At NINGBO INNO PHARMCHEM CO.,LTD., we believe that a deep understanding of a product's chemical foundation is key to its effective application. Pharmaceutical Grade Polyacrylic Resin, a vital component in many drug formulations, owes its versatility and efficacy to its specific chemical structure and resulting physical properties. Understanding these characteristics allows formulators to harness its full potential.

Polyacrylic resin is a synthetic polymer, typically a copolymer derived from acrylic acid and methacrylic acid or their esters. The precise arrangement and ratio of these monomers influence the final properties of the resin, such as its solubility, molecular weight, and glass transition temperature. These factors, in turn, dictate its behavior in pharmaceutical applications, from film formation to controlled release.

One of the most significant properties of our polyacrylic resin is its pH-dependent solubility. This characteristic is fundamental to its use as an enteric coating material. It remains insoluble in the acidic environment of the stomach but readily dissolves in the neutral to alkaline conditions found in the small intestine. This selectivity ensures that medications are released precisely where and when they are intended to be absorbed, maximizing therapeutic benefit and minimizing potential side effects.

Other key properties include its solubility in warm ethanol, which is useful during certain processing steps, and its insolubility in water, which contributes to the integrity of coatings in aqueous environments. The resin is supplied in a white strip or powder form, with specific controls on acid value, viscosity, and residual monomers to ensure consistent performance and adherence to pharmaceutical standards. By leveraging these inherent chemical strengths, NINGBO INNO PHARMCHEM CO.,LTD. provides a reliable and high-performing polyacrylic resin for all your pharmaceutical formulation needs.