Super Ball

A Super Ball or Superball is a toybouncy ball based on a type of synthetic rubber invented in 1964 by chemist . It is an extremely elasticball made of Zectron, which contains the synthetic polymerpolybutadiene as well as hydrated silica, zinc oxide, stearic acid, and other ingredients. This compound is vulcanized with sulfur at a temperature of 165 °C (329 °F) and formed at a pressure of 3,500 psi (24 MPa). The resulting Super Ball has a very high coefficient of restitution, and if dropped from shoulder level on a hard surface, a Super Ball bounces nearly all the way back; thrown down onto a hard surface by an average adult, it can fly over a three-story building.