Butyl rubber is a copolymer resulting from the combination of two different polymers: isobutylene and isoprene. As a commercial product that demonstrates excellent gas impermeability and is very resistant. Invented in 1937, butyl rubber is used mainly as the inner lining of automobile tires or as the basic material for bicycle air chambers. Polymers: isobutylene and isoprene. A polymer is a chain of molecules, which are groups of microscopic atoms. What molecules constitute the raw material of the chain and how they are connected determine what physical qualities to the presentation of products. It may be soft, hard or rubber depending on these characteristics. Isobutylene is a polymer made from methyl and methylene molecules, which are in turn composed of carbon and hydrogen. Isoprene is made up of similar molecules that differ primarily in their physical layout. Reach the best and most reliable sellers and worldwide suppliers of Butyl rubber from the list given on eWorldTrade today.