Showing papers on "Benzotriazole published in 1972"

Composition for etching copper with reduced sideways-etching

Abstract: An etching bath composition which reduces the extent of side or lateral etching is prepared by admixing an additive selected from a group consisting of aliphatic amines having a straight chain of more than four carbon atoms, cyclohexylamine, benzotriazole or N, N-dialkylaniline, with a basic composition of sulfuric acid and hydrogen peroxide.

Hydrogen Evolution on Copper in H2 SO4 Containing Benzotriazole

Abstract: The rate of hydrogen evolution on copper in acidic solutions containing benzotriazole has been investigated. The rate of hydrogen evolution decreased with an increase in concentration of benzotriazole up to about 7 mM. The reaction orders and the Tafel slopes were approximately the same for uninhibited and inhibited copper, indicating that the mechanism of hydrogen evolution was not changed by the presence of benzotriazole. Differential capacitances of uninhibited copper were about 28 μf/cm2, but capacitances of inhibited copper decreased with increasing inhibitor concentration approaching a limiting value of 1 μf/cm2. The adsorption of the organic inhibitor follows Langmuir adsorption behavior with an adsorption constant of 7.2 mM−1.

Method and composition for control of corrosion and scale formation in water systems

Abstract: A composition for controlling corrosion and scale deposition in aqueous systems which comprises a phosphonate, an alkali metal molybdate salt and an alkali metal mercaptobenzothiazole or benzotriazole. In a preferred embodiment, a polyacrylate or polyacrylamide is combined with these constituents. In accordance with the method of this invention, these constituents are added to the aqueous system in amounts which are sufficient to provide a phosphonate concentration of at least 0.8 ppm, a molybdate salt concentration of at least 7 ppm and a mercaptobenzothiazole salt concentration of at least 2 ppm or benzotriazole concentration of at least 1 ppm.

Benzotriazole pre-lamination treatment of metal substrates

Abstract: ORGANCI COMPOUNDS, ESPECIALLY POLYMERS, ARE BONDED TO COPPER, SILVER OR CADMIUM SURFACES BY MEANS OF COMPOUNDS CONTAINING A LIGAND GROUP, ESPECIALLY A BENZOTRIAZOLE GROUP, WHICH WILL FORM A POLYMERIC COMPLEX WITH THE METAL OF THE SURFACE AND A GROUP REACTIVE WITH THE ORGANIC COMPOUND. THE METAL SURFACE MAY BE TREATED WITH THE COMPLEX-FORMING COMPOUND BEFORE OR DURING CONTACT WITH THE ORGANIC COMPOUND. THE POLYMERS MAY BE PREPARED FROM POLYMER-FORMING COMPONENTS WHILE IN CONTACT WITH THE METAL SURFACE.

Organic compositions containing n-acyl benzotriazoles

Abstract: Organic compositions, which are normally susceptible of corroding copper, are provided, containing, in an amount sufficient to inhibit such corrosion an N-acyl benzotriazole.

Zn++-benzotriazole-h2so4 corrosioninhibitor

Abstract: CORROSION-INHABITING COMPOSITIONS OF ZN++ CATIONS, BENZOTRIAZOLE AND H2SO4, ALONE OR IN COMBINATION WITH OTHER CORROSION-INHABITORS ARE DISCLOSED. ADDITION OF DIETHYLENETRIIAMINEPENTAACETIC ACID ALLOWS FORMAULATION OF A CORROSION-INHIBITING COMPOSITION HAVING A NEUTRL PH.

Light stabilized polypropylene containing a hindered phenol,a phosphite and a benzotriazole

Abstract: POLYMERIC COMPOSITIONS ARE STABILIZED AGAINST DEGRADATION IN PHYSICAL AND CHEMICAL PROPERTIES FROM EXPOSURE TO ACTINIC RADIATION BY INCORPORATION INTO SUCH COMPOSITIONS AN ADDITIVE SYSTEM COMPRISING AT LEAST ONE SECONDARY ORGANIC PHOSPHITE ESTER IN COMBINATION WITH AT LEAST ONE 2(2''-HYDROXY-5''-ALKYLPHENYL)BENZOTRIAZOLE. OPTIONALLY, THE STABILIZER ADDITIVE SYSTEMS FURTHER COMPRISE HINDERED PHENOLS.

