Process for producing a tinted contact lens

Details Process for producing a tinted contact lens Process for producing a tinted contact lens

1994-07-15

1996-05-14

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

8507, B29D 1100

Patent

active

055164676

ABSTRACT:
A process for producing a tinted contact lens, which includes dissolving a soluble vat dye in a monomer capable of dissolving the soluble vat dye therein, mixing the monomer having the soluble vat dye dissolved therein and other monomers, polymerizing the monomer mixture and processing the resulting polymer into a shape of a contact lens.

REFERENCES:
patent: 4640805 (1987-02-01), Neefe
patent: 4719657 (1988-01-01), Bawa
patent: 4898695 (1990-02-01), Doshi
Patent Abstracts Of Japan, vol. 14, No. 86 (C-0690), Feb. 19, 1990, JP-A-01 299 560, Dec. 4,1989.
Patent Abstracts Of Japan, vol. 12, No. 148 (C-493), May 7, 1988, JP-A-62 265 357, Nov. 18, 1987.

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