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Patent Searching and Data


Matches 901 - 950 out of 5,682

Document Document Title
WO/2000/051967A1
This invention relates to very specific oxyalkylene-substituted aminophenol compounds as intermediates for the production of poly(oxyalkylene)-substituted xanthene (or other type) colorants. Such an inventive intermediate compound is pro...  
WO/2000/050525A1
Novel water soluble toners for use in ink jet printers, which are stable in water, and which have an acid number of greater than about 175, are provided. The toner, which is preferably fluorescent, is comprised of a novel, cycloaliphatic...  
WO/2000/047550A1
Asymmetrical bis-styrylbiphenyl compounds of formula (1) wherein R¿1? to R¿6? are as defined in claim 1, are excellently suitable as optical brighteners, for example for polyesters in the spinning melt.  
WO/2000/046336A1
A fluorescent whitening agent comprising a mixture of compounds of formulae (Ia), (Ib) and (Ic), in which the -SO¿3?R groups are in the meta and/or para position, and wherein R and M, independently of each other are H, Na, Li, K, Ca, Mg...  
WO/2000/046205A1
This invention relates to colorants comprising naphthalimide base groups with specific water-solubilizing pendant moieties attached. These pendant moieties are based upon aryloxy-poly(oxyalkylene) groups which provide the desired solubil...  
WO/2000/040657A1
Hydrazam imides of general formula (I), wherein R?1¿ and R?2¿ are each independently of the other (a) hydrogen or nitro, at least one of which radicals being nitro, or R?1¿ and R?2¿ together are (b) one of the radicals: (a), (b), (c)...  
WO/2000/032697A1
A dye mixture comprises (A) at least one monoazo dye of formula (I) wherein X¿A? is C1, Br, I, CN or NO¿2?; R¿A? is C¿1-4?alkyl or NHCOQ, where Q is C¿1-4?alkyl; and each of R¿A??1¿ and R¿A??2¿, independently, is C¿1-4?alkyl, C...  
WO/2000/031040A1
Process for preparing a bis (hydroxymethyl) perylenetetra carboximide compound by reacting perylene-3,4,9,10-tetracarboximide with formaldehyde. The bis (hydroxymethyl) perylenetetra carboximide can be isolated or further reacted in a on...  
WO/2000/022048A1
A dye mixture comprises: a) at least one pyrroline type dye of formula (I), wherein R?1¿ is H, C¿1-20?alkyl or C¿2-20?alkenyl; and D is aryl; and b) at least one anthraquinone type dye of formula (II), wherein R¿B? is (CH¿2?) ¿n?OR...  
WO/2000/014814A1
An electro-luminescent arrangement comprising a substrate, an anode, an electro-luminescent element and a cathode, whereby at least one of the two electrodes is transparent in the visible spectral range and the electro-luminescent elemen...  
WO/2000/007040A1
A photochromic ophthalmic lens and a process for its preparation are disclosed. The lens comprises a substantially transparent substrate having a lenticular shape and, at least one film adhering to at least one surface of said substrate....  
WO/2000/003034A2
The subject invention provides compounds useful as fluorogenic substrates for the hydrolytic enzymes. Upon hydrolysis of the hydrolyzable group, a halo-pyrene substituted molecule is developed which is highly fluorescent, water soluble a...  
WO/1999/067200A1
The following amminium salt or diimmonium salt compounds which are appropriate for light recording media being excellent in record reproduction characteristics and storage stability, infrared cut filters being highly tolerant against lig...  
WO/1999/055707A1
The 2,4,5,7-tetraaminopyrimido[5,4-g]pteridine of formula (I) characterized by a hue-angle $i(h) of not less than 98, processes for preparing the pteridine I of the invention, novel, insoluble 2,4,5,7-tetraaminopyrimido[5,4-g]pteridine s...  
WO/1999/054332A1
Preparation of alkylthio and/or arylthio-substituted diketo-diaryl-pyrrolopyrroles (DPPs) of formula (Ia) and dithio-bridged bis-diketo-diaryl-pyrrolopyrroles (bis-DPPs) of formula (Ib), in which in formula (Ia) G is phenyl substituted b...  
