Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
  • A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
  • A01N33/18—Nitro compounds
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
  • A01N43/84—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,4
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/22—Organic compounds containing nitrogen
  • C10L1/232—Organic compounds containing nitrogen containing nitrogen in a heterocyclic ring
  • C10L1/233—Organic compounds containing nitrogen containing nitrogen in a heterocyclic ring containing nitrogen and oxygen in the ring, e.g. oxazoles
  • C10L1/2335—Organic compounds containing nitrogen containing nitrogen in a heterocyclic ring containing nitrogen and oxygen in the ring, e.g. oxazoles morpholino, and derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L10/00—Use of additives to fuels or fires for particular purposes
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
  • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
  • C10M133/38—Heterocyclic nitrogen compounds
  • C10M133/48—Heterocyclic nitrogen compounds the ring containing both nitrogen and oxygen
  • C10M133/50—Morpholines
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/22—Organic compounds containing nitrogen
  • C10L1/23—Organic compounds containing nitrogen containing at least one nitrogen-to-oxygen bond, e.g. nitro-compounds, nitrates, nitrites
  • C10L1/231—Organic compounds containing nitrogen containing at least one nitrogen-to-oxygen bond, e.g. nitro-compounds, nitrates, nitrites nitro compounds; nitrates; nitrites
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2215/22—Heterocyclic nitrogen compounds
  • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
  • C10M2215/226—Morpholines
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
  • C10N2030/16—Antiseptic; (micro) biocidal or bactericidal
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/20—Metal working
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/36—Release agents or mold release agents

