1,2,5,6-tetrahydrophthalic anhydride, abbreviated as tetrahydrophthalic anhydride, with the molecular formula C8H8O3, is one of the downstream products of maleic anhydride. It is used for alkyd and unsaturated resins to improve the adhesion, elasticity, gloss, and water resistance of coatings. As a curing agent, it can be made into products with good high-temperature electrical properties compared to amines, so it is commonly used as an epoxy resin curing agent. As a plasticizer, it can improve the cold and heat resistance of PVC, and is non-toxic. At the same time, this product is also a raw material for synthesizing surfactants and pharmaceutical pesticides.
Tetrahydrophthalic anhydride is one of the downstream products of maleic anhydride. It is a novel organic anhydride epoxy resin curing agent with excellent performance, used for alkyd and unsaturated resins, which can improve the adhesion, elasticity, gloss, and water resistance of coatings. As a plasticizer, it can improve the cold and heat resistance of PVC, and is non-toxic. Widely used in the electronics and electronics industry, as well as in the aerospace industry. At the same time, this product is also a raw material for synthesizing surfactants and pharmaceutical pesticide products.
Tetrahydrophthalic anhydride is an important chemical intermediate used in the synthesis of numerous chemical products, including 1,2,3,4-butanetetracarboxylic acid, hyperbranched polyester, and hexahydrophthalic anhydride. Synthesis of 1,2,3,4-butanetetraclonic acid:
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