发明申请
- 专利标题: Method of preventing corrosion of copper and silver surfaces by corrosive gases
- 专利标题(中): 通过腐蚀性气体防止铜和银表面腐蚀的方法
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申请号: US12762527申请日: 2010-04-19
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公开(公告)号: US20100298182A1公开(公告)日: 2010-11-25
- 发明人: Akihiko Shimua , Tetsuhiro Kitahara , Tatsuya Hashimoto
- 申请人: Akihiko Shimua , Tetsuhiro Kitahara , Tatsuya Hashimoto
- 申请人地址: JP Tokyo
- 专利权人: NOK KLUBER CO., LTD.
- 当前专利权人: NOK KLUBER CO., LTD.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2004-187354 20040625; JP2007-199089 20070731
- 主分类号: C10M169/00
- IPC分类号: C10M169/00
摘要:
A lubricating grease composition, which comprises a base oil consisting of a mixture of 100 parts by weight of at least one of a perfluoropolyether oil (A), represented by RfO[CF(CF3)CF2O]p(CF2CF2O)qRf (where Rf is a perfluoroalkyl group having 1-5 carbon atoms, p+q=2-200, q/p=0-2, and q may be 0), and a perfluoropolyether oil (B), represented by F(CF2CF2CF2O)sC2F5 (where s=2-100), and 0-100 parts by weight of at least one of a perfluoropolyether oil (C), represented by RfO(CF2CF2O)m(CF2O)nRf (where m+n=3-200 and m:n=10-90:90-10), and a perfluoropolyether oil (D), represented by RfO[CF(CF3)CF2O]a(CF2CF3O)b(CF2O)cRf (where a+b+c=3-200, b is 0 or an integer of 1 or more, and c is an integer of 1 or more), preferably further admixed with a thickening agent, can suppress corrosion of metallic materials by corrosive gases and also has a good heat resistance.
公开/授权文献
- US08067344B2 Lubricating grease composition 公开/授权日:2011-11-29
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