Optical recording medium dye and optical recording medium using same

A technology for optical recording and media, which is applied in the direction of optical recording carrier, optical recording/reproduction, organic dyes, etc. It can solve the problems of incorrect data, destruction, low cracking temperature and thermal resistance, etc., and achieve the effect of ensuring accuracy

Inactive Publication Date: 2008-10-08
RYTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the cyanine dye has problems of low decomposition temperature and heat resistance. For example, in the case of using laser light for recording, the heat accumulated by the laser irradiation may make no signal formed. The pit (pit) is also thermally cracked and deformed, thus making the data recorded on the recording layer on the optical disc incorrect
Moreover, even in the case of reading with a laser, if the laser is irradiated for too long, the accumulated heat may also cause the above problems, thereby making the information on the optical disc incorrect or damaged.

Method used

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  • Optical recording medium dye and optical recording medium using same
  • Optical recording medium dye and optical recording medium using same
  • Optical recording medium dye and optical recording medium using same

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0027]

[0028] Add 5 grams of iodide 1-methyl-2.3.3-trimethyl-6-bromo-benzo[e]indole (1-methyl-2.3.3-trimethyl-6-bromo- benzo[e]indolium iodide), 0.85 g of triethyl orthoformate and 10 ml of pyridine, heated to reflux at 120° C. for 3 hours, and then cooled the reaction to room temperature. 50 ml of 6N hydrochloric acid and 250 ml of distilled water were mixed in a beaker, and the aforementioned reaction solution was slowly poured into the beaker, and stirred for 8 hours. The mixture was filtered to obtain the dye, and the dye was washed several times with distilled water, and the obtained dye was bis(1-methyl-3.3-dimethyl-6-bromo-benzo[e]indole)-2 iodide: 2'-propylmethine (bis(1-methyl-3.3-dimethyl-6-bromo-benzo[e]indo)-2: 2'-propylmethineiodide) 2.6 g. The aforementioned dyes were placed in a round bottom bottle, and 5.2 g of potassium fluorophosphate (KPF 6 ) and 30 ml of methanol, and after stirring for 24 hours, the crystals can be obtained by filtration, and the res...

experiment example 2

[0031]

[0032]Add 4.6 grams of 1-butyl-2.3.3-trimethyl-6-bromo-benzo[e]indole iodide (1-butyl-2.3.3-trimethyl-6-bromo-benzo [e]indolium iodide), 5 grams of 1-butyl-2-(anilinovinyl)-3.3-dimethyl-benzo[e]indole (1-butyl-2-(anilinovinyl)-3.3- dimethyl-benzo[e]indolium iodide), 10 ml of pyridine, 2.4 ml of glacial acetic acid, and 2.5 ml of triethylamine. After heating to reflux for 3 hours, the reaction was allowed to cool to room temperature. 50 ml of 6N hydrochloric acid and 250 ml of distilled water were mixed in a beaker, and the aforementioned reaction solution was slowly poured into the beaker, and stirred for 8 hours. Filter the mixture to obtain the dye, and rinse the dye several times with distilled water to obtain 1-butyl-3.3-dimethyl-1'-butyl-3'.3'-dimethyl-6 iodide '-Bromo-bis-benzo[e]indole)-2:2'-propylmethine (1-butyl-3.3-dimethyl-1'-butyl-3'.3'-dimethyl-6'-bromo- bis-benzo[e]indo-2: 2'-propylmethine iodide) 3.1 g. Place the aforementioned dye in a round bott...

experiment example 3

[0035]

[0036] The cyanine dyes prepared in Experimental Example 1 and Experimental Example 2 were respectively dissolved in 10 ml of Tetrafluoropropane, and filtered through filter paper with a pore size of 0.25 μm to obtain a filtrate. Take 5ml of the filtrate and spin-coat (spin on coating), and spin-coat it on a polycarbonate resin substrate with a diameter of 12 cm rotating at a speed of 500 rpm to form a coating layer as the recording layer of the optical recording medium, and the above-mentioned substrate The surface of has groove tracks with a depth of 160 nm and a width of 0.3 μm. The above-mentioned substrate with the optical dye coating layer was then dried at a temperature of 85° C. for 20 minutes.

[0037] Next, a gold (Gold) layer with a thickness of 100nm is plated on the recording layer by sputtering as a reflective layer, and then a layer of UV-curable resin is spin-coated on the reflective layer by spin coating , and irradiate the UV curable resin layer w...

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Abstract

The invention provides an optical recording medium dye which belongs to the category of cyanine dyestuff with the constitutional formula disclosed in the specification, wherein A, B are the same or different hydrogen atom, halogen or nitrogen containing group, R1, R2 are individual same or different substituted or un-substituted straight chain shaped or branch shaped alkyl, alkene, aralkyl, alkoxycarbonyl, alkoxy, alkylamino, alkoxyalkyl, and X is negative ion.

Description

technical field [0001] The present invention relates to a write-once digital optical recording medium, and particularly relates to a dye for an optical recording medium and an optical recording medium using the dye for the optical recording medium. Background technique [0002] Due to the advantages of high storage density, small size, long storage period, low cost, high compatibility and low error rate, compact disks (CDs) have become the mainstream of optical information recording media. Among various types of optical discs, the most widely used is the so-called compact disc-recordable (CD-R), whose recording principle is to use a laser beam with a wavelength of 770nm to 830nm to record and read data. Pick. [0003] However, with the popularization of multimedia (Multimedia) application information, many materials contain a large amount of text, sound and video, and the capacity of the original CD-R disc of 650MB can no longer meet the audio-visual needs of the next gener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/24C09B23/00G11B7/2472
Inventor 郭朝楠胡美蓉
Owner RYTEC CORP
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