- 专利标题: METHOD FOR MAKING EMBEDDED HYDROGEL CONTACT LENSES
-
申请号: US18322651申请日: 2023-05-24
-
公开(公告)号: US20230382065A1公开(公告)日: 2023-11-30
- 发明人: Jing Cheng , Michelle Plavnik , Ya-Wen Chang , Feng Jing , Steve Yun Zhang
- 申请人: Alcon Inc.
- 申请人地址: CH Fribourg
- 专利权人: Alcon Inc.
- 当前专利权人: Alcon Inc.
- 当前专利权人地址: CH Fribourg
- 主分类号: B29D11/00
- IPC分类号: B29D11/00
摘要:
A method for producing embedded hydrogel contact lenses comprises at least the following steps: obtaining an insert made of a crosslinked polymeric material comprising repeating units of a free-radical photoinitiator; placing the insert in a female lens mold half; dosing an amount of a lens-forming composition to immerse the insert in the female lens mold half; closing tightly a male lens mold half onto the top of the female lens mold half halves to form a molding assembly; actinically curing both the lens-forming composition in the molding assembly to form an embedded hydrogel lens precursor which comprises a bulk hydrogel material formed the lens-forming composition and the insert that is embedded therein and covalently linked to the bulk hydrogel material.
信息查询