| 摘要 |
Use of a phosphorus compound of the formula (I) as flame retardant, where the definitions of the symbols in the formula (I) are as follows: A is one of the following groups: Y is —P(═X2)SR3R4, H, a straight-chain or branched C1-C12-alkyl group, C5-C6-cycloalkyl, C6-C12-aryl, or benzyl, where the four last-mentioned groups are unsubstituted or have substitution by one or more radicals from the group of C1-C4-alkyl or C1-C4-alkenyl; R1, R2, R3, and R4 are identical or different and are hydrogen, OH, C1-C16-alkyl, C1-C16-alkenyl, C1-C16-alkoxy, C1-C16-alkenoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, C6-C10-aryl, C6-C10-aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, SR9 COR10, COOR11, CONR12R13 or two radicals R1, R2, R3, or R4 form, together with the phosphorus atom to which they are bonded, or the P—O-A-O—P group, a ring system; R5, R6, R7, and R8 are identical or different and are H, C1-C16-alkyl, C1-C16-alkenyl, C1-C16-alkoxy, C1-C16-alkenoxy; R9, R10, R11, R12, R13 are identical or different and are H, C1-C16-alkyl, C1-C16-alkenyl, C6-C10-aryl, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy; X1 and X2 are identical or different and are S or O; r and s are identical or different and are 0 or 1; X3, X4, X5, and X6 are identical or different and are S or O, and n is a natural number from 1 to 50. |
