Editing Epoxy (section)

== History ==

Condensation of epoxides and amines was first reported and patented by [[Paul Schlack]] of Germany in 1934.<ref>Schlack, P. (1938) "Manufacture of amines of high molecular weight, which are rich in nitrogen". German Patent 676117, {{US Patent|2136928}}</ref> Claims of discovery of [[bisphenol-A]]-based epoxy resins include [[Pierre Castan]]<ref>{{cite patent |country= US |inventor= Castan, Pierre |assign= DeVoe&nbsp;&&nbsp;Raynolds |number= 2444333 |gdate= 1948-06-29 |title= Process for the manufacture of thermosetting synthetic resins by the polymerization of alkylene oxide derivatives }}</ref> in 1943. Castan's work was licensed by [[Ciba Specialty Chemicals|Ciba]], Ltd. of Switzerland, which went on to become one of the three major epoxy resin producers worldwide. In 1946, Sylvan Greenlee, working for the Devoe&nbsp;&&nbsp;Raynolds Company (now part of [[Hexion Inc.]]<ref>{{Cite web|url=https://epoxyflooringtech.com/history-of-epoxy-resin/|title=History of Epoxy Resin|website=epoxyflooringtech.com|date=27 March 2017}}</ref>), patented resin derived from bisphenol-A and [[epichlorohydrin]].<ref>{{cite patent |country= US |inventor= Sylvan Owen Greenlee |assign= DeVoe&nbsp;&&nbsp;Raynolds |number= 2456408 |gdate= 1948-12-14 |title= Synthetic drying compositions }}</ref>