Catalyst System for the trimerization of olefins

Details Catalyst System for the trimerization of olefins Catalyst System for the trimerization of olefins

2006-06-06

2006-06-06

Wu, David W. (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S161000, C526S170000, C526S172000, C526S134000, C526S126000, C526S144000

Reexamination Certificate

active

07056995

ABSTRACT:
The invention relates to a catalyst system for the selective trimerization of olefins, which system is based on a titanium complex of formula (Cp-B(R)nAr)TiR13, wherein:Cp is a cyclopentadienyl type ligand, optionally substituted,B is a bridging group, based on a single atom selected from the groups 13 to 16 inclusive of the Periodic System,Ar is a aromatic group, optionally substituted,R is, independently, hydrogen, or a hydrocarbon residue, optionally being substituted and optionally containing heteroatoms, or groups R and B are joined together to form a ring,n is an integer equal to the (valency of B minus 2), andR1is a mono-anionic group, and further comprises an activator. The present catalyst system obviates the use of toxic chromium compounds.

REFERENCES:
patent: 5043515 (1991-08-01), Slaugh et al.
patent: 93101111.8 (1993-01-01), None
patent: 696 263 (1997-08-01), None
patent: 94/25416 (1994-11-01), None
patent: WO 96/27439 (1996-09-01), None
Saβmannshausen et al. J. Organomet. Chem, 1999, 592, 84-94.
Flores et al. Organometallics 1996, 15, 4944-4950.
Lancaster et al. Organometallics 2000, 19, 1599-1608.
Sassmannshausen J. et al. “Half-Sandwich Complexes of Titanium and Zirconium with Pendant Phenyl Substituents. The Influence of ANSA-ARYL Coordination on the Polymerisation Activity of Half-Sandwich Catalysts”.Journal of Organometallic Chemistry, vol. 592, 1999, paves 84-94.

Affiliated with

Also associated with

Rating

Catalyst System for the trimerization of olefins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalyst System for the trimerization of olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst System for the trimerization of olefins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3638985