发明名称 |
METHOD AND MOLD FOR CAST MOLDING CONTACT LENSES |
摘要 |
<p>The invention provide a method for cast-molding hydrogel contact lenses, especially silicone hydrogel contact lenses by using plastic molds of a poly(cycloalkylene-dialkylene terephthalate) copolymer. These plastic molds do not need to be degassed and stored in an oxygen-free atmosphere (e.g., N2 or Ar) before being used for cast-molding silicone hydrogel contact lenses in the absence of oxygen and resultant silicone hydrogel lenses can still have relatively high ion permeability and relatively low variation in targeted optical power, compared with silicone hydrogel lenses made from a conventional mold material, such as polypropylene. The invention also provides plastic molds for cast-molding silicone hydrogel contact lenses.</p> |
申请公布号 |
EP2262631(B1) |
申请公布日期 |
2011.07.20 |
申请号 |
EP20090721142 |
申请日期 |
2009.03.10 |
申请人 |
NOVARTIS AG |
发明人 |
LIU, ALICE, WEIMIN;LIPSCOMB, LANCE, KYLE;SCHAUB, MICHAEL;SMITH, DAWN, A. |
分类号 |
B29C33/40;B29D11/00;C08G63/199 |
主分类号 |
B29C33/40 |
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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