| 摘要 |
The present invention provides a lubricant for magnetic recording medium which comprises, as an effective component, a phosphazene compound of formula ÄN=P ÄO(C6H4) - (A)z-RÜ a ÄOCH2-(B)xHÜ bÜy wherein A is -C6H4- or -OC6H4-, B is fluorine-containing alkylene group, R is hydrogen atom, fluorine atom, C1-4 alkyl, C1-4 alkoxy or C1-4 haloalkyl, a and b are a real number of 0 to 2, satisfying a+b=2, x is 1, 2, 3 or 4, y is 3 or 4, and z is 0 or 1. |
