Soft, with a low hydrophility contactoptical articles

Details Soft, with a low hydrophility contactoptical articles Soft, with a low hydrophility contactoptical articles

G - Physics

02

B

402/410, 88/97

G02B 1/04 (2006.01) C08F 220/06 (2006.01) C08F 226/00 (2006.01) C08F 271/00 (2006.01)

Patent

CA 1260196

SOFT, WITH A LOW HYDROPHILITY CONTACTOPTICAL ARTICLES A B S T R A C T The present invention relates to contactoptical shaped articles in particular contact lenses and scleral lenses, of water-absorbing cross-linked copolymers of olefinically unsaturated monomers having a softening point in the hydrated state below 35°C, characterized in that the copolymer has. (a) a water-absorbing capacity at 25°C of 4 to 50 %, by weight, based on the hydrated state; and (b) a glass transition temperature in the dry state of 25 to 55°C.

497138

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