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Composition for cleaning photodegradable polyimide alignment film

A polyimide, photodegradable technology, applied in non-surface active detergent compositions, detergent compositions, organic non-surface active detergent compositions, etc. Does not cause swelling and other problems, and achieves the effect of improving cleaning performance and inhibiting swelling

Active Publication Date: 2016-09-28
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although the above-mentioned prior art can improve the anisotropy of the liquid crystal alignment film obtained by the photo-alignment method, and suppress the unevenness generated in the process, the presence of the solvent in the past cannot satisfy the cleaning and photo-alignment polyimides at the same time. The problem of swelling characteristics

Method used

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  • Composition for cleaning photodegradable polyimide alignment film
  • Composition for cleaning photodegradable polyimide alignment film
  • Composition for cleaning photodegradable polyimide alignment film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 2 and comparative example 1 to 7

[0055] The solvent of the composition for cleaning a photodecomposable polyimide alignment film of the present invention may be represented by the following chemical formulas 2 to 10.

[0056] [chemical formula 2]

[0057]

[0058] [chemical formula 3]

[0059]

[0060] [chemical formula 4]

[0061]

[0062] [chemical formula 5]

[0063]

[0064] [chemical formula 6]

[0065]

[0066] [chemical formula 7]

[0067]

[0068] [chemical formula 8]

[0069]

[0070] [chemical formula 9]

[0071]

[0072] [chemical formula 10]

[0073]

[0074] (1) Cleaning evaluation

[0075] With regard to cleanability, a solution obtained by diluting the compound of the following chemical formula 11 in NMP at a concentration of 10% is applied in such a way that the thickness after drying is 5 μm, and after drying at 100° C. for 10 minutes, in a corresponding solvent at room temperature After dipping for 10 minutes, the residue of the following chemical formula 1...

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Abstract

The invention provides a composition for cleaning a photodegradable polyimide alignment film. Specifically, the composition can satisfy cleaning property and swelling rejection capability through a solvent in a specific structure. The invention provides a composition for cleaning a photodegradable polyimide alignment film. The composition contains a butyl-hydroxylic solvent represented by the following chemical formula. In the chemical formula, R1 is alphatic hydrocarbon with 1-6 carbon number.

Description

technical field [0001] The present invention relates to a photodecomposable polyimide alignment film cleaning composition capable of obtaining a photoaligned polyimide. Background technique [0002] About the liquid crystal display element used for a liquid crystal television, a liquid crystal display, etc., the liquid crystal aligning film for controlling the alignment state of a liquid crystal is formed in an element normally. [0003] At present, the most popular liquid crystal alignment film in the industry is formed on the surface of the film containing polyamic acid and / or its imidized polyimide formed on the electrode substrate with cotton, nylon, polyester, etc. Manufactured by so-called rubbing treatment where the cloth is wiped in one direction. [0004] Rubbing the surface of a film during the orientation process of a liquid crystal aligning film is an industrially useful method which is simple and excellent in productivity. However, due to the increasing demand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D7/50C11D7/26C11D7/32
CPCC11D7/266C11D7/3263C11D7/3281C11D7/5022C11D2111/22C08G73/10
Inventor 崔汉永金圣植金炳默
Owner DONGWOO FINE CHEM CO LTD
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