摘要:
There are here disclosed an amorphous alkoxyphthalocyanine which is a compound or a mixture of compounds represented by the formula (1) shown in Claim 1; and a method for preparing this amorphous alkoxyphthalocyanine which comprises the step of heating a crystalline phthalocyanine compound or a mixture of crystalline phthalocyanine compounds in an organic solvent.
摘要:
There are here disclosed an amorphous alkoxyphthalocyanine which is a compound or a mixture of compounds represented by the formula (1) shown in Claim 1; and a method for preparing this amorphous alkoxyphthalocyanine which comprises the step of heating a crystalline phthalocyanine compound or a mixture of crystalline phthalocyanine compounds in an organic solvent.
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:
Phthalocyanine compounds represented by the below-described formula are suitable for use in the fabrication of color filters.
wherein R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 and R 16 represent a group represented by the below-described formula, H or a halogen atom, R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 and R 15 represent an alkyl, alkoxyl, alkylthio, alkylamino, dialkylamino or aryloxyl, arylthio group or -COOR 17 , R 17 being a particular monovalent group, H or a halogen atom; and Met represents a metal atom.
wherein X and Z represent O or S, R 18 , R 19 and R 20 represent H or an alkyl group, A, B and D represent a connecting group, n and ℓ is an integer of 0-10, m, q, t, u, r and w are an integer of 0-2, and p is 0 or 1.
摘要:
There is here disclosed a method for preparing an alkoxyphthalocyanine represented by the formula (1):
wherein each of Rs is independently a secondary alkyl group having 3 to 20 carbon atoms, Met is a divalent metal atom or an oxy metal, and the substitution positions of -ORs are the 1- or 4-position, the 5- or 8-position, the 9- or 12 position, and the 13- or 16-position, which comprises the steps of heating a mixture of 3-alkoxyphthalonitrile and an organic base in an alcohol to 90-120°C, adding a metal derivative at the same temperature, and then carrying out reaction, or alternatively the step of reacting a mixture of a 1,3-diimino-4-alkoxyisoindoline and a metal derivative in the presence or absence of an organic base in an aliphatic alcohol having 6 or more carbon atoms. In addition, the ratio of isomers of the alkoxyphthalocyanine can be controlled by regulating the addition time of the organic base.
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:
Phthalocyanine compounds are described, which are represented by the following general formula (I): wherein R₁ - R₈ are individually a hydrogen atom or an alkyl or aryl group, a - h stand individually for an integer of 1-20, and M denotes two hydrogen atoms or a metal atom, metal halide, metal oxide, metal hydroxide, dialkylmetal, diarylmetal, bis(alkyloxy)metal or bis(trialkylsilyloxy)metal. Optical recording media and liquid crystal display panels, which contain at least one of the phthalocyanine compounds, are also described.