Acrylic laminate film, method for producing same, and deco sheet produced therefrom

A technology of laminating film and acrylic, applied in the field of acrylic laminating film and decorative sheet, it can solve the problems such as the limitation of increase in transmittance and smoothness of the film, and it is difficult to completely remove the whitening phenomenon, so as to achieve the improvement of optical properties and surface smoothness , The effect of preventing whitening and excellent softness

Active Publication Date: 2021-08-06
LG MMA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Said patent is obtained by mixing acrylic thermoplastic resin and acrylic particles, but it is difficult to completely remove the whitening phenomenon by the process of mixing acrylic thermoplastic resin and acrylic particles
Also, the increase in transmittance and smoothness of the film is also limited

Method used

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  • Acrylic laminate film, method for producing same, and deco sheet produced therefrom
  • Acrylic laminate film, method for producing same, and deco sheet produced therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] In order to form the inner layer by step 1, 250g of ion-exchanged water, 0.002g of ferrous sulfate, 0.008g of disodium ethylenediaminetetraacetic acid, 0.2g of sodium formaldehyde sulfoxylate and 2g of lauryl sulfate Sodium was added into a 5L reactor with a stirrer, and after replacing with nitrogen, the temperature was raised to 65°C.

[0107] After heating up, butyl acrylate of 35g, styrene of 5g, allyl methacrylate as grafting agent of 0.3g, 1,3-butanediol dimethacrylate as crosslinking agent of 1g, 0.2 g of sodium polyoxyethylene alkyl ether phosphate as an emulsifier, and 0.5 g of cumene hydroperoxide as an initiator were mixed and added dropwise over 2 hours. Stir at 200 rpm for 1 hour to carry out emulsion polymerization. The average particle size of the primary particle resin obtained at this time was 73 nm.

[0108] In order to form the intermediate layer through step 2, the primary granular resin and 0.1 g of sodium formaldehyde sulfoxylate were sequentiall...

Embodiment 2

[0113] The average size of the primary particle resin in the described embodiment 1 is prepared to be 171nm, the average size of the secondary particle resin is prepared to be 222nm, and the average particle size of the final acrylic copolymer resin is prepared to be 262nm. Proceed in the same manner as Example 1.

Embodiment 3

[0115] The average size of the primary particle resin in the described embodiment 1 is prepared to be 45nm, the average size of the secondary particle resin is prepared to be 140nm, and the average particle size of the final acrylic copolymer resin is prepared to be 239nm. Proceed in the same manner as Example 1.

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Abstract

The present invention pertains to: an acrylic laminate film containing an acrylic copolymer resin and having a three-layer structure of an inner layer, an intermediate layer, and an outer layer; a method for producing same; and a deco sheet produced therefrom. An object of the present invention is to provide a three-layer-structured acrylic laminate film produced from an acrylic copolymer resin. Another object of the present invention is to provide: an acrylic laminate film having significantly improved optical properties and surface smoothness by using an acrylic copolymer resin alone without mixing the same with additional resins; and a method for producing the acrylic laminate film. Still another object of the present invention is to provide: an acrylic laminate film that exhibits significantly reduced whitening even when a flexural stress is applied; and a method for producing the acrylic laminate film.

Description

technical field [0001] The present invention relates to an acrylic laminated film, its preparation method and a decorative sheet prepared therefrom. Background technique [0002] Products produced using acrylic resin raw materials generally have excellent physical properties such as weather resistance, scratch resistance, high transparency, and light resistance, and have a strong balance between mechanical strength and moldability, so they are used as various main components. Materials are widely used in various fields such as the automotive industry, optical industry, and electrical and electronic industries. [0003] Acrylic resin has excellent transparency, weather resistance, and moldability, so it is widely used in various industries such as optical products and electronic product casings. In particular, it can be molded into a sheet or film, or laminated and applied to plastics, wood, metal, and the like. [0004] Films molded from this acrylic resin have high film-f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L51/00C08F285/00C08F220/18C08F265/06C08F2/22
CPCC08F285/00C08J5/18C08J3/126C08J2333/12C08J2433/08C08F220/1804C08F2/26C08F212/08C08F220/40C08F222/102C08F220/14C08L51/003C08F220/18C08F265/06C08F2/22C08L2207/53C08F2810/20C08J2451/00B32B27/08B32B27/308B32B2250/03B32B2250/24B32B2307/412B32B2307/584B32B2307/712B32B2333/08B32B2333/12B32B2451/00C08J2351/04
Inventor 丁耀澖李暎洙全殷珍
Owner LG MMA CORP
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