发明名称 |
USE OF SURFACTANTS IN EXTRACTION PROCEDURES FOR SILICONE HYDROGEL OPHTHALMIC LENSES |
摘要 |
Methods of producing silicone hydrogel ophthalmic lenses include contacting one or more delensed silicone hydrogel ophthalmic lens with a liquid composition that contains alcohol, water, and a surfactant. The methods can be steps of an extraction/hydration procedure used in the production of silicone hydrogel contact lenses. In some examples, contacting silicone hydrogel ophthalmic lens products with a liquid composition that contains alcohol, water, and a surfactant can significantly reduce or prevent surface distortion of the ophthalmic lens resulting from the extraction procedure. Some methods include subsequently contacting the silicone hydrogel ophthalmic lens with a liquid composition consisting essentially of water and a surfactant. |
申请公布号 |
WO2008131268(A4) |
申请公布日期 |
2009.02.19 |
申请号 |
WO2008US60886 |
申请日期 |
2008.04.18 |
申请人 |
COOPERVISION INTERNATIONAL HOLDING COMPANY, LP;WARREN, TIM;DAULTON, JAY, SCOTT;CHEN, CHARLIE |
发明人 |
WARREN, TIM;DAULTON, JAY, SCOTT;CHEN, CHARLIE |
分类号 |
B29D11/00;C08F290/06;G02C7/02 |
主分类号 |
B29D11/00 |
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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