It is there stated that acryloylsilanes of the formula ##STR1## wherein R1 is hydrogen or methyl, R2 and R3 are identical or different alkyls of 1 to 4 carbon atoms, m is 0, 1 or 2, and n is a whole number from 1 to 4, can be prepared by reacting a solid alkali metal salt of methacrylic acid or acrylic acid with a chloroalkylsilane of the formula ##STR2## wherein R2, R3, m and n have the meanings