A procedure for the manufacture of a football basket (Machine-translation by Google Translate, not legally binding)

摘要

Process to obtain a certain characteristics in a soccer football. A liquid mixture of polyalcohol, esocianate and a tertiary amino catalyst is injected in the bladder at 100º c, which hards in a few seconds, becoming a foam ball; this operation is carried out with the bladder placed on the leather and influenced a little to adjust the leather. Football-room balls. (Machine-translation by Google Translate, not legally binding)