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8178121 |
Ready-to-use paracetamol injection solutions containing propylene glycol as the only cosolvent
The present invention refers to ready-to-use highly stable paracetamol injectable solutions, prepared by mixing paracetamol, water, propylene glycol, and a citrate buffer. (pH 4.5 to 6.5), and by...
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7816562 |
Amido-organoborate initiator systems
The invention is amido-borate compounds containing one or more anionic amido-borate moieties comprising an organoborate anion wherein the boron atom is bonded to a nitrogen atom of ammonia or an...
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7737241 |
Amido-organoborate initiator systems
The invention is a system for initiating free radical polymerization comprising: a) in one part, one or more amido-borate compounds containing one or more anionic amido-borate moieties comprising...
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7524989 |
Stabilized hydroxylamine solutions
A stabilized hydroxylamine solution is disclosed. The stabilized solution comprises a selected stabilizer, which can be added during manufacture and/or storage of the hydroxylamine solution.
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7425652 |
Preparation of alkanolamines
Alkanolamine compositions are disclosed. The composition comprises an alkanolamine and hydroxylamine or hydrazine. Preferred alkanolamine includes diethanolamine, triethanolamine, and mixtures...
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7232928 |
Stabilization method of cycloalkanone oxime
Cycloalkanone oxime is stabilized by a method comprising bringing the cycloalkanone oxime into contact with at least one compound selected from the group consisting of oxoacids, oxoacid salts,...
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7199269 |
Method for producing stable solutions of phenolic substances and resulting solutions
A novel method for producing stabilized antioxidant-free solutions based on phenolic substances which consists in deoxygenation of the solutions with an inert gas, and in deoxygenation of gas...
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7002041 |
Stabilized amide composition
An amide composition containing an unsaturated amide, a sulfur-containing compound, and a weak acid salt. The composition can include an amide in crystalline form or the composition can be in form...
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6534681 |
Method for preparing highly stabilized hydroxylamine solutions
The present invention relates to a process for the preparation of high-purity, stabilized hydroxylamine solutions in which an aqueous hydroxylamine starting solution is treated with an anion...
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6444737 |
Water-dispersed polymer stabilizer
The invention provides stabilizer systems for scavenging acid, minimizing hydrolysis, or both in polymer systems. The invention comprises a combination selected from the group consisting of:...
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6300518 |
Aqueous hydroxylamine solution
An aqueous hydroxylamine solution containing hydroxylamine in an amount of 30 wt. % or more, which contains iron in an amount of not more than 10 ppb, metal components other than iron in an amount...
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6294514 |
Process for preparing mono-long chain amine oxide surfactants with low nitrite, nitrosamine and low residual peroxide
Mono-long chain amine oxide surfactants can be prepared containing active levels of greater than about 30%, by weight of amine, and with low nitrite and nitrosamine levels and low levels of...
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6169203 |
Method of preparation of alkali-metal amides
A method for synthesizing an alkali-metal amide comprises the step of charging a reactor vessel with a reaction mixture comprising an alkali metal selected from the group of lithium, sodium,...
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6054616 |
Process for reducing residual raw material impurities in tertiary amine oxides
The claimed process consists in treating the tertiary amine oxide with a sulphite or a bleach activator.
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6054620 |
Process for producing a tertiary amine having high quality
The present invention provides a process for producing a tertiary aliphatic amine having high quality having little non-amines such as esters and alcohols, which is less colored, and which can be...
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6028222 |
Stable liquid paracetamol compositions, and method for preparing same
Novel stable paracetamol compositions for use in therapeutic chemistry and specifically galenic pharmacy are disclosed. The compositions contain a solution of paracetamol in an aqueous solvent...
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5923044 |
Lithium dialkylamide and lithium alkylenecycloimide formulations and methods of preparation
A process for producing nornally liquid hydrocarbon solutions of lithium dialkylamides and lithium alkylenecycloimides, essentially free of ethers and by-product gaseous alkanes derived from C1-C4...
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5840976 |
Method of stabilizing N-vinylamides
Disclosed herein is a method of improving the stability of N-vinylamides. A quinone or alkali-modified quinone is added to the N-vinylamide. The loss of the N-vinylamide due to polymerization...
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5808150 |
Stabilization of hydroxylamine solutions
The invention provides a stabilized aqueous, semi-aqueous, or non-aqueous solution of hydroxylamine or a partially neutralized hydroxylamine salt and a process therefore. The invention utilizes as...
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5726308 |
High purity formulations of highly substituted lithium amide bases
A process for preparing high purity solutions of highly substituted lithium amide bases by direct reaction of lithium metal with highly substituted amine bases alone or in an ether solvent, a...
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5679850 |
Lithium diisapropylamide
Lithium diorganoamide compositions are prepared in ethers with an ether to diorganoamide mole ratio of from about 2.0 to about 5.0. These compositions have enough thermal stability generally due to...
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5679838 |
Prevention of or reduction in the formation of amines and N-nitrosamines during the manufacture and use of elastomers
Monofunctional or multifunctional isocyanates having the general formula R--(NCO)x where R is any organic remainder, x≥1,or compounds which form such isocyanates under the influence of tempe...
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5574197 |
Method of making a stable non-pyrophoric lithium diorganoamide solution
The method of making the stable non-pyrophoric solution containing a lithium diorganoamide of the formula, LiNR'R" wherein R' and R" each have from 2 to 6 carbon atoms, in an inert liquid...
