초록 ▼

Plastics, particularly a method of hydrophilic coating of plastics, for example, a contact lens, with a lubricating and visually acute mucopolysaccharide film which is immobilized upon the surface of the plastic for the lifetime of the plastic. A preferred method includes first coating the plastic w

Plastics, particularly a method of hydrophilic coating of plastics, for example, a contact lens, with a lubricating and visually acute mucopolysaccharide film which is immobilized upon the surface of the plastic for the lifetime of the plastic. A preferred method includes first coating the plastic with an aqueous solution of a mucopolysaccharide, drying by applying a water-miscible solvent, then crosslinking and permanently immobilizing the first coating upon the plastic by applying a solution of catalyzed organic soluble aliphatic polyisocyanate.

대표청구항 ▼

A method of interlaminar grafting of continuous coatings upon an object, the coatings being different and not mutually soluble, the method comprising the steps of: (a) coating the object with a solution of a polymer having a plurality of functional groups capable of chemically reacting with a mucopo

A method of interlaminar grafting of continuous coatings upon an object, the coatings being different and not mutually soluble, the method comprising the steps of: (a) coating the object with a solution of a polymer having a plurality of functional groups capable of chemically reacting with a mucopolysaccharide, and manifesting a high degree of adhesion to the object, (b) removing solvent from said solution, so as to form a first continuous film, (c) applying as a second coat an aqueous solution of a mucopolysaccharide, (d) removing water from said second coat so as to form a second continuous film, and (e) chemically joining said first and second films so as to effect an interlaminar graft, wherein both films retain their individual integrity.