Hydroxypropyl methylcellulose (HPMC), tseem hu ua hypromellose, yog ib qho polymer uas tau los ntawm cellulose. Nws yog ib qho polymer uas tsis yog ionic, yaj hauv dej uas tsis muaj qhov melting point sib txawv. Hloov chaw, HPMC raug rhuav tshem los ntawm thermal ua ntej mus txog qhov melting point.