Patent ID: 8865858

Claim:
A process for producing a composite material composed of a) at least one oxidic phase and b) an organic polymer phase, comprising the copolymerization of at least one compound of the general formula I [(ArO) m MO n R r H p ] q (I) in which M is B, Al, Ga, In, Si, Ge, Sn, P, As or Sb, m is 1, 2 or 3, n is 0 or 1, r is 0, 1 or 2, p is 1, 2 or 3, q is 1 or an integer >1, for example an integer from 2 to 20, especially an integer from 3 to 6, m+2n+r+p is 1, 2, 3, 4 or 5 and corresponds to the valency of M, Ar is phenyl or naphthyl, where the phenyl ring or the naphthyl ring is unsubstituted or may have one or more, substituents selected independently from alkyl, cycloalkyl, alkoxy, cycloalkoxy and NR a R b in which R a and R b are each independently hydrogen, alkyl or cycloalkyl, R is alkyl, alkenyl, cycloalkyl or aryl, where aryl is unsubstituted or may have one or more substituents selected independently from alkyl, cycloalkyl, alkoxy, cycloalkoxy and NR a R b in which R a and R b are each as defined above, with at least one compound selected from formaldehyde and formaldehyde equivalents in a reaction medium which is essentially anhydrous.