The present invention is directed to an electrodepositable coating composition comprising an electrodepositable binder comprising an ionic salt group-containing film-forming polymer comprising active hydrogen functional groups, and a blocked polyisocyanate curing agent; a solubilized bismuth catalyst; and a guanidine; wherein the electrodepositable coating composition has a weight ratio of bismuth metal from the solubilized bismuth catalyst to guanidine of from 1.00:0.071 to 1.0:2.1 and/or a molar ratio of bismuth metal to guanidine of from 1.0:0.25 to 1.0:3.0. Also disclosed are methods of treating electrodepositable coating compositions, methods for making electrodepositable coating compositions, systems for coating a metal substrate, coatings, coated substrates, and methods of coating a substrate.

To provide a cationic electrodeposition coating composition manifesting excellent anticorrosive property at edges and in flat areas, along with finish quality, even in a state of thin film, as well as a coated article demonstrating these excellent coating film performances, the cationic electrodeposition coating composition includes an amino group-containing epoxy resin (A), a blocked polyisocyanate compound (B), and crosslinked epoxy resin particles (C), wherein the crosslinked epoxy resin particles (C) are contained by 0.1 to 40 parts by mass relative to the total mass in solids content of the amino group-containing epoxy resin (A) and blocked polyisocyanate compound (B); the number-average molecular weight of the crosslinked epoxy resin particles (C) is under 100,000; and/or the volume-average particle size of the crosslinked epoxy resin particles (C) is 30 to 1,000 nm.

Provided is method of making a three-dimensional object comprising polyurea, which may include: (a) dispensing a one part (1K) dual cure resin into a stereolithography apparatus, the resin comprising or consisting essentially of a photoinitiator, a reactive blocked polyisocyanate, optionally a catalyst such as a polyurethane blowing catalyst, and optionally a polyepoxide; (b) additively manufacturing from said resin an intermediate object comprising the light polymerization product of said reactive blocked polyisocyanate; (c) optionally cleaning said intermediate object; and (d) reacting said polymerization product in said intermediate with water in the presence of a catalyst such as a polyurethane blowing catalyst (which may be included in the resin, the water, or both) to generate polyamine in situ that sequentially reacts with the remainder of the polymerization product to form urea linkages and thereby produce a three-dimensional object comprising polyurea. Dual cure resins useful for the method are also provided.

A composition includes at least one of: (a) an amino acid isocyanate adduct of Formula I:

##STR00001##

and salts thereof, and (b) an amino acid epoxide adduct of Formula II:

##STR00002##

and salts thereof. R.sub.1 is a moiety of a monomer or prepolymer including two NCO functional groups, which have reacted to form urea linkages; R.sub.2 is a moiety of a monomer or prepolymer including two glycidyl ether epoxide functional groups, which have reacted to form amino alcohol groups; R.sub.6, R.sub.7, R.sub.20 and R.sub.21 are independently (CH.sub.2).sub.n, n is 1-6; R.sub.8, R.sub.9, R.sub.10 and R.sub.11 are independently hydrogen or CH.sub.2X; R.sub.12, R.sub.13, R.sub.14 and R.sub.15 are independently hydrogen, alkali metal cation, or X; R.sub.16 and R.sub.17 are independently hydrogen or X; R.sub.18 and R.sub.19 are independently hydrogen, SiO.sub.3 or X; and each X is independently hydrogen or a substituent. Controlled release particles, consumer products and methods including the composition are also disclosed.