Tetra:hydro-anilino-ethyl-methyl-quinoline use in rubber - as stabiliser, esp. against thermal ageing

The use of 1,2,3,4-tetrahydro-4-anilino-3-ethyl-2- methylquinoline (I) as rubber additive is claimed. In an example a blend of 100 pts. smoked sheets, 40 pts. C black, 3 pts. aromatic plasticiser, 0.75 pt. paraffin, 1.5 pts. stearic acid, 5 pts. ZnO, 2.5 pts. S and 1 pt. benzothiazyl-2 -cyclohexylsu...

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Hauptverfasser:	SEGNITZ,.DR.,ADOLPH, PAULUS,.DR.,GERHARD, QUEINS,.DR.,HUBERTUS, SCHOEPPL,.DR.,HUBERT, REUTHER,.DR.,WOLFGANG
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The use of 1,2,3,4-tetrahydro-4-anilino-3-ethyl-2- methylquinoline (I) as rubber additive is claimed. In an example a blend of 100 pts. smoked sheets, 40 pts. C black, 3 pts. aromatic plasticiser, 0.75 pt. paraffin, 1.5 pts. stearic acid, 5 pts. ZnO, 2.5 pts. S and 1 pt. benzothiazyl-2 -cyclohexylsulphenamide was treated with no antioxidant or with 3 pts. phenyl-beta-naphthylamine, 2,2'-methylene-bis (4-methyl-6-tert.-butylphenol) (II), 2,2,4-trimethyl-1,2- dihydroquinoline or (I). (I) was generally about as effective as (II) and more effective in the Mooney scorch test. (I) is an excellent stabiliser, esp. against thermal ageing, and is readily available.