Butyl rubber ,a synthetic rubber,is a copolymer of isobutylene and isoprene.It is also called isobutylene-isoprene rubber.It is based on homopolymer of isobutylene that is polyisobutylene(C4H8)n.Butyl rubber was first produced by William Sparks and Robert
Butyl rubber: Butyl rubber is the copolymer of isobutylene and a small amount of isoprene. Also known as IIR. IIR stands for Isobutylene Isoprene Rubber. Details and properties of butyl rubber: First it got commercialized in 1943. The primary