Vylon 280 Non-crystalline copolyester Toyobo Vylon Polyester ADHESIVE Highly polymerized copolyester resin that can be dissolved by general purpose organic solvents. For its dissolution property, this product is used for a variety of solution type adhesives. Offers pigment dispersibility and hydrophilic nature. Highly polymerized copolyester resin with hydrophilic nature. Used in adhesives for flexible printed circuit board. Offers pigment dispersibility.