发明授权
- 专利标题: Hydraulic working oil composition for buffers
- 专利标题(中): 缓冲液液压油组合物
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申请号: US385348申请日: 1995-02-08
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公开(公告)号: US5536423A公开(公告)日: 1996-07-16
- 发明人: Toru Miyagawa , Mitsuo Okada
- 申请人: Toru Miyagawa , Mitsuo Okada
- 申请人地址: JPX Tokyo
- 专利权人: Nippon Oil Co., Ltd.
- 当前专利权人: Nippon Oil Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX6-037528 19940214
- 主分类号: C10M141/10
- IPC分类号: C10M141/10 ; C10M167/00 ; C10N30/06 ; C10N40/08 ; C10M137/08 ; C10M133/00
摘要:
A hydraulic working oil composition for buffers which comprises:a lubricating oil as a base oil,(A) at least one phosphorus-containing compound selected from the group consisting of a phosphoric acid ester having a specific structure, a phosphorous acid ester having a specific structure and a salt of-the phosphoric acid ester and/or the phosphorous acid ester with an aliphatic monoamine having 8-22 carbon atoms, and(B) at least one nitrogen-containing compound selected from the group consisting of an aliphatic polyamine having a specific structure and a salt of the aliphatic polyamine with an aliphatic acid having 6 carbon atoms, the compounds (A) and (B) being essential components added to said base oil.
公开/授权文献
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