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Ultraviolet (UV) adhesive for liquid crystal displays ( LCD)

A technology of epoxy resin and mixture, applied in adhesives, non-polymer organic compound adhesives, etc., can solve the problems of poor resistance to heat and humidity, poor yellowing resistance, low bonding strength, etc., and achieve good thermal and water stability , the effect of high eliciting activity

Inactive Publication Date: 2011-07-27
DONGGUAN ALBIYA ENERGY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The purpose of the present invention is to overcome the shortcomings of existing UV adhesives such as low bonding strength, poor heat and humidity resistance and yellowing resistance, and provide a LCD panel with high bonding strength, yellowing resistance, and heat and humidity resistance. UV glue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1, glycidyl ester epoxy resin 41%, polysulfide rubber modified epoxy resin 10%, polyamide resin modified epoxy resin 7%, urea melamine resin modified epoxy resin 6%, 2( 2,4,6-trimethylbenzoyl)-phenylphosphine oxide 1.3%, 2-hydroxy-2-methyl-1-phenyl-1-propanone 1%, aromatic sulfur salt 0.25%, 2,4 , ethyl 6-trimethylbenzoylphenylphosphonate 1.45%, dimethylbenzylamine (benzyldimethylamine) 2%, 1,2-dimethylimidazole 1.4%, dicumyl peroxide 3.5%, Dilauroyl Peroxide 2%, Trimethylolpropane Triacrylate 5%, Ethoxylated Neopentyl Glycol Methoxy Monoacrylate 7%, Polydipentaerythritol Hexaacrylate 6%, γ- [(2,3)-Glycidoxy] Propyltrimethoxysilane 2.5%, Isooctyltin Dimethyldithioglycolate 1.2%, Antimony Pentathiol 0.5%, Pentaerythritol 0.9%

[0048] This product has excellent overall performance and is suitable for general-purpose LCD packaging. It has excellent resistance to yellowing and heat and humidity.

Embodiment 2

[0049] Embodiment 2, glycidyl ester epoxy resin 50%, polysulfide rubber modified epoxy resin 3%, polyamide resin modified epoxy resin 5%, urea aldehyde melamine resin modified epoxy resin 2%, 2, 4,6(trimethylbenzoyl)diphenylphosphine oxide 3.5%, 2,4,6-trimethylbenzoylphenylphosphonic acid ethyl ester 2.5%, 2-phenylbenzyl-2-dimethyl Amino-1-(4-morpholine benzylphenyl) butanone 1.5%, benzyltriethylammonium chloride 3%, 1,2-dimethylimidazole 2.5%, dicumyl peroxide 3.5%, Tripropylene glycol diacrylate 3%, ethoxylated neopentyl glycol methoxy monoacrylate 12%, 2-methyl-1,3-propanediol diacrylate 4%, γ-(methacryloyloxy ) Propyltrimethoxysilane 1%, Vinyltris(βmethoxyethoxy)silane 1.5%, Di-n-octyltin dimercaptoacetate 0.45%, Antimony pentathiol 0.75%, Epoxy 0.8% .

[0050] This product has excellent moisture and heat resistance, maintains excellent adhesion for a long time, and has excellent anti-yellowing and anti-aging properties.

Embodiment 3

[0051] Embodiment 3, glycidyl ester epoxy resin 49%, polysulfide rubber modified epoxy resin 3%, polyamide resin modified epoxy resin 5%, urea aldehyde melamine resin modified epoxy resin 5%, 2, 4,6(trimethylbenzoyl)diphenylphosphine oxide 3%, 2(2,4,6-trimethylbenzoyl)-phenylphosphine oxide 2.1%, 2-methyl-1-[ 4-methylthiophenyl]-2-morpholino-1-acetone 3%, dimethylbenzylamine (benzyldimethylamine) 3.5%, benzyltriethylammonium chloride 2.5%, diperoxide Lauroyl 2%, Ethoxylated Trimethylolpropane Triacrylate 10%, Ethoxylated Neopentyl Glycol Methoxy Monoacrylate 3%, 2-Methyl-1,3-Propanediol Diacrylate 4%, γ-[(2,3)-glycidoxy]propyltrimethoxysilane 1.5%, γ-(methacryloyloxy)propyltrimethoxysilane 1%, dimercaptoacetic acid isooctyl 0.7% di-n-octyl tin ester, 0.5% antimony pentathiol, 1.2% epoxy resin.

[0052] This product has excellent resistance to humidity and heat, high bonding strength, suitable for sealing or pin packaging of large LCD panels, and has excellent yellowing resis...

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PUM

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Abstract

The invention discloses a UV adhesive for LCDs, which is characterized by being prepared by mixing the following materials in percentage by weight: 55 to 85 percent of epoxy resin, 2 to 9 percent of photoinitiator, 1 to 5 percent of promoter, 3 to 10 percent of cross-linking agent, 10 to 30 percent of diluent, 0.5 to 3 percent of thickener, 0.2 to 2 percent of stabilizer and 0.5 to 1.5 percent of other assistant. By adding the photoinitiator, the crosslinking agent and the promoter into the epoxy resin system, the product has high damp and heat resistance, high yellowing resistance and high machine-shaping performance; and by adding the stabilizer, the thickener and other assistant at the same time, the product has high adhesive performance and long service life for adapting to gradually increasing needs of the LCD industry.

Description

technical field [0001] The invention belongs to polymer materials, relates to the field of LCD panel potting materials, in particular to a UV glue used for LCD panel sealing and pin pin potting. Background technique [0002] At present, the world's major liquid crystal material manufacturers: MERCK of Germany, CHISSO and DIC of Japan, and Yongsheng Huaqing of China. Among them, MERCK has the largest output, accounting for about 50% of the global total. It has factories in Germany, Japan, and Taiwan, and its sales in 2009 increased by 23.5% over the previous year. [0003] Research on liquid crystal materials in my country began in 1969. In 1987, the official production of liquid crystal materials began, breaking the long-term technology monopoly of Germany and Japan. Restricted by a variety of subjective and objective factors, at present, my country's liquid crystal materials are only low-end TN and STN types, and most high-end materials (mainly TFT materials) are still in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06
Inventor 赵文川邓聪赵文利
Owner DONGGUAN ALBIYA ENERGY SCI & TECH
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