Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Use of indolinium diazamethine cations for optical data recording

A technology for optical data and applications, applied in the field of optical layers for optical data recording, can solve problems such as blocking dyes

Inactive Publication Date: 2010-03-24
CLARIANT FIANCE (BVI) LTD
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Unfortunately, the dye compounds described so far still exhibit disadvantages that prevent their satisfactory use as dyes for optical data storage

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
  • Use of indolinium diazamethine cations for optical data recording
  • Use of indolinium diazamethine cations for optical data recording
  • Use of indolinium diazamethine cations for optical data recording

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0229] Diazotization reaction and azo coupling reaction

[0230] 32.2 g of concentrated aqueous HCl were added dropwise to a solution consisting of 12.4 g of 2-methoxyaniline in 100 ml of water. The temperature was lowered to 0°C using an ice bath and 20.8 ml of aqueous sodium nitrite (33.3 wt %) was added dropwise while maintaining the temperature below 5°C. The resulting solution was stirred at 0°C for 1 hour and added dropwise at 10°C to a mixture of 17.6 g 1,3,3-trimethyl-2-methyl-indoline, 31.8 g Na 2 CO 3 , 100ml of methanol and 30ml of water in a mixture.

[0231] After complete addition, the resulting mixture was stirred at 10°C for 1 hour. Concentrated aqueous HCl was then added until pH=7. The resulting precipitate was filtered, washed with 1000 ml of water and air-dried to give 28.3 g of a yellow intermediate, namely the compound of formula (Vd_1).

[0232] Alkylation Method A

[0233] 28.3 g of the obtained compound of formula (Vd_1) are taken up in 200 ml of...

Embodiment 2 to 8

[0234] Embodiment 2 to 8: diazotization and coupling reaction

[0235] The corresponding aniline compounds are used to carry out the diazotization and coupling reactions according to Example 1 to obtain the formulas (2_1), Compounds of (3_I), (4_I), (1_Cl), (3_Cl), (5_Cl) and (7_I).

Embodiment 2 to 4 and 8

[0236] Examples 2 to 4 and 8: Alkylation Method A

[0237] The corresponding intermediates are used to carry out the alkylation according to Example 1. In cases where the desired final compound did not precipitate, the reaction mixture was evaporated to dryness and the compound was used without further purification, as was the case for example 4.

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The present invention relates to pyridinone based azo dyes and / or of anionic azo metal complex dye salts made thereof with cationic basic yellow dyes, which are characterized by an unsaturated bond inbeta-position to the endocyclic N atom of the pyridinone, and to their use in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 nm. The invention further relates to a write once read many (WORM) type optical data recording medium capable of recording and reproducing information with radiation of blue laser, which employs pyridinone based azo dyes and / or anionic azo metal complex dye salts made thereof with cationic basic yellow dyes, which are characterized by an unsaturated bond in beta-position to the endocyclic N atomof the pyridinone, in the optical layer.

Description

technical field [0001] The present invention relates to the use of dye salts of indolinium diazamethine type cations with pyridone-based azo metal complex anions for optical data recording, preferably for optical data recording using lasers with a wavelength of up to 450 nm use in the optical layer. [0002] The present invention further relates to a write-once read-many (WORM) type optical data recording medium capable of recording and reproducing information using blue laser radiation, which uses indolinium diazamethine in the optical layer Dye salts of base-type cations with pyridone-based azo metal complex anions. Background technique [0003] Recently, organic dyes have attracted considerable attention in the field of diode-laser optical data storage. WORM-type optical data recording media, such as commercial compact disc recordable (CD-R) and recordable digital versatile disc (DVD-R), can contain in the recording layer based on phthalocyanine, semicyanine, cyanine an...

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): G11B7/249G11B7/246G11B7/2467G11B7/2495G11B7/254G11B7/2542G11B7/257G11B7/2575
CPCC09B69/02G11B2007/25706G11B7/246G11B7/2575C09B45/20G11B7/2542C09B45/025G11B7/2467G11B2007/25713G11B2007/25715C09B69/045C07D209/14C09B29/363G11B7/2495C09B67/0051C07D213/85C09B29/00C09B29/36
Inventor C·克莱因J-C·格拉赛特L·鲁克M·A·温特尔
Owner CLARIANT FIANCE (BVI) LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products