Verfahren zum Vulkanisieren von AEthylen-Propylen-Dien-Terpolymeren und synergistisch wirkende Beschleuniger-Kombination hierfuer

摘要

1326073 Vulcanizing olefin copolymer rubbers RHEIN-CHEMIE RHEINAU GmbH 21 Aug 1970 [23 Aug 1969] 40309/70 Heading C3P Ethylene/propylene/diene terpolymers wherein the diene component comprises a norbornene compound are vulcanized with a sulphurcontaining vulcanizing agent in the presence of a synergistically acting combination of a thiazole accelerator and an amine salt of a dithiophosphate of formula wherein R and R1 are C 1-18 alkyl, cycloalkyl or aralkyl residues, X is a primary, secondary or tertiary monoto tetravalent amine of aliphatic, cycloaliphatic, aromatic, heterocyclic or mixed nature and n is basic equivalent of the amine. The terpolymer may be derived from 5-methylene-2-norbornene, a 5-alkenyl-2-norbornene, 2,5-norbornadiene or a 2-alkyl-2,5-norbornadiene. Conventional ingredients such as zinc oleate, carbon black, chalk, plasticizers, rape oil brown factice, zinc oxide, sulphur and tetramethyl thiuram disulphide may be present and examples describe the vulcanization of rubbers using 2-mercaptobenzothiazole, dibenzothiazolyl disulphide or N-cyclohexyl-2- benzothiazolesulphenamide and ethylene diamine salt of diisopropyl dithiophosphate, and using 2-mercaptobenzothiazole and propylamine salt of diisopropyl dithiophosphate, morpholine salt of diisopropyl dithiophosphate, pyridine salt of diisopropyl dithiophosphate, triethylamine salt of diisopropyl dithiophosphate, triethanolamine salt of diisopropyl dithiophosphate, aniline salt of diisopropyl dithiophosphate, p-phenylenediamine salt of diisopropyl dithiophosphate, coconut fatty amine salt of diisopropyl dithiophosphate, dicyclohexylamine salt of dibutyl dithiophosphate and ethylenediamine salt of diethyl dithiophosphate. Reference has been directed by the Comptroller to Specification 1,190,681.