发明名称 |
HYDROPHILIC OXYGEN PERMABLE CONTACT LENS |
摘要 |
<p>A contact lens which when saturated with water has oxygen permeability of greater than 500 centibarrers and a receding contact angle with water of less than 35 DEG . The lens is formed of a polymer containing from 20 to 80 weight percent of repeating units of the structure <IMAGE> where -R is -H or CH3 and R1 contains from 2 to 10 carbon atoms and at least one polar group. In a preferred aspect -R1 is -CH2CH2OH or -CH2CHOHCH3. The polymer also contains from 80 to 20 weight percent of repeating units of the structure <IMAGE> where -R2 is -H or -CH3 and n is 1 to 4.</p> |
申请公布号 |
GB2003493(B) |
申请公布日期 |
1982.05.26 |
申请号 |
GB19780032492 |
申请日期 |
1978.08.07 |
申请人 |
DU PONT |
发明人 |
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分类号 |
G02C7/04;C08F20/00;C08F20/22;C08F220/24;C08F220/28;G02B1/04;(IPC1-7):02C7/04;08F220/22;02B1/10;08F220/28 |
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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