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Quantitative analysis method for monomer of photoresist binder

A technique of quantitative analysis and binder, applied in the field of quantitative analysis of monomers

Pending Publication Date: 2019-11-15
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, NMR analysis has limitations because monomer components often become diverse and complex

Method used

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  • Quantitative analysis method for monomer of photoresist binder
  • Quantitative analysis method for monomer of photoresist binder
  • Quantitative analysis method for monomer of photoresist binder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] For PR adhesives containing benzyl methacrylate (BzMA), N-phenylmaleimide (N-PMI) and styrene monomers, in amounts of 0.5 mg, 1 mg, 1.5 mg and 2 mg Take 3 kinds of standard products and adhesive A samples, and then carry out the test after accurately weighing their weight to 0.1 mg unit. Using Py-GC / MS (pyrolyzer temperature: 600° C.), the area % of each monomer was measured, and the measured value was substituted into a calibration curve to normalize the value. The results are shown in Tables 9 and 10 below.

[0077] [Table 9]

[0078] Normalized results for monomers in binder A

[0079]

[0080] 1) Benzyl methacrylate, 2) N-phenylmaleimide

[0081] [Table 10]

[0082] The results of the addition ratio in adhesive A

[0083]

[0084] 1) Benzyl methacrylate, 2) N-phenylmaleimide

[0085] Based on the calibration curve showing the normalized area (%) relative to the addition ratio of monomer image 3 , Quantitative analysis was carried out on the 3 stand...

Embodiment 2

[0090] Embodiment 2 utilizes Py-GC / MS, NMR and NMR+EA method to carry out the result of quantitative analysis A total of 6 samples of linear adhesives and reactive adhesives were quantitatively analyzed in this example and the results of each analysis method are shown in Table 12 below. For binders C, D and F, it can be confirmed that the NMR method provides smaller errors than the Py-GC / MS method. For Adhesives A, B and E, it can be confirmed that the Py-GC / MS method provides smaller errors than the NMR method.

[0091] From these results, it can be seen that the Py-GC / MS method is more suitable for binders containing four or more monomers. The EA method was used to calibrate the N content in the NMR calculations (NMR+EA method).

[0092] [Table 12]

[0093] Recovery ratio and error of monomers in 6 binder samples analyzed by Py-GC / MS, NMR and NMR+EA

[0094]

[0095] 1) Benzyl methacrylate, 2) N-phenylmaleimide, 3) Lauryl methacrylate, 4) cyclohexyl methacrylate,...

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Abstract

The present invention relates to a quantitative analysis method for a monomer of a color filter (CF) photoresist (PR) binder for a thin film transistor-liquid crystal display (TFT-LCD), and can perform quantitative analysis on a monomer of a CF PR binder for a RFT-LCD by using a Py-GC / MS used for qualitative analysis.

Description

technical field [0001] This application claims the benefit of priority from Korean Patent Application No. 10-2017-0117204 filed on September 13, 2017, the entire disclosure of which is incorporated herein by reference. [0002] The invention relates to a photoresist (PR) adhesive, in particular, a quantitative analysis method for monomers in a color filter (CF) PR adhesive used in a thin film transistor-liquid crystal display (TFT-LCD). Background technique [0003] TFT-LCD is an advanced liquid crystal display (LCD) that drives each pixel independently by adding an active element TFT (Thin Film Transistor) to each pixel in the LCD. TFT-LCD is a product with higher resolution by covering a glass plate with a thin semiconductor film made of silicon, where TFT is an ultra-thin film and turns on and off each pixel on the LCD so that each pixel independently driven. The TFT-LCD is mainly composed of a bottom glass substrate on which TFTs are formed, a top glass substrate on wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/72G01N30/06G01N30/12G01N30/88
CPCG01N30/06G01N30/12G01N30/72G01N30/88G01N2030/885G01N30/7206G01N2030/125
Inventor 韩秀妍Y.李金炳贤
Owner LG CHEM LTD
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