Tha main applications of Phthalic Anhydride are:

Insaturated polyester resin, which applications are in boats, bath furniture (spas, bathtub, washbasin, WC), chairs, polymeric concrete, automotive parts, piping, tanks.

Alquidalic resins, which is used in alquidalic paints frecuently used in automotive and arquitectonic paints.

Plasticizers based in ftalates, such as DOP, DINP, DBP.

Pigments, such as ftalate pigment.

Product is available Molten or Flake.

IDESA also offers:
Sales specification
Material safety data sheet