Alcohol water-soluble modified epoxy composite glue and preparation thereof

A water-soluble composite and water-soluble technology, applied in the direction of adhesives, adhesive types, adhesive additives, etc., can solve the problems of iron equipment corrosion, unfavorable packaging and transportation, and low adhesion, achieving low production costs and reduced Drying speed and adhesion fastness, the effect of short curing time

Inactive Publication Date: 2009-08-05
SICHUAN GUOHE NEW MATERIALS
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water-based adhesives are used in the production of composite films, and there are the following disadvantages: because the drying process of water is slower than that of organic solvents, it is necessary to increase the temperature of the drying tunnel or lengthen the drying tunnel during drying, which increases energy consumption; due to the presence of emulsifiers, water-based adhesives, Lead to low adhesion; water vapor will cause serious corrosion to iron equipment, etc.
[0004] The patent document CN1035772C describes a method for manufacturing an acrylate composite adhesive. The process conditions are based on ethyl acetate as a solvent, and the monomer composition is mainly acrylate (≥93%), and the product is low-concentration (25%) polymerization Such low-concentration products are not conducive to packaging and transportation. At present, the concentration of compound glue used in industry is generally 50-75%.

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
  • Alcohol water-soluble modified epoxy composite glue and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1: Preparation example of alcohol water-soluble modified epoxy composite glue

[0053] (1) Preparation of alcohol water-soluble modified epoxy resin copolymer:

[0054]In the reaction kettle equipped with stirring device, reflux condenser, heating temperature control and dropping device, add the mixed solution consisting of the following components in sequence. First add component A into the reaction kettle, stir and heat up to the reflux temperature of 75°C; slowly add component B into the reaction kettle for a total of 6 hours, and continue to react at 75°C for 1 hour after the dropwise addition; Slowly add component C diluent into the kettle, cool and discharge. 135 kg of alcohol water-soluble modified epoxy resin copolymers with a solid content of 73% were obtained.

[0055] A component: vinyl acetate 15kg

[0056] Ethanol or isopropanol 15kg

[0057] B component: vinyl acetate 10kg

[0058] 90% acrylic acid-epoxy adduct 20kg

[0059...

Embodiment 2

[0076] Embodiment 2: Preparation example of alcohol water-soluble modified epoxy composite glue

[0077] (1) Preparation of alcohol water-soluble modified epoxy resin copolymer:

[0078] In the reaction kettle equipped with stirring device, reflux condenser, heating temperature control and dropping device, add the mixed solution consisting of the following components in sequence. First add component A into the reaction kettle, stir and heat up to the reflux temperature of 70-75°C; slowly add component B into the reaction kettle for a total of 5 hours, and continue to cool at 75-80°C after dropping React for 2 hours; slowly add the component C diluent into the kettle, cool and discharge. 130 kg of alcohol water-soluble modified epoxy resin copolymers with a solid content of 72% were obtained.

[0079] A component: vinyl acetate 20kg

[0080] Ethanol or isopropanol 25kg

[0081] B component: vinyl acetate 20kg

[0082] 90% methacrylic acid-epoxy adduct 15kg ...

Embodiment 3

[0100] Embodiment 3: Preparation example of alcohol water-soluble modified epoxy composite glue

[0101] (1) Preparation of alcohol water-soluble modified epoxy resin copolymer:

[0102] In the reaction kettle equipped with stirring device, reflux condenser, heating temperature control and dropping device, add the mixed solution consisting of the following components in sequence. First add component A into the reaction kettle, stir and heat up to the reflux temperature of 70-75°C; slowly add component B into the reaction kettle, the total dropping time is 4 hours, and continue to cool at 75-80°C after the dropping is completed React for 1.5 hours; slowly add component C diluent into the kettle, cool and discharge. 132 kg of alcohol water-soluble modified epoxy resin copolymers with a solid content of 70% were obtained.

[0103] A component: vinyl acetate 15kg

[0104] Ethanol or isopropanol 20kg

[0105] B component: vinyl acetate 20kg

[0106] 90% maleic ...

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 alcohol-soluble modified tygoweld and a preparation method thereof, which belong to the technical field of the plastic packaging composite adhesive. The tygoweld is prepared to bicomponent composite adhesive by alcohol-soluble modified epoxy resin copolymer and firming agent, and the bicomponent composite adhesive can be dissolved in alcohol or mixed solvent of alcohol and water. The invention has better property of plastic-plastic composite adhesive, reduces the consumption of organic solvent and has the characteristics of environment protection. The invention also provides a preparation method of the alcohol-soluble modified epoxy resin copolymer and the firming agent.

Description

technical field [0001] The invention relates to an alcohol-water-soluble modified epoxy composite adhesive and a preparation method thereof, more specifically, the invention relates to a composite adhesive for preparing plastic packaging composite films and a preparation method thereof. Background technique [0002] In the field of composite packaging materials, composite adhesives are used for bonding and compounding between two or more layers of plastic films, and are the main raw materials for producing plastic packaging composite films. Composite adhesives can be divided into one-component adhesives and two-component adhesives. According to the different solvents used, they can be divided into traditional solvent-based adhesives, alcohol-soluble adhesives and water-based adhesives. Among them, environment-friendly composite adhesives, that is, alcohol-soluble and water-based adhesives, have been the focus of research and application at home and abroad in recent years. T...

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): C09J151/08C09J11/06
Inventor 邹明国
Owner SICHUAN GUOHE NEW MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap