发明名称 |
HYDROPHILIC CONTACT LENS TRANSPARENT TO OXYGEN |
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 |
JPS5429660(A) |
申请公布日期 |
1979.03.05 |
申请号 |
JP19780095881 |
申请日期 |
1978.08.08 |
申请人 |
DU PONT |
发明人 |
RUISU PURANBETSUKU JIYUNIA |
分类号 |
G02C7/04;C08F20/00;C08F20/22;C08F220/24;C08F220/28;G02B1/04 |
主分类号 |
G02C7/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|