B. Hampton/Univ. of Neb. The soy compound, a sterol ester, is one of two plant-based compounds already used in margarines that prevent the body from absorbing cholesterol (SN: 5/30/98, p. 348).

Two practical tire compound examples (belt and apex) demonstrate the comprehensively balanced rubber performance with a resin system replaced with high sulfur loading. The introduction of the highly ...