A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 12/08 (2006.01) A61L 12/14 (2006.01) C11D 1/66 (2006.01) C11D 3/00 (2006.01) C11D 3/20 (2006.01) C11D 3/22 (2006.01) C11D 3/37 (2006.01)
Patent
CA 2626773
The present invention provides a lens care composition having a persistent cleaning-efficacy characterized by substantially maintaining the light transmittance at around 280 nm of a contact lens after at least 15 cycles of soiling with a soiling solution containing proteins and subsequent cleaning with the lens care composition of the invention. The lens care composition comprises at least one surfactant, a polyvinylpyrrolidone (PVP), a cellulose ether, and xylitol, wherein in combination with polyvinylpyrrolidone (PVP), a cellulose ether, and xylitol, the surfactant provides the persistent cleaning- efficacy.
La présente invention concerne une composition d~entretien de lentilles ayant une efficacité persistante en termes de nettoyage, caractérisée par le maintien substantiel de la transmission de lumière à environ 280 nm d~une lentille de contact après au moins 15 cycles de salissure à l~aide d~une solution de salissure contenant des protéines, et un nettoyage ultérieur à l~aide de la composition d~entretien de lentilles selon l~invention. La composition d~entretien de lentilles comprend au moins un agent tensioactif, une polyvinylpyrrolidone (PVP), un éther de cellulose et un xylitol, l~agent tensioactif, en combinaison avec de la polyvinylpyrrolidone (PVP), un éther de cellulose et un xylitol, apporte l~efficacité persistante en termes de nettoyage.
Fetherstonhaugh & Co.
Novartis Ag
LandOfFree
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