|  | 1931
Agreement between Standard Oil of New Jersey and I.G. Farben Industrie of Germany that provided ExxonMobil Chemical access to early work on synthetic rubber technology.
- Provided early association with Friedel Craft catalyzed iso-olefin polymerization technology, e.g., polyisobutylene.
- Made available all synthetic rubber polymerization technology developed in Germany from 1930 to 1936, e.g., Styrene-Butadiene Rubber and Nitrile-Butadiene Rubber and associated monomer production.
1937
Invention and patenting of butyl rubber by ExxonMobil Chemical.
- First demonstration of low unsaturation, synthetic rubber which possessed excellent air retention, oxidation and age resistance, as well as high damping properties.
- Significant contribution to the WWII effort. Provided U.S. with a vital synthetic rubber to help replace natural rubber that had been cut off by the Japanese.
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