| 摘要 |
A phosphorus compound represented by the following formula (I), (II), or (III) wherein Z<1>, Z<2>, and Z<3> each represents a cycloalkane ring, cycloalkene ring, polycyclic aliphatic hydrocarbon ring, or aromatic hydrocarbon ring; R represents halogeno, hydroxyl, carboxyl, halocarboxyl, alkyl, alkoxy, alkenyl, or aryl; A represents a polyvalent group corresponding to an alkane; Y<1>, Y<2>, and Y<3> each represents -O-, -S-, or -NR<1>- (R<1> is hydrogen or alkyl); k is an integer of 1 to 6; m is an integer of 0 to 2; n is an integer of 1 or larger; q is an integer of 0 to 5; r is 0 or 1; and s is an integer of 1 to 4. The phosphorus compound has excellent heat resistance and is useful as a flame retardant, plasticizer, or stabilizer.
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