WO/1999/052909A2
Dibenzonaphthyrone of formula (I) wherein A¿1? and A¿2? independently of each other are unsubstituted or mono- to tetra-substituted o-C¿6?-C¿18?arylene, with the proviso that formula (I) does not represent a dibenzonaphthyrone of for...  
WO/1999/051702A1
Luminescent compounds, reactive intermediates used to synthesize luminescent compounds, and methods of synthesizing and using luminescent compounds. These compounds may be based on squaric, croconic, and rhodizonic acid, and their analog...  
WO/1999/050358A1
Colorants as sensitizers for energy conversion processes play a decisive role in solar applications. Their purity substantially influences targeted global efficiency. Known colorants cannot be supplied with constant purity quality. Distu...  
WO/1999/040655A1
Use of spiro compounds of formula (I), where K?1¿ and K?2¿ are, independently of one another, conjugated systems, as a laser dye.  
WO/1999/040051A1
The invention relates to novel spirans of formula (I).  
WO/1999/020688A1
A durable colored article having fluorescent properties comprises a substantially solventless polyvinyl chloride matrix, a thioxanthene fluorescent dye, and a secondary or tertiary hindered amine light stabilizer having a molecular weigh...  
WO/1999/018914A2
The invention relates to the application of indanones of formula (I) for dying fibers containing keratin, wherein R?1¿ and R?2¿, each independent of one another, represent a hydrogen atom, a halogen atom, a (C¿1?-C¿4?)-alkyl group, (...  
WO/1999/017726A1
The invention concerns a cosmetic composition for treating keratin fibres comprising in an appropriate support for keratin fibres: (a) at least an oxidoreductase type enzyme with 2 electrons in the presence of at least a donor for said e...  
WO/1999/016833A1
Compounds of formula (I) wherein D is the rest of a diazo component selected from the group having formulae (a), (b), (c) wherein A is OH or NH¿2?; R¿1? is independently H, C¿1-4?alkyl; R¿2? is hydrogen, C¿1-4?alkyl, C¿1-4?alkoxy, ...  
WO/1999/015140A1
The invention concerns a ready-to-use composition for oxidation dyeing of keratin fibres, and particularly human keratin fibres such as hair comprising, in an appropriate medium for dyeing, at least an oxidation base, choline oxidase, an...  
WO/1999/015139A1
The invention concerns a ready-to-use oxidation dyeing composition for dyeing keratin fibres, and particularly human keratin fibres such as hair comprising, in an appropriate medium for dyeing, at least an oxidation base, sarcosine oxida...  
WO/1999/013007A1
The present invention relates to a process for coloration of a high molecular weight material by admixing said high molecular weight organic or inorganic material, preferably high molecular weight organic material, prior to processing wi...  
WO/1999/007793A1
Various classes of dyes are provided having acid, ester or amide groups for covalent linking to biomolecules. The dyes may be prepared by use of a compound of formula (I) where R?1¿ comprises a linker and a carboxy including acid, salt,...  
WO/1999/003836A1
The invention concerns novel monobenzene oxidation bases comprising at least a cationic group Z, Z being selected among the aliphatic chains containing at least a quaternized unsaturated cycle, their use for oxidation dyeing of keratin f...  
WO/1998/054150A1
1,8-Naphthalimide derivatives of Formula (I) are useful as fluorescent dyes, wherein R?1� and R?2� are each independently selected from the group consisting of branched alkyl groups containing 7-8 carbon atoms and alkyloxyalkyl group...  
WO/1998/050393A1
A photosensitizer complex of formulae (Ia) MX�3?L�t? or (Ib) MXYL�t? in which M is a transition metal selected from ruthenium, osmium, iron, rhenium and technetium, preferably ruthenium or osmium; each X is a co-ligand independentl...  
WO/1998/047472A1
The invention relates to the use isatin derivatives of formula (I), wherein R?1� and R?2� independently means a hydrogen atom, a halogen atom, a hydroxy group, a (C�1?-C�4?)-alkyl, a hydroxy(C�1?-C�4?)-alkyl, a tert-amino(C...  