Definitions

• the invention relates to cold temperature stable and synergistic biocidal compositions suitable for use in various aqueous and non aqueous matrices, such as liquid fuels.
• N-(2-nitroalkyl) morpholine compounds are a class of biocides that are useful for controlling microorganism growth in a variety of environments, such as industrial cooling water systems, recycle process water systems, oil and gas recovery operations, and in fuels.
• FUELSAVERTM which is based on a mixture of N-(2-nitrobutyl)morpholine and 2-ethyl-2-nitro-1,3-dimorpholinopropane, is an example of a commercially available N-(2-nitroalkyl) morpholine biocide that is used for preserving fuels.
• N-(2-nitroalkyl) morpholines are effective biocides, many crystallize at temperatures above 0° C. Such biocides, therefore, are generally unsuitable for cold temperature applications, storage, or transport.
• N-(2-nitroalkyl) morpholines that are cold stable, particularly those that are stable (i.e., do not freeze) at temperatures as low as ⁇ 20° C. It would also be an advance to provide formulations that exhibit enhanced activity against a broad spectrum of microorganisms.
• the invention provides a biocidal composition that is stable at low temperature and exhibits synergistic behavior.
• the composition comprises an N-(2-nitroalkyl) morpholine compound of formula I:
• R, x, and y are as defined herein, together with an aromatic alcohol.
• the invention provides a fuel blend.
• the fuel blend comprises a liquid fuel and the cold temperature stable biocidal composition described herein.
• the invention provides a method for imparting microorganism resistance to a matrix in need of such resistance.
• the method comprises including in the matrix an effective amount of the biocidal composition described herein.
• compositions according to the invention provide cold temperature stable biocidal compositions.
• compositions according to the invention have been found to be freeze stable (i.e., do not freeze) to temperatures as low as ⁇ 20° C. This occurs even though the individual components of the composition are not themselves freeze stable at the same temperatures.
• compositions according to the invention also exhibit improved control of microorganism growth when compared to other non-inventive cold temperature stable formulations.
• microorganism includes, but is not limited to, bacteria, fungi, algae, and viruses.
• control and controlling should be broadly construed to include within their meaning, and without being limited thereto, inhibiting the growth or propagation of microorganisms, killing microorganisms, disinfection, and/or preservation against re-growth of microorganisms.
• composition of the invention comprises: a biocidal N-(2-nitroalkyl) morpholine compound of the formula I:
• R is hydrogen, methyl or ethyl; x is 1 or 2; y is 0 or 1, and the sum of x and y is 2; and an aromatic alcohol.
• Preferred biocidal compounds of formula I are those in which R is ethyl.
• preferred compounds of formula I include: N-(2-nitroethyl)morpholine, N-(2-nitropropyl)morpholine, N-(2-nitrobutyl)morpholine, 2-nitro-1,3-dimorpholinopropane, 2-methyl-2-nitro-1,3-dimorpholinopropane, 2-ethyl-2-nitro-1,3-dimorpholinopropane, or mixtures of two or more thereof.
• N-(2-nitrobutyl)morpholine and 2-ethyl-2-nitro-1,3-dimorpholinopropane More preferred are N-(2-nitrobutyl)morpholine and 2-ethyl-2-nitro-1,3-dimorpholinopropane.
• N-(2-nitrobutyl)morpholine is a mixture of N-(2-nitrobutyl)morpholine and 2-ethyl-2-nitro-1,3-dimorpholinopropane.
• the weight ratio of N-(2-nitrobutyl)morpholine to 2-ethyl-2-nitro-1,3-dimorpholinopropane is between about 20:1 and about 10:1, more preferably between about 18:1 and about 14:1.
• aromatic alcohol used in the compositions of the invention functions as a freeze stabilizer and also as an enhancer of biocidal efficacy.
• Suitable aromatic alcohols include phenoxyethanol, benzyl alcohol, and aromatic glycol ethers. Preferred is phenoxyethanol.
• composition of the invention preferably comprises between about 5 and 95 weight percent, more preferably between about 15 and 75 weight percent, even more preferably between about 30 and 55 weight percent, and further preferably between about 38 and 44 weight percent of the N-(2-nitroalkyl) morpholine compound based on the total weight of the biocide and the aromatic alcohol in the composition.
• An especially preferred composition according to the invention comprises from about 38 to 44 weight percent of a mixture of N-(2-nitrobutyl)morpholine and 2-ethyl-2-nitro-1,3-dimorpholinopropane and about 62 to 56 weight percent of phenoxyethanol, based on the total weight of the mixture of N-(2-nitrobutyl)morpholine/2-ethyl-2-nitro-1,3-dimorpholinopropane and the phenoxyethanol present in the composition.
• the composition may contain other additives including, but not limited to, other aromatic or non-aromatic solvents, glycolic type solvents, and non-aromatic glycol ethers, as well as various inert or byproduct material that may result from the synthesis of the biocide and that are not removed during workup.
• other additives including, but not limited to, other aromatic or non-aromatic solvents, glycolic type solvents, and non-aromatic glycol ethers, as well as various inert or byproduct material that may result from the synthesis of the biocide and that are not removed during workup.
• the total amount of biocide compound and aromatic alcohol comprise at least about 70 weight percent, more preferably at least about 80 weight percent of the composition, based on the compositions total weight.
• N-(2-nitroalkyl) morpholine compound can be combined for use in the invention; in such cases, ratios and concentrations are calculated using the total weight of all N-(2-nitroalkyl) morpholine compounds present.
