| 摘要 |
Compounds of the formula <IMAGE> WHEREIN Z is alkyl with 2 to 6 carbon atoms, x is oxygen, NH or sulfur, n and m are integers from 2 to 6, r is zero or 1, R4, R5 R6 and R7 are hydrogen or methyl and R3 is methyl, ethyl or phenyl. They are obtained by reacting 1 mole of a compound of formula Z-(X-H)n WITH N.M MOLES OF AN ALKYLENEOXIDE OR ALKYLENECARBONATE OF THE FORMULAS <IMAGE> and n(m+r) moles of a phospholane of formula <IMAGE> These compounds are used as flameproofing agents especially for pile carpets. |
