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(1)HPMC or Hydroxypropyl methylcellulose (INN name: Hypromellose), also simplified as hydroxypropyl methylcellulose (HPMC), is a kind of non-ionic cellulose mixed ether. It is a semi-synthetic, inactive, viscoelastic polymer. Hydroxypropyl methylcellulose is widely used in construction, food, medicine, and other industries.
In construction, HPMC finds use as a water retention agent and a binder in mortar and plaster. Its safety in these applications is also confirmed, as it does not emit toxic fumes and is environmentally friendly.