C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 3/22 (2006.01) C08L 33/04 (2006.01) G02B 1/04 (2006.01)
Patent
CA 2753226
The present invention relates to a composition comprising a hydrogel polymer having less than 100% haze, and distributed therein an oxygen enhancing effective amount of oxygen permeable particles having an oxygen permeability of at least about 100 barrer, average particle size less than about 5000 nm.
La présente invention concerne une composition comprenant un hydrogel polymérique présentant une atténuation de la visibilité inférieure à 100 %, et dans lequel est répartie une quantité efficace, en termes de renforcement de la perméabilité à l'oxygène, de particules perméables à l'oxygène présentant une perméabilité à l'oxygène au moins égale à environ 100 barrers, la taille moyenne desdites particules étant inférieure à environ 5 000 nm.
Enns John B.
George Eric R.
Hill Gregory A.
Scales Charles W.
Johnson & Johnson Vision Care Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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