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Oxetane-cyclic epoxy compound, method of preparing the same, and composite sheet and display substrate

A technology of oxetane and epoxy compounds, which is applied in the field of composite sheets and display substrates using the composite sheets, can solve the problems of poor solubility and wettability, unsuitable flexible substrates, increased viscosity, etc. Long and good bending, low thermal expansion coefficient, low viscosity effect

Inactive Publication Date: 2012-11-14
CHEIL IND INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a benzene ring or fullerene structure is introduced, the sheet becomes less flexible and hard, and is not suitable for flexible substrates
In addition, the tablet becomes viscous, causing poor solubility and wettability, and becomes brittle

Method used

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  • Oxetane-cyclic epoxy compound, method of preparing the same, and composite sheet and display substrate
  • Oxetane-cyclic epoxy compound, method of preparing the same, and composite sheet and display substrate
  • Oxetane-cyclic epoxy compound, method of preparing the same, and composite sheet and display substrate

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0072] Preparation Example 1: Synthesis of Oxetane-Cyclic Epoxy Compound

[0073] NaH (6.4g) and 150ml of DMF were placed in a 500ml flask and stirred. After lowering the temperature with an ice bath, cyclohexenylmethanol (15 g) was slowly added to the above mixture and stirred at room temperature for 15 minutes. After lowering the temperature with an ice bath again, oxetane chloride (14.5 g) was slowly added to the above mixture over 10 minutes and stirred at room temperature for 2 hours. After the reaction, the H 2 O was slowly added to the product to remove the activity of the remaining sodium hydride, and then with ether / H 2 O treatment three times. MgSO 4 The organic layer was placed, then filtered and the solvent was removed using an evaporator to obtain a colorless liquid cyclohexenyl oxetane in 93% yield.

[0074] 1 H NMR (500MHz, CDCl 3 ): δ=1.25-1.30(m, 1H), 1.31(s, 3H), 1.71-1.83(m, 2H), 1.88-1.97(m, 1H), 2.04-2.14(m, 3H), 3.35(dd , 2H, 5Hz, 2Hz), 3.48(s, 2H...

Embodiment 1

[0078] Embodiment 1: prepare composite sheet

[0079]4.9 g of the oxetane-cyclic epoxy compound synthesized in Preparation Example 1, 5.1 g of bisphenol A diglycidyl ether and 0.2 g of triaryl hexafluorosulfonium antimonate were thoroughly mixed. 10 g of E-glass fiberglass (product name: 3313, Nittobo Co., Ltd.) was injected into the mixture, and then the article was placed between release-treated glass substrates, and UV irradiation was performed on both sides of the substrates for 2 minutes, thereby producing A transparent composite sheet with a binder content of 50 wt% (resin content: 50 wt%). figure 2 Its TMA map is shown.

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Abstract

The invention provides an oxetane-cyclic epoxy compound, a method of preparing the same, a composite sheet comprising the oxetane-cyclic epoxy compound and a display substrate comprising the composite sheet. The composite sheet comprises the oxetane-cyclic epoxy compound used as an adhesive and represented by the formula 1 presents an excellent flexibility suitable for the display substrate, and has very good heat resistance, optical performance, crack resistance, mechanical property and machinability. In the formular 1, R1 is hydrogen, a methyl group or an ethyl group.

Description

technical field [0001] The present invention relates to novel oxetane compounds, processes for preparing said oxetane compounds, and composite sheets comprising said oxetane compounds for use as display substrates. More specifically, the present invention relates to a composite sheet using a newly synthesized oxetane-cyclic epoxy compound having a specific structure as an adhesive to have excellent Flexible while exhibiting excellent heat resistance, optical properties, crack resistance, mechanical properties and processability. Background technique [0002] Glass having excellent heat resistance, transparency, and low linear expansion coefficient is widely used as a substrate for liquid crystal displays (LCDs), organic electroluminescent (EL) displays, color filter substrates, solar cell substrates, and the like. Recently, since substrate materials for displays are required to have small size, slimness, light weight, impact resistance, and flexibility, plastic materials ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D407/12C08L63/00C08K7/14C08K7/20C08K7/00C08K3/40C08G59/24
CPCC08K3/40C08K7/14C08G59/24C07D407/12C08G65/22C08K7/20C08G65/18C08L63/00C08K7/00Y10T428/24994Y10T442/10Y10T442/2951Y10T442/2992C07D301/10C08J5/18C08J5/04C08J5/043
Inventor 金荣权李尚杰金泰浩李雨晋金星国全贤爱金闰柱卓相镕朴淑延姜京男
Owner CHEIL IND INC