Background and preparation of pyrolene_Kain Industrial Additives

Background and overview[1] Methylene isC10 A highly valuable component among heavy aromatics, it is mainly used to produce pyromellitic dianhydride (PMDA). The main use of pyromellitic dianhydride is to react with 4,4-diaminodiether to produce new high-temperature resistant engineering plastics and insulating materials polyimide (PI). Polyimide is widely used in aerospace, atomic energy, electromechanical and other…