221 |
Metal complexes as light-absorbing compounds in the information layer of optical data carriers |
US10522476 |
2003-07-15 |
US20060141395A1 |
2006-06-29 |
Horst Berneth; Friedrich-Karl Bruder; Rainer Hagen; Karin Hassenruck; Serguei Kostromine; Christa Kruger; Timo Meyer-Friedrichsen; Rafael Oser; Josef-Walter Stawitz |
Novel metal complexes for optical data carriers which comprise a preferably transparent substrate which may, if desired, have preivously been coated with one or more reflection layers and to whose surface a light-writable information layer, if desired one or more reflection layers and if desired a protective layer or a further substrate or a covering layer have been applied and which can be written on and read by means of blue or red light, preferably laser light, where the information layer comprises a light-absorbent compound and, if desired, a binder, characterized in that at least one such metal complex is used as light-absorbent compound, have been found. |
222 |
Optical information recording medium |
US11268851 |
2005-11-08 |
US20060114804A1 |
2006-06-01 |
Mamoru Uchida; Isao Okitsu; Takuo Kodaira |
An optical information recording medium includes: a substrate having a pre-groove formed thereon; an optical recording layer containing a dye; and a light reflecting layer. The medium has a ratio of a modulation degree at a maximum recording speed to a modulation degree at a minimum recording speed, which is from 1.1 to 1.7. |
223 |
Metal complex dyes for inkjet inks |
US10877163 |
2004-06-25 |
US07041809B2 |
2006-05-09 |
Bradley Leonard Beach; James F. Feeman; Kelly Ann Killeen |
A light-resistant, metal complex dye for inkjet printing comprising a substituted 8-heterocyclic azo-5-aminoquinoline of the following structural formula: |
224 |
Optical recording medium, and, method and apparatus for optical recording and reproducing using optical recording medium |
US11236783 |
2005-09-27 |
US20060035172A1 |
2006-02-16 |
Tatsuya Tomura; Tsutomu Sato; Yasunobu Ueno; Soh Noguchi |
The object of the present invention is to provide an optical recording medium in which a recording material of the optical recording medium has a high solubility in an organic solvent, so that the recording material can be shaped to film by a coating process and the recording material is excellent in light-resistance and stability during the preservation, so that the optical recording medium is applicable to the recordable DVD. For the object, the present invention provides the optical recording medium comprising a substrate and at least a recording medium disposed on the substrate, wherein the recording medium comprises at least one type of formazan-metal chelate dyes. |
225 |
Metal complex dyes for inkjet inks |
US10877163 |
2004-06-25 |
US20050288493A1 |
2005-12-29 |
Bradley Beach; James Feeman; Kelly Killeen |
A light-resistant, metal complex dye for inkjet printing comprising a substituted 8-heterocyclic azo-5-aminoquinoline of the following structural formula: |
226 |
Dye for optical recording medium |
US10247051 |
2002-09-17 |
US20030148216A1 |
2003-08-07 |
Nae-Jen
Wang; Ching-Huang
Chen; Li-Ling
Lin; Chao-Nan
Kuo; Wen-Dar
Liu; Wan-Chun
Chen; Shyh-yeu
Wang |
An optical recording medium dye is described. The optical recording medium dye is an azo metal chelate compound, wherein the azo metal chelate compound comprises the following structure: 1 wherein R1 is a hydrogen atom, a C1-6 straight chain or branched alkyl group, an amino group, an alkylamino group or a tolylamino group; R2 is a hydrogen atom, a hydroxyl group, a halogen atom, an ether group, a C1-6 straight chain or branched alkyl group; R3 is a hydrogen atom, a C1-6 straight chain or branched alkyl group; R4 is a hydrogen atom, a C1-6 straight chain or branched alkyl group or a halogen atom; A3 is a residue forming a heterocyclic ring derivative together with a carbon atom and a nitrogen atom. |
227 |
Optical recording medium |
US786458 |
1997-01-21 |
US5858613A |
1999-01-12 |
