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Water-repellent coating composition and water-repellent coating substrate coated with same

A waterproof coating and waterproof coating technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve problems such as low adhesion of substrates, and achieve low processing costs and excellent durability. Effect

Active Publication Date: 2019-08-09
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, functional coatings with water-repellent properties are easy to apply on glass with high surface energy, while they create durability problems in plastic substrates with relatively low surface energy due to low adhesion to the substrate
Therefore, it is difficult to apply functional coatings directly onto plastic substrates

Method used

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  • Water-repellent coating composition and water-repellent coating substrate coated with same
  • Water-repellent coating composition and water-repellent coating substrate coated with same
  • Water-repellent coating composition and water-repellent coating substrate coated with same

Examples

Experimental program
Comparison scheme
Effect test

preparation example

[0062] 0.2 g of fluorinated silane (DAIKIN, OPTOOL UD509), 50 g of fluorinated solvent (3M, Novec-7200), 2 g of ethanol (Burdick & Jackson) and 0.05 g of phosphoric acid (Shinetsu, D-220) were mixed and stirred for 10 minutes , to prepare a waterproof coating composition.

Embodiment 1

[0066] The waterproof coating composition of the preparation example was flow-coated on a PET (SKC, 250 μm) substrate, and then thermally cured in an oven at 85° C. for 30 minutes to form a waterproof coating.

Embodiment 2

[0068] A waterproof coating was formed in the same manner as in Example 1 except that LCD glass (100 mm×100 mm, thickness 0.5T (500 μm)) was used as a base material.

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PUM

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Abstract

The present invention relates to a water-repellent coating composition and, particularly, to a water-repellent coating composition comprising a phosphoric or phosphate compound, thereby improving adhesion and durability.

Description

technical field [0001] The present invention relates to a waterproof coating composition, and particularly to a waterproof coating composition having improved adhesion and durability by containing phosphoric acid or a phosphoric acid-based compound. Background technique [0002] The following description merely provides background information related to the present disclosure and may not constitute prior art. [0003] Recently, there is a trend from using glass or tempered glass substrates to using plastic substrates in portable electronic products such as smartphones, tablets, notebook computers, etc., and in light and shatterproof display products for products. However, plastic substrates have not actually been used in products because they suffer from poor mechanical strength, durability, weather resistance, and optical properties compared to glass substrates. [0004] In order to overcome the disadvantages of plastic substrates, research has been actively carried out so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/16C09D183/00C09D7/61C09K3/18
CPCC09D7/40C09K3/18C09D5/00C08K2003/329C08K2003/321C09D7/61C09D7/63C08G77/46C08G77/24C08G77/30C08G77/06C08K5/5419C08K3/32C09D183/12C09D5/1681C09D183/00C09D7/47C09D7/48C09D7/20C09D5/1675C09D183/04C08K5/52C08K5/521C09D183/08
Inventor 张星根吴星渊金斗植崔胜皙南东缜申圭淳
Owner DONGJIN SEMICHEM CO LTD
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