Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2007-04-03
2007-04-03
Lorengo, J. A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C585S522000, C585S523000, C585S527000
Reexamination Certificate
active
10446164
ABSTRACT:
A catalyst for the oligomerization of olefins, especially ethylene contains:at least one nickel complex e.g. Li2Ni X2that results from bringing into contact a nickel salt e.g. a nickel carboxylate with a bidentate chelating ligand containing a nitrogen-containing heterocyclic compound with an alcohol e.g. Ha-C(OH)RR′; andat least one hydrocarbylaluminum compound from tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds or at least one aluminoxane.
REFERENCES:
patent: 3625927 (1971-12-01), Yoshimoto et al.
patent: 3644218 (1972-02-01), Dunn
patent: 4000211 (1976-12-01), Smith et al.
patent: 4069273 (1978-01-01), Komoto
patent: 6309997 (2001-10-01), Fujita et al.
patent: 6399724 (2002-06-01), Matsui et al.
patent: 6864205 (2005-03-01), Murray
patent: 2002/0107345 (2002-08-01), Ittel et al.
patent: WO 99/54364 (1999-10-01), None
C. Bolm et al. “Catalytic enantioselective conjugate addition of dialkylzinc compounds to chalcones” Chemich Berichte., vol. 125, 1992, pp. 1205-1215, XP002227949 Verlag Chemie GmbH. Weinheim., DE ISSN: 0009-2940.
Desjardins S y et al.: “Insertion into the nickel-carbon bond of N—O chelated arylnickel (II) complexes. The development of single component catalysts for the oligomerisation of ethylene” Journal of Organometallic Chemistry, Elsevier-Sequoia S.A. Lausanne, CH vol. 515, No. 1. May 31, 1996, pp. 233-243, XP004036010 ISSN: 0022-328X.
Chemical Abstracts Service, Columbus Ohio, US; Golounin A.V. et al.: “Extractive power of mixtures of carboxylic acids and organic bases” retrieved from STN Database accession No. 1992: 461739 XP002227950.
“Synthesis of 2-(α-Hydroxyalkyl)-1,3-heterocyclic Alcohols and Aryl Carbamates”, Lendon N. Pridgen and George Miller, pp. 1223-1230. J. Heterocyclic Chem. vol. 20, No. 1223 (1983).
“Transmission of Substituent Effects in Heterocyclic Systems, The Solvolysis of Some Substituted Chloroalkylpyridines”, Donald S. Noyce and Joseph A. Virgilio, J. Org. Chem., vol. 38, No. 15, 1973, pp. 2660-2664.
Braunstein Pierre
Saussine Lucien
Speiser Fredy
Institut Francais du Pe'trole
Lorengo J. A.
Millen White Zelano & Branigan P.C.
Pasterczyk J.
LandOfFree
Organometallic complexes that comprise bidentate chelating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Organometallic complexes that comprise bidentate chelating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organometallic complexes that comprise bidentate chelating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3756217