1988-02-01

A New Polyacrylic Elastomer Cure System for Automatic Transmission Fluid (ATF) Hose Application 880028

This paper presents the development of a new isocyanuric acid (ICA) non-post cure vulcanizing system for polyacrylic elastomers which contain epoxy groups as cure sites and their application for ATF Hose.
The ICA-based cure system consists of isocyanuric acid with an onium salt accelerater and a urea derivative retarder. This cure system exhibits good processability during mixing, good storage stability of the mixed stock and good steam cure properties.
The vulcanizates exhibit good physical properties, excellent compression set without post cure, hot water resistance, low metal corrosion and ATF resistance, without sacrificing the distinct advantages of a polyacrylic elastomer. The very good characteristics obtained with this cure system for polyacrylic elastomers make them ideally suited for ATF hose.

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