Abstract: To color code optical fibers, a ultraviolet light curable ink is mixed with a carrier fluid. The mixture is then applied to a horizontally moving optical fiber by an ink applicator using a rigid applicator die. The fiber then passes through a convection oven to evaporate the carrier fluid and a ultraviolet light radiator to cure the ultraviolet light curable ink.

Abstract: A method of preparing a coated substrate is disclosed. The substrate is coated with a plasma generated polymer containing Si, Or C and H in specific atom ratio wherein the polymer also contains certain functional groups, A power density of about 10.sup.6 to about 10.sup.8 J/Kg is employed in the plasma polymerization process.

Abstract: A method for modifying the plastic surface of an article adapted for contacting living tissue by the gamma or electron beam irradiation induced chemical graft coating thereon of:(1) a neutral or ionic water-soluble, hydrophilic vinylic monomer or salt thereof;(2) a mixture of at least two of said monomers, or(3) a mixture of (1) or (2) with up to about 50%, by weight, based on the total monomer weight, of a member selected from the group consisting of N-vinylpyrrolidone, 2-hydroxyethyl-methacrylate, and mixtures thereof; so as to form a hydrophilic graft polymer coating on the surface.