Process for reacting large hydrophobic molecules with small...

C - Chemistry – Metallurgy – 08 – F

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C08F 8/00 (2006.01) C08C 19/00 (2006.01)

Patent

CA 2409136

A process for reacting relatively small hydrophilic carboxylic molecules with relatively large, hydrophobic hydrocarbon based molecules, said process comprising conducting the reacting in the presence of a sulfonic acid catalyst having solubilizing properties. In a preferred embodiment the large hydrophobic molecule comprises at least one member of the group consisting of (1) olefinically unsaturated hydrocarbons containing at least about 10 carbon atoms and (2) aliphatic hydrocarbyl group substituted hydroxy aromatic compounds wherein the aliphatic hydrocarbyl group contains at least 12 carbon atoms and the small hydrophilic molecule comprises a carboxylic reactant selected from the group consisting of compounds of the formula: R3C(O)(R4)nC(O)OR5; wherein each of R3 and R5 is independently H or a hydrocarbyl group, R4 is a divalent hydrocarbylene group, and n is 0 or 1, and reactive sources thereof.

Cette invention concerne un procédé destiné à faire réagir des molécules carboxyliques hydrophiles relativement petites avec des molécules à base d'hydrocarbures hydrophobes relativement grosses. Ce procédé consiste à déclencher la réaction en présence d'un catalyseur d'acide sulfonique doté de propriétés de solubilisation. Selon un mode de réalisation préféré, la molécule hydrophobe de grande taille comprend au moins un élément du groupe composé (1) d'hydrocarbures insaturés en oléfines enfermant au moins 10 atomes de carbone environ et (2) des composés aromatiques hydroxy substitués par un groupe hydrocrabyle aliphatique, lequel groupe hydrocarbyle aliphatique contient au moins 12 atomes de carbone. La petite molécule hydrophile comprend un réactif carboxylique pris dans le groupe de composés représentés par la formule R?3¿C(O)(R?4¿)¿n?C(O)OR?5¿. dans laquelle chaque R?3¿ et R?5¿ est indépendamment H ou un groupe hydrocarbyle, R?4¿ est un groupe hydrocarbylène divalent, et n vaut 0 ou 1, et des sources réactives de ces composés.

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