Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2005-04-19
2005-04-19
Desai, Rita (Department: 1626)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C548S549000
Reexamination Certificate
active
06881342
ABSTRACT:
An optically active poly(N-α-methylbenzylmaleimide) represented by the following formula (1):wherein n is a number within a range of from 2 to 10,000, and symbol * represents optically active carbon, and having a specific rotation ([α]43525) of at least +30°.
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Zhou Hua et al; Asymmetric anionic polymerization of chiral (R)-(+)-N-alpha-methylbenzylmaleimide with chiral ligand/organometal complex; Polym J; Polymer Journal 2000 Society of Polymer Science, JPN Tokyo, Japan, vol. 32, No. 7, 2000, pp. 552-559.
Desai Rita
Shiao Robert
Tosoh Corporation
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