| abstract |
BIS-METHYLENE AMIDES OF PHOSPHORIC OR PHOSPHONIC ACID, AND THEIR THIO DERIVATIVES, USEFUL AS LUBRICANT ADDITIVES HAVING ANTIOXIDANT AND THERMAL-STABILIZING PROPERTIES, OF THE FORMULA: R1-C(-R2)=N-P(=Z)(-X)-N=C(-R3)-R4 WHEREIN R1-R4, TAKEN ALONE, ARE THE SAME OR DIFFERENT AND ARE ALKYL, CYCLOHEXYL, PHENYL, MONO- OR DI-CHLOROOR BROMOPHENYL, OR ALKYLPHENYL, OR R1 AND R2, TAKEN TOGETHER, OR R3 AND R4, TAKEN TOGETHER, ARE ALKYLENE, X IS ALKYL, CYCLOHEXYL, PHENYL, OR ALKYLPHENYL BOUND DIRCTLY TO PHOSPHORUS OR BY WAY OF AN OXYGEN OR SULFUR ATOM, OR MORPHOLINO OR DIALKYLAMINO, AND Z IS OXYGEN OR SULFUR. |