Thiokol is a trade mark for various organic polysulfide polymers.[1] Thiokol polymers are used as an elastomer in seals and sealants. The distinction between the polymers first commercialized by the Thiokol Chemical Company and subsequent polysulfide materials is often unclear.[2]
The name Thiokol is a portmanteau of the Greek words for sulfur (Greek: θεῖον, romanized: theion) and glue (Greek: κόλλα, romanized: kolla)
KO
was invoked but never defined (see the help page).