Laminate film for molded decoration

A laminated film and molded body technology, applied in decorative art, decorative structure, special decorative structure, etc., can solve the problems of surface scars, reduced appearance decoration, reduced visual recognition, etc., to achieve excellent decoration, easy molding, The effect of excellent reliability

Active Publication Date: 2018-11-23
นิปปอน เพนท์ ออโตโมทีฟ โคทติ้งส์ โค แอลทีดี
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, when protecting a display panel, for example, the decorative laminate film must have long-term visibility reliability that does not easily reduce visibility due to scratches on the outermost surface, etc., even under long-term use conditions.
However, since the laminated film having a hard coat layer on the surface as shown in the above-mentioned patent documents has low scratch resistance, a large number of scratches are generated on the surface due to long-term use.
As a result, the visibility of the protected display panel is reduced
Also, the decorativeness of the appearance is also reduced due to a large number of scratches

Method used

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  • Laminate film for molded decoration
  • Laminate film for molded decoration
  • Laminate film for molded decoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0243] The present invention is further specifically illustrated by the following examples, but the present invention is not limited thereto. The "parts" and "%" in the examples are based on quality standards without particular limitation.

[0244] [Preparation of acrylic copolymer containing unsaturated double bond as the second component]

[0245] A mixture containing 171.6 g of isobornyl methacrylate, 2.6 g of methyl methacrylate, and 9.2 g of methacrylic acid was mixed. To 330.0 g of methyl isobutyl ketone heated to 110°C under a nitrogen atmosphere in a 1000 ml reaction vessel equipped with a stirring blade, a nitrogen introduction tube, a condenser, and a dropping funnel, the mixed solution and the mixture containing peroxy-2- A solution of 1.8 g of tert-butyl ethylhexanoate and 80.0 g of propylene glycol monomethyl ether was added dropwise at a constant rate over 3 hours, and then reacted at 110° C. for 30 minutes. Then, to 0.2 g of tert-butyl peroxy-2-ethylhexanoate, a so...

preparation example 1~11

[0247] The components described in the following Table 1 were mixed in the amounts described in the following Table 1 to prepare hard coating composition preparation examples 1 to 11.

[0248] In Hard Coating Composition Preparation Examples 9 and 10, an acrylate monomer or oligomer was used as the first component, and the unsaturated double bond-containing acrylic copolymer prepared as described above was used as the second component.

[0249] In Hard Coating Composition Preparation Example 9, the SP value of the first component was 12.1, and the SP value of the second component was 10.0.

[0250] In Hard Coating Composition Preparation Example 10, the SP value of the first component was 12.1, and the SP value of the second component was 10.0.

preparation example 1~6

[0252] The components described in Table 2 below were mixed in the amounts described in Table 2 below to prepare coating composition preparation examples 1 to 6 for forming a protective layer.

[0253] [Production conditions of laminated film for molded decoration]

[0254] On a transparent polymer substrate with a thickness of 300μm (Mitsubishi Gas Chemicals Yumolon DF02U, a film with an acrylic resin layer on the polycarbonate layer), it will be prepared at the specified ratio corresponding to each example and comparative example The hard coating composition is applied by a bar coater to achieve a predetermined film thickness, and dried at 80° C.×1 minute, and irradiated with ultraviolet rays at a cumulative light amount of 200 mJ to produce a hard coating layer.

[0255] On the surface of the prepared hard coat layer opposite to the transparent polymer substrate, the coating composition for forming the protective layer prepared in the prescribed ratio corresponding to the respecti...

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Abstract

The present invention addresses the problem of providing a laminate film for a molded decoration, the laminate film having high hardness and abrasion resistance, exceptional long-term visibility-ensuring properties, and exceptional decorative properties, and furthermore being easily moldable and being capable of conforming to deformation without cracking during molding. The present invention provides a laminate film for molding / decoration, the laminate film being obtained by laminating a transparent polymer substrate, a 2-10-um-thick hard coat layer, and a 50-200-nm-thick protective layer in the stated order, wherein the laminate film for molding / decoration is characterized in that: the hard coat layer is a cured layer of a hard coating composition; the protective layer is a cured layer ofa protective-layer-forming coating composition; the laminate film for molding / decoration has an 15-80% degree of expansion; and after an abrasion test involving a load of 2N per 4 cm2 being passed back and forth for 200 cycles on the surface of the laminate film for molding / decoration, there was no scratching and no reduction in visibility caused by changes in external appearance.

Description

Technical field [0001] The present invention relates to a molded decorative laminate film, a decorative molded body manufactured from the molded decorative laminate film, and a decorative panel using the decorative molded body. Background technique [0002] There are automotive interiors that can be applied to AVC products such as TV monitors and computers, electronic device housings such as mobile phones, tablets and electronic logs, housings of various home appliances, control panels, central instrument clusters, and switch bases. Laminated film for decoration of products. [0003] In order to decorate the product, usually, the desired coating and / or printing are performed on the decorative laminate film. In addition, the decorative laminate film is molded into a complicated shape by, for example, in-mold molding or insert molding according to the shape of the applied product. [0004] For example, a decorative laminate film is formed into a desired shape after curing the film fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/00B32B27/30G06F3/041C08J7/043C08J7/046
CPCC08J7/042C08J2369/00C08J2333/08C08J2475/16C08J2433/06C08J7/043C08J7/046B44C3/04B44C5/0453C08J2333/04C08J2433/10C08J2433/14C08J2435/02C09D5/002C09D133/14C09D135/02
Inventor 小林和人北村昌弘中田侑助
Owner นิปปอน เพนท์ ออโตโมทีฟ โคทติ้งส์ โค แอลทีดี
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