Process for the production of mineral matter formed coated

摘要

Process for production of mineral matter formed coated.The invention relates to a process for producing coated mineral bodies formed by applying a coating agent containing an aqueous polymer dispersion serving as agent of Ag.Lutinau00e7u00e3o and at least an aqueous solution of copolymer of styrene and carbon malu00e9ico. The body part is subsequ00b3entemente hardened and the coating agent is dried.The invention is characterized by the fact that at least an aqueous solution of copolymer of styrene and malu00e9ico anhydride is added to the dispersion polymer after completion of the polymerization.The formed bodies coated in such a way as to perform improved efflorescence.The process is particularly suitable for the coating of tile roof and concrete blocks containing fibers.