Multifunctional Cooling Additives For Middle Distillates, Having An Improved Flow Capability
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United States of America Patent
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Jan 3, 2013
app pub date -
Dec 7, 2010
filing date -
Dec 24, 2009
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Abstract
The present invention relates to cooling additives for middle distillates, containing A) at least one comb polymer carrying hydroxyl groups, which can be produced by polycondensation of a polyol that contains two primary OH groups and at least one secondary OH group with a dicarboxylic acid or the anhydride or ester thereof, which carries a C16-C40 alkyl radical or a C16-C40 alkenyl radical, characterized in that the OH number of the comb polymer is at least 40 mg KOH/g, B) at least one copolymer of ethylene and of at least one ethylenically unsaturated ester, and C) at least one organic solvent.
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