STABILIZED LEVULINIC ESTER KETALS
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United States of America Patent
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Issued Date -
Apr 11, 2013
app pub date -
Oct 9, 2012
filing date -
Oct 11, 2011
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Abandoned
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Abstract
The invention describes methods of preparation and compositions of plasticizers. The plasticizers include at least 2 alkyl ketal ester moieties and have a molecular weight of greater than 300. In one aspect, the alkyl ketal ester moieties are levulinic ester ketals. Certain compositions contain at least one of an antioxidant, a UV stabilizer, a thermal stabilizer or mixtures thereof, present in the composition from about 0.01 to about 5.0 percent by weight of the total composition.
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