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Preparation method of water plastics-absorbing oil

A technology of water-based plastic-absorbing oil and water-soluble rosin, which is applied in the field of preparation of water-based plastic-absorbing oil, can solve problems such as poor construction process, high heat-sealing temperature, and poor decoration, and achieve improved gloss, good compatibility, and film-forming performance excellent effect

Inactive Publication Date: 2004-02-04
广州电器科学研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fundamentally solve the shortcomings of water-based blister oil, such as poor construction process, high heat sealing temperature, low gloss and poor decoration, and at the same time reduce the content of organic film-forming additives to less than 2%, improve the drying speed of blister oil, and eliminate production and use. Environmental pollution and personal hazards in the process, improve product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a three-necked flask with a stirrer and a thermometer, add 72 parts of deionized water and 8 parts of triethanolamine, heat up to 60°C, add 20 parts of water-soluble rosin-modified maleic acid resin with a molecular weight of about 10,000, and stir at a high speed. Heat at 60° C. for 1 hour to obtain a rosin-modified maleic acid resin solution with a solid content of 20%, the measured viscosity is 20-30 seconds, and the pH value is 8-9. [Example 2]

Embodiment 2

[0023] In a three-necked flask with a condensing tube, a dropping device, an agitator, and a thermometer, add 30 parts of rosin-modified maleic acid resin solution with a concentration of 20% of low molecular weight, 25.5 parts of deionized water and 2 parts of compound type Emulsifier, heated to 75°C, added 0.4 parts of potassium persulfate, added dropwise the following mixed monomers: 9.8 parts of styrene, 8 parts of methyl methacrylate, 0.5 parts of acrylic acid, 17.6 parts of ethyl acrylate, 0.2 parts of acrylamide, After adding in 2 hours, keep the reaction at 75°C for 1 hour, cool down to below 60°C, add 2 parts of propylene glycol methyl ether acetate, 3 parts of wax emulsion, 0.4 parts of other additives, filter through a 150-mesh screen to obtain water-based blister oil , The solid content is 42.1%. When the plastic-absorbing oil reaches the plastic-absorbing strength of 0.2N / cm, the minimum heat-sealing temperature required is 103°C, and the gloss of the coating film...

Embodiment 3

[0024] The mixed monomer is composed of 15.9 parts of styrene, 7 parts of isobutyl methacrylate, 13 parts of butyl acrylate, 0.5 part of acrylic acid, and 0.2 part of methylol acrylamide. Plastic oil with a solid content of 42.6%. [Example 4]

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PUM

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Abstract

By using low molecular weight water soluble rosen modified maleic resin as dispersion resin, using anionic surfaceactive agent and non-ionic surfactant as compounded emulsifier and using persulfate as initiator and under the condition of 60-90 deg.C said invention utilzies styrene and acrylic acid system monomer or other unsaturated monomer and makes them implement free-radical emulsion copolymerization, then adds prepared wax emulsion and small quantity of film-forming adjuvant and other adjuvant, and utilizes ammonia water to make neutralization and filtration so as to obtain the invented water plastics-absorbing oil.

Description

Technical field: [0001] The invention relates to a preparation method of water-based plastic-absorbing oil. Blister packaging for various daily necessities. Background technique: [0002] Water-based blister oil is an emulsion, and its film-forming resin is usually styrene-acrylic resin, which is obtained by emulsion polymerization. In order to ensure smooth bonding during heat sealing, the emulsion is required to have sufficient viscosity, but high viscosity often causes various process problems when the glazing machine is coated with blister oil. If the viscosity of the emulsion is to be reduced and the adhesion requirements are to be met, it is often necessary to increase the heat-sealing temperature, and if the heat-sealing temperature is too high, it will cause the plastic cover to age and become white. In addition, the currently commercially available blister oils are mainly solvent-based. In order to ensure the film-forming ability and gloss of a few water-based pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F220/04
Inventor 胡乐晖
Owner 广州电器科学研究院有限公司