Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1996-06-27
1998-11-03
Hampton-Hightower, P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528310, 528319, 528331, 528341, 528347, C08G 6900, C08G 6926
Patent
active
058309845
ABSTRACT:
Optically active ladder polymers that are chiral and have an unbroken network of conjugated double bonds along a helical path are synthesized.
REFERENCES:
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Costes, J.P. et al. (1995) Geometrical and Optical Isomers of the Nickel(II) Complexes of Chiral Tetradentate Unmixed And Mixed Schiff Bases: CD and NMR Spectroscopic Studies. Polyhedron 14:2179-2187; The publication date is not available.
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Gilbert, A. M., et al. "Synthesis and Properties of an Optically Active Helical Bis-cobaltocenium Ion", J. Am. Chem. Soc. (1993) 115: 3199-3211 (Exhibit B); The month in the date of the publication is not available.
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Sudhakar, A., et al., "Synthesis of a Helical Metallocene Oligomer", J. Am. Chem. Soc. (1986) 108: 2790-2791 (Exhibit F). The month in the date of publication is not available.
Dai Yujia
Katz Thomas J.
Hampton-Hightower P.
The Trustees of Columbia University in the City of New York
White John P.
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