Invention Grant
US08501878B2 Method for producing polycarbonate material having excellent solubility and affinity, and contact lens material comprising the same 失效
具有优异的溶解性和亲和性的聚碳酸酯材料的制造方法和包含该聚碳酸酯材料的隐形眼镜材料

Method for producing polycarbonate material having excellent solubility and affinity, and contact lens material comprising the same
Abstract:
According to the present invention, a contact lens material being excellent in oxygen permeability and transparency, being capable of undergoing injection molding, having no water content and having flexibility, as well as a contact lens gel material having excellent oxygen permeability and transparency can be provided. The present invention relates to a contact lens material comprising a polycarbonate resin derived from at least two compounds among compounds represented by a general formula (A), a general formula (B) and a general formula (C), a highly polar molecular weight control modifier (chain terminator) and a compound forming a carbonic acid ester, wherein the compound of the general formula (A) is essentially comprised, and to a production method thereof.
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