发明名称 |
METODO PARA TENIR ARTICULOS PLASTICOS HIDROFILICOS |
摘要 |
Tinted hydrophilic plastic articles, such as soft contact lenses, are prepared by carrying out the tinting operation while the hydrophilic material is still in its non-hydrated state. Tinting at this point avoids the need for use of swelling agents and also permits integration of the tinting procedure into an overall automated manufacturing operation. |
申请公布号 |
MX163845(B) |
申请公布日期 |
1992.06.25 |
申请号 |
MX19890018159 |
申请日期 |
1989.10.31 |
申请人 |
PILKINGTON VISIONCARE HOLDINGS, INC. |
发明人 |
PRAFUL DOSHI |
分类号 |
G02C7/04;B29D11/00;G02B1/04;G02C7/02;G02C13/00;(IPC1-7):G02B1/10 |
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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