Coating film stripping composition and method for stripping coating film

A composition and film coating technology, which is applied in the direction of detergent composition, chemical instrument and method, non-surface active detergent composition, etc., can solve the problems not involving the removal of film film, reduce the removal time and reduce the risk of fire , Viscosity improvement effect

Inactive Publication Date: 2019-11-22
NEOS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the composition is used as a cosmetic, and the invention does not relate to smear removal

Method used

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  • Coating film stripping composition and method for stripping coating film
  • Coating film stripping composition and method for stripping coating film
  • Coating film stripping composition and method for stripping coating film

Examples

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[0036] The present invention is specifically described below with reference to Examples. However, the present invention is not limited to these examples.

[0037] In the following examples and comparative examples, the following cellulose derivatives, polyvinyl alcohol and polyvinylpyrrolidone were used.

[0038] Cellulose Derivatives

[0039] Cellulose derivative 1: Metolose SM-400 produced by Shin-Etsu Chemical Co., Ltd

[0040] Cellulose derivative 2: Metolose 60SH-4000 produced by Shin-Etsu Chemical Co., Ltd.

[0041] Cellulose derivative 3: Metolose 65SH-4000 produced by Shin-Etsu Chemical Co., Ltd.

[0042] Cellulose derivative 4: Metolose 90SH-4000 produced by Shin-Etsu Chemical Co., Ltd.

[0043] Cellulose derivative 5: Metolose SM-4000 produced by Shin-Etsu Chemical Co., Ltd.

[0044] Polyvinylpyrrolidone

[0045] Pitzcol K-90 manufactured by DKS Co.Ltd.

[0046] polyvinyl alcohol

[0047] Kuraray Poval PVA105 produced by Kuraray Co., Ltd.

[0048] ■Examples ...

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Abstract

The present invention provides a coating film stripping composition having a pH in the range of 5 to 9, and containing water, benzyl alcohol and at least one type of cellulose derivative.

Description

technical field [0001] The present invention relates to a coating film remover composition used in the step of removing old coating films of steel road bridges, buildings, vehicles, airplanes, etc., and a method for removing the coating films. Background technique [0002] In order to replace the old coating film with a new long-life coating film, recoat the coating film of bridges, etc. to reduce the frequency of maintenance; or to remove harmful substances contained in the old coating film (such as hexavalent chromium, lead or PCB) . [0003] Recoating to replace old paint film involves removal of old paint film. This coating film removal has been performed by a physical removal method such as a blast method. However, the blasting method involves increased waste due to dust and environmental degradation of workers and adjacent areas. In order to solve these problems, a method of using a paint film remover containing a chlorinated solvent such as methylene chloride as a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/00C11D7/26C11D7/50
CPCC11D7/26C11D7/50C09D9/005Y02W30/62C11D7/261
Inventor 西本真人上田嵩大吉村和也
Owner NEOS CO LTD
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