Home Display Materials Polyimide (PI) material 3,3′,4,4′-Benzophenonetetracarboxylic dianhydride(BTDA) 3,3′,4,4′-Benzophenonetetracarboxylic dianhydride(BTDA) CAS: 2421-28-5 Category: Polyimide (PI) material Related products p-PhenylenediaMine(p-PDA)CAS: 106-50-3 Polyimide (PI) material 4,4′-Diaminodiphenylmethane (MDA)CAS: 101-77-9 Polyimide (PI) material 6-(4-Hydroxyphenoxy)hexyl acrylateCAS: 161841-12-9 Polyimide (PI) material 3,3′,5,5′-Tetramethylbenzidine (TMB)CAS: 54827-17-7 Polyimide (PI) material