Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2004-08-03
2009-06-16
Lu, Caixia (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S156000, C526S160000, C526S165000, C526S943000, C502S123000, C502S152000, C502S155000
Reexamination Certificate
active
07547751
ABSTRACT:
The invention related to a process for the polymerization of at least one aliphatic C2-20or aromatic C4-20hydrocarbyl mono- or multiolefin in the presence of a catalyst and an aluminum comprising co-catalyst, wherein the catalyst comprises a composition of a metal-organic reagent, a spectator ligand and optionally at least one equivalent of a hydrocarbylating agent. The invention further relates to a polymer obtainable by the process of the invention.
REFERENCES:
patent: 6245871 (2001-06-01), Mackenzie et al.
patent: 6555634 (2003-04-01), Klosin et al.
patent: 2001/0051587 (2001-12-01), Williams
patent: 2003/0004286 (2003-01-01), Klosin et al.
patent: 2003/0092563 (2003-05-01), Gao et al.
patent: 2003/0181317 (2003-09-01), Tagge et al.
patent: 2 243 726 (2000-01-01), None
patent: 0 644 206 (1995-03-01), None
patent: 0 874 005 (1998-10-01), None
patent: 0 881 233 (1998-12-01), None
patent: 0 940 408 (1999-09-01), None
patent: 0 990 664 (2000-04-01), None
patent: 1 026 180 (2000-08-01), None
patent: WO 96/13529 (1996-05-01), None
patent: WO 97/02298 (1997-01-01), None
patent: WO 98/45039 (1998-10-01), None
patent: WO 98/46651 (1998-10-01), None
patent: WO 00/32653 (2000-06-01), None
patent: WO 02/16374 (2002-02-01), None
patent: WO 02/070569 (2002-09-01), None
Robyn K.J. Bott et al., “Monocyclopentadienyl phenoxy-imine and phenoxy-amine complexes of titanium and zirconium and their application as catalysts for 1-alkene polymerization”; Journal of Organometallic Chemistry, vol. 665, No. 1-2; Jan. 3, 2003; pp. 135-149.
Sei-ichi Ishii et al; “Zirconium complexes having phenoxy/cycloalkylimine chelate ligands for the polymerization of ethylene for vinyl-terminated low molecular weight polyethylenes”; The Chemical Society of Japan, vol. 7; 2002; pp. 740-741.
Jerald Feldman et al; “Electrophilic Metal Precursors and a β-Diimine Ligand for Nickel)II)- and Palladium (II)-Catalyzed Ethylene Polymerization”; Organometallics, vol. 16, No. 8; 1997; pp. 1514-1516.
Alfredo Martin et al; “Neutral and Cationic Group 4 Metal Compounds Containing Octamethyldibenzotetraazaannulene (Me8taa2-) Ligands. Synthesis and Reactivity of (Me8taa)MX2and (Me8taa)MX+Complexes (M=Zr, Hf; X=Cl, Hydrocarbyl, NR2OR)”; Organometallics, vol. 17, No. 3, 1998; pp. 382-397.
Arts Henricus
Beijer Felix
IJpeij Edwin
van der Burgt Francis
van Doremaele Gerardus
DSM IP Assets B.V.
Lu Caixia
Nixon & Vanderhye P.C.
LandOfFree
Process for the preparation of a polyolefin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of a polyolefin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of a polyolefin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4100446