ブチルゴム

noun

butyl rubber; isobutylene-isoprene rubber; IIR

A synthetic rubber made from isobutylene and a small amount of isoprene, known for low gas permeability. Used in inner tubes, sealants, and protective clothing.

from English butyl · from Dutch gom

• 自じ転てん車しゃのチューブにはブチルゴムがよく使つかわれている。

  Butyl rubber is often used for bicycle inner tubes.