Atsushi Monden; Takahiko Suzuki; Emiko Kambe; Masahiro Shinkai; Sumiko Kitagawa |
An optical recording medium which can be recorded and read at a short wavelength (about 635-680 nm) or which can be recorded and read at two wavelengths, the short wavelength and a conventional wavelength (about 780 nm) has a recording layer containing an azo metal complex dye obtained by reacting a metal compound with an azo compound of formula (I) or an azo compound of formula (II). ##STR1## In formula (I), Q.sub.1 is a group of atoms necessary to form an aromatic ring with two C, A is C or a hetero-atom, Q.sub.2 is a group of atoms necessary to form an aromatic ring with two C and A, and Q.sub.3 is a group of atoms necessary to form an aromatic ring with C, N and A, fused to the aromatic ring completed by Q.sub.2. In formula (II), Q.sup.1 is a 8-quinolyl radical and Q.sup.2 is a 2-imidazolyl radical whose nitrogen at the 1-position has active hydrogen. |
228 |
Metallized carbamoylazo dyes |
US882319 |
1997-06-25 |
US5821346A |
1998-10-13 |
Derek D. Chapman; Ramanuj Goswami; Csaba A. Kovacs |
Metallized carbamoylazo dyes having an azo group linking a substituted 3-hydroxypyridine nucleus to a phenyl nucleus are disclosed. The phenyl nucleus has a carbamoyl substituent ortho to the azo group. The dyes are useful in optical recording elements. |
229 |
Metal chelate of a monoazo compound and optical recording medium using it |
US809509 |
1992-01-16 |
US5298608A |
1994-03-29 |
Tetsuo Murayama; Shuichi Maeda; Chiyoko Fukabori; Takumi Nagao |
A metal chelate compound comprising a monoazo compound of the following formula (I): ##STR1## (wherein A is a residue forming a hetero ring together with the carbon atom and the nitrogen atom to which it is bonded, B is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, and X is a hydrogen atom or a cation), and a metal, and an optical recording medium comprising a substrate and a recording layer formed thereon for information to be written in and/or read out by laser, wherein said recording layer contains the metal chelate compound comprising a monoazo compound of the above formula (I) and a metal. |
230 |
Process for coloring high-molecular organic material, and novel metal
complexes of oxime(s) of o-hydroxy benzaldehyde(s) and ketone(s) |
US745033 |
1985-06-13 |
US4639477A |
1987-01-27 |
Georg Cseh; Paul Lienhard |
Process for mass-coloring high-molecular organic material, which comprises using a metal complex of the formulae I and/or Ia ##STR1## in which R is a hydrogen or chlorine atom or a methyl or methoxy group, R.sub.1 is a hydrogen atom, C.sub.1 -C.sub.4 -alkyl or phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, --NO.sub.2, --CONH.sub.2 --CONHR.sub.2 or C.sub.2 -C.sub.5 -N-alkylcarbamoyl, X is --CH.dbd. or --N.dbd., M is a divalent transition metal, and A is phenyl or substituted phenyl and R.sub.2 is alkyl, phenyl or substituted phenyl.The resulting colorations are distinguished by high tinctorial strength and good fastness properties, such as light, weathering and migration fastness properties. |
231 |
Derivatives of azobarbituric acid or salts or complexes thereof |
US734364 |
1985-05-14 |
US4628082A |
1986-12-09 |
Manfred Lorenz; Karl H. Schundehutte |
Azobarbituric acid derivatives characterized in that in their free acid form they have the following tautomeric structure are disclosed: ##STR1## The azobarbituric acid derivatives are characterized in that X and Y rings can each carry one or two substituents from the series comprising .dbd.O, .dbd.S, .dbd.NR.sub.7, --NR.sub.6 R.sub.7, --OR.sub.6, --SR.sub.6, --COOR.sub.6, --CN, --CONR.sub.6 R.sub.7, --SO.sub.2 R.sub.8, ##STR2## alkyl, cycloalkyl, aryl and aralkyl, the total number of the endocyclic and exocyclic double bonds for each of the rings X and Y being three.The new azobarbituric acid derivatives are other than those of azobarbituric acid, azouracil and uracil-5-azobarbituric acid and their salts. The compounds are useful as pigments which pigments are useful for pigmented paints, in printing inks, distempers or emulsion paints, inter alia. |
