but demand for specialty isocyanates still depends on imports.

Isocyanate is the general name for various esters of isocyanate. According to the number of groups, isocyanate can be divided into monoisocyanate, diisocyanate and polyisocyanate, among which diisocyanate also includes toluene diisocyanate and diphenylmethane diisocyanate (MDI). , Isophorone diisocyanate, etc. Isocyanate contains unsaturated bonds in its structure and is highly reactive. It is a key…