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Stabilizers and liquid crystal compositions containing stabilizers

一种液晶组合物、稳定剂的技术，应用在液晶材料、仪器、有机化学等方向，能够解决材料不能满足使用条件等问题，达到优越可靠性、高清亮点、低粘度的效果

Active Publication Date: 2017-12-12
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Simply relying on the material itself can no longer meet such harsh conditions of use

Method used

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  • Stabilizers and liquid crystal compositions containing stabilizers
  • Stabilizers and liquid crystal compositions containing stabilizers
  • Stabilizers and liquid crystal compositions containing stabilizers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107]

[0108] route:

[0109]

[0110] Operating procedures:

[0111] Add 4-cyclopentylcyclohexylphenol (95g, 0.389mol) and 500ml of petroleum ether into a 2L three-necked flask, stir for 5min, add 39g of concentrated sulfuric acid, heat up to 70°C (water bath), add dropwise tert-butanol (151g, 2.04mol ) and 100ml of petroleum ether mixture, add dropwise for 2 hours, control the temperature at 70-72°C, after dropping, keep warm for 4 hours; directly separate the liquid, remove the sulfuric acid, add 300ml of water, 1LEA, stir for 5min, separate the liquid, and spin the organic phase directly Dry, 1 times of petroleum ether, 3 times of ethanol was heated to dissolve the product, refrigerated for 6 hours, suction filtered, repeated crystallization 3 times to obtain 57g, GC: 99.88%, yield 40%.

Embodiment 2

[0113]

[0114] route:

[0115]

[0116] Add 4-(5'-cyclobutyltetrahydropyran)phenol (93g, 0.4mol) and 500ml of petroleum ether into a 2L three-necked flask, stir for 5min, add 39g of concentrated sulfuric acid, heat up to 70°C (water bath), dropwise add tert Mixture of butanol (151g, 2.04mol) and 100ml of petroleum ether, add dropwise for 2 hours, control the temperature at 70-72°C, after dropping, keep warm for 4 hours; directly separate the liquid, remove the sulfuric acid, add 300ml of water, 1L of ethyl acetate, Stir for 5 minutes, separate the liquid, spin the organic phase to dry directly, heat to dissolve the product with 1 times of petroleum ether and 3 times of ethanol, freeze in the refrigerator for 6 hours, suction filter, and repeat the crystallization 4 times to obtain 50 g, GC: 99.66%, yield 35%.

Embodiment 3

[0118]

[0119] route:

[0120]

[0121] Add 4-(5'-cyclopropyl-1',3'-dioxane)phenol (44g, 0.2mol) and 300ml of petroleum ether into a 1L three-necked flask, stir for 5min, add 20g of concentrated sulfuric acid, and heat up to 70°C (water bath), dropwise add tert-butanol (74g, 1mol) and 50ml petroleum ether mixture, dropwise time 2h, temperature control 70-72°C, after dropwise, keep warm for 4h; , 500mL ethyl acetate, stirred for 5min, separated, the organic phase was spin-dried directly, 1 times of petroleum ether, 3 times of ethanol was heated to dissolve the product, frozen in the refrigerator for 6 hours, suction filtered, repeated crystallization 4 times to obtain 33g, GC: 99.5% , yield 50%.

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PUM

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Abstract

The invention discloses novel stabilizers represented by a formula I, and also discloses liquid crystal compositions containing the stabilizers represented by the formula I. The liquid crystal compositions disclosed by the invention have low viscosity gamma 1, moderate dielectric anisotropy delta epsilon, and moderate optical anisotropy delta n, and most important is that the liquid crystal compositions have high reliability, and can realize liquid crystal display quick response.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a novel stabilizer, a liquid crystal composition containing the stabilizer, and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. Background technique [0002] At present, the application range of liquid crystal compounds is expanding more and more widely, and it can be applied to various types of displays, electro-optic devices, sensors, and the like. There are various types of liquid crystal compounds used in the above-mentioned display fields, among which nematic liquid crystals are most widely used. Nematic liquid crystals have been used in passive TN, STN matrix displays and systems with TFT active matrix. [0003] For the application field of thin film transistor technology (TFT-LCD), although the market has been huge in recent years and the technology has gradually matured, people's requirements for display technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/54C09K19/44G02F1/13
CPCC09K19/44C09K19/54G02F1/13C09K19/20C09K2019/122C09K2019/3009C09K2019/3021C09K2019/3025C09K2019/3096C07C2601/08C07C2601/02C07C2601/04C07C2601/14C07C39/17C07C43/23C07C43/253C07D309/06C07D319/06C09K19/3066C09K19/3402C09K2019/0466C09K2019/3422C09K2019/3425G02F1/13712G02F1/1368
Inventor 温刚孟劲松尚洪勇张丽梅员国良张兴
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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