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United States of America Patent
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Issued Date -
Feb 9, 2012
app pub date -
Feb 4, 2010
filing date -
Feb 9, 2009
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Abstract
(for example di-hydrogenated tallow amine) and (ii) a carboxylic acid having from 1 to 4 carboxylic acid groups or an acid anhydride or acid chloride thereof (for example phthalic acid or phthalic anhydride). The additives described combat problems arising from precipitation at temperatures above the cloud point.
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