Patent ID: 7166306

Claim:
A method for the preparation of plural block copolymeric nanoparticles, said method comprising the steps of: (a) forming a solution by dissolving a crosslinkable block copolymer in a carrier medium, wherein said crosslinkable block copolymer is present in said solution at a concentration of at least 2 weight percent and no more than 32 weight percent, based on the weight of said solution; (b) combining at least one crosslinking agent with said solution; reacting said crosslinking agent with said crosslinkable block copolymer; and optionally, isolating said block copolymeric nanoparticles; wherein: (i) said crosslinkable block copolymer comprises at least one crosslinkable block and at least one non-crosslinkable block; (ii) said crosslinkable block comprises at least one crosslinkable group, or at least one group modifiable to produce a crosslinkable group; and (iii) said crosslinkable block copolymer is miscible with said carrier medium at said concentration.