554,338. Dithiocarbamate compounds. MONSANTO CHEMICAL CO. Oct. 27, 1941, No. 13816. Convention date, Nov. 6, 1940. [Class 2 (iii)] [Also in Group V] Vulcanization accelerators for rubber consist of the product of oxidative condensation of a. dithiocarbamate derived from a secondary amine with a primary amine. The compounds have the general formula:- where R, R' are alkyl, aryl or alicyclic groups or represent groups which form part of a closed ring structure, X is hydrogen and Y is univalent organic group. The secondary amines used for forming the thiocarbamate may be morpholine, piperidine dimethylamine, hexamethyleneimine, dibenzylamine, methylcyclohexylamine, dibutyl amine, diamylamine, dipropylamine, diethylamine and diphenylamine. The primary amines for reaction with the thiocarbamate may be n-butyl, n-amyl-, isobutyl, allyl- or benzylamine, cyclohexylamine, ethylenediamine, pethylcyclohexylamine, hexahydrobenzylamine or diphenylguanidine. The Specification as open to inspection under Sect. 91 describes also the use as vulcanization accelerators of the products of the oxidative condensation of a dithiocarbamate derived from a secondary amine with a secondary amine or with a cyclic amine containing a hydrogen atom on the cyclic nitrogen atom such as di-methyl, di-ethyl, di-propyl, di-n-butyl, di-isobutyl, di-isoamyl, or di-benzyl amine, piperidine or morpholine. The compounds may also be formed by reacting a stable N-halogen derivative of a secondary amine with a salt of dithiocarbamic acid. This subject-matter does not appear in the Specification as accepted.