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Multilayer sheet for molding which is highly glossy even after a molding process, and method for preparing same

A technology for laminating sheets and resin layers, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve problems such as loss of gloss, and achieve the effect of reducing the degree of gloss change

Inactive Publication Date: 2013-01-16
LG HAUSYS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this laminated sheet has a problem of losing its luster during the thermoforming process

Method used

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  • Multilayer sheet for molding which is highly glossy even after a molding process, and method for preparing same

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preparation example Construction

[0012] Moreover, the present invention provides a method for preparing a laminated sheet for molding, the preparation method comprising the following steps: a first step, coating a thermosetting resin composition on a carrier film to prepare a first resin layer; coating the thermoplastic resin composition on the first resin layer prepared in the step to prepare the second resin layer; and the third step, forming a decoration layer on the second resin layer prepared in the second step.

[0013] Moreover, the present invention provides a method for preparing a laminated sheet for molding, the preparation method comprising the following steps: a first step, coating a thermosetting resin composition on a carrier film to prepare a first resin layer; The first resin layer prepared in the step is coated with a thermoplastic resin composition to prepare the second resin layer; the third step is to form a decorative layer on the second resin layer prepared in the second step; and the fo...

Embodiment 1

[0021] On a polyethylene terephthalate (PET, glycomodified polyethylene terephthalate) film with a thickness of 25 μm to 150 μm, it is coated with 100 parts by weight of acrylic resin, 10 parts by weight of isocyanate curing agent, 100 parts by weight of formaldehyde A thermosetting resin composition formed of ethyl ethyl ketone, 60 parts by weight of toluene, 180 parts by weight of methyl isobutyl ketone, and 60 parts by weight of a mixed solvent formed from ethyl acetate to form a first transparent resin with a thickness of 10 μm Floor. Ethylene glycol-modified polyethylene terephthalate (PET, glycomodified polyethylene terephthalate) was coated on the first transparent resin layer to form a thermoplastic second transparent resin layer with a thickness of 150 μm. Then, after printing a desired pattern on the above-mentioned second transparent resin layer by gravure printing, the above-mentioned first transparent resin layer, second The transparent resin layer and the printi...

Embodiment 2

[0023] Coating ethylene glycol-modified polyethylene terephthalate (PET, glycomodified polyethylene terephthalate) resin on a polyethylene terephthalate (PET) film with a thickness of 25 μm to 150 μm to form a thickness of 10 μm thermoplastic transparent resin layer. On the above-mentioned first transparent resin layer, the acrylic resin of 100 parts by weight, the isocyanate curing agent of 10 parts by weight, the methyl ethyl ketone of 100 parts by weight, the toluene of 60 parts by weight, the methylisobutylate of 180 parts by weight A thermosetting resin composition formed of base ketone and 60 parts by weight of a mixed solvent formed of ethyl acetate was applied as a coating layer to form a thermosetting second transparent resin layer with a thickness of 150 μm. Then, after printing a desired pattern on the above-mentioned second transparent resin layer by gravure printing, the above-mentioned first transparent resin layer, second The transparent resin layer and the pri...

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Abstract

The present invention relates to a multilayer sheet for insert molding, in which a first thermosetting transparent resin layer maintains the effects of protecting the surface of the sheet, and a second thermoplastic transparent resin layer maintains moldability. The multilayer sheet of the present invention reduces the variation in the gloss at the surface layer thereof caused by changes in the microstructure of the surface of a base sheet, which might occur during molding, and has excellent resistance against scratches and abrasion.

Description

technical field [0001] The present invention relates to a laminated sheet for insert molding. Background technique [0002] Laminate sheets for insert molding are widely used in interior decoration, building materials, and the like. However, such a laminated sheet has a problem of loss of luster during the thermoforming process. Accordingly, the present inventors completed the present invention while studying a laminated sheet that maintains high gloss even in a high-temperature thermoforming process, has high hardness, and excellent chemical resistance, scratch resistance, and abrasion resistance. Invention of the laminated sheet and its preparation method. Contents of the invention [0003] technical problem [0004] An object of the present invention is to provide a laminated sheet for molding capable of maintaining high gloss even in a high-temperature thermoforming process, and a method for producing the laminated sheet. [0005] means of solving problems [0006...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B27/08
CPCB32B2307/536B32B2250/24B32B2307/412B32B2307/406B32B2307/584B32B27/08Y10T428/269Y10T428/31573Y10T428/31797Y10T428/31909
Inventor 金炯坤金东坤李珉镐金起政
Owner LG HAUSYS LTD
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