• N-(2-nitroalkyl) morpholine compounds for use in the invention are commercially available or can be readily prepared by those skilled in the art using well known techniques (see e.g., U.S. Pat. No. 3,054,749 and Canadian patent 982475, both incorporated by reference).
• Aromatic alcohols are also commercially available or can be readily prepared.
• compositions of the invention are useful at controlling microorganism growth in a variety of aqueous and non-aqueous matrices and in matrices that are mixtures of aqueous and non-aqueous components.
• examples include, but are not limited to, metalworking fluids, die cast lubricants, mold release agents, paints, paint spray booth wash water, coatings, adhesives, caulks, sealants, mineral slurries, inks, petroleum (crude oil), or liquid fuels such as gasoline, diesel, biodiesel, water-fuel emulsions, ethanol-based fuels, ether-based fuels, diesel oil, fuel oil, or kerosene based fuels. Because of their cold temperature stability, the compositions of the invention are particularly suitable for controlling microorganisms in liquid fuels.
• a suitable effective amount is at least about 25 ppm or at least about 500 ppm, by weight. Typically, the amount is less than about 20,000 ppm or less than about 2500 ppm, by weight.
• composition of the invention can be added to the matrix separately or they can be preblended prior to addition.
• a person of ordinary skill in the art can readily determine the appropriate method of addition. Preblending is preferred.
• Sample C a comparative composition that is freeze stable and that contains a mixture of about 55 weight percent tripropylene glycol methyl ether as a freeze stabilizer and about 45 weight percent of Sample A.
• the composition does not contain phenoxyethanol.
• Sample A comparative composition
• Sample B comparative composition
• phenoxyethanol comparative
• the inventive composition does not freeze even though the individual ingredients, the biocide mixture (Sample A) and the phenoxyethanol, both freeze under the same temperature conditions.
• This example compares the efficacy of compositions of the invention to non-inventive compositions, in diesel fuel, against various microorganisms.
• Bacteria Pseudomonas aeruginosa (ATCC# 33988), Yeast: Yarrowia tropicalis (ATCC# 48138), and Mold: Hormoconis resinae ATCC# 20495, are sub-cultured in Bushnell-Haas broth, and used for the inoculum of this example.
• Bushnell-Haas broth is used as the aqueous phase below the diesel fuel. Testing is carried out for 4 weeks. Microbial survival is measured using the plate count method.
• Tryptic soy agar is used for Pseudomonas aeruginosa , and Sabouraud dextrose agar with 0.5 ug/ml gentamycin for Yarrowia tropicalis , and bacteriological grade agar 1.5%, with 0.01% potassium tellurite for Hormoconis resinae .
• Bacteria are incubated at 37° C. for 48 hours, and fungi at 25° C. for 5-7 days.
• Tests are carried out in glass bottles with bakelite screw tops. Volumes: 130 ml diesel fuel over 25 ml synthetic water bottom (Bushnell-Haas Broth). Tests are mixed weekly by turning the bottle upside down 5 times.
• the diesel fuel is obtained from Halternann Products (Channelview, Tex.) Diesel fuel, with the following specifications: 2007 Certification Diesel, GMPT-5-0,9-; Product Number: HF 582b; Product Code: 20582b.
• Table 2 shows results for “Sample B”, a composition according to the invention.
• Table 3 shows results for “Sample C,” a comparative composition that is freeze stable.
• Table 4 shows results for phenoxyethanol which is a component in Sample B, but is not freeze stable by itself.
• Table 5 is a summary of the lowest dosage required to reduce the concentration of viable microorganisms to a ⁇ 10 CFU/mL level for Samples B, C, and phenoxyethanol.
• the inventive composition provides significantly improved microbial control relative to the other low temperature stable formulation (Sample C), as well as relative to phenoxyethanol which is not freeze stable nor very effective as a microbial control agent.
• Sample A and Sample C were re-tested at the same biocidal active concentrations using the test method described in Example 2, except the test was carried out for 7 days and the microbial survival was measured at 24 hour and at 7 days. The results are summarized in Table 6.
• CA Concentration of NMB/ENDM required to reduce the concentration of viable microorganism to ⁇ 10 CFU/ml level when used alone
• CB Concentration of PHE required to reduce the concentration of viable microorganism to ⁇ 10 CFU/ml level when used alone

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Wood Science & Technology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Health & Medical Sciences (AREA)
• Health & Medical Sciences (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Plant Pathology (AREA)
• Dentistry (AREA)
• General Chemical & Material Sciences (AREA)
• Pest Control & Pesticides (AREA)
• Agronomy & Crop Science (AREA)
• Combustion & Propulsion (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Liquid Carbonaceous Fuels (AREA)

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• 2010
  • 2010-03-25 EP EP10711125.4A patent/EP2417231B1/en not_active Not-in-force
  • 2010-03-25 WO PCT/US2010/028596 patent/WO2010117650A2/en active Application Filing
  • 2010-03-25 US US12/731,403 patent/US20100251602A1/en not_active Abandoned
  • 2010-03-25 JP JP2012503518A patent/JP5727456B2/ja active Active
  • 2010-03-25 CN CN201080014374.9A patent/CN102438457B/zh not_active Expired - Fee Related
  • 2010-03-25 RU RU2011144572/13A patent/RU2534577C2/ru not_active IP Right Cessation
  • 2010-03-25 BR BRPI1006774-4A patent/BRPI1006774A2/pt not_active Application Discontinuation

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