Supercharge Your Innovation With Domain-Expert AI Agents!

Metal water-based polishing oil and preparation method thereof

A water-based, varnish technology, applied in coatings, fire-resistant coatings, etc., can solve the problems of insufficient cooking resistance and wear resistance of varnish on the outside of cans, and achieve improved curing efficiency, good water resistance, and improved machining The effect of performance and wear resistance

Active Publication Date: 2018-09-28
清远慧谷新材料技术有限公司
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of insufficient cooking resistance and abrasion resistance of existing pop-top varnishes, the invention provides a water-based varnish for metals and a preparation method thereof

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0056] Another embodiment of the present invention provides a method for preparing a metal water-based varnish, comprising the following steps:

[0057] Feeding: In the stirring state, add polyester modified water-based acrylic resin, part of co-solvent, liquid petroleum resin, amino resin, blocked isocyanate and organic acid catalyst to part of the water in sequence, and stir evenly;

[0058] Viscosity adjustment: Take a sample to test the viscosity, add the remaining water and the remaining co-solvent, and adjust the viscosity to 90±10s (T-4# cup, 25°C);

[0059] Get a water-based varnish for metal.

[0060] In the above preparation method, the stirring speed is 600-800 r / min.

[0061] Specifically, in some embodiments, when feeding, under agitation, polyester modified water-based acrylic resin, part of co-solvent, liquid petroleum resin, amino resin, blocked isocyanate, organic acid catalyst, defoamer, fluid The leveling agent and polyfluorowax are added to part of the wa...

Embodiment 1

[0066] This example is used to illustrate the water-based varnish for metal disclosed in the present invention and its preparation method.

[0067] (1) Synthesis of polyester-modified water-based acrylic resin: unsaturated polyester (containing six-membered ring structure, solid content of 70%, glass transition temperature of -15°C, acid value of 15mg KOH / g, degree of unsaturation (expressed by iodine value, in non-volatile matter) is 12.7) 70g, 400g ethylene glycol monobutyl ether and 250g n-butanol are dropped in the reactor, and the control reaction temperature is at 120 ℃; 10g tert-butyl peroxybenzoate Ester (initiator), 100g methyl methacrylate, 80g styrene, 150g butyl acrylate, 300g hydroxyethyl acrylate, and 80g acrylic acid were mixed evenly, and then added dropwise to the reaction kettle, and the dropping time was controlled to be 5 hours. After the monomer and the initiator are dropped, the incubation time is 3 hours. Then cool down naturally, add 700g of deionized ...

Embodiment 2

[0080] Embodiment 2 and embodiment 3 are used to illustrate the water-based varnish for metal disclosed by the present invention and its preparation method, including most of the operation steps in embodiment 1, and its difference is:

[0081] The composition and dosage of the metal water-based varnish adopt the composition and dosage shown in Example 2 and Example 3 in Table 1.

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
Glass transition temperatureaaaaaaaaaa
Acid valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses metal water-based polishing oil, and aims to overcome the shortcoming of poor boiling resistance and abrasion resistance of outer polishing oil of an existing beverage can. Themetal water-based polishing oil comprises, by weight, 40-60 parts of polyester modified water-based acrylic resin, 5-20 parts of liquid petroleum resin, 5-15 parts of amine resin, 2-8 parts of blocked isocyanate, 0.1-0.5 part of organic acid catalysts, 5-15 parts of co-solvents and 10-20 parts of water. The invention further discloses a preparation method of the metal water-based polishing oil. The metal water-based polishing oil has excellent high-temperature boiling resistance and abrasion resistance and can meet requirements in production and application processes of the beverage can, andthe technical characteristics of a paint film reach or exceed technical levels of existing similar products.

Description

technical field [0001] The invention belongs to the technical field of water-based coatings, and in particular relates to a metal water-based varnish and a preparation method thereof. Background technique [0002] Cans have the advantages of light weight, small size, unbreakable, and easy to carry, so they are favored by people and are widely used to hold beer, carbonated drinks, herbal tea, milk and other foods. At present, the outer surface of pop cans on the market is generally coated with ink and varnish to protect and beautify the can body. Chemical stability and abrasion resistance. In the production process of some pop-top cans, it is necessary to cook and sterilize the contents of the pop-top cans, which requires that the varnish on the outside of the pop-top cans also needs to have cooking resistance. However, the existing varnishes for outer cans of pop-top cans have deficiencies in cooking resistance and abrasion resistance, especially in high-temperature cookin...

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): C09D151/08C09D7/65C08F283/01C08F220/20C08F220/14C08F220/18C08F220/06C08F212/08
CPCC08F283/01C08L2205/03C09D5/18C09D151/08C09D7/65C08F220/20C08L57/02C08L61/20
Inventor 冯志德王小辉武永皓冀伟强
Owner 清远慧谷新材料技术有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com