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Resin composition for infrared ray-blocking transparent member, and molded article

A technology of resin composition and molded products, which can be applied to vehicle parts, transportation and packaging, windows, etc., can solve the problem of insufficient effect, invisible infrared shielding performance, heat and humidity resistance, and improved infrared shielding performance, heat and humidity resistance. and other issues to achieve high transparency and remarkable effects

Pending Publication Date: 2021-10-29
TEIJIN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent Document 2 discloses a technology for improving moisture and heat resistance by limiting the particle size of composite tungsten oxide particles, but the effect is not sufficient
In addition, Patent Document 3 discloses the technology of improving the thermal stability of the resin by blending fatty acid esters, but the effect of improving the heat and humidity resistance of the infrared shielding performance is not seen.
In addition, Patent Document 4 discloses the technique of suppressing the hydrolysis of the resin by blending epoxy resin into the transparent resin, but the effect of improving the heat and humidity resistance of the infrared shielding performance is not seen.

Method used

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  • Resin composition for infrared ray-blocking transparent member, and molded article
  • Resin composition for infrared ray-blocking transparent member, and molded article
  • Resin composition for infrared ray-blocking transparent member, and molded article

Examples

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Embodiment

[0099] Hereinafter, an Example is given and this invention is demonstrated further concretely. In addition, unless otherwise specified below, "part" means "weight part", and % means "weight%".

[0100] (1) Preparation of resin composition

[0101] (1-1) Raw materials used

[0102] (A component)

[0103] A-1: Polycarbonate resin powder with a molecular weight of 24200 obtained by the following production method

[0104] In the reaction vessel with baffles, a three-stage six-blade stirrer and a reflux cooling pipe are installed. 45.6 parts of bisphenol A, 2.78 mol% p-tert-butylphenol relative to bisphenol A, 265 parts of dichloromethane and 200 parts of water were added to the reaction vessel, and nitrogen purging was carried out to remove the oxygen in the reaction vessel. remove. It should be noted that the content of the reaction vessel in the above stage is less than 80% of the capacity of the vessel. Next, about 80 parts of an aqueous solution for supplying 0.09 parts...

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Abstract

The present invention provides a resin composition having infrared ray-blocking capability and excellent moist heat resistance while maintaining high transparency. This resin composition is characterized by containing, with respect to (A) 100 parts by weight of a polycarbonate resin (component A), (B) 0.0001-0.2 parts by weight of composite tungsten oxide fine-particles (component B) represented by general formula MxWyOz (wherein, M represents at least one element selected from H, He, alkali metals, alkaline earth metals, rare-earth elements, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi, and I, W represents tungsten, O represents oxygen, and 0.001<=x / y<=1 and 2.2<=z / y<=3.0 are satisfied), (C) 0.0001-0.1 parts by weight of an epoxy resin (component C), and (D) 0.001-0.5 parts by weight of a mold releasing agent (component D) which is a fatty acid ester in which the main component is a full ester formed of a fatty acid and a polyhydric alcohol.

Description

technical field [0001] The present invention relates to a polycarbonate resin composition containing composite tungsten oxide fine particles, which is an inorganic material having infrared absorption performance, and a molded article composed of the polycarbonate resin composition. Background technique [0002] Transparent materials with infrared shielding performance have the effect of suppressing the rise in indoor temperature and the rise in human body temperature, and are expected to reduce environmental loads when used in window members for automobiles and building materials. In particular, by imparting infrared shielding properties to transparent resins, it is possible to suppress CO from the viewpoint of weight reduction and heat management. 2 The effect of reducing environmental load such as discharge amount is large. As a method for expressing infrared shielding performance, Patent Document 1 discloses a technique of imparting composite tungsten oxide fine particle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00B60J1/00C08J5/18C08K3/22C08K5/103C08L63/00
CPCC08L69/00C08L63/00C08K2003/2258C08K5/103C08K3/22C08J7/046C08J5/18C08J2369/00C08K5/3475C08K5/3492C08K5/357C08K2201/003
Inventor 大西庸介伊藤彰香
Owner TEIJIN LTD
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