| abstract |
The invention relates to a process for the preparation of 3-chloropropyltrichlorosilane by reacting trichlorosilane with allyl chloride in the presence of a platinum-containing polymeric organosiloxane-ammonium compound from units in the R 1 , R 2 and R 3 for a group stand, where R 5 is an alkylene grouping and the free valances of the oxygen atoms are saturated by silicon atoms of further groups (2), optionally with the incorporation of crosslinking agents, R 4 is R 1 , R 2 , R 3 or hydrogen, an alkyl -, Cycloalkyl- or benzyl group, Y x - for PtX 4 2- or PtX 6 2- (X = Cl or Br) and for an inorganic, 1- to 3-valent anion of a proton acid forming salts stable with amine bases or the hydroxyl group and x can be a number from 1 to 3. |