Title:
CONTACT LENS
Document Type and Number:
WIPO Patent Application WO/2005/116728
Kind Code:
A1
Abstract:
A contact lens which is composed of two types of polymer and has a hard portion arranged in the central part thereof and a soft portion arranged in the edge of the central part, wherein the monomer mixture for forming said hard portion comprises at least one silicone-containing monomer, and the monomer mixture for forming said hard portion and the monomer mixture for forming said soft portion contain at least one common hydrophilic monomer. The above contact lens is excellent in optical properties, offers good feeling during the use thereof, and can be continuously used for a long period of time.
Inventors:
MATSUSHITA RYO (JP)
NIWA KAZUHARU (JP)
SUGIYAMA AKIHISA (JP)
NIWA KAZUHARU (JP)
SUGIYAMA AKIHISA (JP)
Application Number:
PCT/JP2004/007388
Publication Date:
December 08, 2005
Filing Date:
May 28, 2004
Export Citation:
Assignee:
MENICON CO LTD (JP)
MATSUSHITA RYO (JP)
NIWA KAZUHARU (JP)
SUGIYAMA AKIHISA (JP)
MATSUSHITA RYO (JP)
NIWA KAZUHARU (JP)
SUGIYAMA AKIHISA (JP)
International Classes:
C08F220/28; G02B1/04; G02C7/04; (IPC1-7): G02C7/04; C08F220/28
Foreign References:
| JPS6250126A | 1987-03-04 | |||
| JPH06121826A | 1994-05-06 | |||
| JPH0790030A | 1995-04-04 |
Other References:
See also references of EP 1750157A4
Attorney, Agent or Firm:
Asahina, Sohta (2-22 Tanimachi 2-chom, Chuo-ku Osaka-shi Osaka 12, JP)
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