CONTACT LENSES COMPRISING HYDROGEL COATINGS AND METHOD OF FORMING CONTACT LENSES WITH HYDROGEL COATINGS

A method of coating a contact lens comprises immersing the contact lens in a first treatment solution, and immersing the contact lens in a second treatment solution to create the coating on the contact lens. The first treatment solution comprises: (1) PAA or PMAA; and (2) alcohol, water, or a mixtur...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN, Charlie Xiaomao, YANG, Tahua
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CONTACT LENSES CORRECTING FLUIDS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR DYES FILLING PASTES HUMAN NECESSITIES HYGIENE INKS MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHYSICS POLISHES PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method of coating a contact lens comprises immersing the contact lens in a first treatment solution, and immersing the contact lens in a second treatment solution to create the coating on the contact lens. The first treatment solution comprises: (1) PAA or PMAA; and (2) alcohol, water, or a mixture of the alcohol and the water. The second treatment solution comprises an aqueous solution of: (1) only metal cations; or (2) metal cations and acid comprising copolymers. L'invention concerne un procédé de revêtement d'une lentille de contact comprenant l'immersion de la lentille de contact dans une première solution de traitement, et l'immersion de la lentille de contact dans une seconde solution de traitement pour créer le revêtement sur la lentille de contact. La première solution de traitement comprend : (1) PAA ou PMAA ; et (2) un alcool, de l'eau ou un mélange de l'alcool et de l'eau. La seconde solution de traitement comprend une solution aqueuse de : (1) seuls des cations métalliques ; ou (2) des cations métalliques et de l'acide comprenant des copolymères.