Dispersant material for mitigating crude oil fouling of process equipment and method for using same
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United States of America Patent
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Issued Date -
Nov 24, 2005
app pub date -
May 20, 2004
filing date -
May 20, 2004
priority date (Note) -
Abandoned
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Abstract
An improved dispersant material for mitigating crude oil fouling comprises a reaction product of a polyamine and a polyisobutylene succinyl anhydride made with a polyisobutylene having a vinylidene double bond content of at least 50%. The reaction product has an active nitrogen atom content of at least about 2% by weight. The reaction product is prepared by thermally reacting the polyisobutylene with maleic anhydride to produce said polyisobutylene succinyl anhydride and thereafter reacting the polyisobutylene succinyl anhydride with a polyamine having 5 to 7 active nitrogen atoms.
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