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Resin composition, and molded article and film thereof

A technology of resin composition and mixture, applied in synthetic resin layered products, chemical instruments and methods, layered products, etc., can solve problems such as poor impact resistance

Active Publication Date: 2018-11-23
KANEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, as an essential disadvantage of acrylic resins, poor impact resistance can be cited.

Method used

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  • Resin composition, and molded article and film thereof
  • Resin composition, and molded article and film thereof
  • Resin composition, and molded article and film thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、2

[0294] Regarding Examples 1 and 2 and Comparative Examples 1 and 2, the deflection temperature under load was measured under a load of 0.45 MPa based on ASTM D648. Regarding Examples 3 to 5 and Comparative Examples 3 to 9, the deflection temperature under load was measured under a load of 1.82 MPa based on ASTM D648.

[0295] (glass transition temperature)

[0296] Using a differential scanning calorimetry (DSC) SSC-5200 manufactured by Seiko Instruments, the sample was temporarily heated to 200°C at a rate of 25°C / min, then held for 10 minutes, and then the temperature was raised at a rate of 25°C / min. After the pre-adjustment down to 50°C, the measurement is carried out while the temperature is raised to 200°C at a rate of 10°C / min. The integral value (DDSC) is obtained from the obtained DSC curve, and the vitrification is obtained from the maximum point. transition temperature.

[0297] (imidization rate)

[0298] Calculation of the imidation rate was performed using IR ...

manufacture example 1

[0321]

[0322] The following substances were put into an 8L polymerization apparatus equipped with a stirrer.

[0323]

[0324] After fully replacing the inside of the polymerizer with nitrogen, the internal temperature was adjusted to 80° C., 0.03 parts of potassium persulfate was added as a 2% aqueous solution, and (I) shown in Table 1 was continuously added over 81 minutes. The polymerization was further continued for 60 minutes to obtain the polymer of (I). The polymerization conversion rate was 98.3%.

[0325] Thereafter, 0.03 part of sodium hydroxide was added as a 2% aqueous solution, 0.08 part of potassium persulfate was added as a 2% aqueous solution, and (II) shown in Table 1 was continuously added over 150 minutes. After completion of the addition, 0.02 part of pure potassium persulfate was added as a 2% aqueous solution, and polymerization was continued for 120 minutes to obtain a polymer of (II). The polymerization conversion rate was 98.1%, and the averag...

manufacture example 2

[0328]

[0329] The following substances were put into an 8L polymerization apparatus equipped with a stirrer.

[0330]

[0331] After fully replacing the inside of the polymerizer with nitrogen, the internal temperature was adjusted to 80° C., 0.03 parts of potassium persulfate was added as a 2% aqueous solution, and (I) shown in Table 1 was continuously added over 81 minutes. The polymerization was further continued for 60 minutes to obtain the polymer of (I). The polymerization conversion rate was 98.6%.

[0332] Thereafter, 0.03 part of sodium hydroxide was added as a 2% aqueous solution, 0.08 part of potassium persulfate was added as a 2% aqueous solution, and (II) shown in Table 1 was continuously added over 150 minutes. After completion of the addition, 0.02 part of pure potassium persulfate was added as a 2% aqueous solution, and polymerization was continued for 120 minutes to obtain a polymer of (II). The polymerization conversion rate was 99.3%, and the averag...

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Abstract

Provided is an acrylic resin composition capable of yielding a molded article or film having exceptional mechanical characteristics such as impact resistance and bending resistance, exceptional transparency or color tone, and suppressed retardation. In a resin composition including an acrylic resin and a graft copolymer, the graft copolymer includes the following inner layer and outer layer. Innerlayer: soft polymer (B) having, as structural units: a monomer mixture (b) comprising 40-99% by weight of an acrylic acid alkyl ester, 1-60% by weight of benzyl (meth)acrylate, and 0-40% by weight ofother monomers; and 0.1-5 parts by weight of polyfunctional monomers. Outer layer: hard polymer (C) having, as structural units: a monomer mixture (c) comprising 60-100% by weight of a methacrylic acid alkyl ester, 0-10% by weight of benzyl (meth)acrylate, and 40-0% by weight of other monomers; and 0-10 parts by weight of polyfunctional monomers.

Description

technical field [0001] The present invention relates to a resin composition containing an acrylic resin and a graft copolymer, a molded article thereof, and a film. Background technique [0002] Acrylic resins are excellent polymers that are widely used in various fields of industry because of their excellent transparency, color tone, appearance, weather resistance, gloss, and processability. In particular, films molded from acrylic resin exhibit excellent transparency, appearance, and weather resistance, and are used in interior and exterior materials of automobiles, exterior materials of electrified products such as mobile phones and smartphones, and building flooring materials, etc. Various uses such as interior and exterior materials for building materials. Among them, in recent years, acrylic resins exhibit excellent optical characteristics and are used for optical components such as liquid crystal display devices and organic EL display devices. [0003] However, as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08L51/00B32B27/30C08F265/06C08J5/18
CPCB32B27/30C08F265/06C08L33/04C08L51/00C08J5/18C08F220/14C08F8/48C08L33/12C08L33/24C08F220/1804C08F8/32C08F120/14C08L51/003C08F220/40C08F220/1807C08F212/08C08F222/40C08F220/18B32B27/308B32B7/022C08F8/30C08J2333/14C08J2451/06
Inventor 北山史延小山治规上田博纪安达永容
Owner KANEKA CORP
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