CURABLE ORGANOPOLYSILOXANE COMPOSITION Russian patent published in 2018 - IPC C04B26/32 C04B40/00 C04B111/20 C04B111/27 C04B111/54 

FIELD: chemistry.

SUBSTANCE: invention relates to curable organopolysiloxane compositions, a method for preparing the same and their use for production of artificial stones. Curable composition for production of molded articles, comprising (A1) resin component consisting of at least one organopolysiloxane resin, consisting of units of the formula, component (A1) has a mean molecular weight M_w of 500 g/mol to 11,000 g/mol and a number-average molecular weight M_n of 500 g/mol to 5,000 g/mol, and the polydispersity (M_w/M_n) of 1 to 5, (A2) organosilicon component consisting of at least one organosilicon compound consisting of units of the formula, and (B) at least one filler. Method for preparing said composition by mixing the individual components in any order. Molded article produced by crosslinking said compositions or the composition prepared according to said method. Method for production artificial stones, wherein said composition or composition prepared according to said method is subjected to molding and allowed to crosslink. Invention is developed in dependent items of the formula.

EFFECT: increased resistance to UV radiation, weathering effect, heat load.

11 cl, 6 tbl, 8 ex