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Aqueous coating agent for electronic component and manufacturing method of processing electronic component

A technology for electronic components and manufacturing methods, which can be used in the manufacture of printed circuits, coatings, electrical components, etc., can solve problems such as problems with organic solvents, and achieve excellent durability, high water and oil repellency, and high antifouling properties. excellent effect

Active Publication Date: 2015-05-06
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, organic solvents are problematic in terms of coating operations and the environment

Method used

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  • Aqueous coating agent for electronic component and manufacturing method of processing electronic component
  • Aqueous coating agent for electronic component and manufacturing method of processing electronic component
  • Aqueous coating agent for electronic component and manufacturing method of processing electronic component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0153] Hereinafter, although an Example and a comparative example are shown, and this invention is demonstrated concretely, these are only the specific examples of this invention, and this invention is not limited to these. Hereinafter, unless otherwise specified, % means % by weight.

[0154] The test methods and measurement methods used in the present invention and the following examples are as follows.

[0155] (1) Water repellent and oil repellent

[0156] The water and oil repellency of the copper foil portion of the test piece was evaluated using a contact angle meter (manufactured by Kyowa Interface Science Co., Ltd., CONTACT-ANGLE METER CA-DT).

[0157] (2) Resistance value

[0158] The surface resistance of the test piece was measured using a resistance measuring machine (manufactured by Advantest Co., Ltd., ULTRA HIGH RESISTANCE METER R8340A).

[0159] (3) Water resistance

[0160] The test pieces were immersed in deionized water at 25°C for 24 hours. The surfac...

manufacture example 1

[0165] Production Example 1 (Preparation of "Rf(C6)-DM" Polymer Aqueous Solution)

[0166] Stir and dissolve 73.30g CF in a four-neck flask 3 CF 2 -(CF 2 CF 2 ) 2 -CH 2 CH 2 O COC (CH 3 )=CH 2 [Rf (C6) methacrylate], 26.70g of dimethylaminoethyl methacrylate (DM), 150.00g of isopropanol (IPA), while nitrogen replacement, while maintaining at 60°C, add 2g of over tert-butyl oxypivalate was reacted at 60°C for 6 hours to obtain a polymer solution. At the end of the polymerization reaction, it was confirmed by gas chromatography that the monomer conversion rate reached 99% or more. Further, while stirring the polymer solution at 60° C., 10.20 g of CH 3 A mixed solution of COOH (acetic acid) and 300g of ion-exchanged water. Thereafter, IPA was removed under reduced pressure, and the solid content of the solution was determined from the evaporation residue after heating at 130° C. for 1 hour, and diluted with ion-exchanged water so that the solid content was 25 mass%, to...

manufacture example 2

[0167] Production Example 2 [Rf(C4)Cl-DM] and Production Example 3 [Rf(C2)-DM]

[0168] In Manufacturing Example 1, replace Rf(C6) methacrylate and DM with 63.00g CF respectively 3 CF 2 CF 2 CF 2 -CH 2 CH 2 OCOC(Cl)=CH 2 Except [Rf(C4) chloroacrylate] and 37.00 g of DM, it manufactured by the same method completely, and made the obtained product into manufacture example 2. Also, replace all but 59.62g CF with 3 CF 2 -CH 2 OCOC (CH 3 )=CH 2 [Rf(C2) methacrylate] and 40.38 g of DM were obtained in exactly the same manner as Production Example 3.

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Abstract

Disclosed is a coating agent for electronic components, which contains (1) a polymer having a repeating unit (A) derived from a fluorine-containing acrylate monomer and a repeating unit (B) derived from an amino group-containing monomer, and (2) an aqueous liquid medium. A coating can be easily formed on the surface of an electronic component by using the coating agent. The coating agent also enables formation of a coating film which excels not only in moisture prevention but also in chemical resistance, electrical insulation, weather resistance and durability.

Description

[0001] This case is filed on December 26, 2008 , the application number is 200880122620.5 , the name of the invention is " Water-based coating agents for electronic components Divisional application for " technical field [0002] The present invention relates to an aqueous coating agent for imparting excellent moisture resistance, water and oil repellency, and stain resistance to electronic and electrical components. In the present invention, the term "electronic component" means both an electronic component and an electric component. Background technique [0003] To control outdoor electronic and electrical equipment (such as telephones, signal machines, air conditioner outdoor units, switchboards, pole-mounted capacitors, mobile phones, portable relay antennas, automotive electronic equipment, marine electronic equipment, vending machines, mobile personal computers, etc.) , The technology of installing electronic and electrical circuit boards has gradually developed. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/16C09D133/14C09D7/12
CPCC09D133/16H05K3/285
Inventor 今堀裕司福田晃之
Owner DAIKIN IND LTD
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