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Plastic laminate, preparation method thereof and plastic molded product

A manufacturing method and technology of plastic layers, applied in chemical instruments and methods, coatings, layered products, etc., can solve problems such as crimp dimensional stability, thermal shrinkage difference between layers, etc.

Active Publication Date: 2020-10-30
爱思开迈克沃解决方案有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]Despite the many advantages of plastic material hard coatings for mobile devices, curling and dimensional The problem of low stability

Method used

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  • Plastic laminate, preparation method thereof and plastic molded product
  • Plastic laminate, preparation method thereof and plastic molded product
  • Plastic laminate, preparation method thereof and plastic molded product

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0126] 1A. Preparation of membrane

[0127] PET films or PC films (samples 1-1 to 1-7) were prepared in single layers of various thicknesses. In addition, films (samples 1-9 and 1-11) in which two of the above-mentioned PET film or PC film were laminated were prepared.

[0128] In addition, a hard coat film (samples 1-8) was prepared by coating a hard coat (HC) resin composition having a thickness of about 15 μm on the above-mentioned PET film. At this time, by mixing 47.6 parts by weight of urethane acrylate oligomer resin (MIRAMERPU620NT, Miwon), 1.7 parts by weight of curing agent (Irgacure 184, Ciba) and 50.7 parts by weight Parts by weight of the solvent (toluene) to prepare the hard coat resin composition. The above-mentioned hard coat resin composition is coated on the surface of the substrate layer using a Meyer bar coater, etc., and dried at 80°C for 1 minute, and then heated at 400 mJ / cm 2 The conditions for UV curing.

[0129] In addition, two hard coat films prepared a...

experiment example 2

[0137] 2A. Preparation of membrane

[0138] Prepare PET film or PC film in various thicknesses. A film (samples 2-2, 2-4, 2-6 to 2-10) laminated with the above-mentioned PET film and / or PC film was prepared.

[0139] In addition, a hard coat film was prepared by coating a hard coat (HC) resin composition with a thickness of about 15 μm on the above-mentioned PET film, and the hard coat film was laminated with the PET film and / or PC film (Sample 2 -1, 2-3, 2-5). At this time, the preparation, coating, and curing conditions of the hard coat resin composition are the same as those in Experimental Example 1.

[0140] When the film is laminated, an adhesive with a thickness of about 5 μm is applied on the contact surface for bonding, and the type of adhesive, application and curing conditions are the same as in Experimental Example 1 above.

[0141] 2B. Test

[0142] For each film sample prepared, the curl change was tested in the same manner as in Experimental Example 1 above except that...

experiment example 3

[0148] 3A. Preparation of membrane

[0149] A hard coat film was prepared by coating a hard coat (HC) resin composition having a thickness of about 15 μm on the above PET film, and the hard coat film was laminated with a PC film and a PET film (Sample 3-1). At this time, the preparation, coating, and curing conditions of the hard coat resin composition are the same as those in Experimental Example 1.

[0150] In addition, hard coat films (Sample 3-2 to Sample 3-5) were laminated on both surfaces of the PC film as the center. At this time, the thickness of the hard coat layer is controlled in the range of 9 μm to 15 μm by diluting the hard coat resin composition.

[0151] When the film is laminated, an adhesive with a thickness of about 5 μm is applied on the contact surface for bonding, and the type of adhesive, application and curing conditions are the same as in Experimental Example 1 above.

[0152] 3B. Test

[0153] For each film sample prepared, the curl change was tested in the ...

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Abstract

A plastic laminate according to the present invention is designed to have a symmetrical laminated structure of plastic films provided by hard coating layers, thereby significantly reducing curl generation in a high temperature environment. In addition, the plastic laminate has controlled process conditions, compositions and thickness of each layer, thereby improving not only dimensional stability,but also properties such as antifouling properties and printability. In particular, a layer having a decorative function, such as a colored film, a color filter, a multilayer reflective polarizing film, a pattern layer, and an inorganic deposition layer, is used in the plastic laminate to provide a desired aesthetic effect. Accordingly, a plastic molded product molded from the plastic laminate has advantages of high durability and low cost, and thus can be applied as a front or rear cover of a mobile device by replacing conventional glass materials.

Description

Technical field [0001] The invention relates to a plastic laminate, a manufacturing method thereof, and a plastic molded body. Specifically, the present invention relates to a cover made of plastic material, which can replace the glass material suitable for the front cover or the back cover of a mobile device. Background technique [0002] The front cover or back cover of a mobile device generally uses glass material that has advantages in appearance, dimensional stability, and optical characteristics. However, due to external shocks, the front cover or back cover made of glass used in mobile devices is easily broken and scattered. In addition, according to the current trend of increasing the area of ​​mobile devices, when using a cover made of glass, it is difficult to reduce the weight and increase the cost (refer to Korean Patent Publication No. 2017-5755). [0003] Therefore, attempts to develop and use plastic materials to replace glass covers have begun. In particular, pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B7/12B32B27/08B32B27/06B32B7/023B32B33/00C09D175/14C09J133/04B29C69/00B29C65/48B29C45/00B29C59/04
CPCB32B27/365B32B27/36B32B7/12B32B27/08B32B7/023B32B33/00C09D175/14C09J133/04B29C69/00B29C65/48B29C66/45B29C45/00B29C59/04B32B2255/10B32B2255/26B32B2307/546B32B2307/416B32B2307/418B32B2307/406B32B2255/20B32B2255/205B32B2307/308B32B2307/552B32B2307/734
Inventor 赵洪烈冰广殷李敦徹具本哲
Owner 爱思开迈克沃解决方案有限公司
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