Fast film formation water based barrier coating
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United States of America Patent
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May 14, 2013
Grant Date -
Nov 10, 2011
app pub date -
Dec 4, 2008
filing date -
Dec 6, 2007
priority date (Note) -
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Abstract
The invention relates to a composition which, when mixed with a polymer composition, allows for the formation of a continuous and cohesive film. The film is characterized in that it provides water, grease and oil resistance, provides a water vapor barrier and can be used as wax replacement treatment and a top coat for flexible packaging, but also on other substrates. This film is formed at a very fast set speed without the need of thermal energy. The composition contains i) a salt of one or more of myristic, palmitic and stearic acid; and preferably also ii) a C9-C18 fatty acid complex of a metal ion, said metal ion having an oxidation state of at least 3. The invention also provides processes and coated substrates.
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