Matches 151 - 200 out of 356 < 1 2 3 4 5 6 7 8 >


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5006662 Manufacturing process for a naphthotriazole stilbene fluorescent agent  
2-(stilbyl-4")-(naphtho-1',2':4,5)-1,2,3-triazole-2"-sulfoni c acid is obtained by diazotizing p-aminostilbene sulfonic acid, coupling the resulting diazonium salt with Tobias acid and then...
5003076 Benzotriazole derivatives and chiral derivatization reagents for carboxylic acids thereof  
Novel fluorescent chiral derivatization reagent containing a compound of the formula: ##STR1## being useful for the determination of carboxylic acid enantiomers with high sensitivity, which are...
4999433 Process for the preparation of benzotriazole derivatives  
Hologenated 2-(2-hydroxyphenyl)-2H-benzotriazoles of the formula ##STR1## in which X is halogen, R1 is hydrogen, C1 -C12 alkyl, C5 -C6 cycloalkyl, phenyl or phenyl-C1 -C4 alkyl and R2 is C1 -C12...
4978787 Benzotriazoles, and their production and use  
A compound of the formula: ##STR1## wherein R is a C1 -C5 alkyl group, a C3 -C5 alkenyl group, a C3 -C5 alkynyl group or a C3 -C7 cycloalkyl group, which is useful as a herbicide.
4943637 Method for preparing 2-phenylbenzotriazoles  
This invention relates to a method for preparing a 2-phenylbenzotriazole of formula I, ##STR1## (wherein R1 represents hydrogen or chlorine atom, a lower alkyl group having a carbon number of 1 to...
4943574 (1H-azol-1-ylmethyl) substituted benzotriazole derivatives and pharmaceutical compositions containing them  
(1H-azol-1-ylmethyl)substituted benzotriazole derivatives, compositions containing the same, and methods of treating estrogen dependent disorders.
4942248 Tertiary-alkyl esters of 1H-benzotriazole-1-carboxylic acids  
Tertiary-butyl and tertiary-amyl esters of 1H-benzotriazole-1-carboxylic acids are useful blocking agents for blocking the amino or imino groups of amino acids. The six-membered ring of the...
4940812 5-substituted aminophenols  
Process for the introduction of functional or functionalizable substituents para to the amino group in 2-aminophenols and 3-aminophenols. The process proceeds in one step, with substitution...
4937348 Process for preparing 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotriazolylphenols)  
A process is provided for preparing 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotriazolyl-phenols) having formula III: ##STR1## wherein: R is selected from the group consisting of alkyl having from...
4937349 Process for the preparation of 3-[2'H-benzotriazol-(2')-yl]-4-hydroxy-benzenesulfonic acids and the salts thereof  
There is disclosed a process for the preparation of 3-[2'H-benzotriazol-(2')-yl]-4-hydroxybenzenesulfonic acids and salts thereof of formula ##STR1## wherein R is hydrogen or chlorine, R1 is...
4921966 Process for the preparation of liquid mixtures of alkylated 2-(2-hydroxyphenyl)benzotriazoles  
A process for the preparation of a mixture of 2-(2-hydroxyphenyl)benzotriazole which is liquid at room temperature by alkylating 2-(2-hydroxy-5-methylphenyl)benzotriazole with a C8 -C14 α-olefin...
4908293 Superhigh contrast negative type silver halide photographic material  
A superhigh contrast negative type silver halide photographic material, comprising a support having provided thereon at least one silver halide emulsion layer, wherein the emulsion layer or at...
4904800 Intermediates for the production of benzotriazoles  
A compound of the formula: ##STR1## wherein R is a C1 -C5 alkyl group, a C3 -C5 alkenyl group, a C3 -C5 alkynyl group or a C3 -C7 cycloalkyl group, which is useful as a herbicide.
4902787 Method for producing lightfast disperse dyestuffs containing a build-in photostabilizer [molecule] compound  
A method of producing a UV lightfast disperse dyestuff comprising selecting a disperse dyestuff having predetermined chromophoric groups, selecting a photostabilizer compound, designing a hybrid...
4898944 Precursors for the preparation of water-soluble triphendioxazine dyestuffs  
Precursors for the preparation of fiber-reactive triphendioxazine dyestuffs correspond to the general formulas: ##STR1## in which Y' is a vinyl, a beta-hydroxyethyl or an ethyl group which...
4895954 Precursors for synthesis of triphendioxazine dyestuffs  
Water-soluble triphendioxazine compounds which have fiber-reactive properties as dyestuffs, which afford deep and fast dyeings on fiber materials, such as wool and, in particular, cellulose, and...
