Title:
COLORED HYDROUS CONTACT LENS AND METHOD FOR PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2003/016986
Kind Code:
A1
Abstract:
A colored hydrous contact lens, characterized in that it comprises a dye and a dye fixing agent having a weight average molecular weight of 10,000 or more. The colored hydrous contact lens exhibits improved color fastness, even when it has a high water content.
Inventors:
NOMURA TAKASHI (JP)
Application Number:
PCT/JP2001/007063
Publication Date:
February 27, 2003
Filing Date:
August 16, 2001
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
NOMURA TAKASHI (JP)
NOMURA TAKASHI (JP)
International Classes:
B05D7/02; D06P1/52; D06P5/06; D06P5/08; G02C7/04; (IPC1-7): G02C7/04; B05D7/02
Foreign References:
| JPH07294858A | 1995-11-10 | |||
| JP2000122003A | 2000-04-28 |
Attorney, Agent or Firm:
Sato, Kenji c/o Shiga, Branch (TORAY INTELLECTUAL PROPERTY EXPERTS CO. LTD.,
1-1, Sonoyama 1-chom, Otsu-shi Shiga, JP)
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