Abstract: The aqueous-based cross-linkable binder composition comprising

Abstract: The invention pertains to a coating composition comprising a first compound comprising at least one bicyclo- or spiro-orthoester group and a second compound comprising at least two hydroxyl-reactive groups. The invention also comprises a process for curing the present coating composition. More particularly, the latent hydroxyl groups of the bicyclo- or spiro-orthoester groups have to be deblocked and reacted with the hydroxyl-reactive groups of the second compound if the present coating composition is to be cured. Further, a process for making bicyclo-orthoester compounds from the corresponding oxetane compound is described, as are polymers comprising at least one bicyclo- or spiro-orthoester group.

Abstract: Proposed is a thermosetting powder coating composition comprising a mixture of particles reactive towards one another and a catalyst, with a portion of the reactive particles comprising a polymer reacting with epoxy to form ester forming or ether forming groups, while another portion comprises an at least bifunctional cross-linking agent which contains 2-oxo-1,3-dioxolan-4-yl groups, hereinafter referred to as cyclocarbonate groups, and, optionally, epoxy groups, with both the polymer reacting with epoxy to form ester forming and/or ether forming groups and the cross-linking agent being obtained by means of a non-vinylic addition and/or polymerization process. The catalyst used as ring opener for the cyclocarbonate groups is present in a quantity of 0.01 to 10, preferably 0.1 to 5, parts by weight per 100 parts by weight of the mixture of particles reactive towards one another. The quantity of epoxy oxygen present in the cross-linking agent after CO.sub.2 unblocking preferably is at least 0.4 wt. %.

Abstract: The present invention pertains to coating compositions including a particular class of internally blocked polyamines as replacement for traditional blocked and unblocked polyamine crosslinkers. The use of these internally blocked polyamines results in better appearance characteristics and a lower VOC than are generally available with the traditional blocked varieties.

Abstract: Proposed is a thermosetting powder coating composition comprising a mixture of particles reactive towards one another, optionally in combination with a catalyst, with a portion of the reactive particles comprising a polymer reactive towards oxetane groups while another portion comprises an oxetane groups-containing cross-linking agent having an oxetane functionality of more than 1. The quantity of oxetane oxygen in the cross-linking agent preferably is at least 0.4 wt. %. The reactive polymer preferably is a polymer having groups reactive towards oxetane, such as carboxyl, epoxy, oxetane, anhydride, and hydroxyl, with preference being given to a polyester or a hydroxypolyacrylate.

Abstract: The present invention relates to coating compositions including a particular class of oligomeric sterically hindered polyamines as replacements for traditional blocked and unblocked polyamine crosslinkers. The use of these oligomeric sterically hindered polyamine crosslinkers resultss in a desirable pot life/cure speed relationship not generally available with traditional unblocked polyamine crosslinkers, as well as a lower VOC and often better appearance characteristics than generally available with the traditional blocked varieties.