Matches 201 - 250 out of 356 < 1 2 3 4 5 6 7 8 >


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4683071 Benzotriazole mixtures, processes for producing them, and their use as metal passivators  
Mixtures of the compounds of the formulae I and II ##STR1## are metal passivators for functional fluids, such as hydraulic fluids and metal-working fluids in the form of aqueous...
4681905 Stabilizer compositions for synthetic resins imparting improved light stability  
Stabilizer compositions for synthetic resins are provided, improving the resistance of the resin to deterioration when exposed to ultraviolet light, comprising a 2,2,6,6-tetramethylpiperidyl...
4675352 Liquid 2-(2-hydroxy-3-higher branched alkyl-5-methyl-phenyl)-2H-benzotriazole mixtures, stabilized compositions and processes for preparing liquid mixtures  
Liquid 2-(2-hydroxy-3-higher branched alkyl-5-methylphenyl)-2H-benzotriazole mixtures are prepared by alkylating 2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole with a straight chain alkene or with...
4670377 Silver halide photographic light-sensistive material  
A silver halide photographic light-sensitive material comprising a support bearing thereon a photographic layer comprising a light-sensitive silver halide emulsion layer and a non-light-sensitive...
4668235 Use of substituted 2-(2-hydroxyaryl)-2H-benzotriazolesulfonates as photostabilizing agents for natural 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##...
4668611 Color photographic light-sensitive material  
A color photographic light-sensitive material comprising a support having thereon, in sequence: (1) a blue-sensitive silver halide emulsion layer containing, dispersed in the emulsion using a...
4668278 Benzotriazoles, and their production and use 4-halophenyl-tetrahydrobenzotriazloes as herbicides  
A compound of the formula: ##STR1## wherein R is a hydrogen atom, a C1 -C4 alkoxy group, a C1 -C4 alkenyloxy group, a C3 -C4 alkynyloxy group, a C1 -C4 alkylthio group, a...
4663462 Substituted phenoxy-aminopropanol derivatives  
Phenoxy-aminopropanol derivatives of the formula ##STR1## wherein R is lower alkyl, X is oxygen or sulfur, n is the integer zero or 1, Y is methylene, ethylene or propylene or, when n is zero, Y...
4647563 Heterocyclic compounds  
Compounds of the formula ##STR1## wherein Het is ##STR2## n is an integer from 1 to 4, inclusive, preferably 2 or 3, R1 is H or acyl, R2 is H, R1 O, --NHSO2 R7, --NHCOR8, --NHCONHR8, --NH--CH2...
4642350 Novel process for preparation of benzotriazoles using aryldiols and quinones  
Process for preparing 2-(2'-hydroxyphenyl)-benzotriazoles of the formula ##STR1## from 2-nitro-2'-hydroxyazobenzenes of the formula ##STR2## which comprises reducing a 2-nitro-2'-hydroxyazobenzene...
4639408 Process for image formation comprising a heating step  
A process for forming an image comprising a heating step is described, wherein a photographic material is heated in the presence of a compound represented by formula (I) ##STR1## wherein X...
4629683 Processing silver halide photographic material with blocked agent and hydroxylamine  
A method of processing a photographic material which contains a light-sensitive silver halide emulsion layer having associated therewith a blocked photographic agent capable of releasing a...
4611061 2'-hydroxy-5'-(hydroxyalkyl)phenyl-2H-benzotriazoles  
The compounds 2'-hydroxy-5'-(hydroxyalkyl)phenyl-2H-benzotriazoles are useful as intermediate alcohols in the preparation of corresponding 2'-hydroxy-5'-acrylyloxyphenyl-2H-benzotriazole monomers,...
4610994 1,2,3-triazole anticonvulsant drugs  
Anticonvulsant compositions comprise as the active ingredient a compound selected from the group consisting of those of the formulae: ##STR1## wherein R1 is phenyl, 4-pyridyl, 3-pyridyl, or...
4581150 Zwitterionic quaternary ammonium sulfonates and sulfates and lubricants and fuels containing same  
Zwitterionic quaternary ammonium sulfates, and sulfonates are provided as new compounds and as highly effective additives to lubricants and liquid fuels. They have a variety of desirable effects,...
4581367 1-phenyl-2-(heterocyclyl-alkyl-amino)-ethanols  
Compounds of the formula wherein Het is a heterocycle; n is an integer from 1 to 4, inclusive, preferably 2 or 3; R1 is H or acyl; R2 is H, R1 O, --NHSO2 R7, --NHCOR8, --NHCONHR8, --NH--CH2 --C6...
