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Removable coating composition

A composition and coating technology, applied in the direction of coating, device for coating liquid on the surface, special surface, etc., can solve the problems of poor film-forming property and unusable composition

Inactive Publication Date: 2004-08-25
林丽股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] When the above-mentioned resin composition for peelable coating is used at low temperature, its film-forming property is poor, and the composition itself cannot be used in some cases

Method used

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  • Removable coating composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 7

[0131] The monomers that can be used in the first polymerization step and the monomers used in the second polymerization step were prepared from different components in the composition ratios shown in Table 1. Polymers 1 to 7 were then prepared from the above monomers by two-stage emulsion polymerization.

[0132] 1) Preparation of monomer mixture for the first polymerization step

[0133] Dissolve the UV absorber in methyl methacrylate. To the resulting solution were added deionized water and a 25% aqueous solution of nonylpropenylphenylethoxyether ammonium sulfate (HS-10, a product of Dai-Ichi Kogyo Seiyaku Co., Ltd.). An emulsified monomer mixture was prepared by emulsifying the mixture by stirring and slowly adding another monomer.

[0134] 2) Preparation of monomer mixture for the second polymerization step

[0135] A 25% aqueous solution of HS-10 was added to deionized water, and the solution was stirred. Monomers are added to this solution, thereby preparing an emul...

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PUM

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Abstract

A composition for peelable coating, which composition exhibits excellent properties such as film-formability and water resistance and can be dried at ambient temperature without any particular heating, to thereby provide excellent coating performance. The composition contains a core / shell copolymer including an acrylic copolymer portion A having a high glass transition temperature of 30 DEG C-70 DEG C and an acrylic copolymer portion B having a low glass transition temperature of 5 DEG C to -30 DEG C and being formed through multi-step polymerization. The core / shell copolymer is made up of 5-40 wt.% of the acrylic copolymer portion A and 60-95 wt.% of the acrylic copolymer portion B, on the basis of the total amount of the portion A and the portion B.

Description

technical field [0001] The present invention relates to a composition for a peelable coating, and more particularly to a water-soluble composition for a peelable coating, which is suitable for temporarily protecting the appearance of an article and forming a coating film excellent in physical properties and peelability. Background technique [0002] Prior to delivery to customers, automobiles and other vehicles (herein simply referred to as vehicles) are typically stored in open storage or transported under their own power or by truck, trailer or boat. During storage or transportation, vehicles may be damaged by contact with other objects, or by media such as sand dust, iron powder, salts, alkalis and acids; smoke; bird droppings; dead insects or insect body fluids; sunlight ; or other factors such as acid rain damage (such as spots, fading, staining, aging). [0003] Once a vehicle is damaged or contaminated, its commercial value will be significantly reduced. To prevent ...

Claims

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Application Information

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IPC IPC(8): B05D5/00B05D7/24C08F265/04C08F265/06C08L51/00C09D5/02C09D5/20C09D151/00
CPCC09D151/003C08F265/04C08L51/003C08F265/06C09D5/20C08L2666/02
Inventor 山下宪二松木雅之松山德积远藤贵训东条英明黑田尚司
Owner 林丽股份有限公司