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Mdea ester quats with high content of monoester in blends with TEA ester quats

A technology of quaternary ammonium salts and blends, applied in detergent compositions, cationic surface-active compounds, surface-active detergent compositions, etc., can solve the problem of uncontrollable production of TEA ester quaternary ammonium salts and quaternary ammonium salts , can not play a good role in softening and other problems, to achieve the effect of improving the softening result

Inactive Publication Date: 2007-10-17
EVONIK DEGUSSA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Triethanolamine (TEA) ester quaternary ammonium salt is a common ester quaternary ammonium salt commonly used in Europe, but because TEA ester quaternary ammonium salt cannot soften well under the washing conditions in North America, TEA is not widely used in the North American market Esterquat
Quaternary ammonium salts prepared in the manner disclosed in DE '038 do not allow controlled production of MDEA with high monoester content

Method used

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  • Mdea ester quats with high content of monoester in blends with TEA ester quats
  • Mdea ester quats with high content of monoester in blends with TEA ester quats
  • Mdea ester quats with high content of monoester in blends with TEA ester quats

Examples

Experimental program
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Effect test

Embodiment 1

[0120]This example shows that by using high monoalkyl groups in MDEA esterquats, i.e., MDEA esterquats with high monoester content, the TEA esterquats can be formulated as higher solids with high softening properties. content. This example also shows that blends of standard MDEA esterquats (low monoester or low monoalkyl) with standard TEA esterquats result in results that are not as effective as pure MDEA esterquats, but more effective than standard TEA esterquats. TEA ester quats for better blending products. This data suggests that one can expect better performance than the additive effect of these two blended softeners. On the other hand, the data for the compositions of the invention demonstrate a true synergy rather than an additive effect.

[0121] The softening effectiveness of the formulations in this example was determined by judging the softening of cotton towels washed in the same manner and rinsed with known amounts of the softener formulations of the present in...

Embodiment 2

[0161] This example demonstrates the importance of providing a blend of MDEA esters and TEA esters prepared from separately prepared quaternary ammonium salts. It is important to prepare the MDEA esterquat in this manner to maximize the production of the mono-alkyl or mono-esterquat. DE 19642038 C1 teaches that blends of MDEA and TEA quaternary ammonium salts can be prepared by blending polyamines prior to esterification and quaternization. Preparation of quaternary ammonium salts in this manner does not allow for the controlled production of high mono MDEA which is the key to the blends of the present invention.

[0162] Compound

[0163] The present representative softener blend is statistically superior to the blend taught in said German patent.

[0164] Compound

[0165] This data shows that the softener of the German patent thickens on standing, especially at higher solids. When formulated to the same solid content, the special quaternary ammonium sa...

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PUM

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Abstract

A fabric softener composition in which a blend of high mono alkyl MDEA and TEA ester quats is provided. The fabric softener composition includes a blend of from about 15 to about 65 %, by weight of the total blend, of a triethanol amine ester quat and from about 35 to about 85 %, by weight of the total blend, of a methyl diethanol amine ester quat having a mono alkyl ester quat level of about 10 % or greater.

Description

technical field [0001] The present invention relates to fabric softener compositions, and more particularly to fabric softening comprising a blend of methyldiethanolamine (MDEA) esterquat (quat) and triethanolamine (TEA) esterquat An agent composition wherein the MDEA esterquat has a high content of monoester. The fabric softener compositions of the present invention provide improved softening performance compared to either ingredient alone. In addition, the fabric softener compositions of the present invention are capable of providing high solids formulations that form stable dispersions that retain long-term stability. technical background [0002] In North America, methyldiethanolamine (MDEA) esterquat is commonly used as a softener in various fabric softener formulations. MDEA ester quaternary ammonium salt is usually prepared by reacting various fatty acids such as tallow fatty acid with MDEA; 2,2'-methyliminodiethanol, also known as MDEA, has the basic structural for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D1/645C11D3/00C11D1/62
CPCC11D1/62C11D3/0015C11D7/3209C11D7/3254
Inventor 罗伯特·O.·基斯克里斯托弗·J.·托尼戴维·L.·耶韦特
Owner EVONIK DEGUSSA GMBH
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