| 发明名称 |
Ethylenically unsaturated phenolphthaleinic monomers |
| 摘要 |
Phenolphthaleinic bis(acrylate), phenolphthaleinic bis(methacrylate), and phenolphthaleinic (acrylate) (methacrylate) may be polymerized to form polymerizates especially useful for lenses and lens blanks.
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| 申请公布号 |
US5231195(A) |
申请公布日期 |
1993.07.27 |
| 申请号 |
US19920977960 |
申请日期 |
1992.11.18 |
| 申请人 |
PPG INDUSTRIES, INC. |
发明人 |
PRABHU, VAIKUNTH S.;COLEMAN, CHARLES R. |
| 分类号 |
C08F20/30 |
主分类号 |
C08F20/30 |
| 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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