Process for manufacturing single-site polyolefins

Details Process for manufacturing single-site polyolefins Process for manufacturing single-site polyolefins

2006-02-07

2006-02-07

Wu, David W. (Department: 1713)

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

Synthetic resins

Polymerizing in two or more physically distinct zones

C526S078000, C526S079000, C526S905000, C526S161000, C526S172000, C526S943000, C526S126000, C526S134000, C526S348500, C526S348600

Reexamination Certificate

active

06995216

ABSTRACT:
A dual olefin polymerization process is disclosed. The process uses a bridged indenoindolyl ligand-containing Group 4 transition metal complex and an activator. It is carried out in multiple stages or in multiple reactors. The same complex and the same activator are used in all stages or reactors. Different polyolefins are made in different stages or reactors by varying the monomer compositions, hydrogen concentrations, or both. The process of the invention produces polyolefins which have broad molecular weight distributions, composition distributions, or both.

REFERENCES:
patent: 5371053 (1994-12-01), Agapiou et al.
patent: 5442019 (1995-08-01), Agapiou et al.
patent: 5539124 (1996-07-01), Etherton et al.
patent: 5554775 (1996-09-01), Krishnamurti et al.
patent: 5637660 (1997-06-01), Nagy et al.
patent: 5747594 (1998-05-01), deGroot et al.
patent: 5902866 (1999-05-01), Nagy et al.
patent: 6127484 (2000-10-01), Cribbs et al.
patent: 6211311 (2001-04-01), Wang et al.
patent: 6232260 (2001-05-01), Nagy et al.
patent: 6372864 (2002-04-01), Brown
patent: 6756455 (2004-06-01), Nagy et al.
patent: 0 881 237 (1997-05-01), None
patent: WO 99/24446 (1999-05-01), None
patent: WO 03/008496 (2003-01-01), None
Buu-Hoï and Xuong, “Carcinogenic Nitrogen Compounds. Part XI,” J. Chem. Soc., 1952, p. 2225.

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