Process for co-polymerization of propylene and ethylene

Details Process for co-polymerization of propylene and ethylene Process for co-polymerization of propylene and ethylene

1997-04-22

1998-08-04

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526153, 526160, 526164, 526348, 526905, C08F 4648, C08F21006

Patent

active

057895023

ABSTRACT:
The present invention provides a process for control of desired properties in the polymer product. The catalyst system used in the process includes a supported metallocene catalyst precursor in combination with an oxyorganoaluminum. The process can be applied to the co-polymerization of propylene and ethylene. The randomness of the ethylene incorporation of the co-polymer product is increased as the amount of ethylene in the feed is increased. The amount of ethylene in the feed is up to 6 wt. % with a resulting amount of ethylene incorporated into the copolymer product up to 4 mole %.

REFERENCES:
patent: 4897455 (1990-01-01), Welborn, Jr.
patent: 5308816 (1994-05-01), Tsutsui et al.
patent: 5616665 (1997-04-01), Jejelowo et al.

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