发明申请
- 专利标题： AUTOMOBILE TRANSMISSION OIL COMPOSITION WITH IMPROVED LOW-TEMPERATURE TRANSMISSION PERFORMANCE
- 专利标题（中）： 具有改进的低温传动性能的汽车传动油组合物
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申请号： US12911219申请日： 2010-10-25
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公开(公告)号： US20120028857A1公开(公告)日： 2012-02-02
- 发明人: Sung Uk Lee
- 申请人： Sung Uk Lee
- 申请人地址： KR Seoul KR Seoul
- 专利权人： KIA MOTORS CORPORATION,HYUNDAI MOTOR COMPANY
- 当前专利权人： KIA MOTORS CORPORATION,HYUNDAI MOTOR COMPANY
- 当前专利权人地址： KR Seoul KR Seoul
- 优先权： KR10-2010-0074076 20100730
- 主分类号： C10M169/04
- IPC分类号： C10M169/04
摘要：
The present invention provides a manual transmission oil composition containing a predetermined amount of polyalphaolefin (PAO) synthetic base oil and a predetermined amount of polyalkylmethacrylate having a number-average molecular weight of 300,000 to 400,000 as a viscosity index improver and thus having a high viscosity even at high temperatures and a low viscosity at low temperatures compared to other manual transmission oils having the same viscosity grade (SAE 75W85 grade).