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

Highly hydrolysis-resistant and anti-stick adhesive for aluminum-plastic composite labels and its preparation

An aluminum-plastic compounding and adhesive technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problems of insufficient bonding strength, slow curing speed, sticky back and other problems

Active Publication Date: 2021-04-27
SHANGHAI WEIKAI CHEM +2
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are very few existing aluminum-plastic composite label adhesives on the market, and only two are widely used, but there are still insufficient bonding strengths, and there are slow curing speeds, which require aging for more than 5 days. For special properties such as acid and alkali resistance The requirements are even more powerless, and there is still a risk of sticking to the back
Among them, the risk impact of sticky back is the most important, which may make the label scrapped and cannot store information

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
  • Highly hydrolysis-resistant and anti-stick adhesive for aluminum-plastic composite labels and its preparation
  • Highly hydrolysis-resistant and anti-stick adhesive for aluminum-plastic composite labels and its preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The present embodiment relates to a preparation method of an anti-stick back aluminum-plastic composite label adhesive, comprising the following process steps:

[0033] (1) first put all solvent, namely 49.99 kilograms of ethyl acetate into the reactor, and be heated to about 40 ℃ and stir;

[0034] (2) keep stirring and put 40 kilograms of side vinyl polyester polyols, 10 kilograms of modified epoxy resins, and 10 kilograms of hydroxy acrylic resins into the reactor successively, and stir about 1 hour;

[0035] (3) 0.01 kilogram of bismuth-zinc composite catalyst and 2 kilograms of chain extender (trimethylolpropane) are slowly dropped into the reactor after being mixed evenly;

[0036] (4) After all solids are dissolved and mixed uniformly, measure the solid content and adjust to the theoretical value;

[0037] (5) Stir slowly for about 1 hour, cool, weigh and pack to obtain component A;

[0038] (6) Mix 2 g of azobisisobutyronitrile with 40 g of polyisocyanate curi...

Embodiment 2

[0041] The present embodiment relates to a preparation method of an anti-stick back aluminum-plastic composite label adhesive, comprising the following process steps:

[0042] (1) first put all solvents, namely 39.95 kilograms of ethyl acetate, 10 kilograms of butanone into the reactor, and be heated to about 50 ℃ and stir;

[0043] (2) keep stirring and put 40 kilograms of side propylene polyester polyols, 10 kilograms of modified epoxy resins, and 10 kilograms of hydroxy acrylic resins into the reactor successively, and stir about 1 hour;

[0044] (3) 0.05 kilogram of bismuth-zinc composite catalyst and 1 kilogram of chain extender (triethanolamine) are slowly dropped into the reactor after being mixed evenly;

[0045] (4) After all solids are dissolved and mixed uniformly, measure the solid content and adjust to the theoretical value;

[0046] (5) Stir slowly for about 1 hour, cool, weigh and pack.

[0047] (6) Mix 2 g of azobisisobutyronitrile with 40 g of polyisocyanate...

Embodiment 3

[0050] The present embodiment relates to a preparation method of an anti-stick back aluminum-plastic composite label adhesive, comprising the following process steps:

[0051] (1) first put all solvent, namely 47.97 kilograms of butyl acetate into the reactor, and be heated to about 50 ℃ and stir;

[0052] (2) keep stirring and drop 40 kilograms of side styrene-based polyester polyols, 10 kilograms of modified epoxy resins, and 20 kilograms of hydroxy acrylic resins into the reactor successively, and stir about 1 hour;

[0053] (3) 0.04 kilograms of bismuth-zinc composite catalyst and 3 kilograms of chain extenders (dimethylthiotoluenediamine) are slowly dropped into the reactor after being mixed evenly;

[0054] (4) After all solids are dissolved and mixed uniformly, measure the solid content and adjust to the theoretical value;

[0055] (5) Stir slowly for about 1 hour, cool, weigh and pack.

[0056] (6) Mix 2 g of azobisisobutyronitrile with 40 g of polyisocyanate curing ...

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

PropertyMeasurementUnit
peel strengthaaaaaaaaaa
peel strengthaaaaaaaaaa
peel strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a highly hydrolysis-resistant and anti-adhesive adhesive for aluminum-plastic composite labels and its preparation; the adhesive is composed of A component and B component, and the A component includes polyester poly Alcohol, modified epoxy resin, hydroxyl acrylic resin, chain extender, catalyst, solvent; the B component includes initiator, isocyanate curing agent. The adhesive of the present invention is particularly suitable for the bonding of aluminum foil or aluminum-plated layer and PET film; it has high bonding strength to aluminum-plastic composite materials, has good acid and alkali resistance, and damp heat aging resistance, and uses the adhesive of the present invention Adhesive, adhesive layer and adhesive layer, adhesive layer and aluminum all have good anti-sticking properties; after the aluminum-plastic composite label etching process, the sample roll will not damage the label due to sticking back.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a high hydrolysis-resistant and anti-sticking back adhesive used for aluminum-plastic composite labels and a preparation method thereof. Background technique [0002] With the rapid development of Internet of Things technology, the application of electronic tags will be greatly promoted. Among them, the application prospect of aluminum-plastic composite labels is the best. Many domestic enterprises have introduced international advanced aluminum-plastic composite label production lines. The comprehensive performance of the products can reach the industry standard. However, some special materials used for aluminum-plastic composite labels Imports are also required, such as special inks, special adhesives, barrier coatings, etc. [0003] There are very few existing aluminum-plastic composite label adhesives on the market, and only two are widely used, but there are s...

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 Patents(China)
IPC IPC(8): C09J175/06C08G18/42C08G18/22
CPCC08G18/222C08G18/227C08G18/42C09J175/06
Inventor 张如红吴小娟丁万强沈敬文王建文
Owner SHANGHAI WEIKAI CHEM
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