Unlock instant, AI-driven research and patent intelligence for your innovation.

Benzobisazole-base compound

A technology of benzobisazole-based compounds, which is applied in the field of benzobisazole-based compounds, can solve problems such as insufficient suitability for laser beams with a wavelength of 400-410nm

Inactive Publication Date: 2005-07-13
MITSUI CHEM INC +1
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current situation is that the above-mentioned optical recording medium using a blue semiconductor laser is not sufficiently suitable for a laser beam with a wavelength of 400 to 410 nm.
That is to say, the present inventors have found that the aforementioned medium using organic dyes has such a problem that the signal recorded on the medium may not always be satisfactorily read out because the carrier-to-noise ratio (C / N) not always a good value

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Benzobisazole-base compound
  • Benzobisazole-base compound
  • Benzobisazole-base compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0319] Regarding the compound represented by the general formula (1), a film of compound (1-1) with a thickness of 70 nm is formed on a disk-shaped substrate by vacuum deposition. The disk is made of polycarbonate resin and has continuous guide grooves ( Moment between tracks: 0.74 μm), the outer diameter of the disc is 120 mm, and the thickness is 0.6 mm.

[0320] Then, silver was sputtered to a thickness of 100 nm on the recording layer using a sputterer (CDI-900) manufactured by BALZAS. Argon was used as the sputtering gas. With sputtering power 2.5kW at 1.33Pa (1.0×10 -2 Torr) sputtering was carried out under the sputtering pressure.

[0321] Then, an ultraviolet curing resin SD-17 (manufactured by Dainippon Ink & Chemicals Co., Ltd.) was spin-coated on the reflective layer. Then, a polycarbonate resin substrate similar to the substrate described above but without guide channels was placed on the coated reflective layer and irradiated with ultraviolet radiation to bond ...

Embodiment 2 to 5

[0325] Optical recording media were prepared in the same manner as in Example 1 except that compounds (1-2) to (1-5) were used in the recording layer, and signals were recorded in the same manner as in Example 1. As a result, pits were successfully formed and signals were recorded on all of these optical recording media. And the pits can be read.

Embodiment 6

[0327] 0.2 g of compound (1-6) was dissolved in 10 ml of tetrafluoropropanol to prepare a compound solution.

[0328] The compound solution is spin-coated on a disc-shaped substrate made of polycarbonate resin. The disc has a continuous guide channel (inter-channel moment: 0.74μm), an outer diameter of 120mm, and a thickness of 0.6mm. -1 Rotate at a rotation speed of 100°C, and dry at 70° C. for 2 hours after spin coating to form a recording layer.

[0329] An optical recording medium was prepared in the same manner as in Example 1 except that the above-mentioned recording layer was formed, and signals were recorded in the same manner as in Example 1. As a result, pits were successfully formed on the optical recording medium, and signals were recorded. When the recording medium was played back at a linear velocity of 5.0 m / s by the same evaluation apparatus, pits could be read. The C / N ratio can be as good as 30dB or higher.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

An optical recording medium includes a substrate and an organic dye layer formed on the substrate as a recording layer, wherein the recording layer contains at least one benzobisazole-based compound represented by the general formula (1). [wherein, substituents X and Y each represent an aryl group or a heteroaryl group; rings A and B each represent an oxazole ring or a thiazole ring; and Q1 and Q2 each represent a hydrogen atom, a halogen atom or an alkyl group; provided that, The aryl or heteroaryl represented by substituent X and Y respectively can be halogen atom, hydroxyl, cyano, amino, substituted or unsubstituted alkyl, aralkyl, aryl, alkenyl, alkoxy, aryl Alkoxy, aryloxy, alkenyloxy, alkylthio, aralkylthio, arylthio, alkenylthio, monosubstituted amino, disubstituted amino, acyl, alkoxycarbonyl, aralkoxy carbonyl, aryloxycarbonyl, alkenyloxycarbonyl, monosubstituted aminocarbonyl, disubstituted aminocarbonyl, acyloxy or heterocyclic group, etc.].

Description

[0001] This application is a divisional application of the parent case whose application number is CN01805771.3. The filing date of the parent application was January 5, 2001; the title of the invention was "benzobispyrrolyl compound, a compound for optical recording media". technical field [0002] The present invention relates to compounds based on benzobisazoles, which are used as dyes, pigments, photoelectric functional materials and recording / storage materials, in particular as recording dyes for high-capacity optical recording media, such media can be used as blue Information is written to and read from it by a colored laser beam. Also, the present invention relates to an optical recording medium comprising a benzobisazole-based compound as a recording material, particularly a recordable optical recording medium into which and from which information can be written and read with a blue laser beam. Background technique [00...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07D498/04C07D513/04C09B57/00G11B7/244G11B7/246G11B7/247G11B7/2472G11B7/249G11B7/254G11B7/2542G11B7/258G11B7/2585G11B7/259
CPCC07D513/04C09B57/00G11B7/244G11B7/246G11B7/2472G11B7/249G11B7/2542G11B7/2585G11B7/259Y10S430/146B41M5/26
Inventor 小木曾章井上忍塚原宇西本泰三三泽伝美
Owner MITSUI CHEM INC