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Pyromellitic dianhydride is used as a monomer in the preparation of polyimide polymers such as kapton; thermoplastics such as polyesters, polyethers, plasticizers, and expoxy resins. It is involved in the preparation of high performance coatings due to its mechanical, thermal and oxidative stability properties. It acts as a curing agent for epoxy resins which find application in adhesives, coatings and molding powders. As an intermediate, it plays an important role in polyimide based materials like printed circuit boards, tape automated bonding and magnetic wire insulation.
Xia, T.; Xi, Z.; Yi, X.; Liu, T.; Zhao, L. Melt Foamability of Poly(ethylene terephthalate)/Clay Nanocomposites Prepared by Extrusion Blending in the Presence of Pyromellitic Dianhydride. Ind. Eng. Chem. Res. 2015, 54 (27), 6922-6931.
Zhu, L.; Wang, X.; Wu, L.; Luo, Y.; Zhu, Y.; Lin, Q.; Shi, Z. Thermal decomposition properties of cross-linked polycarbonate derived from carbon dioxide, propylene oxide and pyromellitic dianhydride. Mater. Lett. 2014, 128, 396-399.
Dichiarazioni di rischio (UE): H303-H318-H334-H317
May be harmful if swallowed. Causes serious eye damage. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause an allergic skin reaction.
Dichiarazioni precauzionali: P284-P261-P280a-P305+P351+P338-P310a-P501a
Wear respiratory protection. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Dispose of contents/container in accordance with local/regional/national/international regulations.