Fluorinated coating composition and article treated with same

A coating agent and content technology, applied in the direction of biocide-containing paints, coatings, antifouling/underwater coatings, etc., can solve the problems of storage stability, nozzle clogging, damage to transparency, optical properties, etc., Achieve the effect of improving storage stability, maintaining antifouling performance, and excellent antifouling performance

Inactive Publication Date: 2015-11-25
SHIN ETSU CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moisture in the solvent reacts with the hydrolyzable silyl group, causing double polymerization to multipolymerization between polymers, sometimes causing gelation and polymer precipitation, causing problems in storage stability
[0007] In addition, even if gelation and polymer precipitation do not occur, if the molecular weight of the polymer increases, nozzle clogging may occur during spray coating, inkjet coating, and dip coating, and the film thickness on the surface of the substrate may be easily damaged. Inhomogeneity occurs, a uniform film cannot be formed and sufficient performance cannot be obtained, and transparency and optical properties are impaired

Method used

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  • Fluorinated coating composition and article treated with same
  • Fluorinated coating composition and article treated with same
  • Fluorinated coating composition and article treated with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6、 comparative example 1～3

[0269] Confirmation of preservation

[0270] The above-mentioned coating agents (processing agents A to I) were measured using gel permeation chromatography (GPC), and the production ratio of high molecular weight bodies of 2 or more polymers was calculated. The measurement conditions are as follows. The results are shown in Table 3.

[0271] [measurement conditions]

[0272] Developing solvent: Hydrochlorofluorocarbon (HCFC)-225

[0273] Flow rate: 1mL / min

[0274] Detector: Evaporative Light Scattering Detector

[0275] Column: TSKgelMultiporeHXL-M manufactured by Tosoh Corporation

[0276] use 2 sticks

[0277] Column temperature: 35°C

[0278] Sample injection volume: 100 μL (solution with a concentration of 0.1% by mass)

[0279] 【table 3】

[0280] Examples, comparative examples

Embodiment 7～12、 comparative example 4～6

[0282] Formation of cured film and evaluation of transparency and abrasion resistance

[0283] On glass (Gorilla II manufactured by Corning Co., Ltd.), the coating agents (treatment agents A to I) prepared in Table 2 were coated using a spray coating device (NST-51; manufactured by Ti-And Kei Co., Ltd.) % under an atmosphere of 1 hour to form a cured film (film thickness: about 15 nm), and produce a test body.

[0284] The haze (transparency) measurement and abrasion resistance test of this test body were performed under the conditions shown below. The results are shown in Table 4.

[0285] [Haze measurement conditions]

[0286] The haze of the test body produced above was measured with the following apparatus according to JISK7136.

[0287] Device name: NDH-500 (manufactured by Nippon Denshokusha)

[0288] [Abrasion resistance test conditions]

[0289] The abrasion test was performed 10,000 times under the following conditions, and the contact angle of the surface with...

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PUM

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Abstract

The invention provides a fluorinated coating composition and article treated with the same. The fluorinated coating composition has high preservation stability before the use and at a solution state, and can form even coating film on substrate in a stable way. The fluorinated coating composition is characterized by comprising a (A) hydrolytic group-contained silane and/or other part hydrolytic condensation compound having modified fluorine polyether polymer, and a solvent (B) capable of evenly dissolving the hydrolytic group-contained silane and/or other part hydrolytic condensation compound having modified fluorine polyether polymer. The hydrolytic group-contained silane and/or other part hydrolytic condensation compound having modified fluorine polyether polymer takes up of 0.01 to 5% by weight of the whole coating composition; and humidity content measured by a Carl-fisher principle and contained in the solvent (B) is lower than 20ppm according to mass exchange calculation.

Description

technical field [0001] The present invention relates to a coating agent containing a hydrolyzable group-containing silane modified with a polymer containing a fluoropolyether group. Form a uniform coating film on the surface stably, and form a coating film excellent in water and oil repellency and low dynamic friction, containing silane containing hydrolyzable groups modified with polymers containing fluoropolyether groups and / or its partially hydrolyzed condensate coating agents and articles treated with the coating agents. Background technique [0002] In recent years, the use of touch panels on screens has accelerated, including displays for mobile phones. However, the screen of the touch panel is often completely exposed, and there are many chances of direct contact with fingers, cheeks, etc., and dirt such as sebum is easy to adhere to, which has become a problem. Therefore, in order to improve the appearance and visibility, there are increasing demands for technologi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D5/14C09D7/12C03C17/30
Inventor 松田高至山根祐治
Owner SHIN ETSU CHEM IND CO LTD
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