Pollutant removal method

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By using a self-release film composition containing membrane-based components, volatile solvents and silicone compounds, the problem of difficulty in efficiency and safety in the prior art removal of pollutant substances is solved, and the effects of spontaneous peeling and membrane recovery after drying are achieved.

CN116848204BActive Publication Date: 2025-03-25KAO CORP

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Patent Information

Application Number: CN202280014721.0
Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner
Priority Date: 2021-02-12
Filing Date: 2022-02-14
Publication Date: 2025-03-25
Estimated Expiration: 2042-02-14

Application Information

Patent Timeline

12 Feb 2021

Priority

14 Feb 2022

Application

CN202280014721.0

25 Mar 2025

Publication

CN116848204B

IPC: C09D201/00; C09D133/00; C09D129/04; C09D125/08; C09D101/02; C09D7/65; B08B7/00; B08B3/08; B05D7/24; B05D3/12

CPC: C09D5/20; C09D7/65; C09D129/04; C09D7/20; B08B7/0014; C08L2205/02; C08L2205/03; C09D105/00

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Application Domain

Cellulose coatings Pretreated surfaces

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AI Technical Summary

Technical Problem

The prior art is difficult to efficiently and safely remove contaminants attached to the surface of the equipment, especially in the peeling process after drying, which is prone to problems such as starting point and membrane recycling.

Method used

The self-release film composition containing membrane-based components, volatile solvents and silicone compounds is used to remove the contaminants together with the coating film by a spontaneous peeling mechanism after drying.

Benefits of technology

It realizes simple removal of pollutant substances and recycling of coatings in a short period of time, reduces the risk of operators inhaling harmful substances, and is suitable for various complex surfaces.

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Abstract

The present invention provides a method for removing pollutants, which is a method for removing pollutants attached to the surface of an object, the method comprising: a step of applying a self-peeling film-forming composition containing components (A) to (C) to the surface of the object to which the pollutants are attached to form a coating film, a step of drying the coating film, and a step of removing the pollutants together with the coating film by self-peeling of the coating film accompanying the drying. (A) Film-forming component; (B) volatile solvent; (C) silicone compound.

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