Ocular lens material having hydrophilic surface and process for preparing the same
申请人:Menicon Co., Ltd.
公开号:EP1136521A2
公开(公告)日:2001-09-26
A process for preparing an ocular lens material having hydrophilic surface, characterized by comprising the steps of (1) irradiating the surface of an ocular lens material with high-frequency plasma or excimer ultarviolet-ray; (2) contacting the surface of the ocular lens material, which is treated in accordance with the step (1), with a hydrophilic monomer-mixture solution containing at least one zwitterionic group-containing compoud; and (3) irradiating the surface of the ocular lens material, which is in the state of contacting with the hydrophilic monomer-mixture solution in the step (2), with ultravioletray having a wavelength of 250 to 500 nm and then, graft polymerizing the zwitterionic group-containing compound to the surface of the ocular lens material and then, forming a surface layer; and an ocular lens material having hydrophilic surface prepared by the process.
一种制备具有亲水性表面的眼球镜片材料的工艺,其特征在于包括以下步骤:(1) 用高频等离子体或准分子紫外线照射眼球镜片材料的表面;(2) 将按照步骤(1)处理过的眼球镜片材料的表面与亲水性单体-混合物溶液接触,该溶液至少含有一种含有齐聚物基团的化合物;以及(3) 用紫外线照射眼球镜片材料的表面,该表面在步骤(2)中处于与亲水性单体-混合物溶液接触的状态;(3) 用波长为 250 至 500 纳米的紫外线照射处于步骤(2)中与亲水单体-混合物溶液接触状态的眼 镜片材料表面,然后将含齐聚物基团的化合物接枝聚合到眼镜片材料表面,然后形成表层; 以及通过该工艺制备的具有亲水性表面的眼镜片材料。