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Resin compositions and resin moldings

A technology of resin composition and polyester resin, applied in the field of resin composition and resin molded body, can solve the problems of reduced transparency, insufficient mechanical strength, reduced heat resistance, etc., and achieves good balance and stable retention of heat. Good properties and excellent hydrolysis resistance

Active Publication Date: 2008-09-10
MITSUBISHI RAYON CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, heat resistance decreases if the reaction is excessive
In addition, if the reaction is insufficient, there is a problem that the transparency is lowered and sufficient mechanical strength cannot be obtained.

Method used

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  • Resin compositions and resin moldings
  • Resin compositions and resin moldings
  • Resin compositions and resin moldings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0156] Hereinafter, although an Example demonstrates this invention in more detail, this invention is not limited to the following Example unless the summary is exceeded. The raw materials used in each of the following examples are as follows. In each of the following examples, the compounding amount refers to parts by weight.

[0157]

[0158] PC-1: bisphenol A type aromatic polycarbonate (manufactured by Mitsubishi Engineering Plastics (Engineering Plastics), "Iupilon (upilon) S-3000FN", viscosity average molecular weight 22500)

[0159] PC-2: bisphenol A type aromatic polycarbonate (manufactured by Mitsubishi Engineering Plastics, "Iupilon H-4000FN", viscosity average molecular weight 15500)

[0160] PC-3: bisphenol A type aromatic polycarbonate (manufactured by Mitsubishi Engineering Plastics, "Iupilon E-2000FN", viscosity average molecular weight 28000)

[0161]

[0162] PCC(A)-1: Alicyclic polyester resin described in Production Example 1 below

[0163] Intrinsic ...

manufacture example 1

[0192] 101.5 parts by weight of 1,4-cyclohexanedicarboxylic acid (the ratio of trans body:cis body is 96:4), 87.0 parts by weight of 1,4-cyclohexanedimethanol (trans body:cis body The ratio of 69:31) and 0.005 parts by weight of tetra-n-butyl titanate in 6% by weight butanol solution is charged into a capacity of 100 liters with agitator, distillation pipe, heating device, pressure gauge, thermometer and decompression device In a stainless steel reactor, the inside of the reactor was replaced with nitrogen. While sealing the inside of the reactor with nitrogen gas, the internal temperature was raised to 150° C. over 30 minutes, and then from 150° C. to 200° C. over 1 hour. Next, after maintaining at 200° C. for 1 hour to carry out esterification reaction, the temperature was raised from 200° C. to 250° C. over 45 minutes, and polycondensation reaction was carried out while gradually reducing the pressure in the reactor. Keep the pressure inside the reactor at an absolute pres...

manufacture example 2

[0194] Production Example 1 was carried out in the same manner as Production Example 1, except that the charged amount of 1,4-cyclohexanedimethanol was changed to 87.9 parts by weight, and the polycondensation reaction time was changed from 3.7 hours to 4.5 hours. The intrinsic viscosity and terminal carboxylic acid concentration were 0.841 dl / g and 2.7 equivalent / ton, respectively, YI (granule) = 13.8, and the melting point was 219.6°C.

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Abstract

The invention provides a resin composition (I) which little discolors and is excellent in transparency, resistance to hydrolysis, and chemical resistance; and a resin composition (II) which is excellent in transparency, hue, fluidity, impact resistance, resistance to moist heat, and thermal stability in residence and is well balanced among these characteristics. Namely, a resin composition (I) which comprises 100 parts by weight of a resin component comprising 1 to 99 parts by weight of an aromatic polycarbonate resin (A) and 1 to 99 parts by weight of an alicyclic polyester resin (B) and 0.001 to 5 parts by weight of a specific organophosphoric ester metal salt (C); and a resin composition (II) which comprises 100 parts by weight of a resin component comprising 1 to 99 parts by weight of an aromatic polycarbonate resin (A) and 1 to 99 parts by weight of an alicyclic polyester resin (B), 0.001 to 5 parts by weight of a specific organophosphoric ester metal salt (C), and 0.001 to 1 part by weight of a specific phosphorus compound (D).

Description

technical field [0001] The present invention relates to a resin composition and a resin molded article. Specifically, it relates to a resin composition and a resin molded article containing an aromatic polycarbonate and an alicyclic polyester resin. Background technique [0002] Aromatic polycarbonate is a resin with excellent mechanical strength such as transparency, heat resistance, impact strength, and dimensional stability, so it is widely used in building materials, electrical and electronic components such as chassis and gears of OA equipment, and dialysis Medical devices such as dialyzers, etc. [0003] In general, aromatic polycarbonate resins have poor chemical resistance, so aromatic polycarbonate resins such as polybutylene terephthalate (PBT) or polyethylene terephthalate (PET) have been used. Attempts to improve chemical resistance by blending ester resins. Although these resins have a high affinity for each other, they are not compatible, and therefore studie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08K5/521
CPCC08K5/49C08K5/524C08K13/00C08L67/02C08L69/00C08L2666/18C08K5/521
Inventor 田中智彦笠井厚中村充中野博
Owner MITSUBISHI RAYON CO LTD