Patent ID: 6902608

Claim:
A dental material, characterized in that it comprises one or more phosphonic acids with the following structure and/or salts of these acids: in which R, R 7 and p are, independently of one another: either: a) R: alkyl group or alkylene group with at least 6 C-atoms or aryl group, R 7 : H, methyl, ethyl, propyl, isopropyl or butyl, p is 1 or 2; or: b) R: —CO—NR 1 —R 8 — with R 1 equal to H, alkyl or aryl, with R 8 equal to an alkylene group or a branched alkyl group with 4 to 18 C-atoms or R 8 is C n H 2n —Si(R 5 ) 2 —[O—Si(R 5 ) 2 ] m —C n H 2n in which 3≦n≦12, 1≦m≦10, and R 5 is methyl, ethyl or phenyl, or R 8 is C n H 2n —COONH—C n H 2n in which 4≦n≦12, and in which R 8 can have ether or additional urethane groups, R 7 : H, methyl, ethyl, propyl, isopropyl, or butyl, p is 1 or 2; or: c) R: with R 10 , chosen from the group consisting of aryl groups, alkyl groups with at least 3 C-atoms or polyether groups with 1 to 10 polyether units and with R 11 chosen, identically or differently, from the group consisting of alkyl groups and aryl groups, with X equal to N, B or CH, R 7 : COOR 9 , CONHR 9 , H or phenyl with R 9 chosen from the group consisting of methyl, ethyl, propyl, isopropyl and butyl, p is equal to 2.