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Paint stripper

A paint remover and main solvent technology, applied in the direction of chemical paint/ink remover, coating, etc., to achieve the effect of high paint removal efficiency

Inactive Publication Date: 2008-02-27
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of the overall paint removal effect, these paint removers do not contain dichloromethane. In actual use, due to the different properties of the paint film, the paint removal time is 2-3 hours, and some are even longer.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] 1. Preparation and application of paint remover:

[0041] 1. Preparation or weighing:

[0042] Prepare or weigh the following components: (1) Component A: halogenated alkanes, such as dichloromethane, 1,2-dichloroethane, n-bromopropane; (2) Component B: cosolvent, such as ethanol; ( 3) Component C: an acidic component, which may be a mixed acid; (4) Component D: a thickener, such as cellulose or its derivatives.

[0043] Then, accurately measure components A, B, and C in a 500ml three-necked flask according to the preparation ratio, stir well with an electromagnetic stirrer, add component D, stir vigorously until uniform, and obtain the finished product, which is sealed and stored.

[0044] 2. The application process of paint remover:

[0045] Wash the paint film; dry the paint film with a cloth; draw 1cm with a compass 2 The circle; apply the quantitative paint remover to the circle; record the time and phenomenon of paint removal.

[0046] 2. Test method:

[0047...

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Abstract

The invention discloses a paint stripper to remove epoxy paint film, in particular to a paint stripper for paint film of bilge paint and ship surface paint, which comprises the following parts: main solvent, thickener, acid component and random solutizer.

Description

technical field [0001] The present invention relates to a kind of paint stripper, especially for removing the paint film of epoxy paint, especially the paint stripper for removing the paint film of boat bottom paint and the paint film of ship top paint, and described paint stripper mainly comprises main solvent , thickeners, acidic components and optionally co-solvents. Background technique [0002] Paint can protect and decorate objects, but with use, the paint film can be damaged and gradually age, or it can be repaired and renewed for aesthetic reasons. When painting or repairing household appliances, mechanical equipment, furniture, vehicles and ships, etc., it is necessary to remove old or damaged coatings and then apply them. In the aviation industry and the shipping industry, due to the needs of aesthetics and safety, it is also necessary to periodically remove the paint and refurbish it. The old paint film is mainly composed of film formers, pigments, fillers and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/00
Inventor 徐同宽崔励谭凤芝曲丰作贾春学王井
Owner DALIAN POLYTECHNIC UNIVERSITY
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