37621-22-0Relevant articles and documents
Photoelectric material using organic photosensitising dyes and manufacturing method thereof
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, (2008/06/13)
A photoelectric material having high efficiency and superior durability is provided. The photoelectric material includes a semiconductor (5) and a photosensitising dye (4) attached to the semiconductor (5), wherein the dye (4) is a phthalocyanine derivative, a dioxazine derivative or an indigo derivative having at least one interlocking group and at least one hydrophobic group selected from the group consisting of monovalent substituted and unsubstituted aliphatic hydrocarbon groups and monovalent substituted and unsubstituted alicyclic hydrocarbon groups. The hydrophobic group is preferably an alkyl group with 3 to 12 carbon atoms. The interlocking group is a carboxyl group, a sulfonic acid group, phosphono group or the like. In manufacturing the photoelectric material, the dye is dissolved in a hydrophobic and/or aprotic solvent. In order to attach the dye to the semiconductor, the semiconductor is dipped in the dye solution.
Asymmetric dioxazine compounds having a triazinyl bridging group and a method of production and use thereof
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, (2008/06/13)
An asymmetric dioxazine compound of the following formula in the free acid form, STR1 wherein R is hydrogen, halogen, sulfo or alkoxy, R1, R2 and R3 are each hydrogen or alkyl, X1 and X2 are each hydrogen, halogen, alkyl, alkoxy or phenoxy, Y is alkylene, phenylene or naphthylene, Z is --SO2 CH=CH2, --SO2 CH2 CH2 OSO3 H or the like, V is hydrogen, alkyl, acyl or substituted triazinyl, and Q is halogen, alkoxy, amino or a group similar to that of STR2 provided that R is hydrogen, and Q is amino or a group similar to that of STR3 when V is substituted triazinyl, which is useful for dyeing or printing fiber materials to give dyed or printed products of a brilliant blue color superior in fastness properties, particularly those such as chlorine fastness with superior build-up property.
Preparation of dioxazine compounds
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, (2008/06/13)
A process for the preparation of dioxazine compounds of the formula STR1 in which B1 and B2 designate a ring system with 1, 2, 3 or 4 carbocyclic and/or heterocyclic rings which can be substituted, and X1 and X2 designate hydrogen, halogen, --R', --OR', --NHR', --NR'R", STR2 R' and R" representing alkyl, cycloalkyl, aryl and aralkyl and n denoting 2, 3, 4, 5, 6, 7, 8, 9, 10 or 11, it being possible for the n bromine atoms, independently of one another, to replace both H atoms of the ring systems B1 and B2 or their substituents and H atoms of X1 and X2 as well as X1 and X2 themselves, is characterized in that compounds of the formula II STR3 are reacted with bromine, preferably in the presence of diluents.
Dioxazine pigments
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, (2008/06/13)
Disclosed are dioxazine compounds of formula I STR1 in which each R, independently, is C1-4 alkyl, their production and use as pigments.
Process for producing dioxazine violet pigment
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, (2008/06/13)
A process for producing stable (β-type) dioxazine violet pigment having superior gloss and tinting strength to the metastable (α-type or a type analogous thereto) dioxazine violet pigment, by mixing an aqueous suspension of a metastable dioxazine violet pigment with an acetate or ketone compound and then heating the mixture. The metastable dioxazine violet pigment may be that obtained according to the conventional method, and employable in situ.
Novel catalyst system for trimerization of organic isocyanates
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, (2008/06/13)
A novel catalyst system is described that is useful in the trimerization of organic isocyanates. The system comprises (1) N,N',N"-trisdialkylaminoalkyl-s-hexahydrotriazine and (2) a compound selected from the group consisting of 3,5-bis(N,N-dialkylaminoalkyl)-1,3,5-tetrahydrooxadiazine, 5-(N,N-dialkylaminoalkyl)-1,3,5-dihydrodioxazine and the mixtures thereof.