Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-10-29
2000-05-16
Henderson, Christopher
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526126, 526134, 526160, 526161, 526170, C08F 200, C08F 464, C08F 1002
Patent
active
060638796
ABSTRACT:
This invention is a solution process for the preparation of high molecular weight ethylene copolymers comprising contacting olefin monomers, with a catalyst system at a polymerization temperature at or above about 80.degree. C. with a catalyst system comprising an unbridged Group 4 metal compound having a monocyclopentadienyl ligand, a phosphinimine ligand and at least one uninegative, activation reactive ligand. The process can be practiced at a reaction temperature of at least 80.degree. C. to obtain high number average molecular weight polymer.
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Poster Presentation by J.C. Stewart and D.W. Stephan, Dept. of Chemistry and Biochemistry, The University of Windsor at the IDW Conference at McGill University in Nov. 1996.
Phosphaniminato-Komplexe des Titans. Synthese und Kristallstrukturen von CpTiCl.sub.2 (NPMe.sub.3), [TiCl.sub.3 (NPMe.sub.3)].sub.2, [Ti.sub.2 Cl.sub.5 (NPMe.sub.2 Ph).sub.3 ]und [Ti.sub.3 Cl.sub.6 (NPMe.sub.3).sub.5 ][BPh.sub.4 ] by T. Rubenstahl et al, Zeitschrift fur anorganische und allegemeine Chemie, 620 (1994) 1741-1749;
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Brown Stephen John
Stephan Douglas W.
Stewart Jeff C.
Swabey John William
Wang Qinyan
Henderson Christopher
Johnson Kenneth H.
NOVA Chemicals (International ) S.A.
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