High di(alkyl fatty ester) quaternary ammonium compound in esteramine from triethanolamine
AssigneeAkzo Nobel N.V.
InventorsPaul Albert Iacobucci, Ralph Franklin, Phuong-Nga Trinh
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Abstract
The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di-, and tri-ester components, wherein the amount of diester quaternary is greater than about 55% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a process for preparing said softening agent.
Claims23
A textile softening composition with improved stability and softening performance which comprises a fabric softening effective amount of a quaternary ammonium salt having mono-, di-, and tri-ester components of the following formulae (I)-(III):
- ##STR10## wherein each R can be the same or different and is represented by a substituted or unsubstituted hydrocarbon radical having from 12-22 carbon atoms and an Iodine Value of from about 20 to about 90, wherein said diester component (II) comprises greater than about 55 wt % and the triester component (III) comprises less than about 25 wt % based on the total amount of the quaternary ammonium salt and X.sup.- presents a softener compatable anion.
A process for the preparation of a quaternary ammonium salt which comprises reacting, at a temperature of from about 170.degree. C. to 210.degree. C.:
- I) a C.sub.12 -C.sub.22 substituted or unsubstituted fatty acid or mixture of fatty acids having an Iodine Value of from about 20 to about 90, and having less than about 20% trans double bonds, with
- II) an alkanolamine of the formula:
- ##STR11## wherein R, R.sub.1 and R.sub.2 are independently selected from C.sub.2 -C.sub.4 hydroxyalkyl groups, wherein the molar ratio of said fatty acid to alkanol amine is from about 1.6-1.8, and wherein said reaction temperature is increased from about 70.degree. C. to a range of from about 170.degree. to 210.degree. C., wherein the rate of temperature increase is maintained within a range of from about 0.8.degree. C. to 3.degree. C. per minute in order to obtain an ester composition with greater than about 55 wt % diester component and less than about 25 wt % triester component, and quaternizing same in order to obtain to quaternary ammonium salt.
Dependencies are inferred from the claim text.