发明授权
- 专利标题: Phosphorus-free multifunctional additives for lubricants
- 专利标题(中): 无磷无机润滑剂多功能添加剂
-
申请号: US09503018申请日: 2000-02-11
-
公开(公告)号: US06255259B1公开(公告)日: 2001-07-03
- 发明人: Hugo Camenzind , Alfred Dratva , Peter Hänggi
- 申请人: Hugo Camenzind , Alfred Dratva , Peter Hänggi
- 优先权: CH1823/97 19970730
- 主分类号: C07D28512
- IPC分类号: C07D28512
摘要:
Suitable lubricant additives are the compounds of formulae wherein the substituents and groups have the following preferred meanings: R1=H; R2=methyl or tert-butyl; R3=tert-butyl; s=0, 1 or 2; R4=—A—[(C6H2)(methyl or tert-butyl)(OH)(tert-butyl)]; A=—CH2CH2O—(C═O)—CH2CH2— or —CH2CH(CH3)—O—(C═O)—CH2CH2—.
信息查询