发明授权
- 专利标题: Modified VI improvers
- 专利标题(中): 改良VI改良剂
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申请号: US504058申请日: 1990-04-02
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公开(公告)号: US4970009A公开(公告)日: 1990-11-13
- 发明人: Arie Van Zon , Terence W. Bates
- 申请人: Arie Van Zon , Terence W. Bates
- 申请人地址: TX Houston
- 专利权人: Shell Oil Company
- 当前专利权人: Shell Oil Company
- 当前专利权人地址: TX Houston
- 优先权: GBX8826026 19881107
- 主分类号: C10M135/10
- IPC分类号: C10M135/10 ; C08F8/34 ; C08F297/04 ; C10M143/00 ; C10M143/10 ; C10M143/12 ; C10M151/02 ; C10M151/04 ; C10M159/12 ; C10N30/02 ; C10N40/25 ; C10N60/10 ; C10N70/00
摘要:
Lubricating oil composition comprising a major proportion of a mineral lubricating oil and, as viscosity index improver, a hydrogenated block copolymer or olefin copolymer functionalized by the presence of carboxyl groups attached to the polymer chain by a sulphonamide linkage.
公开/授权文献
- US5533545A Drain system 公开/授权日:1996-07-09
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