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Light-diffusible resin composition

A resin composition, light diffusivity technology, applied in optics, optical components, lighting and heating equipment, etc., can solve the problem of no light diffusivity and so on

Active Publication Date: 2014-12-10
TEIJIN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no study on light diffusivity in Patent Document 6

Method used

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  • Light-diffusible resin composition
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  • Light-diffusible resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～16 and comparative example 1～5

[0225] Components A to C and various additives were mixed with a mixer in the amounts described in Table 1 and Table 2, and then melted and kneaded using a vented twin-screw extruder to obtain pellets. Various additives to be used are prepared in advance as a premix with polycarbonate based on the concentration of 10 to 100 times the compounding amount, and then the whole is mixed with a mixer. As a vented twin-screw extruder, the Nippon Steel Works Co., Ltd. product: TEX30α (completely meshing, rotating in the same direction, 2 screws) was used. The extrusion conditions are discharge rate 20kg / h, screw rotation speed 150rpm, vacuum degree of the exhaust port 3kPa, and the extrusion temperature is set to 270°C from the first supply port to the second supply port, and the second supply port to the die head Some are 290°C.

[0226] The results are shown in Table 1 and Table 2. In Examples 1 to 13 and 15, since the average size of domains in the polycarbonate matrix of componen...

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Abstract

A resin composition having excellent light diffusion property and hue and a molded article thereof. The light-diffusing resin composition comprises 100 parts by weight of a resin component containing a polycarbonate (component A) and a polycarbonate-polydiorganosiloxane copolymer (component B) and 0.05 to 10.0 parts by weight of a light diffusing agent (component C), wherein the component B is a polycarbonate-polydiorganosiloxane copolymer in which polydiorganosiloxane domains having an average size of 0.5 to 40 nm are existent in a polycarbonate matrix.

Description

technical field [0001] This invention relates to a light diffusing resin composition. More specifically, it relates to a light-diffusing resin composition that can be suitably used for a cover for lighting excellent in light diffusibility, thermal stability, and color tone, a diffuser plate for a display, an application replacing glass, and the like. Background technique [0002] Conventionally, it has been dispersed in transparent resins such as aromatic polycarbonate resins, acrylic resins, and styrene resins in applications that require light diffusing properties such as various lighting covers, displays, automotive meters, and various signs. Organic and inorganic light-diffusing agent materials are widely used. Among such transparent resins, aromatic polycarbonate resins are not only excellent in mechanical properties, heat resistance, and weather resistance, but also widely used as resins having high light transmittance. [0003] Moreover, as a light-diffusion agent, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08G64/08C08L101/00F21V3/00F21V3/04G02B5/02
CPCC08L101/00C08L69/00C08G64/08F21V3/04G02B5/0268G02B5/0278C08L2201/10C08L2205/22C08G77/448C08L83/10F21V3/062C08L101/12
Inventor 三宅利往品川明日香
Owner TEIJIN LTD