The colloidal resins possessing a hydroxy-containing coordinating ligand are obtained by copolymerizing from about 92% by weight to about 99% by weight of a monomer or a mixture of monomers of the group comprising vinyl halide, vinyl ester, or vinyl ether monomers including, for example, vinyl chloride, vinyl acetate and vinyl ethyl ether; olefins such as ethylene and propylene; acrylic and methac