Eastman marks 75 years for Crystex


AKRON—Eastman is celebrating the 75th anniversary of its Crystex insoluble sulfur, a longstanding additive in the tire and rubber industry.

Crystex was patented in 1944 with Stauffer Chemical Co., naming the product “No Crystals” and “Crystals-X” as an explanation of the product’s function, Eastman said. The brand grew over time and high thermal stability grades were added.

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