| abstract |
The invention is concerned with a powder composition, comprising 50 to 95 % by weight of a copolymer mixture A of a copolymer 1, comprising 5 to 60 % by weight of polymerized units of methacylic acid and 95 to 40 % by weight of C1- to C4-alkylesters of (meth)acrylic acid, and a copolymer 2, comprising more than 95 and up to 100 % by weight of polymerized units of C1- to C4-alkylesters of (meth)acrylic acid, and 50 to 5 % by weight of a water-soluble cellulose B. The powder composition originates from the co-processing of the copolymer mixture A and the water-soluble cellulose B by a drying process of an aqueous dispersion, such as spray drying or freeze drying. Further processing leads to a compressed dosage form. |