LOW TEMPERATURE OPERABILITY ADDITIVE COMPOSITIONS OF AVERAGE DISTILLATES
Additive composition enhancing the low temperature operability of average distillates beyond -20 DEG C comprising at least 40 % by weight of a composition consisting of: i) from 60 to 94 % by weight of an antisedimentation additive resulting from the reaction of at least one aliphatic dicarboxylic c...
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Main Authors | , , , , , |
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Format | Patent |
Language | English French |
Published |
06.04.1995
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | Additive composition enhancing the low temperature operability of average distillates beyond -20 DEG C comprising at least 40 % by weight of a composition consisting of: i) from 60 to 94 % by weight of an antisedimentation additive resulting from the reaction of at least one aliphatic dicarboxylic compound and one polyamine of general formula (II) wherein R is a saturated aliphatic radical comprising from 1 to 32 carbon atoms, n is 2-4 and m is 1-4; and ii) 6-40 % by weight of a dispersing-stabilizing additive having a molecular weight varying from 15000 to 50000 resulting from the esterification reaction of a linear alcohol having from 6 to 24 atoms with an organic acid such as maleic acid and its halides, the ester obtained being polymerized with itself or a copolymerizing compound selected from aliphatic dicarboxylic compounds.
Composition d'additifs améliorant l'opérabilité à froid des distillats moyens au-delà de -20 DEG C comportant au moins 40 % en poids d'une composition constituée de: i) 60 à 94 % en poids d'un additif d'antisédimentation résultant de la réaction d'au moins un composé dicarboxylique aliphatique et d'une polyamine de formule générale (II) où R est un radical aliphatique saturé comprenant de 1 à 32 atomes de carbone, n est compris entre 2 et 4 et m entre 1 et 4; et ii) 6 à 40 % en poids d'un additif dispersant-stabilisant de masse moléculaire comprise entre 15000 et 50000 résultant d'une réaction d'estérification d'un alcool linéaire ayant 6 à 24 atomes de carbone avec un acide organique tel que l'acide maléique et ses halogénures, l'ester obtenu étant polymérisé avec lui-même ou un composé copolymérisant choisi parmi les composés dicarboxyliques aliphatiques. |
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Bibliography: | Application Number: WO1994FR01138 |