| abstract |
The present invention relates to a gypsum construction board comprising two covering layers and a gypsum core, where the gypsum core comprises microcapsules with a lipophilic capsule core and a capsule wall formed fromn 30 to 100% by weight, based on the total weight of the monomers, of one or more monomers (monomers I) selected from C 1 -C 24 -alkyl esters of acrylic and methacrylic acid, acrylic acid, methacrylic acid and maleic acid, 0 to 70% by weight, based on the total weight of the monomers, of one or more monomers with at least two nonconjugated ethylenic double bonds (monomers II), which is insoluble or sparingly soluble in water, and 0 to 40% by weight, based on the total weight of the monomers, of one or more other monomers (monomers III), and at least one polymer P, which has a glass transition temperature T g in the range from −60 to 160° C., and also a method for its production. |