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Neutral paint stripper

A paint remover and neutral technology, applied in the direction of chemical paint/ink remover, coating, etc., can solve problems affecting product quality, waste of resources, environmental pollution, etc., and achieve the goal of reducing the amount of pollution treatment and usage Effect

Inactive Publication Date: 2012-02-01
宁波英科特精工机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Whether it is an acidic paint remover or an alkaline paint remover, it will be corrosive to the substrate while removing the paint. This property will affect the quality of the product and cause a waste of resources.
[0006] 2. This kind of paint remover has certain pollution to the environment. The use of this kind of paint remover does not meet the current environmental protection requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Select 63% dichloromethane by weight, 5% methyl alcohol, 8% ethanolamine, 8% ethylene glycol ether, 6% methylcellulose, 5% sodium dodecylbenzenesulfonate, 2 % paraffin, the rest is water, and each component is 100 kilograms in total. The above-mentioned components are added successively in a closed reactor with a stirrer. The order of addition has no effect on product performance. In this embodiment, the selected stirring time 40 minutes, in other embodiments of the present invention also can choose to stir 30 minutes, 35 minutes, 45 minutes, 50 minutes, the time of stirring can be different according to the difference of outside temperature, generally can realize this fully in 40 minutes. The effect of the invention, but when the temperature of the outside is high, the stirring time can be appropriately reduced, such as 30 minutes or 35 minutes, and even less time can also realize the present invention. When the outside temperature is low, a longer stirring time should...

Embodiment 2

[0025] In each embodiment of the present invention, the reaction time and the selected reaction kettle or storage container are all the same or similar, and will not be described repeatedly in the following embodiments. Different only is the weight ratio of each component, in the present embodiment, the weight ratio of each component of paint remover is, the dichloromethane of 69%, the methyl alcohol of 5%, the ethanolamine of 8%, the ethylene glycol of 8% Alcohol ethyl ether, 3% methyl cellulose, 2% sodium dodecylbenzenesulfonate, 2% paraffin, and the rest are water, each component is 100 kg in total. Other implementation conditions are identical with embodiment one.

Embodiment 3

[0027] In the present embodiment, select 65% dichloromethane, 10% methanol, 5% ethanolamine, 5% ethylene glycol ether, 6% methylcellulose, 5% dodecylbenzenesulfonic acid Sodium, 2% paraffin, all the other are water, each component adds up to 100 kilograms, and other implementation conditions are identical with embodiment one.

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Abstract

The invention relates to a neutral paint stripper which can be widely used in the paint strippers of various primer films. The neutral paint stripper mainly comprises dichloromethane, methanol, ethanolamine, 2-ethoxyethanol, carboxymethyl cellulose, sodium alkyl benzene sulfonate, paraffin wax and water.

Description

technical field [0001] The invention belongs to the field of functional fine chemicals, in particular to a neutral paint remover. Background technique [0002] Paint is widely used to protect and decorate the surface of objects, but during use, the paint film of paint can be damaged, aged, or maintained or renewed for aesthetic reasons. When maintaining or updating, the usual practice is to remove the original coating and then re-spray. [0003] The paint film is mainly composed of film-forming substances, pigments, fillers and appropriate additives. The paint-removing principle of the paint remover is to use the solvent to dissolve or swell the film-forming substances to destroy the structure of the paint film or the relationship between the paint film and the substrate. combination. [0004] In the prior art, the removal of the paint film has all been treated with a paint remover, and physical treatment has been rarely used. And existing paint remover can be divided int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/04
Inventor 柏宝兰
Owner 宁波英科特精工机械股份有限公司
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