Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Starch-modified sodium alkyl benzene sulfonate derivative and application thereof

A sodium alkylbenzene sulfonate and starch modification technology, which is applied to medical preparations containing active ingredients, cosmetic preparations, skin care preparations, etc., can solve the problem of unsatisfactory data, meager profit growth, and high costs and other problems, to achieve the effect of economical and simple preparation process, broad application prospects, and wide source of raw materials

Inactive Publication Date: 2020-07-31
李丽红
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, sodium alkylbenzene sulfonate, as a kind of anionic surfactant with strong detergency, belongs to strong irritating anionic surfactant in its own nature, and some impurity metal ions are not further purified in its industrial preparation method. , so sodium alkylbenzene sulfonate has unsatisfactory data on the irritation and toxicity of skin and the care of clothing, so it cannot be applied to high-end industries of daily chemicals, such as laundry detergent and personal care products, baby products, etc.
This will inevitably limit the further application of sodium alkylbenzene sulfonate; on the other hand, the profits of high-end daily chemical products are constantly being diluted with the fierce market competition. Expensive surfactants are the core components, which will inevitably lead to meager or even negative growth in profits

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Starch-modified sodium alkyl benzene sulfonate derivative and application thereof
  • Starch-modified sodium alkyl benzene sulfonate derivative and application thereof
  • Starch-modified sodium alkyl benzene sulfonate derivative and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A starch-modified sodium alkylbenzenesulfonate derivative having the following structure:

[0029]

[0030] Among them, the reaction mechanism is as follows:

[0031]

[0032] This reaction is essentially the reaction of sodium sulfonate with hydroxyl groups on starch. The raw material alkyl diphenyl ether disulfonate sodium derivative has two sodium sulfonate groups. Due to the steric effect, the hydroxyl group on the starch will preferentially react with the para-position sodium alkylbenzene sulfonate to generate the above product . Therefore it is very important to strictly control the amount of reactant starch and alkyl diphenyl ether sodium sulfonate derivatives. Usually, the excess of starch should not exceed 20%, so as to avoid the excessive hydroxyl and alkyl diphenyl brought in the starch. The sodium sulfonate in the ortho or para position in the ether disulfonate derivative reacts again, and the generated by-product does not have the function of surfac...

Embodiment 2

[0036] A starch-modified sodium alkylbenzenesulfonate derivative having the following structure:

[0037]

[0038] Among them, the reaction mechanism is as follows:

[0039]

[0040] The steps of its preparation method are:

[0041] Mix the derivatives of sodium alkyl diphenyl ether disulfonate and starch at a ratio of 1:1.2, use 20 wt% potassium hydroxide solution as a catalyst, and add 1 wt% of the starch. Then react at 120°C for 5h, and then dry at high temperature to obtain the product. Yield = 88%, purity 93%.

Embodiment 3

[0043] A starch-modified sodium alkylbenzenesulfonate derivative having the following structure:

[0044]

[0045] Among them, the reaction mechanism is as follows:

[0046]

[0047] The steps of its preparation method are:

[0048] Mix the derivatives of sodium alkyl diphenyl ether disulfonate and starch at a ratio of 1:1.1, use 10wt% sodium carbonate solution as a catalyst, and add 0.5wt% of the starch. Then react at 100°C for 4h, and then dry at high temperature to obtain the product. Yield = 84%, purity 90%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a starch-modified sodium alkyl benzene sulfonate derivative, of which the structural formula simultaneously contains a starch group and an alkyl phenyl group, and belongs to an anionic surfactant. The surfactant has the dual characteristics of starch and sodium alkyl benzene sulfonate, on one hand, the surfactant has all biological properties, no irritation and biodegradability of starch, and on the other hand, the decontamination activity of the sodium alkyl benzene sulfonate is reserved. Through a detergency test and an irritation test, related indexes of the starch-modified sodium alkyl benzene sulfonate derivative can be ranked in the front in the tested surfactant, and it is proved that the surfactant is an excellent multifunctional surfactant. In addition, the preparation process of the surfactant is economical and simple, the raw material source is wide, and the surfactant has a wide application prospect in high-end daily chemical products.

Description

technical field [0001] The invention belongs to the field of organic synthesis, and in particular relates to a starch-modified sodium alkylbenzenesulfonate derivative and an application thereof. Background technique [0002] Sodium alkylbenzene sulfonate (LAS) is a surfactant obtained by reacting alkylbenzene and sulfonic acid, and then reacting with sodium hydroxide. It has both lipophilic groups and hydrophilic groups, which is reflected in its performance Good detergency, wetting and emulsifying power. And among the many surfactant structures, sodium alkylbenzene sulfonate has a mature preparation process, huge and stable production capacity, and has been tested as the surfactant with the strongest decontamination ability, so it is not only widely used in detergents, In tableware washing products such as detergent and decontamination powder, it is also the core component of decontamination products used in heavy-duty and heavy-duty fields such as industrial cleaning and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08B31/04B01F17/42A61K8/73A61Q19/00C09K23/42
CPCC08B31/04A61K8/732A61Q19/00A61K2800/10C09K23/00
Inventor 不公告发明人
Owner 李丽红
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com