发明名称 |
Tinted, high Dk ophthalmic molding and a method for making same |
摘要 |
The invention relates to ophthalmic molding formulations and to tinted, high Dk ophthalmic moldings. This invention also relates to a method for making a tinted ophthalmic molding. The method comprises: (a) providing a polymer precursor having cross-linkable or polymerizable groups; (b) providing a pigment dispersion comprising an inorganic or organic pigment and a dispersing agent; (c) mixing the pigment dispersion with the polymer precursor to form a tinted prepolymer mixture; (d) dispensing the tinted prepolymer mixture into a mold; and (e) forming a tinted ophthalmic molding from the tinted prepolymer mixture, the molding comprising a polymer matrix having the pigment entrapped therein. With this method, tinted ophthalmic moldings, particularly edge-to-edge soft, tinted contact lenses having improved properties, are prepared with an improved efficiency.
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申请公布号 |
US2004246436(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
US20040881572 |
申请日期 |
2004.06.30 |
申请人 |
TUREK RICHARD CHARLES;SCHREMMER JACALYN MARY |
发明人 |
TUREK RICHARD CHARLES;SCHREMMER JACALYN MARY |
分类号 |
G02C7/04;C08F290/06;C08K5/34;C08L83/04;G02B1/04;(IPC1-7):G02B1/12 |
主分类号 |
G02C7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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