Cocatalyst compositions

Details Cocatalyst compositions Cocatalyst compositions

2005-06-21

2005-06-21

Nazario-Gonzalez, Porfirio (Department: 1621)

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

Organic compounds

Heavy metal containing

C556S012000, C556S173000, C556S402000, C502S103000, C502S117000, C502S154000, C526S134000, C526S163000, C568S001000

Reexamination Certificate

active

06909008

ABSTRACT:
An activator for olefin polymerization catalysts is disclosed. One aspect of the activator is that it comprises a group-13 central atom connected to at least one fluorinated aryl ring that is itself substituted with a silyl acetylenic group. Some embodiments employ a neutral activator and others employ the activator as an anion coupled with a ligand-abstracting cation. These activators are discrete molecules.

REFERENCES:
patent: 5198401 (1993-03-01), Turner et al.
patent: 5278119 (1994-01-01), Turner et al.
patent: 5502017 (1996-03-01), Marks et al.
patent: 5869723 (1999-02-01), Hinokuma et al.
patent: 2004/0110631 (2004-06-01), Rodriguez
patent: 0 277 003 (1988-03-01), None
patent: 0 277 004 (1988-03-01), None
Wrackmeyer et al., J. Organomet. Chem., vol. 562, No. 2, pp. 207-215 (1998).
Imamoto et al., Tetrahedron Letters, Vo. 37, No. 4, pp. 503-504 (1996).
Yamaguchi et al., Organic Letters, vol. 2, No. 26, pp. 4129-4132 (2000).
Krivokapic et al., Advanced Materials, vol. 13, No. 9, pp. 652-656 (2001).
Strauss, Steven. “The Search for Larger and More Weakly Coordinating Anions,”Chem. Rev.,vol. 93, pp. 927-942, (1993).
Quyoum et al., “A Carbocationic Olefin Polymerization Initiator Masquerading as a Ziegler-Natta Catalyst,”J. Am. Chem. Soc.,vol. 116, pp. 6435-6436, (1994).
Krivokapic et al., “Meso-Tetra-Alkynyl Porphyrins for Optical Limiting—A Survey of Group III and IV Metal Complexes,”Advanced Materials,vol. 13, No. 9, pp. 652-656, (2001).
Hagelee et al., “The Influence of Silicon on the Formation of (Z/E) —Tetrasubstituted Ethylenes Via 1-Alkynylborates2”,Syn. React. Inorg. Metal-Org. Chem.,vol. 7(1), pp. 53-67 (1977).
Imamoto et al., “Synthesis and Properties of Trifluoromethanesulfonyloxy Derivatives of Tricyclohexylphosphine-Borane”,Tetrahedron Letters,vol. 37, No. 4, pp. 503-504 (1996).
Wrackmeyer et al., “1,6-Dihydro-1,6-disilapentalene derivatives by 1,1-organoboration of triynes”,Journal of Organometallic Chemistry,vol. 562, pp. 207-215, (1998).
Yamaguchi et al., “Tridurylboranes Extended by Three Arylethynyl Groups as a New Family of Boron-Based π-Electron Systems”,Organic Letters,vol. 2, No. 26, pp. 4129-4132, (2000).

Affiliated with

Also associated with

Rating

Cocatalyst compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cocatalyst compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cocatalyst compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3471604