Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-03-22
2005-03-22
Rabago, Roberto (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S134000, C526S160000, C526S161000, C526S166000, C526S172000, C526S943000
Reexamination Certificate
active
06870016
ABSTRACT:
Olefin polymerization processes using catalyst systems based on metallocenes and olefin, in particular, propylene polymers obtainable thereby. The metallocenes may be represented by the formula: wherein M1preferably is zirconium or hafnium; and R12is different from hydrogen.
REFERENCES:
patent: 5753769 (1998-05-01), Ueda et al.
patent: 5770753 (1998-06-01), Küber et al.
patent: 5789634 (1998-08-01), Sullivan et al.
patent: 5840644 (1998-11-01), Küber et al.
patent: 5936053 (1999-08-01), Fukuoka et al.
patent: 6500949 (2002-12-01), Campbell et al.
patent: 6686055 (2004-02-01), Tanaka et al.
patent: 2191661 (1997-02-01), None
patent: 2191661 (1997-06-01), None
patent: 0 629 632 (1994-12-01), None
patent: 0 646 624 (1995-04-01), None
patent: 0 704 461 (1996-04-01), None
patent: 0 704 463 (1996-04-01), None
patent: 0 776 913 (1997-06-01), None
patent: 0 816 395 (1998-01-01), None
patent: 0 846 696 (1998-06-01), None
patent: 0 775 148 (1999-08-01), None
patent: WO 9840331 (1998-09-01), None
patent: WO 9840416 (1998-09-01), None
patent: WO 9840419 (1998-09-01), None
patent: WO 9912943 (1999-03-01), None
patent: WO 9933881 (1999-07-01), None
patent: WO 9942497 (1999-08-01), None
patent: WO 0020462 (2000-04-01), None
patent: WO 0114388 (2001-03-01), None
U.S. Appl. No. 09/620,046, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B039A).
U.S. Appl. No. 09/620,359, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B039B).
U.S. Appl. No. 09/620,341, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B039C).
U.S. Appl. No. 09/619,751, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B039D).
U.S. Appl. No. 09/619,757, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B039E).
U.S. Appl. No. 09/620,613, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B039F).
U.S. Appl. No. 09/620,175, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040A).
U.S. Appl. No. 09/619,759, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040B).
U.S. Appl. No. 09/619,748, filed Jul. 19, 2001 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040C).
U.S. Appl. No. 09/620,304, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040D).
U.S. Appl. No. 09/620,522, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040E).
U.S. Appl. No. 09/619,752, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040F).
U.S. Appl. No. 09/619,750, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040G).
U.S. Appl. No. 09/619,749, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040H).
U.S. Appl. No. 09/620,303, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040I).
U.S. Appl. No. 09/619,764, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040J).
U.S. Appl. No. 09/620,302, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040K).
U.S. Appl. No. 09/620,198, filed Jul. 19, 2000 (Inventors Mathew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr. James R. Hart, James Charles Vizzini & Terry J. Burkhardt), entitled “Metallocene Compositions”. (2000B040L).
D.P. Krut′ko et al., “Synthesis and photoinduced isomerization of ansa-{η5, η5,-[1,1′-(1-silacyclopent-3-ene3-1m,1-diyl)bis(indenyl)]}-dichlorozirconium. The crystal structure of its meso form”—Russian Chemical Bulletinvol. 47 (11), Nov., 1998—pp. 2280-2285.
Woei-Min Tsai et al., “Silolene-Bridged Zirconocenium Polymerization Catalysts”Journal of Polymer Science, Part A: Polymer Chemistry,vol. 32, pp. 149-158 (1994).
U.S. Appl. No. Not Yet Assigned, filed Jun. 29, 2001 (Inventors Terry J. Burkhardt, James R. Hart, William T. Haygood, Jr., and Robert T. Li), entitled “Metallocene and Catalyst Compositions”. (2001B070).
Burkhardt Terry J.
Hart James R.
Haygood William T.
Li Robert T.
ExxonMobil Chemical Patents Inc.
Paige Schmidt
Rabago Roberto
LandOfFree
Polymerization process and polymer composition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymerization process and polymer composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymerization process and polymer composition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3451099