Package capable of preventing foam formation, method of manufacturing such a package, and antifoaming agent
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United States of America Patent
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Oct 24, 1989
Grant Date -
N/A
app pub date -
Mar 22, 1988
filing date -
Apr 6, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A package capable of preventing the formation of foam when being filled with liquid aqueous products, in which at least a part of the inside of the package is coated on the inside with an antifoaming agent which comprises an antifoaming, water-insoluble compound encapsulated in crystalline urea. In the manufacture of the package, the crystalline urea and the antifoaming compound are dissolved in a mixture of water and an organic solvent forming a solution, and applying the solution to at least a part of the inner side of the material forming the package, whereupon the solvent is driven off.
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