Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-04-18
2006-04-18
Lu, Caixia (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S171000, C556S020000, C556S032000, C556S136000, C556S137000, C556S146000, C556S138000, C502S162000, C502S167000, C502S168000
Reexamination Certificate
active
07030200
ABSTRACT:
Late transition metal complexes of certain ligands which contain phosphinidine and/or imine groups are useful as components of polymerization catalysts for olefins. Useful metals in the complexes include Ni, Pd, Fe and Co. Oligomers and/or polymers of olefins such as ethylene can be made.
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F. Ozawa et. al., Synthesis and Reactions of Palladium and Platinum Complexes Bearing Diphosphinidenecyclobutene Ligands: A Thermally Stable Catalyst for Ethylene Polymerization, Angew. Chem. ITL. Ed. Engl., 2000, p. 4512-4513, vol. 39.
Brookhart Maurice
Daugulis Olafs
E.I. du Pont de Nemours and Company
Lu Caixia
University of North Carolina
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