Patent ID: 6552167
Filing Date: 2003-04-22
Classification: C07K,C08G

Abstract:
A branched water-soluble polyamide composition comprising two or more water-soluble organic polyamide-based chains having a precise number of repeating units, said polyamide-based chains covalently attached through a multivalent linker to a moiety selected from the group consisting of a target molecule, a terminal group, a protecting group, and a reactive group, said water-soluble organic polyamide-based chains having a repeat unit of the formula:â€”{NHâ€”Yâ€”NHâ€”COâ€”Xâ€”CO}nâ€”wherein X and Y are divalent organic radicals lacking reactive functional groups or are absent, and can be the same or different, and can vary independently with each of said repeating units; n is an integer from 2 to 100; and wherein said water-soluble organic polyamide-based chains contain a sufficient number of water-soluble repeat units to render said composition water-soluble.