| 摘要 |
New, cationically curable oxyalkylene ethers and the synthesis thereof are disclosed. The oxyalkylene ethers, are of the general, average formula <IMAGE> wherein R1 is an n-valent residual group derived from a compound (R1)Hn from which n active hydrogen atoms have been split off and is capable of entering into an addition reaction with oxiranes, or a univalent alkyl or aryl group, and n>/=1; R2 is a hydrogen, hydrocarbon or R3OCH2- group; R3 and R4 are each hydrogen, hydrocarbon or acyl groups, and R1, R2, R3 and R4 may have different meanings in the molecule; R5, R6 and R7 are each hydrogen or alkyl groups with 1 to 8 carbon atoms, or R5 and R7, or R6 and R7 together are a constituent of a cyclic, non-aromatic hydrocarbon group with 5 or 6 carbon atoms; m is at least 1 and at most n; x is the average molecule=3 to 100, and y in the average molecule=0 to 100, provided that 3</=x+y<150. They contain alkenyl groups and are useful as curable oligomers in casting compounds and coating agents and as reactive diluents for epoxide resins.
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