Nitroglycerine plaster and process for its production
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United States of America Patent
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Mar 12, 1996
Grant Date -
N/A
app pub date -
Mar 14, 1994
filing date -
Jun 10, 1991
priority date (Note) -
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Abstract
The invention relates to a dermal plaster for the transdermal provision of nitroglycerin comprising a carrier film and a removable protective film and an adhesive mass containing nitroglycerine on the basis of a cross-linked acrylate-vinyl acetate copolymer in which the monomer mix used for polymerization consists essentially of 21 to 40% wt. vinyl acetate, 55 to 70% wt. of an acrylic acid C2-8 alkyl ester and 3 to 10% wt. of an acrylic acid C2-4 hydroxyalkyl ester and which is cross-linked by heating and the removal of any solvents present after the addition of a cross-linking agent and the nitroglycerin.
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