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Resin composition for optical film containing trapezoidal silsesquioxane polymer

A resin composition, silsesquioxane technology, applied in optics, optical components, instruments, etc., to achieve the effects of excellent light transmittance, improved physical properties, and excellent plasticizing effect

Active Publication Date: 2018-08-14
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, despite these series of efforts, the compatibility limitations and the exfoliation phenomenon of molecular unit addition components have only been partially improved, but not yet completely overcome.

Method used

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  • Resin composition for optical film containing trapezoidal silsesquioxane polymer
  • Resin composition for optical film containing trapezoidal silsesquioxane polymer
  • Resin composition for optical film containing trapezoidal silsesquioxane polymer

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0058] Synthesis Example 1: Preparation of cellulose solution

[0059] After 1 part by weight of triacetyl cellulose (Sigma-Aldrich, Fluka) was dropped into 9 parts by weight of mixed solvent in which dichloromethane and methanol were mixed at 9:1 (weight ratio), and mixed for more than 1 day , A cellulose solution was prepared.

Synthetic example 2

[0060] Synthesis Example 2: Preparation of Silsesquioxane Polymer

[0061] In a dry flask equipped with a cooling tube and a stirrer, 15% by weight of distilled water, 4% by weight of methanol (purity 99.86%), and 1% by weight of tetramethylammonium hydroxide (25% aqueous solution (in water)) were mixed beforehand. After preparing the mixed reaction solvent containing the catalyst, 80% by weight of the silane monomer was added to the prepared mixed reaction solvent. At this time, the mixing ratio of the added silane monomers is trimethoxyphenylsilane (Dow Corning, trade name DOWCORNING(R)Z-6124SILANE) 10 mol%: γ-methacryloxypropyl trimethoxy Silane (Dow Corning, trade name DOWCORNING (R) Z-6030SILANE) 90 mol%.

[0062] Thereafter, after slowly stirring for 8 hours in a nitrogen atmosphere, the stirring of the reaction solution was stopped, and after being left at room temperature for 24 hours, the reaction solution containing the precipitate was subjected to vacuum filtration to s...

Embodiment 1 to 5

[0067] Examples 1 to 5: Preparation of mixed solution of cellulose / silsesquioxane resin composition, and film production using solution casting method

[0068] 1 part by weight of the cellulose solution prepared in the above synthesis example 1 was mixed with 0.2, 0.4, 0.6, 0.8, and 1 part by weight, respectively, of the silsesquioxane polymer prepared in the above synthesis example 2 to prepare Resin composition prepared by solution casting. The prepared composition was cast on a glass plate at a speed of 20 cm / sec and dried with hot air to prepare a film.

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Abstract

The present invention relates to a resin composition containing a ladder-like silsesquioxane polymer for an optical film, particularly to a resin composition with superb heat resistance, ultra-violet light blocking and plasticizing effects, and such others by having a silsesquioxane polymer, with a ladder-like structure and exhibiting a high degree of compatibility with cellulose resin, contained therein, thus rendering the resin composition useful in the production of optical films, such as protective films for polarizing plates and compensation films.

Description

Technical field [0001] The present invention relates to a resin composition for an optical film containing a ladder-shaped silsesquioxane polymer, and more specifically, to a resin composition and an optical film using the resin composition And optical instruments, the resin composition contains a silsesquioxane polymer having a ladder structure showing high compatibility with cellulose-based resins, and thus has heat resistance characteristics, ultraviolet blocking effect, water resistance, and enhanced The plastic effect is excellent, so it can be effectively used for the production of optical films such as protective films for polarizers and compensation films. Background technique [0002] Generally speaking, cellulose-based films have excellent transparency and can easily produce films with low refractive index anisotropy. Therefore, they are widely used for optical applications such as protective films for polarizing plates. In particular, not only the contrast ratio (C / R)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L1/02C08G77/04G02B1/04G02B5/30
CPCC08J5/18C08L1/12C08L83/04G02B1/04G02B5/30
Inventor 崔胜晳俞载元南东镇金斗植朴景珉
Owner DONGJIN SEMICHEM CO LTD
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