Vantico has appointed Ribelin Sales Inc., Dallas, distributor of epoxy resins, epoxy hardeners, bismalimides, polyimides, diluents, and accelerators in Georgia, Alabama and Florida. In other announcements, Ribelin said it was appointed distributor by Ineos Silicas for silica flatting agents in Utah, Nevada, Colorado, New Mexico, Oklahoma, Texas, Arkansas, and Louisiana, and was appointed distributor by Chroma-Tek AOC, a dispersions supplier, in 16 southern and western states.