Industrial Technology Research Institute

Chii-Chang Lai

Hui-Ping Tsai

Shin-Shin Wang

Wen-Yih Liao

Chien-Liang Huang

Jong-Lieh Yang

Tzuan-Ren Jeng

Ming-Chia Lee

Chuen-Fuw Yan

Chien-Wen Chen

Ching-Yu Hsieh

Wen-Ping Chu

An-Tse Lee

Jie-Hwa Ma

An indolestyryl compound. The indolestyryl compound has formula (I): 

Indolestyryl compound and high density recording media utilizing the same

A bis(indolestyryl) compound. The bis(indolestyryl) compound has formula (I): 

Bis (indolestyryl) compound and high density recording media utilizing the same

A bisstyryl compound. The bisstyryl compound has formula (I): 

Bisstyryl compound and high density recording media utilizing the same

An asymmetric bis(indolestyryl) compound. The asymmetric bis(indolestyryl) compound has formula (I): 

Asymmetric bis (indolestyryl) compound and high density recording media utilizing the same

Indolestyryl compounds and use thereof for a high density recording media and method for fabricating the same. The indolestyryl compounds exhibit strong absorbance in the visible light region (400&#x2dc;700 nm) of the spectrum, resistance to heat and light, high light sensitivity, and excellent solubility, resulting from their special chemical configuration. Furthermore, the indolestyryl compounds can be used as recording layer materials in high density recording media for matching a reading laser wavelength and enhancing the reflective index and carrier-to-noise ratio (CNR) of the high density recording media. Accordingly, the recording sensitivity and the readout characteristics of high density recording media comprising the indolestyryl compound according to the present invention can be improved.

Indolestyryl compound for use in recording media and method for fabrication thereof

The invention discloses new benzoindole styryl compounds and its use for a high-density optical recording medium. The invention uses the dyes of the new benzoindole styryl compounds to form the recording layer of high-density recording media. The new benzoindole styryl compounds are easy to prepare and purify, so they are cheaper when comparing to the compounds generally used in high-density optical recording media. The benzoindole styryl compounds has a maximum absorption for the light wavelength in the range of 500 nanometers to 700 nanometers. The benzoindole styryl compounds also have high sensitivity and chemical stability for light and heat. Using the new benzoindole styryl compounds to form a high-density optical recording medium can match up with the short-wavelength laser beam for high-density optical recording media and have the advantage of a stable quality.

Benzoindole styryl compounds and their uses in high-density recording media

The invention discloses new indolestyryl compounds and their uses for a high-density optical recording medium. The invention uses the new indolestyryl compounds to form the recording layer of a high-density recording medium. The new indolestyryl compounds are easy to prepare and purify, so they are cheaper when comparing to the compounds generally used in high-density optical recording media. The indolestyryl compounds have a maximum absorption for light wavelengths in the range of 500 nanometers to 700 nanometers. The indolestyryl compounds also have high sensitivity and chemical stability toward light and heat. Using the new indolestyryl compounds to form high-density optical recording media can match up with the short-wavelength laser beam for high-density optical recording media and have the advantage of a stable quality.

Indolestyryl compounds and their uses in high-density recording media

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

A process for the purification of water-soluble non-ionic contrast agents from water-soluble non-ionic impurities involves the steps of (a) injecting a raw water-soluble non-ionic contrast agent solution on a chromatographic column containing non-ionic resins; (b) eluting water-soluble impurities contained in the raw water-soluble non-ionic contrast agent solution with deionized water as a first eluent, and (c) eluting a water-soluble non-ionic contrast agent with alcohol as a second eluent.

Growing community of inventors

Taichung Hsien, Taiwan

Chii-Chang Lai