申请人:Citizen Holdings Co., Ltd.
公开号:EP2949734A1
公开(公告)日:2015-12-02
[Problem] To provide a lubricating oil composition for a timepiece, said composition being excellent in durability. [Solution] The lubricating oil composition for a timepiece according to the present invention contains a lubricant component (A) containing a base oil (A1), at least one antiwear agent (B) selected from a neutral phosphate ester and a neutral phosphite ester, and an antioxidant (C), and is characterized in that the total acid number of the composition is not more than 0.8 mgKOH/g, the antiwear agent (B) is contained in an amount of 0.1 to 15 parts by mass based on 100 parts by mass of the lubricant component (A), the antioxidant (C) is contained in an amount of 0.01 to 3 parts by mass based on 100 parts by mass of the lubricant component (A), and the composition contains a diphenylamine derivative (C-1) represented by the following general formula (c-1) and a hindered amine compound (C-2) represented by the following general formula (c-2) as the antioxidants (C).
[问题] 提供一种用于钟表的润滑油组合物,所述组合物具有优异的耐用性。[解决方案] 根据本发明的钟表润滑油组合物包含一种含有基础油(A1)的润滑剂成分(A)、至少一种选自中性磷酸酯和中性亚磷酸酯的抗磨剂(B)以及一种抗氧化剂(C),其特征在于组合物的总酸值不超过 0.8 mgKOH/g,抗磨剂(B)的含量为 0.抗磨剂(B)的含量为 0.1 至 15 份(以 100 份润滑剂组分(A)的质量为基准),抗氧化剂(C)的含量为 0.01 至 3 份(以 100 份润滑剂组分(A)的质量为基准),并且该组合物包含由以下通式(c-1)表示的二苯胺衍生物(C-1)和由以下通式(c-2)表示的受阻胺化合物(C-2)作为抗氧化剂(C)。