HPMC is often widely used in other fields, such as plastics: as a mold release agent, softener, lubricant, etc. Polyvinyl chloride: used as a dispersant in the production of polyvinyl chloride, it is the main auxiliary agent for the preparation of PVC by suspension polymerization. Pharmaceutical industry: coating materials; film materials; rate-controlling polymer materials for sustained-release preparations; stabilizers; suspending agents; tablet adhesives; Textile industry, etc.