Phosphorous-containing organic polymerisable silanes and silicic acid polycondensates produced therewith

Silicic acid polycondensate that is obtained by the hydrolytic condensation of at least a compound of the Formula X

• (XaRbSi)m[—{B7}—([O]oP[O]pR′cYd)n]4-a-b X,
• wherein the groups, radicals and indices have the following meanings:
• B7 is an at least divalent, straight-chained or branched radical with at least 1 carbon atom,
• X is a radical that can be cleaved from the silicon atom by hydrolysis,
• R and R′ are independently alkyl, alkenyl, aryl, alkylaryl or arylalkyl wherein said alkyl, aryl, alkylaryl or arylalkyl is optionally substituted,
• Y is Cl, OH or OR′,
• a is 0, 1,2 or 3,
• b is 0, 1 or 2.
• a+b together are 1, 2 or 3,
• c is 0 or 2,
• d is 0 or 2,
• c+d together are 2,
• m is at least 1, with the proviso that m can only be 1 when a+b is 1 or 2,
• n is at least 1,
• o is 0 or 1, and
• p is 0 or 1.
• and wherein the hydrolytic condensation optionally comprises further hydrolytically condensable compounds of elements selected from the group consisting of B, Al, F, Sn, Pb, the transition metals, the lanthanides and the actinides, with the proviso that a silicic acid polycondensate of trialkyoxysilyl-ethane- or trialkyloxysilyl-propane phosphoric acid diethyl ester or 1,3-bis[diethyl phosphonoethyl]tetraethyl disiloxane in combination with a polymer dispersion of a water-insoluble organo-polymer is excluded.

Silicic acid polycondensate that is obtained by the hydrolytic condensation of at least a compound of the Formula X

• (XaRbSi)m[−{B7}−([O]oP[O]pR′cYd)n]4-a-b X,
• wherein the groups, radicals and indices have the following meanings:
• B7 is an at least divalent, straight-chained or branched radical with at least one organically polymerizable group and with at least 2 carbon atoms,
• X is a radical that can be cleaved from the silicon atom by hydrolysis,
• R and R′ are independently alkyl, alkenyl, aryl, alkylaryl or arylalkyl wherein said alkyl, alkenyl, aryl, alkylaryl or arylalkyl is optionally substituted,
• Y is Cl, OH or OR′,
• a is 0, 1,2 or 3,
• b is 0, 1 or 2,
• a+b together are 1, 2 or 3,
• c is 0 or 2,
• d is 0 or 2,
• c+d together are 2,
• m is at least 1, with the provision that m can only be 1 when a+b is 1 or 2,
• n is at least 1,
• o is 0 or 1, and
• p is 0 or 1,
• and wherein the hydrolytic condensation optionally comprises further hydrolytically condensable compounds of elements selected from the group consisting of B, Al, F, Sn, Pb, the transition metals, the lanthanides and the actinides.