| 摘要 |
Acrylic and methacrylic esters of substituted 1,2-bis(phenoxy)-3,3,4,4,5,5-hexafluoro-1-cyclopentenes of the formula <IMAGE> (I) in which, in each case independently of one another, R1 and R2 denote C1-to C4-alkyl, C1- to C4-halogenoalkyl or hydrogen, R3 and R4 denote (n+1)- or (m+1)-valent, straight-chain or branched hydrocarbon radicals having 2 to 15 carbon atoms, which may optionally contain 1 to 3 oxygen bridges, R5 and R6 denote hydrogen or methyl, X represents <IMAGE> and n and m denote integers from 1 to 5 The ester can be polymerized to form dental fillings, coatings and artificial teeth.
|
