Abstract: The present invention relates to a thermosetting powder coating composition comprising a thermosetting polymer, a crosslinking agent, and a bisphenoxy-propanol as a melt viscosity modifier. Preferably, the composition additionally comprises a flow control agent different from the bisphenoxy-propanol.

Abstract: The present invention is the reaction product of an aryl sulfonamide, at least one epoxy compounds comprising at least one diepoxy compound and optionally at least one monoepoxy compound. The diepoxy compound comprises two epoxy groups and the monoepoxy compound comprises one epoxy group. Preferably, the monoepoxy compound and the diepoxy compound have no hydroxyl groups or other functional groups. Specific embodiments include a reaction product derived from at least one monoepoxy compound and at least one diepoxy compound. The reaction product of the present invention has a relatively low molecular weight of from 450 to 2000, preferably 450 to 1000, and more preferably 450 to 800.