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

Water-soluble system structure based on isocyanate-yl alkyl alkoxy silane and preparation method thereof

A technology of ester-based alkylalkoxysilane and ester-based alkoxysilane, which is applied in the field of isocyanate-based alkylalkoxysilane water-soluble system structure and its preparation, and can solve the storage stability and service life of water-based systems Limited, unsuitable silane, limited water solubility of water-based silane system, etc., to achieve good hydrophobic effect, good stability, and good water solubility

Inactive Publication Date: 2010-05-26
武汉壁千韧硅涂料有限公司
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aqueous silane systems obtained by these methods have limited water solubility, and some aqueous systems have limited storage stability and shelf life; they are also not suitable for silanes containing functional groups that react with water

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
  • Water-soluble system structure based on isocyanate-yl alkyl alkoxy silane and preparation method thereof
  • Water-soluble system structure based on isocyanate-yl alkyl alkoxy silane and preparation method thereof
  • Water-soluble system structure based on isocyanate-yl alkyl alkoxy silane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Take 50g of dehydrated polyoxyethylene ether glycol with a molecular weight of 500, and 50g of solvent toluene, and add it to a four-necked flask with a reflux dripping device, a stirring device, a thermometer and an inert gas inlet to account for the total amount. 0.5% dibutyltin dilaurate was used as a catalyst, and argon gas was introduced, and the temperature was raised to 80°C. Then, 49.4 g of γ-isocyanatopropyltriethoxysilane was slowly added dropwise. After the dropping was completed, the reaction was kept warm, and the isocyanate content was measured every 30 min, and the reaction was stopped when it reached 0. The resulting mixture is distilled under reduced pressure to remove the solvent to obtain a water-soluble silane product. The product is light yellow transparent liquid.

Embodiment 2

[0054] Take 100 g of dehydrated single-ended hydroxy polyoxyethylene ether with a molecular weight of 1000, and 50 g of solvent toluene, and add it to a four-necked flask with a reflux dripping device, a stirring device, a thermometer and an inert gas inlet to account for the total amount. 0.5% dibutyltin dilaurate was used as a catalyst, and argon gas was introduced, and the temperature was raised to 80°C. Then, 24.7 g of γ-isocyanatopropyltriethoxysilane was slowly added dropwise. After the dropwise addition, the reaction was kept warm, and the isocyanate content was measured every 30 min, and the reaction was stopped when it reached 0. The resulting mixture is distilled under reduced pressure to remove the solvent to obtain a water-soluble silane product. The product is light yellow transparent liquid.

Embodiment 3

[0056] Get 100g of polyoxyethylene ether glycol with a molecular weight of 2000 after dehydration treatment, 50g of solvent toluene and ethyl acetate mixture, add it to a four-necked flask with a reflux dripping device, a stirring device, a thermometer and an inert gas inlet , 0.7% of the total amount of stannous octoate was used as a catalyst, argon gas was introduced, and the temperature was raised to 80°C. Then, 20.5 g of γ-isocyanatopropyltrimethoxysilane was slowly added dropwise. After the dropping was completed, the reaction was kept warm, and the isocyanate content was measured every 30 min, and the reaction was stopped when it reached 0. The resulting mixture is distilled under reduced pressure to remove the solvent to obtain a water-soluble silane product. The product is light yellow transparent liquid.

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 provides a water-soluble system structure based on isocyanate-yl alkyl alkoxy silane and a preparation method thereof. A proper hydrophilic group is led into a molecular chain of the isocyanate-yl alkylalkoxy silane to achieve the purpose of water solubility, and the water-soluble system has the following main structure, wherein Y represents a hydrophilic chain segment, such as a polyethenoxy ether chain segment, a polyoxypropylene ether chain segment, a poly (oxyethylene-oxypropylene) copolyether ester chain segment and a chain segment containing a sulfonic group; R3 represents a bivalent alkyl group; R4 represents H or an alkyl group; and M is K, Na, H, NH4+ and an organic amino group. The water-soluble system contains is solvent free, is environment-friendly and innoxious, can be used for metal surface processing or used as an additive, and can be applied to a resin or paint system.

Description

technical field [0001] The invention relates to a water-soluble system structure based on an isocyanatoalkylalkoxysilane and a preparation method thereof. Specifically, the preparation method and structural composition of a water-soluble silane system are obtained by reacting the isocyanate group of the isocyanate group alkylalkoxysilane with the terminal active hydrogen compound containing a hydrophilic group under the action of a catalyst. Background technique [0002] With the increasing awareness of international environmental protection, water-based materials of various types are becoming an increasingly active and important research direction. Organosilane is a kind of important industrial auxiliaries, known as "industrial monosodium glutamate". Therefore, the water-based silane research has gradually become the focus of research and attention of major companies and scientific research institutes. [0003] German patent DE 102005004872A1 discloses a method for prepar...

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): C08G18/71C08G18/48C08G18/24C07F7/18
Inventor 吴小峰张群朝王德才
Owner 武汉壁千韧硅涂料有限公司
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