In 1963 Karl Ziegler and Giulio Natta shared the Nobel Prize in Chemistry for the development, in the 1950’s, of their eponymous catalysts for the production of stereoregular polymers from propylene. Their catalyst, an organoaluminum compound coupled with a transition metal, led to the development of synthetic rubbers with a structure closely resembling natural rubber.
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The Science of Natural Rubber
File:RubberSyn&Natural.png - Wikipedia
Natural Rubber: Structure and Function - Halcyon
Polymers, Free Full-Text
Operating Structure - Halcyon The world's leading rubber franchise
10.4: Rubber and Other Elastomers - Chemistry LibreTexts
Computational study of the interaction between natural rubber α
Halcyon Agri Ranked in the Top 3 Most Transparent Rubber