4560694 Fungicidal alkylene(cycloalkylene)-bis-heterocyclyl-biguanides  
Alkylene(cycloalkylene)-bis-heterocyclyl-biguanides of the formula ##STR1## in which A and B each independently is a nitrogen-containing heterocyclic radical which is linked via a nitrogen atom, R...
4560688 Tricyclic antihistamines  
Antihistamines of the formula ##STR1## wherein ##STR2## is a 5 or 6 membered ring which is phenyl or heterocyclic; ##STR3## is a six membered ring which is 2,3, or 4 pyridyl or is phenyl or...
4548761 Process for the preparation of 1-aminobenzene-2-sulphonic acids  
Process for the preparation of 1-aminobenzene-2-sulphonic acids of the formula ##STR1## wherein RH or a substituent and n=1-4,and their salts, in particular their alkali metal salts, by oxidation...
4535104 Ultraviolet light stabilized copolyestercarbonate  
A composition comprising an aromatic copolyestercarbonate article surface impregnated with an ultraviolet light degradation inhibiting effective amount of a compound of the formula ##STR1##...
4522785 Dialkylaminomethyl aromatic triazoles as corrosion inhibitors  
This invention involves a process for minimizing corrosion of metals in contact with aqueous acid solutions wherein said process comprises adding to the aqueous acid solution a corrosion...
4523008 Stabilized unsaturated polyesters  
An unsaturated polyester, such as propylene glycol-maleic acid-phthalic acid prepolymer dissolved in styrene is interpolymerized with an ultraviolet absorber of the formula: ##STR1## and/or an...
4522917 Photographic silver halide light-sensitive material  
A photographic silver halide light-sensitive material is disclosed. The material is comprised of a support and a photographic layer or layers on the support. The photographic layer contains at...
4508882 Benzotriazole compound and homopolymer or copolymers thereof  
Benzotriazole compounds having the formula ##STR1## wherein A represents a hydrogen atom or an acetyl group; R1 represents vinyl, ethyl or a haloethyl group; R2 represents a C1-4 alkyl group and n...
4482496 Stilbene compounds  
The invention relates to stilbene compounds of the formula ##STR1## wherein Q is hydrogen; a monocyclic 5- or 6-membered aromatic heterocyclic ring which is unsubstituted or substituted by...
4426530 Triazolylcoumarin compounds, and their preparation and use as optical brighteners, scintillators and laser dyestuffs  
Optical brighteners of the formula ##STR1## wherein B denotes a direct bond or the 1,4-phenylene radical and R1 and R2 independently of one another denote hydrogen, optionally substituted alkyl,...
4424360 Process for the preparation of fused 1,2,3-triazoles  
An improved process for the preparation of fused 1,2,3-triazoles by reaction of an ortho-diaminoaryl with an ester of nitrous acid in a soluent or diluent is disclosed wherein the process is...
4379166 Arylmethoxy-, arylmethylthio-, heteroarylmethoxy-, and heteroarylmethylthio-alkylaminoalcohols  
This invention relates to 5-(2-alkylamino-1-hydroxyethyl)salicylamides and 4-(2-alkylamino-1-hydroxyethyl)-2-(methylsulfinyl)phenols wherein the alkyl group is substituted by arylmethoxy,...
4367337 Process for conversion of benzimidazolones to benzotriazoles  
This invention relates to a process for producing triazoles which comprises effecting a mixture in an aqueous medium of at least one benzimidazolone and one or more nitrites and heating the...
4363914 Preparation of benzotriazoles  
This invention relates to a process for producing benzotriazoles which comprises effecting a mixture in an aqueous medium of at least one aromatic orthodiamine and one or more nitrites and heating...
4359469 Combating pests with N-sulphenylated oxime-carbamates  
N-Sulphenylated oxime-carbamates of the formula ##STR1## in which R is alkyl or optionally substituted cycloalkyl, aryl or aralkyl, R1 is an optionally substituted N-containing heterocyclic...
4353915 Combating pests with 2-(azol-1-yl)-aldoxime-carbamates  
2-(Azol-1-yl)-aldoxime-carbamates of the formula ##STR1## wherein R1 and R2 each independently is alkyl or together form an alkylene bridge, R3 is hydrogen or alkyl, R4 is hydrogen, alkyl,...
4323633 UV-Absorbing compounds and photographic elements containing them  
It is desirable to protect color photographic dye images from ultraviolet radiation which tends to cause dyes to fade.It has been the practice in the art to add materials into or above the silver...