232 |
8-hydroxyquinoline sulfonic acid-azo chromium complexes |
US484736 |
1983-04-13 |
US4617382A |
1986-10-14 |
Gerhard Back; Fabio Beffa; Arthur Buhler |
The present invention relates to novel chromium complex dyes of the formula ##STR1## wherein Z is hydrogen, chloro, bromo, nitro, lower alkyl or acylamino;L is H.sub.2 O, ammonia, ethanol or ethanolamine;Y is --O--or --COO--;Y' is --O--, --NH--, --N(lower alkyl)-- or --N(phenyl)--;A is ortho-phenylene or ortho-naphthalene which are unsubstituted or substituted by chloro, bromo, cyano, nitro, lower alkyl, lower alkoxy, phenoxy, sulfonamido, substituted sulfonamido, substituted sulfonyl or acylamino; andB is ortho-naphthalene which is unsubstituted or substituted by chloro, acyl, acylamino, lower alkyl, lower alkoxy, sulfonamido, substituted sulfonamido or substituted sulfonyl;where "acyl" is lower alkanoyl, lower alkoxycarbonyl, loweralkylsulfonyl, benzoyl, chlorobenzoyl, methylbenzoyl, nitrobenzoyl, phenoxycarbonyl, phenylsulfonyl or p-methylsulfonyl; substituted sulfonamido and those substituted by lower alkyl, lower hydroxyalkyl, lower alkoxyalkyl, lower cyanoalkyl, cyclohexyl or benzyl; and substituted sulfonyl is lower alkylsulfonyl, lower alkylsulfonyl substituted by hydroxy, chloro or lower alkoxy, chlorophenylsulfonyl, methylphenylsulfonyl, nitrophenylsulfonyl, methoxyphenylsulfonyl, or benzylsulfonyl.These dyes are useful in dyeing and printing materials such as silk, leather, wool and synthetic polyamides with good exhaustion and yielding level dyeings of good fastness properties. |
233 |
Phenyl- or naphthyl-azo-(8-hydroxyquinoline) 1:2-cobalt complex dyes for
leather |
US183892 |
1980-09-04 |
US4431583A |
1984-02-14 |
Gerhard Back |
1:2 Cobalt complex dyes of azo compounds of the formula ##STR1## wherein D is a phenyl or naphthyl radical which is substituted by sulphonic acid groups, halogen atoms, alkyl, alkoxy, nitro, cyano, acylamino or arylazo groups or is unsubstituted, and R is a hydrogen atom, a sulpho group, a halogen atom or a methyl group, and wherein the total number of sulpho groups present is 1 to 3. The dyes are suitable for dyeing polyamide materials such as wool, silk, synthetic polyamides and leather, particularly the latter. The dyes give full brown shades of good covering power with excellent fastness to light. |
234 |
Photographic products and processes employing novel nondiffusible yellow
dye-releasing compounds and precursors thereof |
US484801 |
1983-04-14 |
US4418131A |
1983-11-29 |
Steven Evans |
Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible compound having a releasable yellow dye moiety or precursor thereof, the compound having the formula: ##STR1## wherein: (a) X represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring;(b) Z represents alkyl, substituted alkyl, aryl or substituted aryl;(c) R represents CN or J-L;(d) J represents a bivalent ##STR2## (e) L represents alkyl, substituted alkyl, aryl, substituted aryl, or can be taken together with Z to complete a carbonyl-containing 5- or 6-membered heterocyclic or carbocyclic ring;(f) Z.sup.1 represents the same groups as Z;(g) each CAR independently represents a ballasted carrier moiety capable of releasing the diffusible yellow dye moiety or precursor thereof as a function of development of a silver halide emulsion layer under alkaline conditions;(h) each n is 0 or 1, with the proviso that at least one n is 1;(i) Lig is a monoanionic tridentate ligand; and(j) Me is a polyvalent, hexacoordinate metal ion. |
235 |
Novel metallized dyes, their manufacture and use |
US146973 |
1980-05-05 |
US4318849A |
1982-03-09 |
Arthur Buhler; Hans U. Schutz |
The present invention relates to copper, nickel, chromium or cobalt complexes of azo or azomethine dyes which contain a group of the formula--N.dbd.N.dbd.Ar).sub.m-1 Z--R.sub.2 --Uwherein Z is a bridge member of the formula ##STR1## wherein R.sub.1 is hydrogen or a low molecular alkyl group, R.sub.2 is a low molecular alkylene radical or an arylene radical, Ar is an arylene radical, m is 1 or 2 and U is a sulpho or carboxy group. |
