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
- Patent Title: Method for producing polycarbonate material having excellent solubility and affinity, and contact lens material comprising the same
- Patent Title (中): 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
-
Application No.: US13383993Application Date: 2009-07-15
-
Publication No.: US08501878B2Publication Date: 2013-08-06
- Inventor: Yasuhiko Suzuki , Kazuhiko Nakada , Tsuyoshi Watanabe , Takahiro Adachi , Mamoru Hagiwara , Masahiko Minemura
- Applicant: Yasuhiko Suzuki , Kazuhiko Nakada , Tsuyoshi Watanabe , Takahiro Adachi , Mamoru Hagiwara , Masahiko Minemura
- Applicant Address: JP Nagoya-shi JP Tokyo JP Tokyo
- Assignee: Menicon Co., Ltd.,Mitsubishi Gas Chemical Company, Inc.,Shin-Etsu Chemical Co., Ltd.
- Current Assignee: Menicon Co., Ltd.,Mitsubishi Gas Chemical Company, Inc.,Shin-Etsu Chemical Co., Ltd.
- Current Assignee Address: JP Nagoya-shi JP Tokyo JP Tokyo
- Agency: Kratz, Quintos & Hanson, LLP
- International Application: PCT/JP2009/062797 WO 20090715
- International Announcement: WO2011/007427 WO 20110120
- Main IPC: G02B1/04
- IPC: G02B1/04 ; C08L83/06 ; C08L67/00

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.
Public/Granted literature
Information query