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Aromatic polycarbonate resin composition and optical molded article

A polycarbonate resin, aromatic technology, applied in the field of optical molded products, can solve the problems of mechanical properties such as impact resistance decline, color deterioration caused by coloring, etc., and achieve the effect of excellent long-term heat resistance and long-term humidity and heat resistance.

Inactive Publication Date: 2020-04-10
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polycarbonate resins including aromatic polycarbonate resins have the problem that coloring occurs due to the influence of thermal degradation during molding / oxidative degradation when exposed to high temperatures for a long time, and the color tone is deteriorated. , and the problem that mechanical properties such as impact resistance decrease

Method used

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  • Aromatic polycarbonate resin composition and optical molded article
  • Aromatic polycarbonate resin composition and optical molded article
  • Aromatic polycarbonate resin composition and optical molded article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～25 and comparative example 1～12

[0189] After mixing the components in the proportions shown in Table 1 or Table 2, use a single-screw extruder with a screw diameter of 40 mm (manufactured by Tanabe Plastic Machinery Co., Ltd. "VS-40") with a vent at a temperature of 250 Melt-kneading was carried out at ℃, and pellets were obtained by strand cutting. After drying the obtained pellets at 110° C. for 5 hours, preparation of a molded body and various evaluations were performed by the following methods.

[0190] [Initial YI value of molded body]

[0191] The above-mentioned dried pellets were molded into 50 mm by injection molding machine ("ES1000" manufactured by Nissei Plastic Industry Co., Ltd.) under conditions of cylinder temperature 320°C, mold temperature 80°C, and cycle time 50 seconds. A flat test piece (molded article (1)) of ×90 mm×thickness 5 mm.

[0192] For the obtained test piece, the YI value was measured under the conditions of a C light source and a 2-degree field of view using a spectrophotom...

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Abstract

Provided is an aromatic polycarbonate resin composition containing 0.01-0.1 part by mass of an alicyclic epoxy compound (B), 0.2-0.6 part by mass of a polyether compound (C) having a polyoxyalkylene structure, and 0.005-1 part by mass of a phosphorus compound (D) per 100 parts by mass of an aromatic polycarbonate resin (A), wherein the difference between the YI value of a 5-mm-thick molded articleobtained by molding the aromatic polycarbonate resin composition at 320 DEG C after 3000 hours in an environment at 85 DEG C and 85% RH and an initial YI value is 3.0 or less.

Description

technical field [0001] The present invention relates to an aromatic polycarbonate resin composition and an optical molded article. Specifically, it relates to an aromatic polycarbonate resin combination useful for producing optical molded articles such as light guide plates, which contains an aromatic polycarbonate resin and is excellent in initial YI value during molding, long-term heat resistance, and long-term heat and humidity resistance Objects and optical moldings formed using them. Background technique [0002] Aromatic polycarbonate resins are excellent in transparency, mechanical properties, thermal properties, electrical properties, and weather resistance, and are used in optical molded products such as light guide plates, lenses, and optical fibers by utilizing their properties. However, polycarbonate resins including aromatic polycarbonate resins have the problem that coloring occurs due to the influence of thermal degradation during molding / oxidative degradatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K5/49C08L63/00C08L71/02G02B1/04
CPCG02B1/04G02B6/0065C08L69/00C08K5/1515C08K5/5317C08L71/02C08K5/524C08L63/00C08K5/526C08K5/103C08G64/04C08G65/34C08G64/045C08K5/053C08K5/52G02B1/045G02B6/0011C08K5/527C08K5/50
Inventor 山崎康宣鸟居孝洋河合直之
Owner IDEMITSU KOSAN CO LTD
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