Process of making polypropylene from intermediate grade...

Details Process of making polypropylene from intermediate grade... Process of making polypropylene from intermediate grade...

2006-06-27

2006-06-27

Teskin, Fred M. (Department: 1713)

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

Synthetic resins

Removing and recycling removed material from an ongoing...

C526S075000, C526S077000, C585S327000, C585S329000, C585S518000

Reexamination Certificate

active

07067597

ABSTRACT:
This invention concerns using an intermediate grade propylene stream as feed to a polypropylene forming reaction system. The intermediate grade propylene stream is preferably recovered form the olefin product of an oxygenate to olefins reaction process, and low in dimethyl ether content.

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