Day February 1, 2026

MDI/TDI Core Production Technologies with Emphasis on Melt Crystallization

MDI and TDI Production Technologies and Market Structure

Introduction Methylene Diphenyl Diisocyanate (MDI, 4,4′-MDI) and Toluene Diisocyanate (TDI) are the backbone diisocyanates for polyurethane (PU) chemistry. MDI primarily feeds rigid foams, polyisocyanurate (PIR), and CASE; TDI dominates flexible foams for furniture and bedding. Their supply-demand balance drives costs…