Housing and method for making same

a housing and housing technology, applied in the direction of application, superimposed coating process, liquid/solution decomposition chemical coating, etc., can solve the problems of paint coating having an uneven thickness, prone to accumulate at the corner or bended regions, and uneven thickness of paint coating

Inactive Publication Date: 2013-10-17
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present disclosure relates to a housing and a method for making the housing. The technical effect of the patent is to provide a method for making a housing with a thin and evenly formed coating that protects the plastic substrate from abrasion. The coating solution is made by mixing a silane coupling agent, an organic solvent, and deionized water, and then mixing this with epoxy resin while stirring at a high speed. The coating solution can be spray painted on the surface of the plastic substrate and dried.

Problems solved by technology

However, on some parts of the housing, such as corner regions or bended regions, the paint coating commonly has an uneven thickness and the thickness in these parts is usually greater than the desired or designed thickness.
This is because during the spray painting process, paint is prone to accumulate at the corner regions or bended regions.
However, the paint commonly has a high viscosity, therefore, reducing the thickness of the paint coating can cause an unevenness of the entire paint coating.

Method used

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  • Housing and method for making same
  • Housing and method for making same

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example

[0017]Experimental example of the present disclosure is described as follows.

[0018]The sol solution is made by mixing γ-aminopropyl triethoxysilane, isopropyl alcohol, and deionized water, wherein the mass ratio of the γ-aminopropyl triethoxysilane, isopropyl alcohol and deionized water is 10:87:3, respectively. The coating solution is made by mixing the sol solution and the epoxy resin while stirring at a high speed, wherein the mass ratio of the sol solution to the epoxy resin is 75:25.

[0019]The coating solution is spray painted on the surface of the plastic substrate 11 using a blowgun, and then dried at an environmental temperature of 100° C. for 45 min to form the layer 13. The layer 13 is transparent. The pencil hardness of the layer 13 is higher than H. The plastic substrate 11 is made of polycarbonate.

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Abstract

A housing includes a plastic substrate and a layer formed on the plastic substrate. The layer contains polysiloxane and epoxy resin. The layer is very thin, but evenly forms on the surface of the plastic substrate. The layer has a high hardness and can effectively protect the plastic substrate from abrasion.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure relates to a housing and a method for making the housing.[0003]2. Description of Related Art[0004]Housings of electronic devices are usually spray painted to form paint coatings on the housings. However, on some parts of the housing, such as corner regions or bended regions, the paint coating commonly has an uneven thickness and the thickness in these parts is usually greater than the desired or designed thickness. This is because during the spray painting process, paint is prone to accumulate at the corner regions or bended regions. Thickness of the paint coating may be decreased to avoid the accumulation of the paint. However, the paint commonly has a high viscosity, therefore, reducing the thickness of the paint coating can cause an unevenness of the entire paint coating.[0005]Therefore, there is room for improvement within the art.BRIEF DESCRIPTION OF THE FIGURE[0006]Many aspects of the housing can be better understo...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): B32B27/28B05D1/02B05D1/18B05D3/02
CPCC09D163/00C08G59/504C08L83/08Y10T428/1352
InventorZHOU, SHU-XIANG
OwnerSHENZHEN FUTAIHONG PRECISION IND CO LTD