摘要:
The present invention relates to a flame-retarding agent comprising a phosphoramidate compound represented by Formula (I): wherein R 1 and R 2 are each independently C 1-3 alkyl, R 11 and R 12 are each independently C 1-3 alkylene, R 13 is C 1-6 alkylene, B 1 is hydrogen or C 1-6 alkyl, and A is hydrogen or an organic group represented by Formula (Ia): wherein R 3 and R 4 are each independently C 1-3 alkyl, R 14 and R 15 are each independently C 1-3 alkylene, and B 2 is hydrogen or C 1-6 alkyl, wherein when B 1 is C 1-6 alkyl, and A is hydrogen, B 1 and R 13 -A, taken together with nitrogen to which they are attached, may form a non-aromatic nitrogen-containing heterocycle, and wherein when B 1 is C 1-6 alkyl, A is an organic group represented by Formula (Ia), and B 2 is C 1-6 alkyl, B 1 and B 2 , taken together with nitrogen to which they are attached and with R 13 , may form a non-aromatic nitrogen-containing heterocycle.
摘要:
A phosphorus flame-retardant composition characterized in that it comprises an aromatic diphosphate compound represented by the general formula (I): wherein R1 and R2 are, the same or different, a lower alkyl group, R3 and R4 are, the same or different, a hydrogen atom or a lower alkyl group, Y is a bonding arm, a -CH2-, -C(CH3)2-, - S-, -S02-, -O-, -CO- or -N=N- group, k is 0 or 1, and m is an integer from 0 to 4, and it contains, as an impurity, a phosphorus compound having a hydroxyphenyl group represented by the general formula (II): wherein R1, R2, R3, R4, Y, k and m are as defined in the general formula (I), the content of the phosphorus compound being 1% by area or less as determined by gel permeation chromatography (GPC).