| abstract |
The invention relates to urethane di(meth)acrylate derivatives of 1-3-bis(1-isocyanato-1-methylethyl)benzene according to Formula (I)in which R is hydrogen or a straight-chained C1-C8 alkyl radical; X and Y independently of each other stand forR<1 >being a substituted or unsubstituted C6- to C12-aryl or C7- to C16-alkyl aryl radical; R<2 >hydrogen, a C1- to C5-alkyl or a substituted or unsubstituted C6- to C12-aryl radical; R<3 >hydrogen or a methyl radical; R<4 >a C1- to C8-alkylene radical which can be broken by oxygen atoms, or a phenylene radical; R<5 >hydrogen or a methyl radical; R<6 >a substituted or unsubstituted C6- to C12-aryl or C7- to C16-alkyl aryl radical; Z being -CO- or a chemical bond and W standing for oxygen, sulphur or NR<7>, R<7 >being hydrogen or a straight-chained C1- to C6-alkyl radical. The substances are suitable in particular for the production of dental materials. |