Medical pressure-sensitive adhesives with high permeability to water vapor and high adhesive force, and plasters provided therewith
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United States of America Patent
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Mar 6, 2001
Grant Date -
N/A
app pub date -
Mar 1, 1999
filing date -
Jul 18, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Medicinal pressure-sensitive adhesives, adhering to both dry and wet skin, characterized by a mixture of a) 20-50 wt-% of a hydrophilic (meth)acrylate copolymerizate containing tertiary amino groups, b) 20-50 wt-% of a hydrophobic (meth)acrylate copolymerizate containing carboxyl groups, c) 10-40 wt-% of one or more mono- or dicarboxylic acids, d) 0-10 wt-% of a polyol, and e) 0.02-0.5 wt-% of a cross-linking system reacting with at least one copolymerizate, whereby the sum of components a to e equals 100 wt-%, with a water-vapor permeability of .gtoreq.30,000 g.multidot.m.sup.-2.multidot.24 h.sup.-1, measured on a pressure-sensitive adhesive film with a thickness of 40 .mu.m.
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