Methylene Diphenyl Diisocyanate (MDI) CAS:9016-87-9 Methylene Diphenyl Diisocyanate is produced by a 4 steps reaction based on benzene as feedstock. There are 3 isomers of MDI : 2,2-MDI, 2,4-MDI, and 4,4-MDI. The 4,4 isomer is known as pure or monomeric MDI (mMDI).The Polymeric MDI so called Crude MDI contains monomeric MDI and products with higher […]
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TriMellitic Anhydride (TMA) Cas: 552-30-7 TriMellitic Anhydride Chemical Structure Composition. Production TriMellitic Anhydride (TMA) is a petrochemical intermediate manufactured in solid form. Feedstock is Trimethyl benzene (Pseudo Cumene). TMA is not considered hazardous for transport but is hazardous and toxic for handling. Uses TriMellitic Anhydride is used in polyester resins for coatings, polyamide resins (Nylon), […]