Antimicrobial polymer, contact lens and contact lens-care articles
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United States of America Patent
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May 28, 1996
Grant Date -
N/A
app pub date -
Mar 13, 1995
filing date -
Jul 14, 1993
priority date (Note) -
Expired
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Abstract
An antimicrobial polymer obtained by homo- or copolymerizing a phosphonium salt type vinyl monomer, such as 2-(methacrylic acid) ethyltri-n-octylphosphonium chloride, and a contact lens and an article for its care mainly comprising an antimicrobial resin obtained by copolymerizing a polymerizable monomer and a phosphonium salt type vinyl monomer are disclosed. The antimicrobial polymer has a broad antimicrobial spectrum and produces a sufficient antimicrobial effect after a short contact time. The contact lens and article for its care are hardly effected by contamination with microorganisms while retaining excellent optical performance and processability.
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