Abstract
Abstract 1. The study of the effect of the combined use of mercaptobenzothiazole and methylene-aniline is based on its eutectic curve. 2. These two accelerators do not form a molecular compound on mixing, and they have only one eutectic point. The eutectic mixture gave a stronger accelerating action than did either of the ingredients alone, vulcanization proceeded smoothly, and the products were superior. 3. The scorching effect increased with increase in the proportion of mercaptobenzothiazole, but there was no evidence that the eutectic mixture gave any increased scorching. In general, the scorching effect was less when these two accelerators were used in combined form.
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