Gas-phase process for the polymerization of alpha-olefins

Details Gas-phase process for the polymerization of alpha-olefins Gas-phase process for the polymerization of alpha-olefins

2008-12-18

2011-12-27

Teskin, Fred M (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S901000, C585S251000, C585S518000, C585S818000

Reexamination Certificate

active

08084557

ABSTRACT:
A continuous gas-phase process for the polymerization of alpha-olefins, in particular ethylene, comprising passing an alpha-olefin monomer stream through an oil filter in order to reduce the amount of oil to less than 8 ppm, and polymerizing the thus purified monomer feed in gas-phase reactor; the reduction of the amount of oil improves the operability of the plant over time.

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