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US 12,403,447 B2Granted
Separating agent for optical isomers
AssigneeDaicel Corporation
InventorsTakunori Ueda, Ryota Hamasaki
Life of this patent
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Abstract
Provided is a separating agent for optical isomers, which is excellent in solvent resistance and has optical separating ability comparable to or higher than that of existing separating agents for optical isomers of chemical bonding type or physical adsorption type. In the separating agent for optical isomers, amylose (3-chloro-5-methylphenylcarbamate) is supported on a carrier through chemical bonding.
Claims2
A method for manufacturing a separating agent for optical isomers, comprising:
- radical copolymerization of an amylose derivative having a first radically polymerizable group, a carrier having a second radically polymerizable group, and a radically polymerizable monomer,
- wherein in the amylose derivative having the first radically polymerizable group, some of hydroxyl groups of amylose are replaced by 3-chloro-5-methylphenylisocyanate, while other hydroxyl groups are replaced by a substituent having the first radically polymerizable group,
- wherein the first radically polymerizable group of the amylose derivative and the second radically polymerizable group of the carrier are the same or different.
Dependencies are inferred from the claim text.