Disinfecting and preserving systems and methods of use

Details Disinfecting and preserving systems and methods of use Disinfecting and preserving systems and methods of use

1988-08-08

1989-06-06

Schofer, Joseph L.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using disinfecting or sterilizing substance

424 78, 252106, 514635, G01N 3112

Patent

active

048369861

ABSTRACT:
A method of treating a contact lens wherein the lens is contacted with a solution containing a biguanide or water-soluble salt thereof, in combination with a borate buffer system, said biguanide having the formula: ##STR1## wherein n is from 1 to 500, said biguanide being present in an amount from 0.000001 to 0.0003 weight percent.

REFERENCES:
patent: 2336605 (1943-12-01), Ernsberger et al.
patent: 3860729 (1975-01-01), Strandshor et al.
patent: 4022834 (1977-05-01), Gundersen
patent: 4405645 (1983-09-01), Rothlizberger
patent: 4499077 (1985-02-01), Stockel et al.
patent: 4519803 (1985-05-01), Clare

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