Stabilized polyvinyl acetal interlayers

Abstract: DISLCLOSED HEREIN ARE POLYVINYL ACETAL RESINS, SUITABLE FOR USE AS INTERLAYERS FOR PELLUCID LAMINATES WHICH CONTAIN A SYNERGISTIC MIXTURE OF 2,6-DI-N-OCTADECYL-P-CRESOL STABILIZERS AND AN ALKYLATED HYDROXY PHENYL BENZOTRIAZOLE.

Light stabilized polymer compositions and benzotriazole stabilizers

Abstract: BENZOTRIAZOLES USEFUL AS LIGHT STABILIZERS OF THE FORMULA: 1-(HO-),2-(5-X-2H-BENZOTRIAZOL-2-YL),4-CL,6-(PHENYL-CH(-R) -)-BENZENE WHEREIN R IS H OR METHYL AND X IS CL OR H.

Silver halide photosensitive element containing an antifogging combination of a nitrated heterocyclic compound and a polymeric stabilizer

Abstract: ANTI-FOGGING AGENTS FOR SILVER HALIDE PHOTOGRAPHIC EMULSIONS CONSISTING OF A COMBINATION OF (A) AN NITRATED BENZIMIDAZOLE, INDAZOLE OR BENZOTRIAZOLE COMPOUND REPRESENTED BY THE GENERAL FORMULA 1,2-(-X=Y-NH-),(O2N-)BENZENE WHEREIN X AND Y INDIVIDDUALLY REPRESENT N OR CR, WHEREIN R REPRESENTS A HYDROGEN ATOM OR ALKYL GROUP CONTAINING 1 TO 4 CARBON ATOMS, AND (B) AT LEAST ONE MEMBER SELECTED FROM POLYMERS CONTAINING GREATER THAN 50 MOL PERCENT OF RECURRING UNITS REPRESENTED BY THE GENERAL FORMULA -(CH2-CH(-N(-R1)-CO-R2))WHEREIN R1 AND R2 INDIVIDUALLY REPRESENT A HYDROGEN ATOM OR AN ALKYL GROUP CONTAINING 1 TO 4 CARBON ATOMS OR FORM, WHEN TAKEN TOGETHER WITH THE NITROGEN AND CARBON ATOMS TO WHICH THEY ARE ATTACHED, A 5- OR 7-MEMBERED HETEROCYCLIC RING. THE ANTI-FOGGING AGENT MAY BE INCORPORATED IN SILVER HALIDE EMULSION LAYERS OR IN ANOTHER LAYER ADJACENT TO THE EMULSION LAYER TO REDUCE FOG IN THE EMULSION LAYER WITHOUT A SACRIFICE IN THE SENSITIVITY OF THE PHOTOSENSITIVE MATERIALS.

Preparation of benzotriazole-2-carboxamides

Abstract: Benzotriazole-2-carboxamides having anthelmintic activity are prepared by 2-acylating a 4,7-dihalobenzotriazole then removing the 4,7-dihalo groups by catalytic hydrogenation at low temperatures and pressures. Hydrogenation at higher temperatures and pressures give 4,5,6,7-tetrahydrobenzotriazole-2-carboxamides also having anthelmintic activity.

Lubricant composition containing phosphorinane derivatives and novel phosphorinane derivatives

