| 摘要 |
Boric acid complexes Compounds of formula I (I) wherein R and R1 are identical or different and are a radical of the formula where R2, R3 and R4 are each independently C1-C18alkyl and together contain not more than 22 carbon atoms, and R3 and R4 are also hydrogen, or wherein R and R1 are C5-C6cycloalkyl, unsubstituted or C1-C4alkyl-substituted phenyl, or naphthyl, C7-C14aralkyl, furfuryl or thienyl, and wherein Y is -S-, -O-, -NH-, -N(C1-C12alkyl)-, -CH2-, -CH(C1-C12alkyl)- or -C(C1-C12alkyl)2- and X? is 1 equivalent of a metallic cation selected from the group consisting of Li?, Na?, K?, Mg2?, Ca2?, Ba2?, Zn2?, Mn2?, Ni2?, Fe3?, Fe2?, Co2?, Cu2?, Al3?, Cr3?, VO3?, ZrO2?, MoO22? and TiO2?, are suitable as additives for lubricants and hydraulic oils and bring about an improvement in the extreme-pressure properties and in the anti-wear properties. |
