摘要:
Near infrared absorbers which have a molecular extinction coefficient of 200,000 or more and are represented by the formula (I) wherein each of Y¹, Y², Y³, Y⁴, Y⁵, Y⁶, Y⁷ and Y⁸ is hydrogen, an alkyl group, alkoxyl group or alkylthio group; each of A¹, A², A³, A⁴, A⁵, A⁶, A⁷ and A⁸ is hydrogen, halogen, a nitro group, alkyl group, aralkyl group, alkenyl group, alkynyl group, alkoxyl group, aryloxy group, alkylthio group or arylthio group; and Met represents two hydrogen atoms or a metal, are useful for the production of optical display and recording materials.
摘要:
Disclosed are near-infrared absorbents comprising 1,2-naphthalocyanine derivatives wherein the four naphthalene rings contained in the molecule independently have 1 to 6 substituents. Also disclosed is the use of these near-infrared absorbents in optical recording media, near-infrared absorption filters and display materials.
摘要:
Near-infrared absorbers which contain phthalocyanine derivatives in which the four benzene rings contained in the molecule independently have 1 to 4 substituents are light and thermal resistant and possess high molar extinction coefficients. Such near-infrared absorbers are useful in optical recording media, near-infrared absorption filters, and liquid crystal display devices.
摘要:
Near-infrared absorbers which contain phthalocyanine derivatives in which the four benzene rings contained in the molecule independently have 1 to 4 substituents are light and thermal resistant and possess high molar extinction coefficients. Such near-infrared absorbers are useful in optical recording media, near-infrared absorption filters, and liquid crystal display devices.
摘要:
Disclosed are near-infrared absorbents comprising 1,2-naphthalocyanine derivatives wherein the four naphthalene rings contained in the molecule independently have 1 to 6 substituents. Also disclosed is the use of these near-infrared absorbents in optical recording media, near-infrared absorption filters and display materials.
摘要:
Near infrared absorbers which have a molecular extinction coefficient of 200,000 or more and are represented by the formula (I) wherein each of Y¹, Y², Y³, Y⁴, Y⁵, Y⁶, Y⁷ and Y⁸ is hydrogen, an alkyl group, alkoxyl group or alkylthio group; each of A¹, A², A³, A⁴, A⁵, A⁶, A⁷ and A⁸ is hydrogen, halogen, a nitro group, alkyl group, aralkyl group, alkenyl group, alkynyl group, alkoxyl group, aryloxy group, alkylthio group or arylthio group; and Met represents two hydrogen atoms or a metal, are useful for the production of optical display and recording materials.