| 发明名称 |
CONTACT LENSES OF METHYL METHACRYLATE COPOLYMERS |
| 摘要 |
<p>Contact lenses and contact shells of light-refracting material consisting essentially of a copolymer of I) from 40 to 90% by weight of methyl methacrylate and II) from 10 to 60% by weight of methyl acrylate and/or ?ters corresponding to formula (1): (1) in which R represents H or CH3, R' represents H, CH3 or C2H5 and n = 1 or 2, the sum of I and II amounting to 100% by weight.</p> |
| 申请公布号 |
CA1158398(A) |
申请公布日期 |
1983.12.06 |
| 申请号 |
CA19800362227 |
申请日期 |
1980.10.10 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
WINGLER, FRANK;LEUSNER, BERND;SCHWABE, PETER;GEYER, OTTO-CHRISTIAN |
| 分类号 |
G02C1/04;C08F220/00;C08F220/10;C08F220/14;C08F220/28;G02B1/04;G02C7/04;(IPC1-7):G02C7/04 |
主分类号 |
G02C1/04 |
| 代理机构 |
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代理人 |
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| 地址 |
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