| 发明名称 |
Tungsten hexacarbonyl in plastic lenses |
| 摘要 |
Tungsten hexacarbonyl acts as a photochromic agent and an infrared absorber when incorporated in liquid allyl glycol carbonates, such as allyl diglycol carbonate, and polymerizates thereof. Photochromic, infrared-absorbing optical and ophthalmic lenses containing tungsten derived from tungsten hexacarbonyl are made.
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| 申请公布号 |
US4069168(A) |
申请公布日期 |
1978.01.17 |
| 申请号 |
US19760728561 |
申请日期 |
1976.10.01 |
| 申请人 |
PPG INDUSTRIES, INC. |
发明人 |
LEATHERMAN, I. ROGER;MISURA, MICHAEL S. |
| 分类号 |
C08F290/00;C08F299/00;C08K3/18;C08L33/00;C08L33/04;C09K9/02;G02B5/23;G03C1/00;G03C1/73;G03C1/735;(IPC1-7):G02B5/23 |
主分类号 |
C08F290/00 |
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代理人 |
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