Patent Number: 6,761,952

Title: Bis-styryl dye and method for manufacturing the same and its use for a high density optical recording medium

Abstract: This invention provides imin complex dyes for a high-density optical disc recording medium having the following formula (I): ##STR1## wherein Y constitutes oxygen atom, sulfate atom, carbon atom with substitutes (C--R.sup.5) or nitrogen atom with substitutes (N--R.sup.6); R.sup.1 constitutes alkyl group having carbon number one to eighteen with or without substitutes or ether group, p-alkyl benzyl group with or without substitutes; R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.7 can be same or different groups; and X constitutes halogen atom, ClO4.sup.-, BF4.sup.-, PF6.sup.-, SbF6.sup.-, TCNQ.sup.-, TCNE.sup.-, naphthalenesulfonic acid or organometallic complex.x. The bis-styryl dyes whose spectra maximum absorption in visible light range of wavelength of 300 nm.about.800 nm can be used as a high density optical disc recording medium.

Inventors: Lee; Ming-Chia (Taichung Hsien, TW), Liao; Wen-Yih (Taichung, TW), Huang; Chien-Liang (Taoyuan, TW), Yan; Chuen-Fuw (Kaohsiung, TW), Jeng; Tzuan-Ren (Hsinchu, TW), Hsieh; Ching-Yu (Hsinchu, TW), Wang; Shin-Shin (Hsinchu, TW), Tsai; Hui-Ping (Changhua, TW), Lai; Chii-Chang (Fengyuan, TW), Ma; Jie-Hwa (Hsinchu, TW), Yang; Jong-Lieh (Hsinchu, TW)

Assignee: Industrial Technology Research Institute

International Classification: C09B 23/14 (20060101); C09B 23/00 (20060101); G11B 7/24 (20060101); G11B 7/247 (20060101); B32B 003/02 ()

Expiration Date: 07/12016