Invention Grant
US5436379A Base oil for shear stable multi-viscosity lubricants and lubricants
therefrom
失效
用于剪切稳定的多粘度润滑剂的基础油及其润滑剂
- Patent Title: Base oil for shear stable multi-viscosity lubricants and lubricants therefrom
- Patent Title (中): 用于剪切稳定的多粘度润滑剂的基础油及其润滑剂
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Application No.: US181073Application Date: 1994-01-14
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Publication No.: US5436379APublication Date: 1995-07-25
- Inventor: William J. Heilman , Clifford G. Venier
- Applicant: William J. Heilman , Clifford G. Venier
- Applicant Address: TX Houston
- Assignee: Pennzoil Products Company
- Current Assignee: Pennzoil Products Company
- Current Assignee Address: TX Houston
- Main IPC: C10M107/02
- IPC: C10M107/02 ; C10M111/04 ; C10M169/04 ; C10M107/08
Abstract:
Fully synthetic lubricating base oil compositions are formulated from blends of 50-97 wt % of synthetic hydrocarbons and 3-30 wt % isobutylene oligomers. The lubricating base oil composition have constant viscosity indexes which are higher than those of the components used to form the compositions. The synthetic hydrocarbon and isobutylene oligomers are combinable in various amounts with conventional additives to form multi-grade engine lubricants, which are shear stable.
Public/Granted literature
- US4319409A Apparatus for drying chlorinated polymers Public/Granted day:1982-03-16
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