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:
Compounds of formulaA(B).sub.x, (I),whereinx is an integer from 1 to 4,A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, isoindolinone, isoindoline, dioxazine, phthalocyanine or azo series, which radical contains x N-atoms attached to B, preferably with at least one directly adjacent or conjugated carbonyl group,B is a group of formula ##STR1## and, if x is 2, 3 or 4, may also be one, two or three hydrogen atoms. The symbols Q, R.sub.1, R.sub.2, R.sub.3, R.sub.4, X, Y, Z, m and n, are as defined in claim 1. These carbamate group-containing soluble chromophores am distinguished by outstanding solid state fluorescence in the UV range as well as the by ease with which they can be converted to the corresponding pigments in the substrate in which they are incorporated.
摘要:
The novel copper phthalocyanine dyestuffs of the formula (I) ##STR1## in which CuPc represents a copper phthalocyanine radical,W represents branched or straight-chain C.sub.9-16 -alkylene,a represents 2 to 4,b represents 0 to 2, andthe sum of a and b is 3 to 4,are suitable for dyeing and printing cellulose-coating materials and for producing printing inks, in particular for ink-jet printing systems.
摘要:
A silver halide photographic material having at least one silver halide light-sensitive emulsion layer on at least one side of a support, wherein said silver halide emulsion layer comprises tabular silver halide grains having a grain thickness of 0.3 .mu.m or less and accounting for at least 50% of the total projected area, and a phthalocyanine blue pigment having a maximum absorption wave length of from 640 to 700 nm is present in said silver halide emulsion layer and/or in another hydrophilic layer of the photographic material.
摘要:
A colorant for natural or synthetic resinous or polymeric materials, having the formula A--[SO.sub.2 --N(R.sub.2)--Y].sub.1-4 ; wherein: R.sub.2 is selected for example from hydrogen, methyl, cyclohexyl, phenyl or Y; A is a nonionic metallophthalocyanine chromophore which can be substituted for example with halogen, alkyl, alkoxy, alkylthio, or aryloxy; Y is a poly(oxyalkylene) moiety containing at least three monomeric units or mixtures thereof of the formula (--RO--) wherein each R is straight or branched alkylene of 2-4 carbons or mixtures thereof, up to about 20 mole percent of said monomeric units may be connected by one or more linking groups such as alkyleneoxy, --NH--, or --NHCONH--, and wherein Y can be terminated by hydrogen, or by at branch subsituents, containing 1-3 groups or moieties selected from alkyl, cycloalkyl, acyl, or aryl; wherein any of the above recited hydrocarbon groups, moieties or substituents may themselves be substituted with up to four substituents selected, for example, from alkyl, halogen, mercapto, alkoxycarbonyl, hydroxy, alkoxy, or the like; and wherein each aliphatic hydrocarbon portion or moiety of the groups, moieties or substituents recited above contains from 1-20 carbons.
摘要:
Near infrared absorbers which have a molecular extinction coefficient of 200,000 or more and are represented by the formula (I) ##STR1## wherein each of Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.5, Y.sup.6, Y.sup.7 and Y.sup.8 is hydrogen, an alkyl group, alkoxyl group or alkylthio group; each of A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5, A.sup.6, A.sup.7 and A.sup.8 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:
A naphthalocyanine derivative having as substituents at least one group of a formula: SR.sup.1 wherein R.sup.1 is --(CR.sup.2 R.sup.3).sub.x SiR.sup.4 R.sup.5 R.sup.6, in which R.sup.2 to R.sup.6 are H, alkyl groups, etc. is excellent in solubility in saturated hydrocarbon solvents and in absorption of semiconductor laser lights and thus, is suitable for producing optical recording media.
摘要:
Metal-containing or metalfree, monosubstituted or disubstituted phthalocyanines I which have one or two of the following radicals R as substituents on their benzene rings: R=bromine, cyano, C.sub.1 -C.sub.3 -alkyl, n-butyl, i-butyl, C.sub.5 -C.sub.20 -alkyl, C.sub.5 -C.sub.10 -cycloalkyl, fluorinated C.sub.1 -C.sub.6 -alkyl, C.sub.6 -C.sub.20 -aryl, XR.sup.1, where X is oxygen, sulfur, selenium, tellurium or imino (NH) and R.sup.1 is C.sub.1 -C.sub.6 -alkyl, fluorinated C.sub.1 -C.sub.6 -alkyl or C.sub.6 -C.sub.20 -aryl, or Si(R.sup.2).sub.3, where R.sup.2 is C.sub.1 -C.sub.6 -alkyl, each and every substituted benzene ring being substituted by only one R radical, are useful in Laser-optical recording materials.