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5498373 |
Process for reducing the levels of nitrite contaminants in amine oxide surfactants
Amine oxide surfactants contaminated with nitrite are treated under acidic conditions with materials such as maleic acid and diethylenetriaminepentaacetate (DTPA) to reduce nitrite levels below 1...
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5498791 |
Nitrosamine and nitrite inhibition
A synergistic mixture of a carbonate and/or bicarbonate with a phosphonate, especially an organoamino methylene phosphonate or an N-oxide thereof, inhibits or reduces nitrosamine contamination...
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5493038 |
Method of preparation of lithium alkylamides
A process for quickly preparing easily separable solutions of lithium alkylamides, as exemplified by the formula (R3 M)x NLi(R1)y.(LB)z (I)wherein M is silicon or carbon, R and R1 are C1 -C8 alkyl,...
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5424482 |
Process for preparing color-stable tertiary butyldiethanolamine
Tertiary-butyldiethanolamine subject to color deterioration is purified and stabilized against color formation by vacuum distilling said amine at a pressure within the range of 1 to 50 mm.Hg (1-50...
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5399760 |
Color control & stability in acetaminophen
A method is provided for purifying crude N-acetyl-para-aminophenol (APAP) containing color bodies or their precursors, the method comprising: a) forming a solution of the crude APAP; and b)...
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5397699 |
Method for stabilizing an alkanol amine buffer used in optical determinations of enzyme activity
A method for stabilizing an alkanol amine buffer against substantial degradation so that enzyme activity can be optically determined in such a buffer is described. Stabilization is achieved by...
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5391824 |
Stabilized lithium reagents
An ether free organolithium reagent composition comprising a solution of a lithium alkylamide having 4 to 20 carbon atoms, and lithium alkoxide present in a amount to increase the solubility of the...
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5359139 |
Tertiary amine treatment
A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning...
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5352828 |
Process for stabilizing aqueous acrylamide solution
A process for the stabilization of an aqueous acrylamide solution is described which includes adding at least one compound selected from water-soluble monocarboxylic acid salts having at least two...
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5352785 |
Continuous process for purifying perfluorochemical compositions
A process for the purification of a perfluorochemical composition comprises continuously mixing the perfluorochemical composition, comprising a liquid mixture of inert perfluorochemicals (e.g.,...
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5324857 |
Inhibition of the formation of nitrosamines
Reaction of amine-containing substrates with hydrogen peroxide can suffer from certain problems, especially in the presence of transition metals. These problems include both in situ generation of...
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5320774 |
Preparation of organometallic amide compositions
This invention concerns organometallic amide compositions particularly bimetallic organoamides in liquid hydrocarbon solutions in which one metal is an alkali metal the other an alkaline earth...
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5315039 |
Method for inhibiting thermal decomposition of cycloalkanone oximes
Thermal decomposition of cycloalkanone oximes is inhibited by allowing nitrogen-containing compounds represented by the following formula (1) to coexist with the cycloalkanone oximes: NR1 R2 R3...
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5244582 |
Immobilized reagents for scavenging nitrosating agents
This invention relates to reactive groups immobilized on inorganic substrates such as derivatized glass, silica, ceramics, or metals. The immobilized reactive groups can be used to inactivate or...
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5223644 |
Nitrosamine inhibition
Bicarbonates and/or carbonates are used in greater than catalytic amounts to inhibit the formation of nitrosamines during the preparation, storage and/or use of amine oxides.
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5136092 |
Process for treating tertiary amines
A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning...
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5118852 |
Tert-amine treatment
A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning...
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5113017 |
Process for treating tertiary amines
A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning...
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5107028 |
Process for treating tert-amines
A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning...
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5103052 |
Tertiary amine treatment
A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning...
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4898975 |
Water soluble organic ammonium per halides
Water soluble biocidal water treatment perhalides of the formula: ##STR1## where R1 and R2 are independently hydrogen, hydroxyethyl, alkyl, cyclic alkyl, (alpha, omega)-alkyl, alkyl ether,...
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4895875 |
Stabilized peroxide solutions
Solutions of urea peroxide in glycerine suitable for use as ear wax removal aid formulations, which solutions have been stabilized by the addition of succinic anhydride thereto.
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4883913 |
Stabilization of chlorofluoroalkanes
A method of stabilizing a composition comprising a chlorofluoroalkane and an amine or amine-based polyol comprising incorporating into said composition an effective stabilization promoting amount...
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4857556 |
Substituted benzylcycloalkenylurea derivatives
Substituted benzylcycloalkenylurea derivatives of the formula (I) ##STR1## wherein X represents a halogen atom or a lower alkyl group, Y represents an oxygen atom or a sulfur atom, R1 represents a...
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4827037 |
Quality of catalytically prepared polyalkylene polyamines
Process for the improvement of the quality of polyalkylene polyamines prepared by the reaction of (i) ammonia and/or an alkyleneamine compound having at least two amino groups and an alkanolamine...
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4766247 |
Color reduction of polyamines by mild catalytic hydrogenation
The present invention relates to a process for the reduction of the color of polyamines by reacting at elevated temperature, i.e. 50° to 175° C., and pressure, i.e. 50 to 1500 psig, such colored p...
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4737300 |
Additives for materials
The invention relates to material containing aldosemarcaptals of the formula I ##STR1## wherein n can be an integer from 2 to 6, and wherein R1 and R2 are identical or different, and in each case...
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