摘要:
The present invention relates to a process for preparing an aqueous polymer dispersion by free-radical emulsion polymerization of a monomer mixture which comprises N,N-diethylaminoethyl methacrylate, to the polymer dispersion obtainable by this process, and to the use thereof.
摘要:
Dosage forms provided with protective coatings in which a core comprising at least one acidic active ingredient is provided with at least one inner and one outer coating layer, where the outer layer comprises, as component A, a cationic polymer which is an emulsion polymer of N,N-diethylaminoethyl methacrylate and further monomers.
摘要:
The present invention relates to a polymeric composition for coating solid substrates (S) consisting of: a) 0.5-90% by weight of polyethylene glycol with a weight-average molecular weight in the range from 1500 to 20 000 g/mol (component A), b) 0.5-20% by weight of a water-soluble polyvinylpyrrolidone with a Fikentscher K value in the range from 12 to 90 (component B), c) 0-95% by weight of a solvent (L), and d) 0-70% by weight of one or more non-polymeric aids (component C).
摘要:
The present invention relates to water-soluble or water-dispersible copolymers obtainable by free-radical polymerization of a) 80 to 20% by weight of hydroxy-C1–C6-alkyl (meth)acrylate and, where appropriate, one or more compounds of the formula (A) or (B) with R1=H, C1–C6-alkyl, R2=H, CH3 R3=C1–C24-alkyl or mixtures thereof in the presence of b) 20 to 80% by weight of polyvinyl alcohol (PVA) and c) where appropriate 0 to 20% by weight of other polymerizable compounds (C), a process for their preparation, and their use as coating agent, binder and/or film-forming excipient in pharmaceutical dosage forms.
摘要:
A quick dissolving film coating composition for coating solid substrates is composed of a) 10-90% by weight of a polyvinyl alcohol-polyether graft copolymer (component A), b) 5-80% by weight of at least one further component containing at least one functional group selected from the group consisting of hydroxyl, amide and ester functions (component B), and c) 0-70% by weight of further customary coating constituents (components C).
摘要:
Orally disintegrating dosage forms, for the purpose of masking the taste, comprise active ingredients coated with a cationic polymer are described. The coating of polymers comprises N,N-diethylaminoethyl methacrylate (DEAEMA) polymerized therein. The taste-masked active ingredients are embedded into an orally disintegrating matrix.
摘要:
The present invention relates to a method for producing N-vinyl pyrrolidone/vinyl acetate copolymers that are soluble in water and that at the same time have a relatively high molecular weight, and to the aqueous polymer solutions and copolymers obtained by way of said method.
摘要:
The use of polymers which are obtainable by polymerization of a) at least one vinyl ester of aliphatic C1-C24-carboxylic acids in the presence of b) polyethers of the general formula I, in which the variables have, independently of one another, the meanings mentioned in the description, as coating agent, binder and/or film-forming excipient in pharmaceutical presentations.
摘要:
A coating material, containing a mixture of i) a polymer obtained by radical polymerization from a) N,N-diethylaminoethyl methacrylate, and b) at least one radically polymerizable compound, selected from esters of α,β-ethylenically unsaturated mono- and dicarboxylic acids with C1-C18 alkanols, as component A, ii) one or more antioxidants as component B, iii) one or more plasticizers as component C, and iv) other excipients as components D, wherein the total amount of the mixture of components A-D is 100 wt. %.
摘要:
Described is a process for producing pulverulent, antioxidant-comprising coating compositions, comprising providing an aqueous polymer dispersions comprising one or more antioxidants and a polymer obtained by radical polymerization of a) N,N-diethylaminoethyl methacrylate, and b) at least one radically polymerizable compound selected from esters of α,β-ethylenically unsaturated mono- and dicarboxylic acids with C1-C8-alkanols, wherein the antioxidants are incorporated into the aqueous polymer dispersion in the form of a solution or of a dispersion, and spray processing the aqueous polymer dispersion to provide a powder form.