236 |
Photographic products and processes employing novel dye developer
compounds |
US80753 |
1979-10-01 |
US4250238A |
1981-02-10 |
Brian D. Baigrie; Joseph Bailey; Linda G. Johnston; Miroslav V. Mijovic |
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel dye developer compound having a dye moiety such as an arylazopyrazolotriazole. The compound contains:(a) a nitrogen atom in a metal chelating location in at least one of the rings attached to the azo group;(b) in the ortho position of the arylazo moiety a metal chelating group (or a salt thereof or a hydrolyzable precursor thereof), and(c) a silver halide developer moiety.The dye developer is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed dye developer transfer image of excellent stability. |
237 |
Photographic products and processes employing heterocyclic azo dye
developer compounds |
US16998 |
1979-03-02 |
US4248956A |
1981-02-03 |
Brian D. Baigrie; Joseph Bailey; Linda G. Johnston; Miroslav V. Mijovic |
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel dye developer compound having a dye moiety such as an arylazo-pyrazolotriazole. The compound contains:(a) a nitrogen atom in a metal chelating location in at least one of the rings attached to the azo group;(b) in the ortho position of the arylazo moiety a metal chelating group (or a salt thereof or a hydrolyzable precursor thereof), and(c) a silver halide developer moiety.The dye developer is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed dye developer transfer image of excellent stability. |
238 |
Unsymmetrical 1:2-chromium complexes containing an azo and an azomethine
bond |
US780669 |
1977-03-23 |
US4212801A |
1980-07-15 |
Hans Baumann |
2:1-chromium complex dyes of the formula: ##STR1## in which: A is the radical of a carbocyclic diazo component with a complex-forming hydroxy or carboxy group adjacent to the azo bridge;B is the radical of a carbocyclic, heterocyclic or open-chain coupling component with a complex-forming hydroxy or amino group adjacent to the azo bridge;D is the radical of a carbocyclic aldehyde with a complex-forming hydroxy group adjacent to the azomethine bond;E is an aliphatic radical with a complex-forming amino group; and n is the number of carboxy groups not participating in the formation of the complex and the sulfonic acid groups.The dyes are eminently suitable for dyeing natural and synthetic polyamides, clear shades with good fastness properties being obtained. |
239 |
Nondiffusible 6-arylazo-2-amino-3-pyridinol dye-releasing compounds |
US3836 |
1979-01-16 |
US4204993A |
1980-05-27 |
Derek D. Chapman |
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 6-arylazo-2-amino-3-pyridinol dye moiety or precursor thereof. The compound contains in the ortho position of the arylazo moiety a ballasted carrier moiety attached thereto either through a sulfonamido linking group or through the oxygen of a ##STR1## which said ballasted carrier moiety contains, the ballasted carrier moiety being capable of releasing the diffusible 6-arylazo-2-amino-3-pyridinol dye or precursor thereof under alkaline conditions. The dye is transferred imagewise to an image-receiving layer, where it is contacted with metal ions to form a metal-complexed 6-arylazo-2-amino-3-pyridinol dye transfer image of excellent stability. |
240 |
Photographic products and processes employing novel nondiffusible
pyridylazonaphthol dye-releasing compounds |
US927190 |
1978-07-24 |
US4165238A |
1979-08-21 |
Richard B. Anderson; Elaine H. Hoffmeister; Richard A. Landholm |
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 2-(5-nitro-2-pyridylazo)-1-naphthol dye moiety. The compound contains a ballasted carrier moiety which is capable of releasing the diffusible azo dye under alkaline conditions. The dye is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability. |