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Transparent resin laminate

A laminated body and resin technology, applied in the direction of synthetic resin layered products, coatings, layered products, etc., can solve problems such as insufficient warpage and deformation resistance

Active Publication Date: 2018-10-23
MITSUBISHI GAS CHEM CO INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, even if sufficient warping deformation resistance can be obtained in a part of the transparent resin laminated body, the warping deformation resistance may not be sufficient for the transparent resin laminated body as a whole.

Method used

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  • Transparent resin laminate
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  • Transparent resin laminate

Examples

Experimental program
Comparison scheme
Effect test

manufacture example

[0040] Hereinafter, manufacturing examples, examples, etc., are illustrated to describe the present invention in detail. However, the present invention is not limited to the illustrated manufacturing examples, examples, etc., and can be modified as long as it does not significantly deviate from the content of the present invention. Any method to implement.

[0041] The present invention relates to a resin laminate characterized in that it is a resin obtained by laminating a thermoplastic resin (B) on at least one surface of a polycarbonate resin sheet (A) containing polycarbonate resin as a main component A laminate in which the thermoplastic resin (B) contains the copolymer (b1) and contains any one of the copolymer (b2) and the copolymer (b3), and the copolymer (b1) contains an aromatic vinyl monomer unit 45 ~85% by mass, 5-50% by mass of unsaturated dicarboxylic anhydride monomer units, and 5 to 35% by mass of acrylic compound monomer units. The copolymer (b2) contains 1-30% b...

Embodiment

[0113] Hereinafter, the present invention will be specifically explained through examples. However, the present invention is not limited in any way by these examples.

[0114] The physical property measurement of the laminated resin obtained in the manufacturing example and the evaluation of the synthetic resin laminated body obtained in the Example and the comparative example were performed as follows.

[0115]

[0116] A test piece of 10 cm in length and 6 cm in width was cut out from the vicinity of the center of the resin laminate. The test piece was set on a two-point support type holder, put into an environmental testing machine set at a temperature of 23° C. and a relative humidity of 50% for 24 hours or more, and after adjusting the state, the warpage was measured. Let the value at this time be the value of the amount of warpage before processing. Next, the test piece was set in a holder, put into an environmental testing machine set at a temperature of 85°C and a relativ...

manufacture example 1

[0127] Production Example 1 [Production of resin (B11) pellets]

[0128] Relative to R100 (b1-1) as copolymer (b1) (mass ratio of styrene:maleic anhydride:MMA=65:15:20, weight average molecular weight: 170,000) 75 parts by mass and as copolymer (b2) DELPET PM120N(b2-1) (mass ratio of styrene:N-phenylmaleimide:MMA=4:15:81, weight average molecular weight: 113,000) 25 parts by mass total 100 parts by mass, add 500ppm Phosphorus-based additive PEP-36 (manufactured by ADEKA Co., Ltd.) and 0.2% by mass of stearic acid monoglyceride (product name: H-100, manufactured by Riken VITAMIN Co., Ltd.), mixed with a blender for 20 minutes, and then screwed 26mm diameter twin-screw extruder (manufactured by Toshiba Instruments Co., Ltd., TEM-26SS, L / D≒40), melted and kneaded at a barrel temperature of 240°C, extruded into strands and pelletized using a pelletizer 化. The pellets were manufactured stably.

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Abstract

The present invention addresses the problem of providing a resin laminate which has excellent warping deformation resistance even under exposure to high temperature and high humidity, and in which theeffect of variation in surface-layer thickness on the resistance to warping deformation is small. This problem can be solved by a resin laminate characterized by being produced by layering a thermoplastic resin (B) on at least one surface of a polycarbonate-based resin (A) sheet of which the main component is a polycarbonate resin, the thermoplastic resin (B) containing: a copolymer (b1) comprising 45-85 mass% of an aromatic vinyl monomer unit, 5-50 mass% of an unsaturated dicarboxylic anhydride monomer unit, and 5-35 mass% of an acrylic compound monomer unit; and either a copolymer (b2) comprising 1-30 mass% of an aromatic vinyl monomer unit, 5-45 mass% of an N-substituted maleimide monomer unit, and 25-94 mass% of an acrylic compound monomer unit, or a copolymer (b3) comprising 5-40 mass% of an aromatic vinyl monomer unit, and 1-50 mass% of an unsaturated dicarboxylic anhydride monomer unit, and 45-94 mass% of an acrylic compound monomer unit.

Description

Technical field [0001] The present invention relates to a resin laminate for use in a transparent base material and protective material. The resin laminate has a polycarbonate resin layer and a thermoplastic resin layer containing at least two specific copolymers. The resin laminate Even when the layered body is exposed to high temperature and high humidity, the warpage resistance is excellent, and the influence of the uneven surface layer thickness on the warpage resistance is small. Background technique [0002] Acrylic resin has excellent surface hardness, transparency, scratch resistance, and weather resistance. On the other hand, polycarbonate resin is excellent in impact resistance and the like. Therefore, a laminate having an acrylic resin layer and a polycarbonate resin layer has excellent surface hardness, transparency, scratch resistance, weather resistance, and impact resistance, and is used for automotive parts, home appliances, electronic devices, and portable infor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36G06F3/041
CPCB32B27/36G06F3/041B32B27/08B32B27/16B32B27/18B32B27/30B32B27/302B32B27/365B32B2250/24B32B2255/10B32B2255/26B32B2270/00B32B2307/40B32B2307/7246B32B2307/732B32B2457/00B32B2457/208B32B2571/00B32B2307/412B32B2457/20B32B2307/21B32B2307/71
Inventor 平林正树
Owner MITSUBISHI GAS CHEM CO INC
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