| 摘要 |
<p>(Meth)-acrylic acid esters of the formula <IMAGE> in which R1 and R2 are each independently hydrogen, chlorine, fluorine or a C1- to C4-alkyl radical and R3 and R4 are identical or different and represent the group <IMAGE> wherein Y is a divalent bridge member from the group <IMAGE> and Z is a straight-chain or branched hydrocarbon chain which has 2 to 10 carbon atoms, can optionally contain oxygen bridges and is optionally substituted by 1 to 4 acrylate or methacrylate radicals, wherein R5 represents hydrogen or methyl and R6 represents hydrogen, C1-C6- alkyl or phenyl, which are useful as dental materials.</p> |