Abstract: 1293245 Lubricant compositions SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 25 Feb 1970 [27 Feb 1969 16 June 1969] 9032/70 Heading C5F [Also in Division C2] Lubricants comprise a lubricating oil and a compound of the formula wherein R 1 , R 2 , R 3 and R 4 are H or C 1-8 alkyl; X is O or S; and Y is -NH-Z (Z being a heterocyclic group containing 2 or more N atoms), or XHA (A being a primary or secondary amine having a C 8-30 alkyl group) 0A01- 3 Wt per cent of the compound is added to mineraloilsobtained from paraffinic, naphthenic, asphaltic or mixed base crudes, eg neutral oils of viscosity 100-6500 SSU at 100‹ F or to synthetic oils Z can be a group of the formula wherein R 5 is H, C 1-12 alkyl, C 6-12 aryl or C 7-12 alkaryl Suitable synthetic lubricants are methyl silicone, methyl phenyl silicone, methyl chlorophenyl silicone, polyisopropylene oxide, polyisopropylene oxide diether, polyisopropylene oxide diester, fluorinated oils and perfluorinated hydrocarbons, di-2-ethylhexyl sebacate, di-2- ethylhexyl phthalate, diundecyl azelate, diisooctyl adipate, diisodecyl adipate, bis-(2,2,4-trimethylpentyl) azelate, trimethylol propane triheptanoate, and esters of mono carboxylic acids with pentaerythritol and dipentaerythritol The lubricants can also contain 2,6 di-t-butyl 4- methyl phenol, 4,4 1 - methylene - bis - (2,6 - dit-butyl phenol), C 16-18 alkenyl succinic acids, vinylpyrrolidone - methacrylate copolymers, polyalkenyl succinimides, phenyl and naphthylamine, p,p - di - t - octyldiphenylamine, quinizarin, phenothiazine, benzotriazole, zinc dialkyl dithiophosphates, triphenyl phosphorothionate, N - benzyl - 3,7 - dioctylphenothiazine, and sulphurized oleic acid

The catalytic oligomerization of butadiene on complexes of Rh(I)

Abstract: 1. Complexes of the general formula LRh(CO)2Cl, where L is benzotriazole, acridine, imidazole, or benzimidazole, have been synthesized. 2. In the presence of catalytic amounts of the complexes LRh(CO)2Cl in ethanol, methanol, and acetone, butadiene is converted into a mixture of 4-vinylcyclohexene, cycloocta-1,5-diene, and 1,4-transpolybutadiene. In DMF solutions, the sole reaction product is 4-vinylcyclohexene. 3. In solutions of binuclear complexes of Rh(I) in DMF, in addition to 4-vinylcyclohexene, on the complex with p-phenylenediamine cycloocta-1,5-diene is formed and in the presence of the benzidine complex octa-1,3,7-triene is formed. Their formation may be connected with a doublet mechanism of the action of the two catalytically active centers of the binuclear complex catalyst.

Reactions of acyl isocyanates with 8-hydroxyquinoline and 2-amino derivatives of pyridine, thiazole, 4-thiazolinone, and benzotriazole

Abstract: The reaction of acyl isocyanates with 8-hydroxyquinoline and 2-amino derivatives of pyridine, thiazole, 4-thiazolinone, and benzotriazole gave, respectively, 8-quinolyl-N-acylcarbamates, 2-acylcarbamoyl derivatives of pyridine, thiazole, and 4-thiazolinone, and 1-acylcarbamoylbenzotriazoles. It was demonstrated by means of the IR, UV, and PMR spectra that the products of the addition of acyl isocyanates to 2-aminothiazole and 2-aminothiazolinone are tautomeric mixtures of the amine and imine forms.

Corrosion inhibitor for aqs alkanol amine solns - - comprising eg vanadium cpd/antimony cpd combination

Abstract: Corrosion inhibiting agent for use in aq. alkanolamine solns. for removal of acid from natural gas, combination gas, or synthesis gas, is selected from (1) a combination of 9-1 pts wt V cpd and 1-9 pts. wt Sb, cpd, both cpds, being at least partly soluble in the aq. alkanolamine soln, (2) stannous salts, (3) organotin cpds, (4) nitro-substd aromatic acids (5) nitro-substd acid salts, and (6) benzotriazole. Pref. the alkanolamine soln contains 0.01-2.0 wt.% corrosion inhibitor. Corrosion of ferrous metal appts parts is inhibited at a relatively low cost.

Proton magnetic resonance spectra of some vinyl and ethyl derivatives of five-membered N-heterocycles

Abstract: On the basis of the chemical shifts of the signals in the PMR spectra of the N-vinyl and N-ethyl derivatives of indole, benzimidazole, benzotriazole, and imidazole a theory was advanced regarding the character of the influence of a second and third nitrogen atom on the vinyl and ethyl radicals.