| 摘要 |
<p>Derivatives of diphosphines as flame retardants for polyurethanes Summary The use of at least one diphosphine of formula (I), wherein X is S or O; n is 0 or 1; R1, R2, R3, R4 are independently C<sub>1</sub>-C<sub>10</sub>-alkyl, C<sub>1</sub>-C<sub>10</sub>-hydroxyalkyl, C<sub>1</sub>-C<sub>10</sub>-alkoxy, C<sub>1</sub>-C<sub>10</sub>-hydroxyalkoxy, C<sub>3</sub>-C<sub>10</sub>-cycloalkyl, C<sub>3</sub>-C<sub>10</sub>-cycloalkoxy, C<sub>6</sub>-C<sub>10</sub>- aryl, C<sub>6</sub>-C<sub>10</sub>-aryloxy, C<sub>6</sub>-C<sub>10</sub>-aryl-C<sub>1</sub>-C<sub>4</sub>-a lkyl, C<sub>6</sub>-C<sub>10</sub>-aryl-C<sub>1</sub>-C<sub>4</sub>-a lkoxy, C<sub>6</sub>-C<sub>10</sub>-hydroxy-aryl, C<sub>6</sub>-C<sub>10</sub>-hydroxy-aryloxy, C<sub>1</sub>-C<sub>10</sub>-thioalkyl, C<sub>6</sub>-C<sub>10</sub>- thioaryl or C<sub>1</sub>-C<sub>4</sub>-thioalkyl-C<sub>6</sub>-C<sub>10</s ub>-aryl, NR5R6, COR2, COOR5 or CONR5R6; R5, R6 are H, C<sub>1</sub>-C<sub>10</sub>-alkyl, C<sub>3</sub>-C<sub>10</sub>-cycloalkyl, C<sub>6</sub>-C<sub>10</sub>-aryl or C<sub>6</sub>-C<sub>10</sub>-aryl-C<sub>1</sub>-C<sub>4</sub>- alkyl; as a flame retardant in a polyurethane material is provided.</p> |
