Patent ID: 9492394
Filing Date: 2016-11-15
CPC Classification: A61K,A61P

Claim Text:
1. A gastric resistant pharmaceutical or nutraceutical composition, comprising: a core, comprising: a gastric resistant coating layer on the core, wherein a release of the pharmaceutical or nutraceutical active ingredient is not more than 15% under in-vitro conditions at pH 1.2 for 2 hours in medium according to the method of USP32/NF27 with and without the addition of 40% (v/v) ethanol, and wherein the gastric resistant coating layer comprises 10 to 100% by weight of at least one salt of alginic acid which provides a 1% aqueous solution having a viscosity of 40 to 720 cP, wherein the weight gain of the coating layer is at least 3.5 mg/cm wherein the gastric resistant coating layer comprises 0% by weight of water-insoluble polymers other than a water-insoluble polymer selected from the group consisting of a vinyl copolymer and a (meth)acrylate copolymer, wherein the gastric resistant coating layer comprises 0 to 70% by weight of one or more water-soluble cellulosic polymers, one or more water-insoluble polymers selected from the group consisting of a vinyl copolymer and a (meth)acrylate copolymer, or a mixture thereof, based on the weight of the one or more salts of alginic acid contained, and wherein said (meth)acrylate copolymer is at least one of: (a) a methacrylate copolymer comprising free-radical polymerized units of more than 95 up to 100% by weight of C (b) a methacrylate copolymer comprising 85 to 98% by weight of free-radical polymerized C