin, -. Gewichtsteilen Schwefel, 2,2 Gewichtsteilen Resorcylindan wurden 4o Minuten auf 31%2 Atmosphären geheizt.Example A mixture of 100 parts by weight of stnoked sheets, 36 parts by weight Carbon black. 28 parts by weight of zinc white, 1 part by weight of dipheny1gttatt: i (lin, -. Parts by weight Sulfur, 2.2 parts by weight resorcylindane were added to 31% 2 atmospheres for 40 minutes heated.

Das Vulkanisat zeigte folgende Zerreißwerte: Festigkeit Dehnung kg/qcm ungealtert ........... 199 594 nach künstlicher 5jähri- ger Alterung ...... 2o7 530 Die gleiche Mischung ohne Resorcylindan ergab bei der gleichen Heizung folgende Werte: Festigkeit Dehnung kg/qctn 11. ungealtert ........... 240 36o nach künstlicher 5jähri- ger Alterung ...... 145 3f)5 Verwendet man in der obigen Mischung an Stelle von Resorcy-lindan Indanphenol, so wurden bei einer Heizung von 55 -Minuten auf 31/., Atmosphären folgende Zahlen erhalten- Festigkeit Dehnung kg/qcm °h ungealtert ........... 224 58o nach künstlicher 5ähri- ger Alterung ...... 220 5o6 Ohne Schutzmittel ergab die Mischung bei dieser Heizung folgende Zahlen: Festigkeit Dehnung kg/qcm ° ungealtert ........... 233 Sao nach künstlicher 5jähri- ger Alterung ...... 107 270 An Stelle des Indanphenols kann man z. B. seine Hexamethylentetraminverbindung oder andere Indanphenole, wie Indany lkresol, verwenden, ebenso kann man die Produkte mit schon bekannten Alterungsmitteln mischen.The vulcanizate showed the following tear values: Strength elongation kg / qcm unaged ........... 199 594 after artificial 5 year ger aging ...... 2o7 53 0 The same mixture without resorcylindane gave the following values with the same heating: Strength elongation kg / qctn 11. unaged ........... 240 36o after artificial 5 year ger aging ...... 145 3f) 5 If indanphenol is used in the above mixture instead of resorcy-lindane, the following figures were obtained with heating from 55 minutes to 31 /., Atmospheres- Strength elongation kg / qcm ° h unaged ........... 224 58o after artificial 5-year ger aging ...... 220 5o6 Without a protective agent, the mixture with this heating gave the following figures: Strength elongation kg / qcm ° unaged ........... 233 Sao after artificial 5 year ger aging ...... 107 270 Instead of indanphenol you can, for. B. his hexamethylenetetramine compound or other indane phenols, such as indany lkresol, use, the products can also be mixed with known aging agents.

Claims (1)

PATENTAN SPRUCII Verfahren zur Herabsetzung der Alterung von künstlichen und natürlichen Kautschukarten, .dadurch -gekennzeichnet. daß man denselben Indanphenole, ihre Substitutionsprodukte oder Salze zusetzt.PATENTAN SPRUCII Method of Decreasing the Aging of Artificial and natural rubbers, identified by them. that the same indane phenols, adding their substitution products or salts.
DEI35476D 1928-09-11 1928-09-11 Process for reducing the aging of artificial and natural rubbers Expired DE501642C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI35476D DE501642C (en) 1928-09-11 1928-09-11 Process for reducing the aging of artificial and natural rubbers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI35476D DE501642C (en) 1928-09-11 1928-09-11 Process for reducing the aging of artificial and natural rubbers

Publications (1)

Publication Number Publication Date
DE501642C true DE501642C (en) 1930-07-03

Family

ID=7188998

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI35476D Expired DE501642C (en) 1928-09-11 1928-09-11 Process for reducing the aging of artificial and natural rubbers

Country Status (1)

Country Link
DE (1) DE501642C (en)

Similar Documents

Publication Publication Date Title
DE2604053B2 (en) Compounds based on chloroprene rubber that can be vulcanized in heat
DE596850C (en) Vulcanization accelerator
DE501642C (en) Process for reducing the aging of artificial and natural rubbers
DE557138C (en) Anti-aging agent for natural and synthetic rubber
DE898675C (en) Process for vulcanizing rubber
DE557043C (en) Process for the production of microporous rubber compounds
DE560395C (en) Preservative for natural and synthetic rubber
DE1062702B (en) Process for the preparation of Benzthiazolyl-2-sulfen- (2 ', 6'-dimethylmorpholiden)
DE1090850B (en) Process for protecting natural rubber against oxidation
DE461008C (en) Process for vulcanizing rubber
US1842989A (en) Mediums for inhibiting the perishing of artificial and natural varieties of rubber
DE589736C (en) Process for the production of objects and goods from rubber
AT165035B (en) Process for the sulfur-free vulcanization of synthetic rubber
DE712393C (en) Process for stabilizing plastic polymers of the halogen-2-butadienes (1,3)
DE572920C (en) Preservative for rubber and synthetic rubber-like compounds
AT128865B (en) Process for the vulcanization of artificial, rubber-like compounds.
DE723589C (en) Anti-aging agents
DE861924C (en) Process for improving the properties of masses produced from vulcanized rubber milk
AT133328B (en) Process for vulcanizing rubber.
DE512659C (en) Process to delay the deterioration or spoilage of rubber
DE562942C (en) Process for the preservation of rubber and rubber compounds
DE865736C (en) Production of dispersible sulfur
AT127809B (en) Anti-aging agents for natural and artificial rubbers.
DE543241C (en) Process for improving rubber milk concentrates
DE878849C (en) Stabilizer for synthetic rubber-like compounds