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American inventor of synthetic rubber and founder of Thiokol corp. (1892–1965) From Wikipedia, the free encyclopedia
Dr. Joseph Cecil Patrick (August 28, 1892 – April 12, 1965) invented Thiokol, America's first synthetic rubber in the early 1920s.[1] While seeking a formulation for automotive antifreeze, he attempted to hydrolyze ethylene dichloride with sodium polysulfide. In doing so, he produced a brown, insoluble gum that later became known as Thiokol.[2][3] He solved commercial production problems by inventing the suspension polymerization process, and solved compounding problems by degrading high molecular weight polymer to a low molecular weight liquid polymer. This material is one of the principal binders for rocket propellant.[4] Patrick's most cited research publication treated the subject of high molecular weight polymers.[5]
Patrick was the 1958 recipient of the Charles Goodyear Medal.[6]
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