C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/00 (2006.01) A01N 43/16 (2006.01) A61L 12/12 (2006.01) A61L 12/14 (2006.01) C11D 3/22 (2006.01) C11D 7/32 (2006.01)
Patent
CA 2508283
The use of compositions containing chitin derivatives to treat contact lenses is described. The compositions are particularly useful for removing protein deposits from contact lenses, but also serve to lubricate the surfaces of the lenses and enhance the comfort of the lenses when worn on the eyes. The chitin derivatives are preferably nonionic (e.g., ethylene glycol chitin), and facilitate the removal of protein deposits from contact lenses by functioning as a substrate for the lysozyme contained in those deposits.
La présente invention concerne l'utilisation de compositions contenant des dérivés de chitine pour traiter des lentilles de contact. Ces compositions sont particulièrement utilisées pour éliminer des dépôts protéiques sur des lentilles de contact, mais également pour lubrifier les surfaces des lentilles et améliorer le confort de port de celles-ci. Les dérivés de chitine sont de préférence non ioniques (par ex. chitine d'éthylène glycol) et facilitent l'élimination de dépôts protéiques sur des lentilles de contact en ce qu'ils servent de substrat pour la lysozyme contenue dans ces dépôts.
Hong Bor-Shyue
Ketelson Howard Allen
Meadows David L.
Owen Geoffrey Robert
Alcon Inc.
Smart & Biggar
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