4891424 4-aralkyl-2-nitro-2'-hydroxy-3',5'-dialkyl (or cumyl)-azobenzenes  
4-Aralkyl-2-nitro-2'-hydroxy-3',5'-dialkyl (or cumyl)-azobenzenes are made by coupling the corresponding diazotized 4-aralkyl-o-nitroaniline with the corresponding phenol. These azobenzene...
4859726 Bis-benzotriazolyl compounds and polymeric materials stabilized therewith  
Disclosed are bis-benzotriazolylphenol compounds having the formula ##STR1## wherein R1 and R2 each is a 2-benzotriazolyl radical; R3 and R4 each is hydrogen, alkyl, aralkyl, alkoxy, aryl,...
4857440 Photographic material and process (B)  
Photographic compound (A) capable of releasing a photographically useful group by means of intramolecular nucleophilic displacement exhibits increased resistance to hydrolysis when the compound...
4853471 2-(2-Hydroxyphenyl)-benztriazoles, their use as UV-absorbers and their preparation  
The novel UV-absorbers are compounds of the formula ##STR1## in which R1 is, for example, hydrogen, n is one of the numbers 1 or 2 and R2 is an appropriate monovalent or divalent radical, for...
4851542 N1 -substituted 1H-benzytriazole hydroxyethyl sulfone compounds, a process for their preparation and their use for the preparation of dyestudds  
N1 -substituted 1H-benzotriazole hydroxyethyl sulfone compounds, a process for their preparation and their use for the preparation of dyestuffs. Compounds of the general formula ##STR1## in which...
4847360 Adhesive active finish for reinforcing members and related methods  
Adhesive active finish compositions for synthetic reinforcing members to bond the latter to vulcanizable rubber and reinforcing members for vulcanizable rubber. The adhesive composition comprises...
4845227 Aromatase inhibitors from azoles  
This invention provides azole derivatives, their pharmaceutical formulations, and their use in methods of inhibiting aromatase and treating or preventing estrogen-dependent diseases in mammals.
4845180 Ultraviolet light absorbing compounds, compositions and methods for making same  
An ultraviolet absorbing composition comprising a polymer of at least one diisocyantate, at least one polyol and at least one hydroxyl functional, polymerizable ultraviolet absorbing monomer....
4835284 Method for preparing 2-phenylbenzotriazoles and 2-phenylbenzotriazole-N-oxides  
This invention relates to a method for preparing 2-phenylbenzotriazoles having the formula I, ##STR1##
4830954 Color photographic negative film  
The sensitivity of color photographic negative films may be increased without loss of color quality or sharpness by applying at least one panchromatically sensitized, highly sensitive and...
4818273 Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides, compositions containing them, and their utility as herbicides  
Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonamides, e.g., 5,7-dimethyl-N-(2,6-dichlorophenyl)-1,2,4-triazolo[1,5-a]pyr imidine-2-sulf onamide and their agriculturally acceptable salts are...
4812575 Process for the preparation of benozotriazoles and their polymers, and 2(2-hydroxy-5-isopropenylphenyl)2H-benzotriazole produced thereby  
The compound 2(2-hydroxy-5-isopropenylphenyl)2H-benzotriazole (2H5P) is produced by azo coupling of o-nitrophenyl diazonium chloride with p-hydroxyacetophenone, subjecting the resulting isolated...
4803254 Vinylsilylalkoxy arylbenzotriazole compounds and UV absorbing compositions made therefrom  
Vinylsilylalkoxy arylbenzotriazol monomers such as 2-[3'-t-butyl-5'-(3-"-dimethylvinylsilylpropoxy)-2'-hydroxy- phenyl]-5-meth oxybenzotriazole are disclosed. These monomers can be incorporated in...
4791211 Process for the production of 2-stilbylnaphthotriazole optical bleaches  
An improved process for the production of 2-stilbylnaphthotriazole optical bleaches which involves diazotizing aminostilbene 2-sulfonic acids, coupling the thus formed diazonium salt with...
4791206 Triazole-organodithiophosphate reaction product additives for functional fluids  
New reaction products, useful as additives for functional fluids, are obtained by reacting, at elevated temperature, (A) a triazole having the formula IA or IB: ##STR1## wherein R7 is hydrogen or...
4788292 Perfluoroalkyl substituted benzotriazoles  
Compounds of the formula ##STR1## wherein R1, R2, R3 and R4, independently of one another, represent hydrogen, hydroxy or halogen or are alkyl, alkoxy, alkanoyloxy, or alkanoylamino groups which...
