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Protonated nitrones containing dye composition and its preparation method

A composition and product technology, applied in the field of holographic recording media, can solve the problems of complicated recording and reading

Inactive Publication Date: 2010-05-05
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with increasing dye concentration and absorption cross-section product, storage media (e.g. optical data storage disks) may become opaque, which may complicate recording and readout

Method used

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  • Protonated nitrones containing dye composition and its preparation method
  • Protonated nitrones containing dye composition and its preparation method
  • Protonated nitrones containing dye composition and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] Example 1: Preparation of Dye

[0124] Step A: Preparation of Phenylhydroxylamine

[0125]Ammonium chloride (20.71 g, 0.39 mol), deionized water (380 mL), nitrobenzene (41.81 g, 0.34 mol) and ethanol (420 mL, 95%) were added to a mixture equipped with a mechanical stirrer, a thermometer and a ventilator. Nitrogen-necked 1 L three-neck round bottom flask. The resulting reaction mixture was cooled to 15 °C using an ice-water bath. Zinc dust (46.84 g, 0.72 mol) was added to the cooled mixture in portions over half an hour while ensuring that the temperature did not exceed 25°C. After all the zinc had been added, the reaction mixture was warmed to room temperature. The warmed mixture was stirred for half an hour and then filtered to remove zinc salts and unreacted zinc. The filter cake (ie zinc salt) was washed first with hot water (about 200 ml) and then with dichloromethane (about 100 ml). The filtrate was extracted with dichloromethane (ca. 100 mL). The dichloromet...

Embodiment 2

[0128] Example 2: Preparation of Dye

[0129] Step A: Preparation of 4-acetoxyphenylhydroxylamine

[0130] Ammonium chloride (9.2 g, 0.17 mol), deionized water (140 mL), p-nitroethylbenzoic acid (29.28 g, 0.15 mol) and ethanol (150 mL, 95%) were added to a mixer equipped with a mechanical stirrer. , a thermometer and a 500-ml three-neck round-bottomed flask with a nitrogen port. The resulting reaction mixture was cooled to 15 °C using an ice-water bath. Zinc powder (21.82 g, 0.34 mol) was added to the cooled mixture in portions over 0.25 hours while ensuring that the temperature did not exceed 15°C. After all the zinc had been added, the reaction mixture was warmed to room temperature. The warmed mixture was stirred for 1 hour, then filtered to remove zinc salts and unreacted zinc. The filter cake (ie zinc salt) was washed first with hot water (about 200 ml) and then with dichloromethane (about 100 ml). The filtrate was extracted with dichloromethane (ca. 100 mL). The di...

Embodiment 3

[0133] Embodiment 3: the technological process of preparing solution sample

[0134] About 2 mg of the dye prepared in Example 1 or Example 2 was added to acetonitrile (100 mL). The resulting mixture was stirred for approximately 2 hours or until the dye was completely dissolved in acetonitrile.

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Abstract

This invention relates to contains protonated nitrone dye composition and its preparation method. In an implementation program, provides a composition. The composition has the structure shown in general formula I: where R1 and R2 in all cases is a independently from 1 to about 10 carbon atoms of the lipid-based, with from about 3 to about 10 carbon ring grease-based, or have from about 3 to about 12 carbon aryl; R3, R4 and R5 in all cases independently hydrogen atoms, with from 1 to about 10 carbon atoms of the lipid-based, with from about 3 to about 10 resin-based carbon ring, or have from about 3 to about 12 carbon aryl; R6 and R7 in all cases independently hydrogen atoms or with from 1 to about 6 carbon resin base; X is hydrogen; and 'n' is from 0 to about 4 integers.

Description

technical field [0001] The present invention includes embodiments that may involve holographic recording media. The present invention includes embodiments that may involve compositions comprising protonated nitrone dyes. The present invention includes embodiments that may relate to methods of making and using holographic recording media. Background technique [0002] Holographic recording is the storage of information in the form of holograms. This information can be stored in different forms, including binary data, images, barcodes, and rasters. A hologram is an image of a three-dimensional interference pattern. These patterns can be obtained by the intersection of two light beams in a photosensitive medium. Compared with the planar storage format, a difference of volume holographic recording is that a large number of holograms can be stored in an overlapping manner in the same volume of photosensitive media through multiplexing technology. This multiplexing technique ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B51/00C07C207/00C07C201/00G11B7/246
CPCG03H1/02G11B7/246C09B55/002G03H2001/0264G03F7/001G11B7/0065C09B23/14C09B23/164C09B51/005G11B7/24044
Inventor G·C·达维斯K·龙利M·辛哈C·G·埃尔本S·贾殷
Owner GENERAL ELECTRIC CO
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