| 发明名称 |
Increasing the yield of cast plastic lenses |
| 摘要 |
A terpolymer plastic lens having equal or greater light transmission, greater hardness and scratch resistance equal to the monomers used in prior art plastic lenses is obtained by the co-polymerization of diethylene glycol bis (allyl carbonate), methyl methacrylate and methacrylic acid or acrylic acid.
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| 申请公布号 |
US3944637(A) |
申请公布日期 |
1976.03.16 |
| 申请号 |
US19740441645 |
申请日期 |
1974.02.11 |
| 申请人 |
BUCKBEE-MEARS COMPANY |
发明人 |
BOND, HERBERT M.;TORGERSEN, DANIEL L. |
| 分类号 |
C08F4/00;B29D11/00;C08F4/28;C08F18/00;C08F18/08;C08F220/00;C08F220/04;C08F290/00;C08F299/00;G02B1/04;G02C1/00;G02C7/00;(IPC1-7):B29D11/00 |
主分类号 |
C08F4/00 |
| 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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