| 摘要 |
<p>: The present invention relates to bromine-con-taining oligomeric ethers containing structural units corresponding to the formula in which X = Br, Cl or H, n = 0 to 4, p, the average degree of condensation is from 2 to 10 and y independently of one another represents Br, Cl or H, the sum X+Y containing at least two Br-atoms, and Z represents a direct bond, -CH2-, C(CH3)2 or -SO2-. The invention is also directed to a process for obtaining the above said compounds which are suitable for use as flameproofing agents for numerous plastics.</p> |
