发明名称 |
SHEAR-STABLE HIGH VISCOSITY POLYALPHAOLEFINS |
摘要 |
<p>A polyalphaolefin polymer, having a kinematic viscosity at 100° C. of 135 cSt or greater, is shear stable. The polymer either has not more than 0.5 wt % of the polymer having a molecular weight of greater than 60,000 Daltons, or after being subjected to twenty hours of taper roller bearing testing, the polymer has a kinematic viscosity loss of less than 9%. Such a shear stable polyalphaolefin is obtained by either mechanical breakdown of a high viscosity polyalphaolefin or by a selective catalyst system used in oligomerization or polymerization of the feedstock.</p> |
申请公布号 |
EP2601225(A4) |
申请公布日期 |
2014.02.12 |
申请号 |
EP20110814963 |
申请日期 |
2011.06.30 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
WU, MARGARET, M.;STAVENS, KEVIN, B.;HAN, WENNING, W.;PATIL, ABHIMANYU, O. |
分类号 |
C08F10/14;C08L23/18;C10M143/08 |
主分类号 |
C08F10/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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