发明名称 Preparation of hydrogel for soft contact lens with water displaceable boric acid ester
摘要 Soft contact lenses are made by polymerizing a substantially anhydrous polymerization mixture containing a polymerizable acrylic or methacrylic monomer, and a water displaceable ester of boric acid and a compound containing 3 or more hydroxyl groups so as to form a hydrophilic polymer containing at least 30% of said boric acid ester. In a preferred embodiment, the polymerizable is effected in a mould cavity where the contact between a sharp circular edge in one mould part and a spherical surface in the other mould part defines the edge of the lens and the distance between the two mould surfaces outside the sharp edge increases in all radial directions away from the center.
申请公布号 US4495313(A) 申请公布日期 1985.01.22
申请号 US19820360107 申请日期 1982.03.19
申请人 MIA LENS PRODUCTION A/S 发明人 LARSEN, HANS-OLE
分类号 B29D11/00;C08F2/16;C08F230/06;G02B1/04;(IPC1-7):C08K5/05;C08L33/08 主分类号 B29D11/00
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