| 摘要 |
A method of coating a mineral molding includes applying at least one aqueous preparation to at least one surface of the molding, the aqueous preparation including:(i) as film-forming constituent at least one polymer P which is composed of ethylenically unsaturated monomers M and which is present in dispersed form in the aqueous phase of the aqueous preparation and which has a glass transition temperature TG in the range from -25 to +80° C.;(ii) at least one anionic emulsifier selected from the group consisting of (a), (b), and (c):(a) salts of formula I: whereinAlk is linear or branched, saturated alkyl having from 10 to 18 carbon atoms,Et is 1,2-ethylene,n is an integer from 25 to 40, andM+ is a monovalent cation or a cation equivalent,(b) mixtures of salts of formula I; and(c) mixtures of salts of formula I with other anionic emulsifiers, wherein the salts of formula I make up at least 80% by weight of the anionic emulsifiers; and(iii) at least one nonionic emulsifier. |
