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Sulfo succinate of ester of citric acid, fatty alcohol and polyglycol ether, preparation and use thereof

A technology of sulfosuccinate and polyethylene glycol ether, applied in chemical instruments and methods, preparations for skin care, pharmaceutical formulations, etc., can solve the problems of not meeting the requirements of actual use

Inactive Publication Date: 2009-05-20
EVONIK GOLD SCHMITTREVO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Although the citric acid-based products introduced in practice (such as glycerin-based mono- and / or di-fatty acid ester alkoxylates) have low toxicity and are mild products that do not irritate the skin, they are not as cleansing and solubility say, they are not up to the requirements for practical use

Method used

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  • Sulfo succinate of ester of citric acid, fatty alcohol and polyglycol ether, preparation and use thereof
  • Sulfo succinate of ester of citric acid, fatty alcohol and polyglycol ether, preparation and use thereof
  • Sulfo succinate of ester of citric acid, fatty alcohol and polyglycol ether, preparation and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] 1.1 Esterification

[0059] In nitrogen, 377g (1.79mol) citric acid monohydrate, 723.6g (1.97mol) REWOPAL R LA 4 * and 1.3 g of hypophosphorous acid were introduced into a reaction vessel equipped with a stirrer, thermometer, water separator and condenser.

[0060] The mixture was heated to 140° C. under a nitrogen atmosphere with good stirring and maintained at this temperature for 2 hours. During this time, almost the theoretical amount of reaction water is distilled off. When the reaction mixture was cooled to 80°C, the pressure was slowly reduced to 20 mbar, at which pressure the reaction was completed at 140°C.

[0061] The acid value of the reaction product was 200.

[0062] * = product and trademark of REWO Chemische Werke Gmbh; C with 4 ethylene oxide (EO) units, OHN 153 12 / 14 Fatty alcohol ethoxylates.

[0063] 1.2 Ethoxylation

[0064] After adding 4 g of alkyldimethylamine, 784 g of the citric acid monoester obtained in Example 1.1 were reacted in...

Embodiment 2

[0078] 2.1 Esterification

[0079] In nitrogen, 210g (1mol) citric acid monohydrate, 507g (1.1mol) REWOPAL R LA6 * and 1.3 g of hypophosphorous acid were introduced into a reaction vessel equipped with a stirrer, thermometer, water separator and condenser.

[0080] The mixture was heated to 140° C. under a nitrogen atmosphere with good stirring and maintained at this temperature for 2 hours. During this time, almost the theoretical amount of reaction water is distilled off. The reaction mixture was cooled to 80 °C and a vacuum of 20 mbar was applied to complete the reaction. The acid number of the final product was 173.

[0081] * = product and trademark of REWO Chemische Werke Gmbh; C with 6 ethylene oxide (EO) units and an OHN of 130 12 / 14 Fatty alcohol ethoxylates.

[0082] 2.2 Ethoxylation

[0083] After adding 3 g of alkyldimethylamine, 610 g of the citric acid monoester obtained in Example 2.1 were reacted in batches at 90° C. with 116 g of ethylene oxide in a...

Embodiment 3

[0097] 3.1 Esterification

[0098] In nitrogen, 141g (0.67mol) citric acid monohydrate, 470g (0.73mol) REWOPAL R LA 10 * and 1 g of hypophosphorous acid were introduced into a reaction vessel equipped with a stirrer, a thermometer, a water separator and a condenser.

[0099] The mixture was heated to 140° C. under a nitrogen atmosphere with good stirring and maintained at this temperature for 2 hours. During this time, an almost theoretical amount of reaction water was distilled off (acid number of the product: 121). The reaction mixture was cooled to 80 °C and a vacuum of 20 mbar was applied to complete the reaction. The acid number of the final product was 113.

[0100]* = product and trademark of REWO Chemische Werke Gmbh; C with 10 ethylene oxide (EO) units and an OHN of 90 12 / 14 Fatty alcohol ethoxylates.

[0101] 3.2 Ethoxylation

[0102] After addition of 2.6 g of alkyldimethylamine, 513 g of the citric acid monoester obtained in Example 3.1 were reacted in ...

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Abstract

The invention relates to polyglycol ether sulfo succinate of citric acid fatty alcohol ester in a general formula (1), a preparation method and applications thereof. In the formula (1), R is H or-CH3, which can be the same or different. R<1> is shown as the formula. R<2> is R<1> or H or R<3>. R<3> is alkyl or acyl provided with 8 to 22 carbon atoms, which is optionally substituted and / or contains a plurality of bonds, a and b can be the same or different and can range from 0 to 5, wherein, a plus b is more than or equal to 1, and c is 0 to 15 and X<+> is H<+> or positive ions.

Description

technical field [0001] The present invention relates to novel fatty alcohol citric acid ester polyethylene glycol ether sulfosuccinate, its preparation method and its application as cleaning agent and cosmetic preparation. Background technique [0002] Cosmetic preparations, especially those in the field of hair and body cleansing, such as showers, foam baths, shampoos and liquid soaps, contain anionic surfactants such as carboxylates, alkyl sulfates and Alkyl ether sulfates, and sulfosuccinates. [0003] These preparations should cleanse the skin surface, preferably only the film adhering to the skin surface, which may consist of body exudates such as sweat and fat, skin flakes or dirt deposited from the environment. The cleanser should not dry the skin, irritate the skin, or impair the normal function of the skin. [0004] However, since these preparations may cause skin irritation during frequent (almost daily in recent years) use, common so-called mild surfactants (suc...

Claims

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Application Information

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IPC IPC(8): C07C69/704A61K8/84A61Q5/02A61Q19/00A61Q19/10C11D1/74
Inventor E·霍恩-斯特克H-J·克勒G-F·乌尔班J·魏甘德C·默勒E·霍恩－斯特克H－J·克勒G－F·乌尔班
Owner EVONIK GOLD SCHMITTREVO
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