Aqueous Enteric Coating Polymer

Enteric coating of tablets, pills, pellets, granules, and powders.

Appearance : Aqueous Enteric Coat L30D forms colourless and transparent film in presence of plasticizers, colour can be given with pigments.
Solubility : The Aqueous Enteric Coat L30D films formed are insoluble in pure water, in buffer solutions below pH 5.5 and natural gastric juices. Aqueous Enteric Coat L30D films are soluble in neutral to weakly alkaline region of the digestive tract, in intestinal fluids and buffer solutions above pH 5.5

• Enteric coating for resistance to gastric fluid, (to protect active drug from influence of acids, prevent irritation of gastric mucosa).
• Film coating of tablets, pills for protecting the drug from surrounding environment, particularly air, moisture, light, thus retaining required stability.
• Masking unpleasant taste and odour, thus overcoming resistance to drug ingestion. Providing product ‘identity’ for differentiation of products from manufacturing, storage to patient.
• Imparting cosmetic elegance to product appearance, masking, any noticeable visible differences in tablet core from batch to batch.
• Reducing risk of interactions between incompatible ingredients.
• Improves mechanical integrity, eliminating possibility of abrasions chipping etc…
• Insulating hygroscopic cores.
• Isolating porous cores.
• Extending and improving keeping properties.

• It eliminates fire hazard in your factory.
• It eliminates toxicity inhaling for coater.
• It reduces cost of solvents and indirectly reducing your cost of production without compromising the quality.
• Miscible with water in any proportion.
• Less quantity required, hence reducing volume of dispersion for coating.
• Low temperature required for film forming.
• Exhibits excellent colour value.
• Stability over a broad temperature range.
• Marginal weight gain in tablets.
• Hydrophobic.

Aqueous Enteric Coat L30D

• Appearance - White, milky liquid
• Odour - Weakly aromatic.
• Content - 28.5 to 31.5% w/w dry polymer.
• Acid value - 300 - 330 mg KOH/mg dry polymer.
• Solubility - Water or organic alcohols, acetone.

Aqueous Enteric Coat L100D

• Appearance - Off white powder.
• Odour - Weakly aromatic.
• Content - 95% Min. dry polymer.
• Acid value - 300 - 330 mg KOH/gm dry.
• Solubility - Water or organic alcohols, acetones.

Aqueous Enteric Coat L30D is a high molecular weight polymer. It is not absorbed by body tissues and is totally safe for human oral consumption. Test for toxicological tolerance show that it does not have pronounced physiological action and is non-toxic.

Solvent Enteric L100 solvent system can be adopted.

Aqueous Enteric Coat L30D film is brittle in nature. To improve film elasticity use of plasticizer is strongly recommended. The recommended plasticizers are polyethylene glycol, triacetin, triethyl citrate etc… usually 10% of plasticizer is sufficient, but if necessary, can be increased to 25%

Aqueous Enteric Coat L30D : 135 gms. Enteric L30D per 1 kg. tablets for enteric coating.
Aqueous Enteric Coat L100D : 40 gms. Enteric L100D per 1 kg. tablets for enteric coating.

At low temperature below 400c and keep away from frost.

Two years for Aqueous Enteric Coat L30D & five years for Aqueous Enteric Coat L100D from the date of manufacturing. Keep the container in tightly closed condition.

Aqueous Enteric Coat L30D : 5 kg, 20 kg, net in H.D.P.E. drum.
Aqueous Enteric Coat L100D : 5 kg, 20 kg, in corrugated box.