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Resin composition and molded article thereof

A resin composition, resin-like technology, applied in other household appliances, applications, instruments, etc., can solve the problem of opacity of the resin composition

Inactive Publication Date: 2016-09-28
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a resin composition containing an aromatic polycarbonate resin and a methacrylic resin is opaque and cannot be used in applications requiring transparency.

Method used

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  • Resin composition and molded article thereof
  • Resin composition and molded article thereof
  • Resin composition and molded article thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0152] Hereinafter, although an Example and a comparative example are given and this invention is demonstrated concretely, this invention is not limited to these Examples.

[0153] In addition, various physical properties of the obtained resin composition and molded article were measured and evaluated by the following method.

[0154]

[0155] After drying the resin composition at 90°C for 12 hours, press molding at a pressing temperature of 220°C using a press molding machine ("SHINDO Type ASF Type Hydraulic Press" manufactured by Shindo Metal Industry Co., Ltd.) to obtain a thickness Formed sheet of 3mm. Next, the obtained molded pieces were press-molded at respective press temperatures of 270° C., 275° C., 280° C., 285° C., and 290° C. to obtain test pieces each having a thickness of 2 mm and a square of 40 mm. The appearance of each of the obtained test pieces was visually evaluated, and the highest pressing temperature was defined as the cloud point of the resin compos...

Synthetic example 1～12

[0158] (Synthesis examples 1 to 12: Synthesis of methacrylic resin)

[0159] Methyl methacrylate (MMA), cyclohexyl methacrylate (CHMA), and methyl acrylate (MA) were mixed according to the compositions shown in Table 1 to obtain monomer components. To this monomer component was added 0.2 parts by weight of lauroyl peroxide as a polymerization initiator relative to the sum of the monomer components, and 0.41 parts by weight of 1-decanoyl peroxide as a chain transfer agent relative to the total of the monomer components. Dialkylthiols to dissolve them. On the other hand, 0.05 parts by weight of sodium polyacrylate, 0.24 parts by weight of anhydrous sodium dihydrogen phosphate, and 0.28 parts by weight of disodium hydrogen phosphate heptahydrate were dissolved in 100 parts by weight of ion-exchanged water to form a suspension polymerization Aqueous phase Furthermore, 150 weight part of aqueous phases were added to 100 weight part of said monomer components, and suspension polyme...

Synthetic example 13～14

[0162] (Synthesis Examples 13-14: Synthesis of Methacrylic Resin)

[0163] CHMA was changed to phenyl methacrylate (PhMA), the amount of 1-dodecylmercaptan added was set to 0.30 parts by weight relative to the total monomer components, and MMA was set as shown in Table 2 , the composition of PhMA and MA, it carried out similarly to synthesis examples 1-12, and obtained the bead-shaped methacrylic resin.

[0164] [Table 2]

[0165]

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Abstract

Provided are a resin composition that makes it less likely that a molded article obtained therefrom will become cloudy even if the heating temperature in the molding process is a higher temperature, a resin film obtained by molding same, and a stretched film obtained by stretching the resin film. A resin composition containing a methacrylic resin and an aromatic polycarbonate resin, wherein: the methacrylic resin is obtained by polymerizing a monomer component containing 59-90 wt% of methyl methacrylate, 10-40 wt% of a (meth)acrylic acid ester shown by formula (I), and 0.4-0.8 wt% of alkyl acrylate relative to a total of 100 wt% of monomer components; the weight-average molecular weight of the aromatic polycarbonate resin is 20,000-40,000; and the methacrylic resin and aromatic polycarbonate resin content is 50-95 parts by weight of methacrylic resin and 5-50 parts by weight of aromatic polycarbonate resin relative to a total of 100 parts by weight of methacrylic resin and aromatic polycarbonate resin.

Description

technical field [0001] This patent application claims priority in the Paris Convention based on Japanese Patent Application No. 2014-21066, and the entire content thereof is incorporated herein by reference. [0002] The present invention relates to a resin composition containing a methacrylic resin and a polycarbonate resin. In addition, the present invention also relates to a molded article and a resin film obtained by molding the resin composition, and a stretched film obtained by stretching the resin film. In addition, the present invention also relates to a polarizer protective film comprising a resin film or a stretched film. Furthermore, the present invention also relates to a polarizing plate including a polarizer and a polarizer protective film. Background technique [0003] In general, aromatic polycarbonate resins are excellent in high-temperature stability, dimensional stability, impact resistance, rigidity, transparency, and the like. However, it also has dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12B29C55/02C08L69/00G02B5/30B29K33/04B29K69/00B29L7/00B29L11/00B29C48/00
CPCB29C55/02C08F220/14B29C45/00G02B1/14B29C48/00C08L33/12G02B1/12G02B5/3033C08F220/1806B29C48/08B29C45/0001C08L69/00G02B5/30C08J5/18C08J2333/12C08J2469/00
Inventor 大松一喜中原亮
Owner SUMITOMO CHEM CO LTD
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