Title:
シンジオタクチックプロピレンポリマーおよび同を含む潤滑油
Document Type and Number:
Japanese Patent JP6910331
Kind Code:
B2
Abstract:
This disclosure relates to syndiotactic polymers containing units derived from propylene and units derived from C4 to C20 alpha olefins. The polymers can be prepared is slurry or solution polymerization processes using a zirconium-containing metallocene catalyst system. The polymers have a melt flow rate as determined by ASTM D-1238 (230° C., 2.16 kg) of from about 0.1 to about 20 g/10 min. The syndiotactic polymers are useful as viscosity index improvers.
Inventors:
Diaz, Anthony Jay
Kanich, Joan M
Fern, Lee Pao Oh
Rodriguez, George
Chowder, Jean-Rock
Kanich, Joan M
Fern, Lee Pao Oh
Rodriguez, George
Chowder, Jean-Rock
Application Number:
JP2018210378A
Publication Date:
July 28, 2021
Filing Date:
November 08, 2018
Export Citation:
Assignee:
ExxonMobil Chemical Patents, Inc.
International Classes:
C10M143/04; C08F4/6192; C08L23/10; C10M143/08
Domestic Patent References:
| JP2013506036A | ||||
| JP2013173955A | ||||
| JP4175317A | ||||
| JP2013515145A | ||||
| JP2011530617A | ||||
| JP2009074068A | ||||
| JP2013249399A |
Foreign References:
| US20130203640 |
Attorney, Agent or Firm:
Yuzo Yamazaki
Toshiaki Akamatsu
Tadao Naito
Chihiro Imai
Park Ji-un
Toshiaki Akamatsu
Tadao Naito
Chihiro Imai
Park Ji-un