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

Composition for reducing whitening phenomenon of adhesive and alpha-cyanoacrylate adhesive

A technology of cyanoacrylate and adhesive, which is applied in the direction of non-polymer organic compound adhesives, adhesive additives, adhesives, etc., can solve the problems of high cost and harsh sizing environment, and achieve the improvement of quality and adhesive The drop surface is smooth and bright, and the effect of reducing costs

Active Publication Date: 2021-02-05
HEBEI CHENGXIN
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the existing problems of high cost and strict requirements on the sizing environment in solving the problem of α-cyanoacrylate adhesive whitening, the present invention provides a composition for reducing the phenomenon of adhesive whitening and α-cyanoacrylate Acrylic Adhesives

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
  • Composition for reducing whitening phenomenon of adhesive and alpha-cyanoacrylate adhesive
  • Composition for reducing whitening phenomenon of adhesive and alpha-cyanoacrylate adhesive
  • Composition for reducing whitening phenomenon of adhesive and alpha-cyanoacrylate adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The present embodiment provides a kind of α-cyanoacrylate ethyl ester adhesive, comprises following component:

[0059] α-Ethyl cyanoacrylate 1000g, maleic anhydride 2g, hexadecyl gallate 2.5g, p-methoxyphenol 1g, boron trifluoride-ether complex 0.04g, dibenzo-18-crown- 6 0.5 g.

[0060] The preparation method of the above-mentioned α-cyanoacrylate ethyl ester adhesive is as follows:

[0061] Weigh each component according to the designed ratio, and completely dissolve the solids of each component while stirring at room temperature to obtain the α-cyanoacrylate ethyl ester adhesive.

Embodiment 2

[0063] The present embodiment provides a kind of α-cyanoacrylate ethyl ester adhesive, comprises following component:

[0064] 1000g of ethyl α-cyanoacrylate, 2g of phthalic anhydride, 2.5g of lauryl gallate, 1g of p-methoxyphenol, 0.04g of boron trifluoride-ether complex, dibenzo-18-crown-6 0.5g.

[0065] The preparation method of the above-mentioned α-cyanoacrylate ethyl ester adhesive is as follows:

[0066] Weigh each component according to the designed ratio, and completely dissolve the solids of each component while stirring at room temperature to obtain the α-cyanoacrylate ethyl ester adhesive.

Embodiment 3

[0068] The present embodiment provides a kind of α-cyanoacrylate ethyl ester adhesive, comprises following component:

[0069] α-Ethyl cyanoacrylate 1000g, itaconic anhydride 2g, maleic anhydride 1g, gallic acid 2.5g, lauryl gallate 2g, p-methoxyphenol 1g, boron trifluoride-diethyl ether complex 0.04g, Dibenzo-18-crown-6 0.5g.

[0070] The preparation method of the above-mentioned α-cyanoacrylate ethyl ester adhesive is as follows:

[0071] Weigh each component according to the designed ratio, and completely dissolve the solids of each component while stirring at room temperature to obtain the α-cyanoacrylate ethyl ester adhesive.

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 the technical field of alpha-cyanoacrylate adhesives, and particularly discloses a composition for reducing the whitening phenomenon of an adhesive and an alpha-cyanoacrylateadhesive. The composition for reducing the whitening phenomenon of the adhesive comprises an anhydride compound and gallic acid or an alkyl ester derivative of gallic acid. The anhydride compound andthe gallic acid or the alkyl ester derivative of the gallic acid are combined and added into the alpha-cyanoacrylate adhesive, and the whitening phenomenon of the alpha-cyanoacrylate adhesive, especially the alpha-cyanoacrylate low-alkyl ester adhesive, can be remarkably improved through the synergistic effect of the anhydride compound and the gallic acid or the alkyl ester derivative of the gallic acid, the surfaces of glue drops are smooth and bright. The composition provided by the invention can play dual effects of enhancement and low whitening, significantly improves the quality of alpha-cyanoacrylate adhesives, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of α-cyanoacrylate adhesives, in particular to a composition for reducing the whitening phenomenon of adhesives and α-cyanoacrylate adhesives. Background technique [0002] α-cyanoacrylate adhesive is a kind of one-component monomer type fast-curing adhesive, which has the advantages of rapid curing at room temperature, wide range of bonding materials, low viscosity and thin adhesive layer. And wood and other fields have been widely used. However, α-cyanoacrylate adhesives, especially α-cyanoacrylate lower alkyl ester adhesives, have a whitening phenomenon after curing, that is, whitening phenomenon, which limits their application in wood, handicrafts to a certain extent. and applications in electronics. [0003] The whitening phenomenon mainly occurs around the glue drop. The main reason is that the active molecules in the glue are scattered around the glue before solidification, and finally unreacted 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
Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/06C09J4/04
CPCC09J11/06C09J4/00
Inventor 王虹李成果张朝纯董津李娟张林杰孙洁浩
Owner HEBEI CHENGXIN
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