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Precise, pH-independent sustained release for multiple applications

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Excipients for Drug Formulation

Kollicoat® SR 30 D

The coating polymer for pH-independent sustained release formulations

Kollicoat® SR 30 D is a low-viscosity, non-sticky aqueous dispersion of polyvinyl acetate. Whatever the dosage form, this innovative coating releases active ingredients precisely and evenly over a period of time, at any pH. It exhibits a high binding capacity and excellent film-forming properties – simplifying production and ensuring exceptionally flexible coatings. Kollicoat® SR 30 D produces consistent results across multiple formulations: whether deployed as a film coating for extruded or drug-layered pellets, used to coat and compress multi-particulate single units into tablets, or for granulating and compressing non-erodible sustained-release matrix tablets.

Why choose Kollicoat® SR 30 D?

  • Low viscous aqueous dispersion of polyvinyl acetate
  • High binding capacity and excellent film-forming properties
  • High resistance to mechanical stress
  • Provides moderate taste-masking in multiple dosage forms
Product Details
Chemical Name: Polyvinyl acetate stabilized with polyvinylpyrrolidone and sodium lauryl sulfate
CAS-No: 9003-20-7
Regulatory Status: Kollicoat® SR 30 D meets the requirements of the current monograph for Poly (Vinyl Acetate) Dispersion 30 Per Cent of Ph. Eur.
Applications: The main application is for the production of pH-independent sustained-release formulations. In combination with pore-formers the dispersion can also be used for taste masking purposes.
Solubility: Kollicoat® SR 30 D is miscible with water in any ratio while retaining its milky-white appearance. Mixing the product with ethanol or isopropyl alcohol in a 1 : 5 ratio produces a slightly turbid and somewhat viscous solution; a solution in acetone is more turbid. When organic solvents are added, the polymer precipitates at first, but then dissolves when further solvent is added. Kollicoat® SR 30 D is insoluble in dilute alkaline or acidic solutions. 

Discover more about Kollicoat® SR 30 D

Functional solutions for formulations with sustained drug release

We offer a distinct set of highly functional materials that allow you to flexibly design your desired sustained release profiles.

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Related Functionalities

Sustained Release

Sustained release profiles allow tailored dosing of the active ingredient over an extended period of time up to 24 hours. Common ways to achieve such release rates are the use of film coating, a sustained release matrix or sustained release drug-loaded granules. BASF offers powerful excipients that provide almost endless design space for sustained release formulations.

Film Forming

In formulation processes film formers provide a range of functionalities via a coating layer. BASF offers a full range of highly efficient film formers for all dosage forms.

Taste Masking

Whether you are looking for taste masking in a solid or a liquid dosage form, BASF has a whole range of solutions at hand.

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Customized solutions for the effective coatings of softgels to provide enteric sustained release and moisture protection.

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BASF has a robust portfolio of polymeric film formers to meet a variety of needs.

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Coating / Layering

Solid oral dosage forms are coated to apply a range of functions: from attractive colored instant-release coatings or robust taste-masking to functional coatings defining enteric or sustained release. BASF offers all major coating types plus as well as plasticizers for your successful coating formulation.

Wet Granulation

BASF offers the key functional materials required to achieve great wet granulation results.

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BASF offers a number of film formers and plasticizers for topical formulations enabling you to create the ideal skin delivery solution for your topical polymeric film formulation.

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