| 摘要 |
<p>Dicarbamic acid diesters of the formula <IMAGE> in which R represents C1 - C4-alkylene which is optionally substituted by one or more halogen atoms, and R1 and R2 independently of one another represent C1 - C4-alkyl which is optionally substituted by halogen atoms or together with the oxygen atoms and the phosphorus atom form a 5-membered to 7-membered heterocyclic structure, R3 is hydrogen, hydroxymethyl or C1 - C4-alkoxymethyl and R4 represents a divalent radical, with at least 2 carbon atoms, which is free from hydroxyl groups, and of which the two bonds must start from different carbon atoms, and wherein the phosphorus content of the diester is more than 5 % by weight, are suitable as flameproofing agents for textile materials, paper and plastics.</p> |
