Patent ID: 7175857

Claim:
A process for the production of granules or powders, suitable as coating agents and binders for oral or dermal pharmaceutical forms, for cosmetics or food supplements, consisting essentially of (a) 50 to 90 by weight, of a copolymer, consisting of free radical-polymerized C1- to C4-esters of acrylic or methacrylic acid and further (meth)acrylate monomers which contain functional tertiary amino groups, wherein the copolymer is present in granule or powder form, (b) 3 to 25% by weight, based on (a), of an emulsifier having an HLB of at least 14, and (c) 5 to 50% by weight, based on (a), of a C 12 - to C 18 -monocarboxylic acid or of a C 12 - to C 18 -hydroxyl compound, where the components (a), (b) and (c) are simultaneously or successively blended or mixed with one another, optionally with addition of a pharmaceutical active compound and/or further customary additives, fused in a heatable mixer, mixed, the melt is cooled and comminuted to give granules or powders wherein the coating and binding agents have a water vapor permeability of at most 300 (g/m 2 /d) as measured according to DIN 53 122.