HYPERBRANCHED MACROMOLECULE OF POLYESTER TYPE

摘要

A hyperbranched macromolecule of polyester type comprising a central monomericor polymeric nucleus and at least one generationof a branching chain extender having at least three reactive sites of which atleast one is a hydroxyl or hydroxyalkyl substituted hydroxylgroup and at least one is a carboxyl or terminal epoxide group. The nucleus isan epoxide compound having at least one reactive epoxidegroup. Optionally, the macromolecule comprises at least one generationconsisting of at least one spacing chain extender having tworeactive sites of which one is a hydroxyl or hydroxyalkyl substituted hydroxylgroup and one is a carboxyl or terminal epoxide group. Themacromolecule may be terminated by means of at least one chain stopper.