Crosslinked hydrogel and method for making same
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United States of America Patent
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Dec 3, 1991
Issued Date -
N/A
app pub date -
Jun 6, 1990
filing date -
Jun 19, 1989
priority date (Note) -
Expired
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Abstract
A chemically crosslinked hydrogel includes an active ingredient for transdermal transport selected from the group of lidocainehydrochloride, hydrocortisone, menthol, and methyl salicylate and utilizes as a crosslinking agent an aluminum acetate, which is a polyvalent salt, which renders the resulting hydrogel electrically conductive with a resistance of less than 10,000 ohms per linear centimeter.
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