WO/1998/045281A1
Red colouring hyperchromic compounds having general formula (I), where R?1� is H, NR?2�R?3�, OR?4�, SR?4� or R?7� wherein R?2� and R?3� are alkyl or carbocyclic groups or together with the nitrogen to which they are attac...  
WO/1998/043082A1
The invention relates to compounds which are suitable especially for detecting and separating compounds containing phosphoric acid esters. The inventive compounds comprise at least one chelating agent, at least one central atom or ion co...  
WO/1998/038976A1
The invention relates to means for dying or coloring keratin fibers, specially human hair, which contain a compound of formula (I) as a direct dye, wherein R?1� stands for a C�1-4?-alkyl or hydroxyalkyl group or a C�5-7?-cycloalkyl...  
WO/1998/035746A1
The process comprises the steps of continuously recirculating a fluid aqueous suspension of the water-insoluble particles between a filtration system (2) and a suspension reservoir (1); continously conducting ultrafiltration of the recir...  
WO/1998/034988A1
Cyanine dyes which have high solubilities in solvents having high evaporation rates and are stable against light, thus being improved in productivity and capable of realizing optical recording media having excellent light resistance, par...  
WO/1998/033866A1
Composition comprising a solid organic support material to which either directly or via a bridging group, are covalently linked fluorescent host chromophores and fluorescent guest chromophores, wherein the fluorescence emission spectrum ...  
WO/1998/033862A1
A composition comprising (a) an effective amount of a guest chromophore embedded in a matrix of a host chromophore, or (b) a host chromophore and an effective amount of a guest chromophore both embedded in a polymer matrix, wherein the a...  
WO/1998/033865A1
A composition comprising a solid organic support material to which are either directly, or via a bridging group, covalently linked fluorescent chromophores, characterized in that the chromophores are selected from the group consisting of...  
WO/1998/033864A1
Solid-state fluorescent composition comprising at least one host chromophore selected from the group consisting of a benzo[4,5] imidazo[2,1-a]isoindol-11-ones and an effective amount of at least one guest chromophore, and if desired a po...  
WO/1998/033863A1
Preparation of a solid fluorescent composition comprising (1) mixing a host chromophore and an effective amount of a pigment precursor in a solvent, then generating a pigment as guest chromophore in situ from the pigment precursor, and, ...  
WO/1998/032802A1
Compounds of formula (I): A(B)�x? wherein x is an integer from 1 to 8; A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, pht...  
WO/1998/029399A1
The invention relates to ionic compounds in which the anionic load has been delocalized. A compound disclosed by the invention includes an anionic portion combined with at least one cationic portion M?+m� in sufficient numbers to ensur...  
WO/1998/029388A1
The invention relates to ionic compounds in which the anionic load has been delocalized. A compound disclosed by the invention is comprised of an amide or one of its salts, including an anionic portion combined with at least one cationic...  
WO/1998/029877A1
Disclosed is a proton conductor in liquid form, comprised of a mixture of the following components: (a) a salt combined with a nitrogenated base along with an acid, according to formula (I), wherein Z�1?, Z�2?, Z�3?, and Z�4?, wh...  
WO/1998/029389A1
The invention is related to ionic compounds, derivatives of malononitrile, in which the anionic load has been displaced. An ionic compound disclosed by the invention includes an anionic portion combined with at least one cationic portion...  
WO/1998/029396A1
The invention relates to ionic compounds in which the anionic load has been displaced, and the uses of these compounds. A compound disclosed by the invention comprises an anionic portion combined with at least one cationic portion M?+m...  
WO/1998/029358A2
Disclosed is a method for grafting a polymer onto the surface of a carbonate material with carboxyl, amine, and/or hydroxyl functions on its surface. Said material is placed in suspension in a solution including the polymer to be grafted...  
WO/1998/023690A1
The present invention recites a method comprising reacting in a solvent in the presence of a base a) at least one diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum...  

Matches 901 - 950 out of 5,682