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70 results about "Isethionic acid" patented technology

Isethionic acid is an organosulfur compound containing a alkylsulfonic acid located beta to a hydroxy group. Its discovery is generally attributed to Heinrich Gustav Magnus, who prepared it by the action of solid sulphur trioxide on ethanol in 1833. It is a white water-soluble solid used in the manufacture of certain surfactants and in the industrial production of taurine. It is most commonly available in the form of its sodium salt (sodium isethionate).

Acne-removal repair stoste containing katsumade galangal seed extract and preparation method of acne-removal repair stoste

The invention discloses a preparation method of acne-removal repair stoste containing katsumade galangal seed extract, and belongs to the field of facial care. The acne-removal repair stoste comprisesthe following raw materials in parts by weight: 0.1-4 parts of a katsumade galangal seed extracting solution, 1-10 parts of polyalcohol, 1-10 parts of a moisturizing agent, 0.1-1 part of a thickeningagent, 0.02-0.1 part of a chelating agent, 0.1-1 part of a pH value regulator, 0.5-10 parts of an acne-removal repairing agent, 0.3-8 parts of a skin conditioner, 0.1-1 part of a preservative and thebalance of deionized water. In the invention, by adding various plant herbal acne-removal essences such as the katsumade galangal seed extract, tingia olibanoresin extract, centella asiatica extract,dendrobium stem extract, wild soyabean protein, herba houttuyniae extract, hexamidine di(isethionic acid) salt and the like, the acne-removal repair katsumade galangal seed stoste has the effects ofeffectively inhibiting excessive secretion of sebum, opening blocked pores, killing acne bacilli, eliminating inflammation and repairing damaged skin, so that the skin is recovered to a healthy and natural smooth state; in addition, the acne-removal repair stoste is mild and non-irritating.
Owner:DOCTOR PLANT GUANGDONG BIOTECHNOLOGY CO LTD

Method for preparing high-purity 4-(2-hydroxyerhyl) piperazine-1-erhaesulfonic acid through nanofiltration

The invention belongs to the technical field of organic matter preparation, and particularly relates to a method for preparing a high-purity 4-(2-hydroxyerhyl) piperazine-1-erhaesulfonic acid through nanofiltration. The method comprises the following steps: firstly, carrying out a condensation reaction on a 2-isethionic acid or 2-isethionate and N-hydroxyethyl piperazine so as to obtain 4-hydroxyethyl piperazine esilate; by using an acidifier, converting the 4-hydroxyethyl piperazine esilate into a 4-(2-hydroxyerhyl) piperazine-1-erhaesulfonic acid and salts of corresponding acidifiers, so that acidified mother liquor is obtained; diluting the acidified mother liquor into a solution (1-10 wt %) by using deionized water, removing the salts of corresponding acidifiers through nanofiltration, and carrying out evaporation and concentration on the obtained object, so that a 4-(2-hydroxyerhyl) piperazine-1-erhaesulfonic acid crude product is obtained; and finally, washing and drying the 4-(2-hydroxyerhyl) piperazine-1-erhaesulfonic acid crude product, so that a high-purity 4-(2-hydroxyerhyl) piperazine-1-erhaesulfonic acid is obtained. The 4-(2-hydroxyerhyl) piperazine-1-erhaesulfonic acid prepared according to the invention is not only high in purity and simple in operation process, but also environmental-friendly in production process, low in purification cost, high in yield, and suitable for industrial mass production.
Owner:XZL BIO TECHNOLOGY CO LTD

Porous carbon-based solid acid catalyst and preparation method thereof

The invention belongs to the technical field of material science, and discloses a porous carbon-based solid acid catalytic material with a large specific surface area and a mesoporous structure and a preparation method thereof. The catalyst takes a non-ionic surfactant F127 or P123 as a template agent and furfural as a carbon source, volatilization self assembly is carried out in the presence of isethionic acid so as to obtain a soft film type material, and high temperature crosslinking and carbonizing are then carried out for obtaining a sulfonate functionalization nano-porous carbon material; the template agent is removed under an ethanol reflowing condition, so that the nano porous carbon material is obtained. The material has the large specific surface area and has excellent acid catalytic performance, and the sulfonate functionalization mesoporous carbon catalytic material overcomes defects such as the low exposure degree and poor catalytic activity of an active center of a conventional acid catalytic material; moreover, the material can be used for overcoming the influences of the passivated hydrolization of the active center on the catalytic performance and regeneration capacity of the active center because the porous solid acid catalytic material of an inorganic framework is better than that of a hydrophile framework.
Owner:SHAOXING UNIVERSITY

Acne removal cream and preparation method thereof

The invention belongs to the field of cosmetics, and particularly relates to acne removal cream and a preparation method thereof. Cymene-5-alcohol and hexamidine or hexamidine bis(isethionic acid) salts in the acne removal cream are major ingredients for sterilization, inflammation diminishing and acne removal; tagemete and paeonol can be matched for enhancing the acne removal effect; paeonol canpromote the blood circulation of the face skin, can activate the senile surface cells, enables the skin to be white and tender, achieves the anti-aging effect, and particularly has a good effect on whelks; tagemete achieves an obvious allergy inhibition effect through H2 acceptor retardation; the itching symptom can be effectively relieved; a proper proportion of other raw materials such as anti-allergic agents, thickening agents, emulsifying agents, water-retention agents, skin conditioning agents, emollients, penetrants, analgesics, antiallergic agents, preservatives and perfuming agents arematched; the finally prepared acne removal cream has the advantages that the recipe is reasonable; the use is convenient; the acne removal effect is good; the healing restoration is fast; during theacne removal, the effect of promoting the skin wound restoration can be achieved at the same time.
Owner:广州市茗妍化妆品有限公司
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