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Method of forming polyalkene substituted carboxylic acid compositions

A polyalkene, carboxylic acid technology, applied in the field of polyalkene-substituted carboxylic acid, anhydride or ester composition

Active Publication Date: 2013-04-24
INFINEUM INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, it will be apparent to those of ordinary skill in the art that post-treatment of dicarboxylic acid systems with mineral acids can lead to decarboxylation of the polymer as well as degradation of the

Method used

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  • Method of forming polyalkene substituted carboxylic acid compositions

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] In order to confirm the effect of the method of the present invention, by making 2225M n Polyisobutene (PIB) and maleic anhydride (MA) were reacted in a simultaneous chlorination / maleization reaction under the following conditions in the presence and absence of specified amounts of polyisobutene-soluble iron salts (in Isopar-L solvent Iron(III) neodecanoate; Fe concentration in solution was 6% by mass) to form a series of polyisobutylene succinic anhydride (PIBSA) products with various functionality / SAP values. The SAP value, chlorine content and sediment content of the resulting PIBSA products were then measured and compared. The results are shown in Table 1 as follows:

[0051]

Embodiment 2

[0054] In order to confirm the adverse effect of higher metal content on the formation of PIBSA product, by making 2225 M n Polyisobutene (PIB) and maleic anhydride (MA) in a simultaneous chlorination / maleization reaction under the following conditions (i) in the absence of polyisobutene-soluble iron salts (iron(III) neodecanoate) and (ii ) in the presence of an iron salt soluble in polyisobutylene to provide more than 2 ppm iron (mass ppm in PIB) reacted to form a PIBSA product with the indicated functionality / SAP values. The SAP value, chlorine content and sediment content of the active ingredient (AI) of the resulting PIBSA product were then measured and compared. The results are shown in Table 2 below:

[0055] Table 2

[0056] sample number 11 12 Invention / comparison Compared Compared Add Fe species no yes Fe concentration (mppm in PIB) --- 3.0 MA / PIB feed ratio (m / m) 0.065 0.065 Cl 2 / PIB feed ratio (m / m) ...

Embodiment 3

[0060] In order to use other metal salts soluble in polyisobutylene to confirm the effect of the method of the present invention, by making 2225M n Polyisobutene (PIB) and maleic anhydride (MA) were soluble in the indicated feed ratios (feed ratios of reactants) in a simultaneous chlorination / maleation reaction under the following conditions in the presence and absence of In the case of nickel and copper salts of polyisobutylene (Ni(II)-2-ethylhexanoate and Cu(II)-2-ethylhexanoate), the polyisobutylene succinic anhydride (PIBSA) product is formed. The SAP value, chlorine content and sediment content of the resulting PIBSA products were then measured and compared. The results are shown in Table 3 below:

[0061] table 3

[0062] sample number 13 14 15 16 17 Invention / comparison Compared this invention this invention this invention this invention Add metal substances no yes yes yes yes metal substance --- Ni N...

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Abstract

This invention relates to methods of forming polyalkene-substituted carboxylic acid compositions. When the reaction is carried out in the presence of a controlled amount of a metal compound, the formation of polyolefin-substituted carboxylic acids by the halogen-assisted reaction of polyolefins with at least one ethylenically monounsaturated monocarboxylic or dicarboxylic acid, anhydride or ester is reduced. Residual chlorine content of acid acylating agents.

Description

technical field [0001] The present invention relates to a method of forming polyalkene-substituted carboxylic acid, anhydride or ester compositions having minimal residual halogen content. More specifically, the present invention relates to a process for forming polyalkene-substituted carboxylic acid, anhydride or ester compositions having minimal residual halogen content, wherein the polyalkene is combined with at least one ethylenically monounsaturated monocarboxylic or dicarboxylic acid, anhydride Or esters undergo halogen-assisted reactions in the presence of controlled amounts of metal compounds. Background technique [0002] Compositions formed by reacting polyalkene-substituted carboxylic acids, anhydrides or ester compositions with amines, alcohols and / or reactive metal compounds are known to be useful additives providing improved dispersion, detergency and and / or viscosity properties. The polyalkene-substituted carboxylic acid, anhydride or ester composition itsel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/00C08F8/46C08F110/10
CPCC08F8/46C08F8/22C08F110/10
Inventor R·J·塞尔维特A·古铁雷斯J·古铁雷斯R·文卡特拉姆J·R·斯潘塞A·J·贝克
Owner INFINEUM INT LTD
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