Patent ID: 6635720
Filing Date: 2003-10-21
Classification: C08G,Y10S

Abstract:
A composition of matter comprising:a reaction product of a core dendritic polymer molecular having a plurality of terminal functional groups of a first type which are not reactive with each other, and a plurality of shell dendritic polymer molecules having a plurality of terminal functional groups of a second type which are not reactive with each other, but which are reactive with the terminal functional groups of the first type, each of the shell dendritic polymer molecules chemically bonded to the core dendritic polymer molecule by a reaction of at least one of the terminal functional groups of the second type with at least one of the terminal functional groups of the first type, the reaction product having at least 40% of the theoretical maximum number (Mm) of dendritic polymer molecules of the second type that can be bonded to the core dendritic polymer molecule, wherein Mm=2&it;â€ƒ&it;Ï€3&it;(r1r2+1)2,where r1 is the radius of the core dendritic polymer molecule and r2 is the radius of the shell dendritic polymer molecule.