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Additive for optical resins, and optical resin composition

A technology for optical resins and additives, applied in the field of additives for optical resins and optical resin compositions, which can solve the problems of impossibility, plastic deformation of fine resin particles, and poor surface luminescence, etc., to reduce light loss, achieve productivity, and improve optical performance. and the effect of physical properties

Active Publication Date: 2006-06-07
NIPPON SHOKUBAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because of the internal destruction and plastic deformation of the above-mentioned fine resin particles themselves, it is impossible to obtain an appropriate refractive index originally possessed, making the surface luminescence poor

Method used

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  • Additive for optical resins, and optical resin composition
  • Additive for optical resins, and optical resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-

[0132] (Preparation of additives (additive particles) for optical resins):

[0133] A mixed solution of 650 parts of ion-exchanged water, 2.6 parts of 25% ammonia water, and 322 parts of methanol was put into a flask equipped with a condenser, a thermometer and a drop inlet. While stirring the mixed solution, 24 parts of γ-methacryloxypropyltrimethoxysilane was added to the mixed solution from the drip inlet to initiate a reaction, and then stirring was continued for 2 hours. Separately, a material was emulsified and dispersed with a homomixer for 15 minutes to prepare an emulsion by mixing 4.8 parts of anionic surfactant (N-08, produced by Dai-ichi Kogyo Seiyaku Co., Ltd.) and 240 parts of ionic Exchange water was added to a mixed solution prepared by adding 480 parts of styrene and 10.1 parts of 2,2'-azobis(2,4-dimethylvaleronitrile) (V-65, produced by Wako Pure Chemical Industries, Ltd.). . This emulsion was added from the drip inlet 2 hours after the start of the above r...

Embodiment 2-

[0143] A mixed solution of 650 parts of ion-exchanged water and 2.6 parts of 25% ammonia water was put into a flask equipped with a condenser, a thermometer and a drip inlet. While stirring the mixed solution, add 50 parts of γ-methacryloxypropyltrimethoxysilane and a solution (the solution is dissolved in 322 parts of methanol by 10.1 2,2'-Azobis(2,4-dimethylvaleronitrile) (V-65, produced by Wako Pure Chemical Industries, Ltd.) was added to initiate the reaction, and stirring was continued for 2 hours. The resulting reaction liquid was heated to 65°C under a nitrogen atmosphere, and then kept at 65±2°C for 2 hours to perform a radical polymerization reaction. After the polymerization, the emulsion is obtained by spontaneous solid-liquid separation by settling. The obtained filter cake was washed with ion-exchanged water and methanol, and then vacuum-dried at 100° C. for 5 hours to obtain a dry material obtained by bonding particles. The dried material was crushed with a lab...

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Abstract

The present invention discloses an additive for optical resins, in which, even in consideration of optical use, the additive hardly comes off from, for example, an adhesive resin layer or a resin base material, and can realize uniform light diffusivity without brightness unevenness, And high surface shines. The present invention also discloses an optical resin composition comprising the above-mentioned additive and a transparent resin, and which can exhibit very excellent performance in terms of optical properties such as no brightness unevenness and surface emission in the case of being used for optical applications. The additive for optical resins is characterized by comprising organic-inorganic composite particles having a structure including an organic polymer skeleton and a polysiloxane skeleton as basic skeletons. The optical resin composition is characterized by comprising the above-mentioned additive for optical resins of the present invention and a transparent resin.

Description

technical field [0001] The present invention relates to an additive for optical resins and an optical resin composition. More specifically, the present invention relates to additives for optical resins used in, for example, light-diffusing sheets and light-guiding plates; and optical resin compositions containing the additives. Background technique [0002] Many attempts have been made so far to improve the performance or practicality of, for example, resins or resin compositions used for various purposes by adding fine particles thereto. The same is true for optical resins used as materials for optical applications such as LCDs, PDPs, EL displays, and touch screens. For example, regarding optical resin sheets such as light-diffusing sheets, those obtained by coating the surface of a predetermined base material with a resin composition obtained by incorporating fine inorganic particles such as titanium dioxide, glass beads, and silica ) or fine resin particles (made of, fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08F283/12C08G77/442C08J3/12C08L57/06C08L101/00
CPCC08G77/04C08G77/442C08L83/04C08L83/10C08L101/00C08L2666/02C08L83/00C08L2201/10
Inventor 佐佐木令晋安道信行平内达史池田勇人仓本成史
Owner NIPPON SHOKUBAI CO LTD
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