Ways to Obtain Optimum Heat Resistance in Polyacrylate Elastomers

This paper reviews development work in optimizing the heat resistance of polyacrylate elastomers. An expansion of the range up to 400°F, from the present 325-350°F, is currently being explored with the evaluation of fillers, curing systems, and other compounding ingredients. Data are presented comparing soap-sulfur and ammonium-type curing systems, and also for different combinations of carbon black and reinforcing mineral fillers using a soap-sulfur curing system.