| 主权项 |
1. An axle lubricating oil composition comprising:
(i) a polyalphaolefin having a kinematic viscosity at 100° C. of from 2 to 40 cSt when measured in accordance with ASTM D445, with said polyalphaolefin being present in an amount of from 20 to 60 parts by weight based on 100 parts by weight of said axle lubricating oil composition; and (ii) an alkoxylated polytetrahydrofuran of general formula (II) present in an amount of from 10 to 40 parts by weight based on 100 parts by weight of said axle lubricating oil composition wherein,
m is an integer in the range of ≧1 to ≦50,m′ is an integer in the range of ≧1 to ≦50,(m+m′) is an integer in the range of ≧1 to ≦90,n is an integer in the range of ≧0 to ≦75,n′ is an integer in the range of ≧0 to ≦75,p is an integer in the range of ≧0 to ≦75,p′ is an integer in the range of ≧0 to ≦75,k is an integer in the range of ≧2 to ≦30,R1 denotes an unsubstituted, linear or branched, alkyl radical having 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 or 28 carbon atoms,R2 denotes —CH2—CH3,R3 is identical or different and denotes a hydrogen atom or —CH3, and wherein the concatenations denoted by k are distributed to form a block polymeric structure and the concatenations denoted by p, p′, n, n′, m and m′ are distributed to form a block polymeric structure or a random polymeric structure. |
