Invention Grant
- Patent Title: Silicone compound, a process for the preparation thereof and a process for the preparation of an ophthalmic device therefrom
- Patent Title (中): 硅酮化合物，其制备方法和由其制备眼科装置的方法
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Application No.: US12472066Application Date: 2009-05-26
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Publication No.: US08168735B2Publication Date: 2012-05-01
- Inventor: Shoji Ichinohe
- Applicant: Shoji Ichinohe
- Applicant Address: JP Tokyo
- Assignee: Shin-Etsu Chemical Co., Ltd.
- Current Assignee: Shin-Etsu Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2008-137511 20080527
- Main IPC: G02B1/04
- IPC: G02B1/04 ; C08F30/08
Abstract:
The present invention provides a hydrophilic silicone which has a predetermined number of silicon atoms and a high purity and is suitable for producing an ophthalmic device and a process for preparing the same.The silicone compound is represented by formula (1) with a purity of 95% by weight or higher, wherein m is one value out of the integers of from 3 to 10, n is one value out of the integers of from 1 to 10, R1 is one out of alkyl groups having 1 to 4 carbon atoms, and R2 is one out of a hydrogen atom and a methyl group.
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