发明授权
- 专利标题: High-hydration contact lens
- 专利标题(中): 高水合隐形眼镜
-
申请号: US845936申请日: 1986-03-31
-
公开(公告)号: US4625009A公开(公告)日: 1986-11-25
- 发明人: Tetsuro Izumitani , Niro Tarumi , Shigeo Komiya , Takeyuki Sawamoto
- 申请人: Tetsuro Izumitani , Niro Tarumi , Shigeo Komiya , Takeyuki Sawamoto
- 申请人地址: JPX Tokyo
- 专利权人: Hoya Corporation
- 当前专利权人: Hoya Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX60-65015 19850330
- 主分类号: C08F20/10
- IPC分类号: C08F20/10 ; C08F20/52 ; C08F220/00 ; C08F220/10 ; C08F220/12 ; C08F220/18 ; C08F220/28 ; C08F220/54 ; C08F220/56 ; C08F290/00 ; C08F299/02 ; G02B1/04 ; G02C7/04 ; C08F20/54
摘要:
A high-hydration contact lens having a high strength is disclosed which is made of a copolymer composed of (i) 40 to 90 wt. % of N,N-dimethyl acrylamide, (ii) 5 to 50 wt. % of a hydrophobic monomer, (iii) 0.1 to 10 wt. % of an unsaturated carboxylic acid having one ethylenically unsaturated bond, and (iv) 0.01 to 5.0 wt. % of a crosslinking agent, wherein the hydrophobic monomer is selected from the group consisting of phenyl acrylates, benzyl acrylates, phenyl methacrylates, benzyl methacrylates, alkyl acrylates, alkyl methacrylates, cyclohexyl acrylates and cyclohexyl methacrylates, and the crosslinking agent is selected from those represented by formula (I), (II), or (III) ##STR1## wherein X represents a hydrogen atom or a methyl group, a is an integer of 2 to 23, and b and c each is an integer of 2 to 14.
公开/授权文献
- US5938476A Cable connector assembly 公开/授权日:1999-08-17