4321396 Copolymerizable, ultraviolet light absorber allyloxy-2-(2H-benzotriazol-2-yl)-4-alkylbenzenes  
This invention relates to copolymerizable ultraviolet light absorber compounds having the formula: ##STR1## where R is alkylene, C1 -C10, oxyalkylene, C1 -C10, alkyleneoxyalkylene, C1 -C10 or...
4313840 Heat transfer oil and method for driving a Freon turbine  
Freon stable heat transfer oil comprising polyol ester containing tris-(alkylphenyl) phosphite and benzotriazole ##STR1## or benzotriazole derivative ##STR2## in which R1 and R2 each represents a...
4310345 Polycyclic nitrogen-containing compounds  
New and valuable polycyclic compounds which contain nitrogen-containing rings and have a strong action on plants, agents for influencing plant growth containing these compounds, and a method of...
4271293 Benzofuranyl-benzimidazoles  
Compounds of the formula ##STR1## in which R1 denotes aryl, alkyl, aralkyl, styryl or alkoxy, R2 denotes hydrogen, cyano, carboxyl or alkoxycarbonyl, inter alia, R3, R4, R6 and R7 denote hydrogen,...
4240822 Method for controlling undesirable plants using 1H-benzotriazole and 2H-benzotriazole compounds  
The invention is a method for the control of undesirable broadleaf weeds and grass weeds. More particularly, the invention relates to a method for controlling undesirable weeds by applying to the...
4235999 Bichromophoric benzotriazole-styrene ester ultraviolet stabilizers and their use in organic compositions  
The invention relates to bichromophoric benzotriazole-styrene ester compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable...
4230867 Process for the production of 2-aryl-2H-benzotriazoles  
A process for the production of 2-aryl-2H-benzotriazoles comprises reducing and cyclizing the corresponding o-nitroazobenzenes with hydrogen at a temperature in the range of about 20° C. to about...
4224451 Process for the preparation of 2-aryl-2H-benzotriazoles  
A two stage reductive ring closure of o-nitrophenylazophenols produces 2-aryl-2H-benzotriazoles by (a) reacting an organic solvent solution of azophenol with an excess of an aqueous solution of a...
4220788 Process for the preparation of 2-aryl-2H-benzotriazoles  
A process for producing benzotriazoles of the formula I ##STR1## wherein R1 is hydrogen or chlorine, R2 is hydrogen, chlorine, C1 -C4 alkyl, C1 -C4 alkoxy, C2 -C9 alkoxycarbonyl, carboxyl or...
4219480 Process for the production of 2-aryl-2H-benzotriazoles  
A process for the production of 2-aryl-2H-benzotriazoles comprises reducing and cyclizing the corresponding o-nitroazobenzenes with hydrogen at a temperature in the range of about 20° C. to about...
4212754 Chelate detergent and antiwear additive for lubricants derived from hydroxyalkylated benzotriazoles  
There are provided complexes of metal salts prepared by (1) reacting a benzotriazole with a monoepoxide to form a hydroxyalkylbenzotriazole, (2) reacting the hydroxyalkylbenzotriazole with an...
4204998 N-Amino indole derivatives having pharmacological activity  
Novel hydrazines are disclosed in which one of the nitrogen atoms forms a ring member of the five membered ring of a [4.3.0] heterobicyclic compound which may be substituted elsewhere in the ring...
4187229 Bis-benzotriazole compounds  
The invention relates to bis-benzotriazole compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions...
4177155 Additives for water-based functional fluids  
Selected N-aminomethyl-triazoles and imidazoles are prepared by the Mannich reaction on benzotriazoles or benzimidazoles with formaldehyde and primary or secondary amines. The products consist...
4167629 Triazolylstyrene compounds  
This invention relates to new di-triazolylstyrene derivatives, useful as optical brighteners for organic polymeric materials, especially when applied to or incorporated in synthetic fibres.
4159270 Bichromophoric benzotriazole-styrene ultraviolet stabilizers  
The invention relates to bichromophoric benzotriazole-styrene compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic...
4153563 Lubricant compositions containing benzotriazole-allyl sulfide reaction products  
Lubricant compositions containing oleaginous materials and, in amounts sufficient to impart resistance to oxidation and metal corrosion thereto, reaction products of a benzotriazole compound and...

Matches 201 - 250 out of 356 < 1 2 3 4 5 6 7 8 >