Isophthalic acid

Main Applications

Polymer Materials Field:

Unsaturated Polyester Resin: Copolymerized with maleic anhydride to produce high-strength, corrosion-resistant resins, used in fiberglass, pipes, and artificial marble.

Copolyester Modification:

PETG (Polyethylene Terephthalate-Isophthalate): High transparency and impact resistance, used in food packaging and medical devices.

APET (Amorphous Polyester): High temperature resistance, suitable for hot-fill containers.

Engineering Plastics: Blended with polycarbonate (PC) or polyamide to improve heat resistance and creep resistance of the material.

Coatings and Adhesives:

Alkyd Resins: Fast-drying and aging-resistant, used for metal and wood surface coatings.

Powder Coatings: Formulated with epoxy resins to enhance coating hardness and wear resistance.

Specialty Chemicals:

Film Color Couplers: Used in dye synthesis for color films.

Pharmaceutical Intermediates: Synthesis of antihistamines, diuretics, and other drugs.

Other Applications:

Production of hot-melt adhesives, plasticizers, or as dye intermediates to regulate fiber dyeing properties.