| 发明名称 |
LUBRICANT COMPOSITION AND A METHOD TO LUBRICATE A MECHANICAL DEVICE |
| 摘要 |
A lubricant composition comprising a polyoxypropylene polymer, the polyoxypropylene polymer having been prepared by polymerizing propylene oxide with an initiator containing a labile hydrogen in the presence of a double metal cyanide (DMC) catalyst, the polyoxypropylene polymer having a number average molecular weight ranging from 5,000 g/mol to 20,000 g/mol, a kinematic viscosity at 40° C. ranging from 1,200 to 20,000 cSt, a viscosity index equal to or greater than 230, and a degree of unsaturation equal to or less than 0.05 meq/g is provided. Further provided is a method for lubricating a mechanical device. |
| 申请公布号 |
US2016237367(A1) |
申请公布日期 |
2016.08.18 |
| 申请号 |
US201415029314 |
申请日期 |
2014.10.24 |
| 申请人 |
DOW BRASIL SUDESTE INDUSTRIAL LTDA |
发明人 |
Marques Yuri Alencar;Oliveira Abel de |
| 分类号 |
C10M107/34;C08G65/12 |
主分类号 |
C10M107/34 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lubricant composition comprising a polyoxypropylene polymer, the polyoxypropylene polymer having been prepared by polymerizing propylene oxide with an initiator containing a labile hydrogen in the presence of a double metal cyanide (DMC) catalyst, the polyoxypropylene polymer having a number average molecular weight ranging from 5,000 g/mol to 20,000 g/mol, a kinematic viscosity at 40° C. ranging from 1,200 to 20,000 cSt, a viscosity index equal to or greater than 230, and a degree of unsaturation equal to or less than 0.05 meq/g. |
| 地址 |
Santo Amaro BR |
