Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2005-03-08
2005-03-08
Bell, Mark L. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S152000, C502S102000, C502S103000, C526S114000, C526S131000, C525S421000
Reexamination Certificate
active
06864210
ABSTRACT:
A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises an activator and a bimetallic complex that incorporates two Group 3 to 10 transition metal atoms, which may be the same or different, and a neutral or anionic indigoid ligand. By proper selection of the indigoid skeleton and by modifying its substituents and transition metal centers, polyolefin makers can fine-tune the bimetallic complexes to control activity, enhance comonomer incorporation, and optimize polymer properties.
REFERENCES:
patent: 622139 (1899-03-01), Gifford
patent: 662073 (1900-11-01), Koetschet
patent: 718340 (1903-01-01), Graul
patent: 765576 (1904-07-01), Graul
patent: 836309 (1906-11-01), Engi
patent: 841003 (1907-01-01), Engi
patent: 848354 (1907-03-01), Engi
patent: 856687 (1907-06-01), Engi
patent: 867306 (1907-10-01), Schirmacher et al.
patent: 867715 (1907-10-01), Engi
patent: 872115 (1907-11-01), Engi
patent: 872227 (1907-11-01), Engi
patent: 888852 (1908-05-01), Schirmacher et al.
patent: 892897 (1908-07-01), Schirmacher et al.
patent: 899863 (1908-09-01), Engi et al.
patent: 916030 (1909-03-01), Schmidt et al.
patent: 949592 (1910-02-01), Münch
patent: 963813 (1910-07-01), Schmidt et al.
patent: 1133031 (1915-03-01), Hutzler
patent: 1211413 (1917-01-01), Cone
patent: 1564218 (1925-12-01), Dow
patent: 1590685 (1926-06-01), Herz et al.
patent: 1954707 (1934-04-01), Lubs et al.
patent: 4966977 (1990-10-01), Takaki et al.
patent: 5153157 (1992-10-01), Hlatky et al.
patent: 5198401 (1993-03-01), Turner et al.
patent: 5241025 (1993-08-01), Hlatky et al.
patent: 5414180 (1995-05-01), Geerts et al.
patent: 5648440 (1997-07-01), Sugano et al.
patent: 5686625 (1997-11-01), Kos
patent: 5847059 (1998-12-01), Shamshoum et al.
patent: 6010974 (2000-01-01), Kim et al.
patent: 6143844 (2000-11-01), Hokkanen et al.
patent: 6211311 (2001-04-01), Wang et al.
patent: 6521716 (2003-02-01), Leake
patent: 6693157 (2004-02-01), Schuchardt
patent: 20030032549 (2003-02-01), Vogel
patent: 1951321 (1971-01-01), None
Reddy et al.,Organometallics 8(1989) 2107.
Jungling et al.,J. Organometal, Chem. 460(1993) 191.
Soga et al.,J. Mol. Catal. A 128(1998) 273.
Noh et al.,J. Organometal, Chem 580(1999).
Colour Index International, 4th Edition Online—www.colour-index.org.
J. Nakayama et al.,Chem. Lett. (1977) 77.
H. Junek et al.,Chem. Ber. 110(1977) 2276.
M. Augustin et al.,J. Prakt. Chem. 321(1979) 205.
Schlosser et at.,Angew. Chem., I.E. Engl. 12(1973) 508.
Lochmann et al.,Tetrahedron Lett.(1966) 257.
R. Gompper et al.,Chem. Ber. 98(1965) 1369.
Masatoshi et al. (XP002284956 from STN 2000: 152663) referencing Japanese Patent No. 2000 072810.
Hlatky Gregory G.
Schuchardt Jonathan L.
Bell Mark L.
Brown Jennine M.
Equistar Chemicals LP
Schuchardt Jonathan L.
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