Two-stage process and system for forming high viscosity...

Details Two-stage process and system for forming high viscosity... Two-stage process and system for forming high viscosity...

2009-08-28

2011-12-20

Wu, David W (Department: 1762)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

C585S510000, C585S520000, C585S522000

Reexamination Certificate

active

08080699

ABSTRACT:
A final polymer product is formed using a two-stage process and system. In the first stage, a catalyst system is used to polymerize an alpha-olefin monomer to form an effluent. In the second stage, additional alpha-olefin monomer is supplied and is polymerized in the presence of the effluent from the first stage. The second stage produces the final polymer product, which may have a lower molecular weight and viscosity than the polymer formed in the first stage. The final polymer product may be used as a base stock for lubricant compositions.

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