Patent ID: 8354489

Claim:
A method for the production of silicon-boron-carbon-nitrogen polymers comprising reacting disilazanes of formula (I) R 3 Si—NR—SiR 3 , wherein R in each case mutually independently represents hydrogen or a hydrocarbon residue with 1 to 20 C atoms with a borosilylamine of formula (II): in which Hal in each case independently means Cl, Br or I, R 1 , R 2 , R 3 and R 4 in each case mutually independently represent hydrogen, Hal or a hydrocarbon residue with 1 to 20 C atoms or with a borosilyl hydrocarbon of formula (III): in which Hal in each case independently means Cl, Br or I, R 1 , R 2 and R 3 in each case independently represent H, Hal or a hydrocarbon residue with 1 to 20 C atoms and X in each case independently represents a linear, unbranched, branched or cyclic hydrocarbon residue with 1 to 20 C atoms.