THERMOSETTING COMPOSITION CONTAINING HYDROXYL-FUNCTIONAL POLYMER PREPARED USING ATOM TRANSFER RADICAL POLYMERIZATION

摘要

PROBLEM TO BE SOLVED: To develop thermosetting compositions that comprise hydroxyl functional copolymers prepared using atom transfer radical polymerization (thus having well-defined molecular weights and polymer chain structure, and narrow molecular weight distributions).;SOLUTION: The thermosetting compositions comprise (a) a crosslinking agent having at least two functional groups that are reactive with hydroxyl groups, and (b) a non-gelled, hydroxyl functional polymer prepared by atom transfer radical polymerization, in the presence of an initiator having at least one radically transferable group. In addition, methods of coating a substrate using these compositions, substrates coated by such methods, and color-plus-clear composite coating compositions are provided.;COPYRIGHT: (C)2009,JPO&INPIT