4785063 Copolymerizable 2-(2'-hydroxy-5'-acryloyloxyalkyl)-2H-benzotriazoles  
Compounds of the formula I ##STR1## wherein R1 is hydrogen, chlorine, lower alkyl or lower alkoxy, R2 is hydrogen or alkyl, R3 is lower alkenoyl, X and Y are independently --O-- or --NH--, m is 0,...
4775707 Coatings materials stabilized against the action of light  
Blocked benzotriazoles of the formula I or II ##STR1## where x is 1 or 2, R1 in the case of x=1 and in the formula II is an acyl group of the formula --CO--R5, a sulfonyl group of the formula...
4770667 Use of substituted 2-(2'-hydroxyaryl)-2H-benzotriazolesulfonates as photostabilizing agents for natural and synthetic fibres  
A method for protecting synthetic and natural fibres against phototendering. The method comprises treating the fibres with a substituted benzotriazolesulfonate of the following formula: ##STR1##...
4769383 Dioxonaphthotriazoles having antiallergic activity  
A compound of formula (I): ##STR1## or a pharmaceutically acceptable salt thereof, wherein R1 is a hydrogen atom or a C1-6 alkyl group, R2, R3 and R4 are the same or different and are selected...
4748105 Rapid bleach fixing of a silver halide color photographic light-sensitive material using an organic acid ferric complex  
A method of processing of a silver halide color photographic light-sensitive material is disclosed. The color photographic material to be processed comprises a support and photographic component...
4745194 Ultraviolet light absorbers having two different chromophors in the same molecule  
Ultraviolet light absorbing compounds having two different chromophors in the same molecule, particularly the benzotriazole chromophor and either the dihydroxybenzophenone or dihydroxyacetophenone...
4743521 Electrophotographic material with mxiture of charge transport materials  
An electrophotographic recording material contains, as charge carrier-transporting compounds in the photoconductor layer, a mixture of one or more compounds of the formula ##STR1## and one or more...
4741987 Photopolymerizable composition including benzotriazole carboxylic acid  
The composition of this invention comprises: (a) a thermoplastic organic polymer, (b) a non-gaseous ethylenically unsaturated compound containing at least two terminal ethylenic groups capable of...
4740454 Silver halide photographic material  
A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains which have a diameter...
4734353 Methods using oximes for processing a silver halide photographic light-sensitive material  
A method for processing a silver halide photographic light-sensitive material comprising a support having thereon a light-sensitive silver halide emulsion layer having associated therewith a...
4727158 5-Higher alkyl substituted-2H-benzotriazoles  
5-tert-Octyl-2-(2-hydroxy-3,5-di-alpha-cumylphenyl)-2H-benzo triazole and related 2H-benzotriazoles substituted on the 5-position of the benzo ring by a higher alkyl group such as tert-octyl or...
4720451 Silver halide color reversal light-sensitive material  
A silver halide color reversal light-sensitive material comprising a support having thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one...
4717648 Process for processing a color reversal photographic light-sensitive material  
A process for processing a silver halide color reversal photographic light-sensitive material is disclosed, which comprises developing an imagewise exposed silver halide color reversal...
4716234 Ultraviolet absorbing polymers comprising 2-(2'-hydroxy-5'-acryloyloxyalkoxyphenyl)-2H-benzotriazole  
Ultraviolet light absorbing compositions comprising 2-(2'-hydroxy-5'-acryloyloxyalkoxyphenyl(-2H-benzotrizoles, and copolymers thereof with one or more other monomers copolyermizable therewith,...
4710262 Photopolymerizable composition containing carboxy benzotriazole  
Improved adhesion to a substrate is obtained employing a photopolymerizable composition containing a carboxy benzotriazole.
4709959 Sliding and lifting roof  
Sliding and lifting roof for vehicles having a rigid cover, which in a closed position closes a roof opening in a fixed roof surface, and therefrom, can be selectively tilted upwardly so as to...
4709041 2-(formylphenyl) benzotriazole intermediates  
Compounds of the formula ##STR1## wherein R is hydrogen or a hydroxy-protecting group are disclosed. The compounds are versatile intermediates which can be derivatized by reaction of the formyl...
4695405 Process for quenching fluorescence, and new cationic or amphoteric aromatic nitro compounds  
To quench the fluorescence produced by anionic fluorescent brighteners use is made of virtually colorless, water-soluble cationic or amphoteric compounds which contain in the molecule at least one...

Matches 151 - 200 out of 356 < 1 2 3 4 5 6 7 8 >