Copolymers for use as paraffin behavior modifiers
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United States of America Patent
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Oct 20, 2015
Grant Date -
Jun 13, 2013
app pub date -
Dec 11, 2012
filing date -
Dec 13, 2011
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Abstract
Lactone/alkylene oxide polymers are useful as additives to inhibit or prevent the deposition of paraffin in hydrocarbon fluids, particularly crude oil produced from a subterranean formation. These polymers are random or block polymers made from addition reactions of a hydroxyl- and/or amine-containing base compound with at least one lactone monomer and at least one alkylene oxide monomer. In one non-limiting embodiment the lactone monomer is optional.
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