Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-12-16
1999-09-21
Nagumo, Mark
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526161, 526129, 526130, 526160, 526171, 526172, 526131, 526120, 526134, 526352, C08F 470
Patent
active
059555556
ABSTRACT:
Ethylene may be polymerized by contacting it with certain iron or cobalt complexes of selected 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines). The polymers produced are useful as molding resins. Novel 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines), and novel complexes of 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines) with iron and cobalt are also disclosed.
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Paul E. Figgins, et al., Complexes of Iron (II), Cobalt(II) and Nickel(II) with Biacetyl-bis-methylimine, 2-Pyridinal-methylimine and 2,6-Pyridindial-bis-methylimine, J. Am. Chem. Soc., 82, 820-824, Feb. 20, 1960.
Thomas W. Bell, et al., Molecular Architecture. 1. Sodium, Potassium, and Strontium Complexes of a Hexaazamacrocycle, an 18-Crown-6/Torand Analogue, J. Am. Chem. Soc., 113, 3115-3122, 1991.
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Reinhard Nesper, et al., Palladium (II) complexes of chiral tridentate nitrogen pybox ligands, Journal of Organometallic Chemistry, vol. 1, No. 507, 85-101, 1996.
Citron Joel D.
E.I. Du Pont de Nemours and Company
Evans Craig H
Nagumo Mark
Wu David W.
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