Transition metal compound, ligand system, catalyst system...

Details Transition metal compound, ligand system, catalyst system... Transition metal compound, ligand system, catalyst system...

2005-05-18

2009-08-04

Rábago, Roberto (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S127000, C526S160000, C526S170000, C525S240000

Reexamination Certificate

active

07569651

ABSTRACT:
A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 and position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.

REFERENCES:
patent: 4752597 (1988-06-01), Turner
patent: 5017714 (1991-05-01), Welborn, Jr.
patent: 5103030 (1992-04-01), Rohrmann et al.
patent: 5304614 (1994-04-01), Winter et al.
patent: 5414064 (1995-05-01), Lux et al.
patent: 5532396 (1996-07-01), Winter et al.
patent: 5543535 (1996-08-01), Lisowsky
patent: 5565534 (1996-10-01), Aulbach et al.
patent: 5612462 (1997-03-01), Lisowsky
patent: 5661096 (1997-08-01), Winter et al.
patent: 5770753 (1998-06-01), Küber et al.
patent: 5786432 (1998-07-01), Küber et al.
patent: 5840644 (1998-11-01), Küber et al.
patent: 6017841 (2000-01-01), Winter et al.
patent: 6051727 (2000-04-01), Küber et al.
patent: 6121182 (2000-09-01), Okumura et al.
patent: 6124231 (2000-09-01), Fritze et al.
patent: 6172168 (2001-01-01), Winter et al.
patent: 6242544 (2001-06-01), Küber et al.
patent: 6255506 (2001-07-01), Küber et al.
patent: 6255531 (2001-07-01), Fritz et al.
patent: 6271164 (2001-08-01), Fritze et al.
patent: 6329313 (2001-12-01), Fritze et al.
patent: 6350829 (2002-02-01), Lynch et al.
patent: 6365689 (2002-04-01), Ushioda et al.
patent: 6417302 (2002-07-01), Bohnen
patent: 6444606 (2002-09-01), Bingel et al.
patent: 6469114 (2002-10-01), Schottek et al.
patent: 6482902 (2002-11-01), Bohnen et al.
patent: 6492539 (2002-12-01), Bingel et al.
patent: 6509324 (2003-01-01), Franzini et al.
patent: 6583238 (2003-06-01), Göres et al.
patent: 6924248 (2005-08-01), Mihan et al.
patent: 7094727 (2006-08-01), Hwang et al.
patent: 196 06 167 (1997-08-01), None
patent: 196 22 207 (1997-12-01), None
patent: 198 04 970 (1999-08-01), None
patent: 198 13 657 (1999-09-01), None
patent: 0 129 368 (1984-12-01), None
patent: 0 302 424 (1989-02-01), None
patent: 0 320 762 (1989-06-01), None
patent: 0 416 815 (1991-03-01), None
patent: 0 537 686 (1993-04-01), None
patent: 0 576 970 (1994-01-01), None
patent: 0 601 830 (1994-06-01), None
patent: 0 659 757 (1995-06-01), None
patent: 0 669 340 (1995-08-01), None
patent: 0 754 731 (1997-01-01), None
patent: 0 811 627 (1997-12-01), None
patent: 0 824 112 (1998-02-01), None
patent: 0 824 113 (1998-02-01), None
patent: 0 834 519 (1998-04-01), None
patent: 0 924 223 (1999-06-01), None
patent: WO 97/11775 (1997-04-01), None
patent: WO 98/40331 (1998-03-01), None
patent: WO 98/40416 (1998-09-01), None
patent: WO 99/06414 (1999-02-01), None
patent: WO 99/09079 (1999-02-01), None
patent: WO 99/40129 (1999-08-01), None
patent: WO 00/44799 (2000-08-01), None
patent: WO 01/46274 (2001-06-01), None
patent: WO 01/96418 (2001-12-01), None
Wild, “Temperature Rising Elution Fractionation”,Advances in Polymer Science, Sprin ger Verlag 1990, pp. 1-47.
Ewen et al., “Expanding the Sope of Metallocene Catalysis: Beyong Indenyl and furenyl Derivatives”Metalorganic Catalysts for Synthesis and polymerization (1999), pp. 1150-1169.
Pasynkiewics, “Alumoxanes: Synthesis, Structures, Complexes and Reactions”, Polyhedron 9(2/3), 429-453 (1990).
Harlan et al., “tert-Butylaluminum Hydroxides and Oxides: Structural Relationship between Alkylalumoxanes and Alumina Gels”, Organomet. 13, 2957-2969 (1994).
Harlan et al., “Three-Coordinate Aluminum Is Not a Prerequisite for Catalytic Activity in the Zircocene-Alumoxane Polymerization of Ethylene”J. Am. Chem. Soc. 117, 6465-6474 (1995).
Wild et al., “ansa-Metallocene Derivatives: Synthesis and Crystal Structure of a Chiralansa-Zircocene Derivative . . . ”J. Organomet. Chem. 288, 63-67 (1985).
Spaleck et al., “New Bridged Zircocenes for Olefin Polymerization: Binuclear and Hybrid Structures”J. Molec. Cat. A: Chem. 128, 279-287 (1998).
Wild et al., “ansa-Metallocene Derivatives: Synthesis and Molecular Structures of Chiralansa-Titanocene Derivatives . . . ”J. Organomet. Chem. 232, 233-247 (1982).
Brintzinger et al., “Stereospezifische Olefinpolymerisation mit chiralen Metallocenkatalysatoren”Angew. Chem. 107, 1255-1283 (1995).

Affiliated with

Also associated with

Rating

Transition metal compound, ligand system, catalyst system... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transition metal compound, ligand system, catalyst system..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transition metal compound, ligand system, catalyst system... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4096001