申请人:Kawahara Yasuyuki
公开号:US20060019840A1
公开(公告)日:2006-01-26
Disclosed herein is a lubricating oil for bearings comprising
(a) a diester represented by General Formula (1)
wherein R
1
and R
2
are the same or different, and each represents a C
3
-C
17
linear alkyl group; A represents a C
2
-C
10
linear alkylene group or A represents a branched alkylene group consisting of a linear alkylene group, the linear alkylene group being the principal chain, and one or more alkyl groups (branches) bonded to the linear alkylene group, wherein the total number of carbon atoms of the linear alkylene group and the one or more alkyl groups is 3 to 10; with the proviso that when A is a branched alkylene group and has two or more alkyl groups, the two or more alkyl groups are not bonded to the same carbon atom; or a mixture of the diester with an additional base oil and
(b) at least one member selected from the group consisting of phenol-based antioxidants and amine-based antioxidants, and optionally containing (c) at least one member selected from the group consisting of phosphorus-based compounds and aliphatic linear monocarboxylic acids, and further optionally containing (d) at least one member selected from the group consisting of benzotriazole-based compounds and gallic acid-based compounds.
本文公开的轴承润滑油包括
(a) 通式(1)代表的二酯
其中 R
1
和 R
2
相同或不同,且各自代表一个 C
3
-C
17
直链烷基;A 代表 C
2
-C
10
直链烷基或 A 代表支链烷基,由直链烷基(直链烷基为主链)和一个或多个与直链烷基键合的烷基(支链)组成,其中直链烷基和一个或多个烷基的碳原子总数为 3 至 10;但条件是,当 A 为支链烷基并具有两个或多个烷基时,两个或多个烷基不键合在同一碳原子上;或二酯与另一种基础油的混合物,以及
(b) 至少一种选自酚基抗氧化剂和胺基抗氧化剂的成员,可选择含有 (c) 至少一种选自磷基化合物和脂族线性单羧酸的成员,还可选择含有 (d) 至少一种选自苯并三唑基化合物和没食子酸基化合物的成员。