Method for reducing the water desorption of an active composition carried by a supporting medium
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United States of America Patent
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Oct 28, 1986
Grant Date -
N/A
app pub date -
Nov 3, 1983
filing date -
Mar 4, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The method comprises the treatment of the composition and/or the substrate with at least one compatible polar substance selected among compounds which are susceptible, on one hand, to impart finally to the substrate or to said composition an ionic charge opposite to that of the other one or to excite the ionic charge inherent to the treated composition and/or substrate if that charge is already opposite to that of the other one and, on the other hand, to obtain at the same time a hydrophilic/lipophylic balance (HLB) such that the surface tension of the couple supporting medium-composition is lower than the surface tension of the couple supporting medium-water.
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