FAST FILM FORMING WATER BASED BARRIER COATING
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United States of America Patent
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Issued Date -
May 31, 2012
app pub date -
Jun 2, 2010
filing date -
Jun 4, 2009
priority date (Note) -
Abandoned
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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 vapour barrier and can 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; ii) polyvinyl alcohol, and optionally also iii) 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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