Tetrahydrophthalic Anhydride (THPA)

Specification: IndexAppearance Color in Molten State, THPA (Pt-Co), 60max60 maxPurity, Wt% (Gaschromatography) 99.0% min98.0% minSolidification Point 0±1.5100±1.5Ash ,Wt%, 0.005max/ 5/ Application of THPA 1. THPA is used as a component of hardeners for epoxies to make the condensate with better weather proof, heat resisting and electrical performance. For expoxy resin curing agent, etc., curing material with excellent weatherability, heat resistance and electrical performance 2. As modifying agents to alkyd resins,catalure and melamine resin. 3. Used for the unsaturated polyester resins to make it with better proof ,colour stability, corrosion resistance and mechanical strength. 4. Used for the mancufacture of captan sulfuration conditioning agent,plasticity agent and surface active agent,etc.