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 6-(4-Hydroxyphenoxy)hexyl acrylateCAS: 161841-12-9 Polyimide (PI) material 4,4′-Oxydianiline (ODA)CAS: 101-80-4 Polyimide (PI) material 3,5-Diaminobenzoic acid (DABA)CAS: 535-87-5 Polyimide (PI) material Pyromellitic Dianhydride (PMDA)CAS: 89-32-7 Polyimide (PI) material