Imino-amide catalyst compositions for the polymerization of...

Details Imino-amide catalyst compositions for the polymerization of... Imino-amide catalyst compositions for the polymerization of...

2005-07-19

2005-07-19

Sample, David (Department: 1755)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C556S020000, C556S028000, C556S032000, C556S042000, C556S045000, C556S051000, C556S057000, C556S001000, C556S117000, C556S136000, C556S146000

Reexamination Certificate

active

06919467

ABSTRACT:
The present invention provides a catalyst precursor and catalyst system comprising the precursor, an embodiment of the precursor is selected from the following structures:wherein T is a bridging group; M is selected from Groups 3 to 7 atoms, and the Lanthanide series of atoms the Periodic Table of the Elements; Z is a coordination ligand; each L is a monovalent, bivalent, or trivalent anionic ligand; X and Y are each independently selected from nitrogen, oxygen, sulfur, and phosphorus; R is a non-bulky substituent that has relatively low steric hindrance with respect to X; and R′ is a bulky substituent that is sterically hindering with respect to Y.

REFERENCES:
Cotton, Frank Albert and Wilkinson, Geoffrey,Advanced Inorganic Chemistry A Comprehensive Text, John Wiley & Sons, 776-778, 790, 792-793 (1980).

Affiliated with

Also associated with

Rating

Imino-amide catalyst compositions for the polymerization of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Imino-amide catalyst compositions for the polymerization of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imino-amide catalyst compositions for the polymerization of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3384560