Trimethylolpropane (TMP) is an important fine chemical product and a commonly used chain extender in the resin industry. It has a low melting point and contains three hydroxymethyl groups in its molecular structure. It reacts with organic acids to form monoesters and polyesters, aldehydes and ketones to form acetals and ketals, and diisocyanates to form carbamates. It is primarily used in alkyd resins, polyurethanes, unsaturated resins, polyester resins, and coatings. It can also be used in the synthesis of aviation lubricants, plasticizers, surfactants, wetting agents, explosives, and printing inks. It is also used as a textile auxiliaries and a heat stabilizer for polyvinyl chloride resins.
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