The use of cellulose acetate phthalate has been known for a long time. It is often used as an enteric coating material in the field of medicine. Taking pills as an example, it is wrapped with cellulose acetate phthalate, which can ensure that the pill does not dissolve in the stomach and releases the drug effect in the intestines. It avoids the drug hurting the stomach and accurately achieves the effect in the intestines.

In industrial manufacturing, it can be used to prepare films with special properties. Such films have good water resistance and toughness, or are used to pack fine objects, prevent moisture and moisture, and protect items from moisture damage.

In terms of coatings, cellulose acetate phthalate is added, which can improve the film formation and adhesion of coatings. After the paint is applied to the surface of the object, a uniform and dense film layer is formed, which enhances the appearance of the object and has a protective effect, delaying the aging of the object.