Liquid agent for contact lens containing carboxylated amine as a preservative or sterilizing component
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United States of America Patent
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Nov 2, 1999
Grant Date -
N/A
app pub date -
Aug 26, 1997
filing date -
Aug 30, 1996
priority date (Note) -
Expired
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Abstract
A liquid agent for a contact lens containing, as a preservative or sterilizing component, a carboxylated amine represented by the following formula, ##STR1## wherein R.sub.1 represents an alkyl group having 6-18 carbon atoms, R.sub.2 represents an alkylene group having 1-18 carbon atoms, A represents Na, K or H, and X represents H or --R.sub.3 COOZ group, wherein R.sub.3 represents an alkylene group having 1-18 carbon atoms and Z represents Na, K or H.
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