Coating composition suitable for pharmaceutical or nutraceutical dosage forms

A coating composition consisting essentially of components suitable for the coating a pharmaceutical or nutraceutical dosage form, comprising:

• at least 20% by weight of an enteric core/shell polymer composition derived from an emulsion polymerization process whereby (1) core polymer particles are formed by monomer polymerization in an emulsion, and (2) the shell is polymerized onto the core polymer particles by subsequent monomer polymerization in the same emulsion,
• wherein the enteric core/shell polymer composition has an homogeneous microstructure without visible phase separation;
• and
• wherein either the core polymer of the core/shell polymer composition is a water-insoluble, not cross-linked polymer or copolymer and the shell polymer of the core/shell polymer composition is an anionic polymer or copolymer, or the shell polymer of the core/shell polymer composition is a water-insoluble, not cross-linked polymer or copolymer and the core polymer of the core/shell polymer composition is an anionic polymer or copolymer.