摘要:
Finely divided binders in powder form composed of vinyllactam polymers, where the binders have an average particle size of up to 35 μm and an apparent density of less than 0.2 g/ml.
摘要:
Method for stabilizing polyvinylpyrrolidones, which comprises treating the polyvinylpyrrolidones with sulfur dioxide, sulfurous acid or alkali metal sulfites and then with free-radical scavenger, and converting the solutions treated in this way into the powdered polyvinylpyrrolidones by drying.
摘要:
Method for stabilizing polyvinylpyrrolidones, which comprises treating the polyvinylpyrrolidones with sulfur dioxide, sulfurous acid or alkali metal sulfites and then with free-radical scavenger, and converting the solutions treated in this way into the powdered polyvinylpyrrolidones by drying.
摘要:
Finely divided binders in powder form composed of vinyllactam polymers, where the binders have an average particle size of up to 35 μm and an apparent density of less than 0.2 g/ml.
摘要:
The present invention relates to a method for the production of solid solutions of sparingly soluble pesticides, pulverulent products that are obtained by said method and their use for pesticide formulations.
摘要:
The present invention relates to a method for the production of solid solutions of sparingly soluble pesticides, pulverulent products that are obtained by said method and their use for pesticide formulations.
摘要:
The present invention relates to oral dosage forms comprising a) one or more active ingredients b) a formulated mixture of polyvinyl acetate and polyvinylpyrrolidone c) where appropriate other excipients customary for producing the dosage form, wherein they float on gastric fluid and display delayed release of active ingredient, and to the use and production thereof.
摘要:
A process for producing solid solutions in powder or granule form of slightly soluble substances in which the slightly soluble substance is in the form of a molecular dispersion in an excipient matrix, by atomizing a solution of the active ingredient and of the matrix excipients, which comprises heating an aqueous suspension of the slightly soluble substance in the presence of the matrix excipients to temperatures above the boiling point under atmospheric pressure, and dissolving the slightly soluble substance, and subsequently converting the solution of the slightly soluble substance and of the matrix excipients by atomizing and drying into a solid form, where the temperature of the spray solution before feeding into the atomizing apparatus is 90° C. to 350° C.
摘要:
The present invention relates to a process for producing solid oral dosage forms with sustained release of active ingredient, comprising at least one active ingredient, a preformulated mixture of polyvinyl acetate and polyvinylpyrrolidone, where appropriate, water-soluble polymers or lipophilic additives and, where appropriate, other conventional excipients, wherein this mixture or parts of this mixture are granulated by heating to from 40° C. to 130° C., and the granules are, after admixture with conventional excipients, subsequently tabletted.
摘要:
The present invention relates to a process for producing solid oral dosage forms with sustained release of active ingredient, comprising at least one active ingredient, a preformulated mixture of polyvinyl acetate and polyvinylpyrrolidone, where appropriate, water-soluble polymers or lipophilic additives and, where appropriate, other conventional excipients, wherein this mixture or parts of this mixture are granulated by heating to from 40° C. to 130° C., and the granules are, after admixture with conventional excipients, subsequently tabletted.