发明名称 |
IMPROVED CLEANING METHOD FOR MOLDS USED IN THE MANUFACTURING OF SILICONE HYDROGEL CONTACT LENSES |
摘要 |
The invention provides a method for washing, with a water-based system, reusable molds for making silicone hydrogel contact lenses. The water-based washing system comprises a solvo-surfactant which is an alkyl (propylene glycol)n ether wherein alkyl is a linear alkyl group having 2 to 5 carbon atoms and n is the integer 1, 2 or 3. The water-based system of the invention can effectively wash away silicone-containing components and other components of a lens formulation left behind on the molding surfaces of a reusable mold, after removing a silicone hydrogel contact lens cast molded in the reusable mold. |
申请公布号 |
EP3113937(A1) |
申请公布日期 |
2017.01.11 |
申请号 |
EP20150707648 |
申请日期 |
2015.03.04 |
申请人 |
Novartis AG |
发明人 |
BOTHE, Harald;TRETTER, Michael;HAGMANN, Peter |
分类号 |
B29D11/00;B29C33/72;G02B1/04 |
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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