Quaternary dialkanolamine esters
A technology of quaternary dialkanol amine ester and alkyl, which is applied in the field of novel quaternary ammonium compounds, can solve the problems of leaving traces, reducing mechanical stability and electrostatic charge, and increasing, achieving good efficacy and improving the effect of nursing effect
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Embodiment 1
[0140] Embodiment 1: Preparation of Compound 1 of the present invention
[0141] A mixture of 179.5 g (0.89 mol) lauric acid, 251.4 g (0.89 mol) oleic acid and 619 g (1.795 mol) behenic acid was homogenized at 70° C. in a flask with mechanical stirrer, column and distillation apparatus. Under a nitrogen atmosphere, 223.5 g (1.875 mol) of methyldiethanolamine were added dropwise, and the mixture was gradually heated to 190°C. The water of reaction was continuously distilled off. 2 h after reaching the target temperature, vacuum was applied and the reaction mixture was stirred at 190 °C for an additional 3 h. The acid value was 3.1 mg KOH / g, and the reaction mixture was cooled to 60°C.
[0142] Mix 771.4g (1.2mol) of the above-mentioned diester with 448g of C16-18 fatty alcohol, and add 73.5g (1.46mol) of methyl chloride in portions at 80-110°C in a pressure reactor so that the maximum pressure does not exceed 5 bar. After 5 h, the reaction mixture was analyzed, the total am...
Embodiment 2
[0143] Embodiment 2: the preparation of compound 2 of the present invention
[0144] In a flask with mechanical stirrer, column and distillation apparatus, a mixture of 60.1 g (0.3 mol) lauric acid, 196.0 g (0.7 mol) oleic acid and 362.1 g (1.05 mol) behenic acid was homogenized. Under a nitrogen atmosphere, 119.2 g (1.0 mol) of methyldiethanolamine was added dropwise, and the mixture was gradually heated to 190°C. The water of reaction was continuously distilled off. 2 h after reaching the target temperature, vacuum was applied and the reaction mixture was stirred at 190 °C for an additional 3 h. The acid number was 13.6 mg KOH / g, and the reaction mixture was cooled to 60°C.
[0145] Mix 701.0g (1.0mol) of the above-mentioned diester with 404g of C16-18 fatty alcohol, and add 75.8g (1.5mol) of methyl chloride in portions at 80-110°C in a pressure reactor so that the maximum pressure does not exceed 5 bar. After 5 h, the reaction mixture was analyzed, the total amine numbe...
Embodiment 3
[0146] Example 3: Testing of Hair Treatment Compositions Using Compounds of the Invention (Example 1 and Example 2)
[0147] For the performance evaluation, hair tresses that had been pre-damaged in a standardized manner by bleaching treatments were used. For this purpose, use standard barber products. Damage to hair strands is described in detail in DE10327871.
[0148] For performance evaluation, the compounds according to the invention Example 1 and Example 2 were used in simple cosmetic preparations.
[0149] The reference compound used was the commercially available alkyl quaternary ammonium behenyltrimethylammonium chloride (INCI) ( BT 85 balls, Evonik Goldschmidt GmbH) and the commercially available esterquat distearoyloxyethyldimethylammonium chloride (INCI) ( EQ 65 Ball, Evonik Goldschmidt GmbH).
[0150] The application properties in the case of use in conditioners were tested in the following formulations (Table 1):
[0151] Table 1: Conditioner formulations ...
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Abstract
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