Colored contact lens and method for producing the same

Details Colored contact lens and method for producing the same Colored contact lens and method for producing the same

1996-02-07

1998-01-13

Merriam, Andrew E. C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

351162, 526284, 526310, 526240, 526241, 524547, G02C 704

Patent

active

057080496

ABSTRACT:
A contact lens colored with a poly(meth)acrylate-combined metallophthalocyanine compound represented by the following formula (I): ##STR1## wherein M represents a metal atom to which phthalocyanine can coordinate, R represents a halogen atom, m is an integer of 0 to 4, R.sup.1 represents a hydrogen atom or a methyl group, and A represents a hydrogen atom, a C.sub.1-12 alkyl group, a hydroxyC.sub.1-12 alkyl group or a glycerol group. The colored contact lens has sufficiently high fastness, so that the lens undergoes neither color change nor color fading even when it is sterilized by boiling.

REFERENCES:
patent: 4252421 (1981-02-01), Foley, Jr.
patent: 5030669 (1991-07-01), Hendrickson et al.
patent: 5187012 (1993-02-01), Takahashi et al.
Patent Abstracts of Japan for Patent Publication #62265357 of Nov. 1987.
Patent Abstracts of Japan for Patent Publication #05194616 of Aug. 1993.
Horiguchi "Color Material (Shiki-zai)" vol. 38, No. 3 (1964) pp. 100-108; JP 667.622.32-127.

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