"[T]he real breakthrough took place when, in 1978-1980, we developed... a -based geopolymeric liquid binder comprising soluble alkali-silicate... the first mineral resin ever manufactured. ...The commercial product ...GeopolymiteTM, was a good fire resistant alternative to organic resin."
January 1, 1970
https://en.wikiquote.org/wiki/Joseph_Davidovits