Pharmaceutical or nutraceutical composition with resistance against the influence of ethanol

US10980751B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Shraddha Joshi · Navi Mumbai, IN
• Ashish Guha · Kalyan-Dombivli, IN
• Sanjay Lanke · Navi Mumbai, IN
• Vinay K. Jain · Dallas, US
• Firouz Asgarzadeh · Fryeburg, US
• Mitulkumar Patel · Plainsboro, US

Key dates

• Filing date: May 23, 2016
• Grant date: Apr 20, 2021
• Expiry date: May 23, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23V2002/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention refers to a pharmaceutical or nutraceutical composition comprising a core a) comprising an active ingredient and a water-insoluble polymer, a coating layer b) above the core a) comprising a salt of an alginic acid, and a coating layer c) above the coating layer b) comprising an anionic (meth)acrylate copolymer polymerized from a (meth)acrylate monomer mixture comprising 5-75% by weight in relation to the total weight of the (meth)acrylate monomer mixture of (meth)acrylate monomers with an anionic group, wherein the amount of the water-insoluble polymer in the core a) is 2 to 20% by weight in relation to the weight of the core a) and the amount of the salt of an alginic acid in the coating layer b) is 5 to 85% by weight in relation to the weight of the core a) and the amount of the anionic (meth)acrylate copolymer in the coating layer c) is 10 to 75% by weight in relation to the weight of the core a) and to the coating layer b).