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Synthetic resin laminate

A technology for synthetic resins and laminates, applied in the fields of excellent thermoformability and insert formability, surface hardness and/or impact resistance, which can solve the problems of reduced toughness and flexibility, and achieve high flexibility Effect

Active Publication Date: 2015-06-17
MITSUBISHI GAS CHEM CO INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned multilayer sheet, a certain thickness of the acrylic resin layer is required to maintain the surface hardness. Therefore, the smaller the overall thickness of the sheet, the larger the ratio of the thickness of the acrylic layer to the overall thickness, and the greater the reduction in the above-mentioned toughness and flexibility. obvious
In addition, there is no description of a laminated resin sheet having a hard coat layer on the surface of an acrylic resin layer.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0119] Hereinafter, the present invention will be specifically described by way of examples. However, the present invention is not limited by these Examples in any way.

[0120] The measurement of the physical properties of the laminated resins obtained in the production examples and the evaluation of the synthetic resin laminates obtained in the examples and comparative examples were performed as follows.

[0121]

[0122] Based on the calibration curve obtained by dissolving standard polystyrene in chloroform and measuring by gel permeation chromatography (GPC), the acrylic resin and polycarbonate resin were similarly measured by GPC. The device configuration of the GPC is as follows.

[0123] Installation: Waters 2690

[0124] Column: Shodex GPC KF-805L 8Φ×300mm 2 joints

[0125] Developing solvent: chloroform

[0126] Flow rate: 1ml / min

[0127] Temperature: 30°C

[0128] Detector: UV…486nm polycarbonate, aromatic polyester

[0129] RI…special acrylic

[0130] ...

Synthetic example 1

[0142] Synthesis of 2,2-bis(4-hydroxy-3-methylphenyl)propane / 2,2-bis(4-hydroxyphenyl)propane=6 / 4 copolycarbonate

[0143] In 54.5L of 9.0w / w% sodium hydroxide aqueous solution, dissolve 2,2-bis(4-hydroxy-3-methylphenyl)propane (manufactured by Honshu Chemical Industry Co., Ltd.) 6174.7g (24.12mol), 4,086 g (17.98 mol) of 2,2-bis(4-hydroxyphenyl)propane (manufactured by Nippon Steel Chemical Co., Ltd.), 3.8 g of triethylbenzyl ammonium chloride, and 50.0 g of dithionite (Hydrosulfite).

[0144] 24 L of dichloromethane was added thereto and stirred, and 5,390 g of phosgene was blown in over 40 minutes while maintaining the temperature at 15°C.

[0145] After the blowing of phosgene was completed, 210 g of p-tert-butylphenol was added and stirred vigorously to emulsify the reaction solution. After emulsification, 110 ml of triethylamine was added and stirred at a temperature of 20 to 25° C. for about 1 hour to perform polymerization.

[0146]After the polymerization, the reactio...

manufacture example 1

[0147] Production example 1 [manufacture of resin (A11) pellets]

[0148] Metablen H-880 (manufactured by Mitsubishi Rayon Co., Ltd., weight-average molecular weight: 14000, a11 / a12=33 / 66) as a (meth)acrylate copolymer (a1) was added at 40% by mass and polycarbonate resin (a2) 60% by mass of Synthesis Example 1, mixed with a blender for 20 minutes, after that, using a twin-screw extruder with a screw diameter of 35 mm, melted and kneaded at a cylinder temperature of 260° C., extruded It is in the form of strands and is pelletized by a granulator. Pellets were produced stably. The measurement of the glass transition temperature of the high-hardness resin composition showed a single peak at 119° C., and it was confirmed that the resin composition was compatible.

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Abstract

The present invention addresses the problem of providing a synthetic resin laminate having excellent thermoformability (pressure forming, thermal bending molding) or insert moldability, as well as excellent surface hardness and / or impact resistance, the synthetic resin laminate being used as a transparent board material or protective material, and to provide a molded article obtained by molding the synthetic resin laminate. The synthetic resin laminate according to the present invention is obtained by laminating a specific (meth)acrylate copolymer resin and a specific polycarbonate resin on one or both sides of a polycarbonate-based substrate layer, and the polycarbonate-based substrate layer is polymer alloyed, thereby giving the substrate layer a glass transition temperature (Tg) of 110-130°C. A synthetic resin laminate having excellent thermoformability or surface hardness is thereby obtained.

Description

technical field [0001] The present invention relates to a synthetic resin laminate. Specifically, it relates to a substrate material and a protective material for transparency, which have a polycarbonate base layer and contain a specific (meth)acrylate copolymer resin and a specific polycarbonate. A resin layer (high hardness layer) of an ester resin, a synthetic resin laminate having excellent thermoformability (air pressure forming, thermobending forming) and insert moldability, and excellent surface hardness and / or impact resistance, and the synthetic resin A molded body obtained by molding a laminate. Background technique [0002] A decorative molded body obtained by integrating a decorative film with a design layer and a resin molded body is often used for casings of automobile interiors, home appliances, and small portable computers. By integrating the resin molded body and the decorative film from the design layer side of the decorative film, a molded body having a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B29C45/14B29C51/10B29C51/14B32B27/30B29K33/04B29K67/00B29K69/00B29L9/00C08L33/06C08L33/12C08L67/00C08L69/00
CPCB29C45/14B29C51/10B29C51/14B32B27/308B32B27/365C08L33/06C08L33/12C08L67/00C08L69/00B29K2033/04B32B27/36B29C45/14778B29K2995/0026B32B2250/24B32B2270/00B32B2307/71B32B2307/738B32B2457/00B32B2601/00B32B2605/003C08L67/02Y10T428/24802Y10T428/31507Y10T428/2495Y10T428/24967B32B27/08B29K2033/08B05D3/007B05D2201/04B32B2307/412B32B2307/536B32B2307/558
Inventor 大西猛史柿木修中安康善清水英贵相川浩彦
Owner MITSUBISHI GAS CHEM CO INC
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