Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...
Reexamination Certificate
2006-07-25
2006-07-25
Griffin, Walter D. (Department: 1764)
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
By addition of entire unsaturated molecules, e.g.,...
C585S523000, C585S525000, C585S526000, C585S527000, C502S117000, C502S123000, C502S124000
Reexamination Certificate
active
07081557
ABSTRACT:
Disclosed is a method for the oligomerization of olefins, wherein an olefin is brought into contact with a catalyst system that is obtained from a chromium source, a cycloalkylalkyl-substituted triazacyclohexane, especially a 1,3,5-tris-(cycloalkylalkyl)-1,3,5-triazacyclohexane and an activator such as an alkyl aluminum compound or an alkylalumoxane.
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W. A. Hermann et al., “Synthetic Methods of Organometallic and Inorganic Chemistry,” vol. 1, Literature, Laboratory Techniques and Common Starting Materials;Thieme Medical Publishers,Inc., New York (1996 Georg Theime Verlag, Rüdigerstrasse 14, D-70469 Stuttgart); Printed in Germany by Gutmann & Co GmbH, D-74388 Talheim.
Randolf D. Köhn et al., “Selective Trimerization of α-Olefins with Triazacyclohexane Complexes of Chromium as Catalysts;”Angewandte Chemie, International Edition, Verlag Chemie, Weinheim, Germany; vol. 39(23), p. 4337-4339 (2000).
Egen Martina
Köhn Randolf
Maas Heiko
Mihan Shahram
Molnar Ferenc
Basell Polyolefine GmbH
Bullock In Suk
Griffin Walter D.
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