EP2454359A2 - Industriereinigerzusammensetzungen und anwendungsverfahren dafür - Google Patents

Industriereinigerzusammensetzungen und anwendungsverfahren dafür

Info

Publication number
EP2454359A2
EP2454359A2 EP10800167A EP10800167A EP2454359A2 EP 2454359 A2 EP2454359 A2 EP 2454359A2 EP 10800167 A EP10800167 A EP 10800167A EP 10800167 A EP10800167 A EP 10800167A EP 2454359 A2 EP2454359 A2 EP 2454359A2
Authority
EP
European Patent Office
Prior art keywords
acid
alkyl ester
blend
cleaning composition
composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10800167A
Other languages
English (en)
French (fr)
Other versions
EP2454359A4 (de
Inventor
David Fluck
Amit Sehgal
Charles Aymes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodia Operations SAS
Original Assignee
Rhodia Operations SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhodia Operations SAS filed Critical Rhodia Operations SAS
Publication of EP2454359A2 publication Critical patent/EP2454359A2/de
Publication of EP2454359A4 publication Critical patent/EP2454359A4/de
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/266—Esters or carbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/667—Neutral esters, e.g. sorbitan esters
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2093—Esters; Carbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5022—Organic solvents containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines

Definitions

  • This invention relates to cleaning compositions that are environmentally friendly, biodegradable, non-toxic and non-flammable with low odor, low vapor pressure and low volatile organic compound (VOC) content and, more particularly, cleaning compositions utilized for multiple commercial and industrial applications, including in the paper and printing industry.
  • VOC volatile organic compound
  • cleaners utilize volatile organic compounds in cleaning.
  • Compounds which are high VOC solvents include toluene, xylene, methyl ethyl ketone, glycol ethers, tetrachloroethylene, methyl isobutyl ketone, methanol, 1 ,1 ,1- trichloroethane, dichloromethane and ethylene glycol.
  • These and other high VOC solvents are used for cleaning the presses, rollers and other equipment in various industries including the paper and printing industries.
  • many current cleaning compositions contain aromatic groups that are in many cases toxic, have unpleasant odors, and are not environmentally friendly in that they do not biodegrade well. Often these solvents will be low vapor pressure solvents with low flashpoints that are also extremely flammable. Such compositions are undesirable in light of the increased awareness for human exposure to toxic materials and the demand for environmentally friendly cleaners.
  • a cleaning compositions used in industrial paper processing applications When paper is recycled, significant quantities of non-pulp material, such as, resins, inks, polymers, adhesives, etc. are removed and separated from the pulp-material.
  • the pulp material finds its way to the sheet production end of the paper making process. It is at this process that the pulp is formed into a continuous sheet on a conveyer-type arrangement, which typically is a nylon mesh belt know as the "wires" (because in the early papermaking process brass wires made up the conveyer surface).
  • the wires are open mesh such that water can be squeezed from the pulp as the sheet is formed.
  • One drawback, however, is that the mesh may clog with residual materials from the recycling process and needs to be cleaned in situ in order to prevent shut down of the
  • Hi Sol 70RTM is an aromatic blend, which is environmentally unfriendly, that imparts a strong kerosene odor to the paper.
  • the cleaning composition is more efficient at removing material from the screens yet is still environmentally friendly.
  • a cleaning composition comprising one or more dibasic esters; one or more biodiesel components; and optionally additional components and/or water.
  • the dibasic esters can be derived from adipic, glutaric, and succinic diacids, or isomers thereof.
  • the dibasic ester blend is comprised of a mixture dialkyl methylglutarate, dialkyl ethylsuccinate and dialkyl adipate.
  • the dibasic ester blend is comprised of a mixture dialkyl methylglutarate and dialkyl ethylsuccinate.
  • the cleaning composition comprises (a) a blend of dibasic esters comprising dialkyl methylglutarate and at least one of dialkyl adipate and dialkyl ethylsuccinate, typically the blend comprises a mixture of dialkyl adipate, dialkyl methylglutarate and dialkyl ethylsuccinate; and (b) a biodiesel component, typically one or a mixture of fatty acid alkyl esters.
  • the biodiesel component can be one or a mixture of fatty acid alkyl esters.
  • the fatty acid alkyl esters include but are not limited to: methyl, ethyl, propyl, butyl and/or stearyl esters of caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselic acid, linoleic acid, linolenic acid, elaeostearic acid, arachic acid, gadoleic acid, behenic acid and erucic acid and the technical mixtures thereof.
  • the cleaning composition has desirable qualities including one or a combination of being: substantially non-toxic, non-flammable, biodegradable, high flash point, low vapor pressure and low odor; meets the consumer products LVP-VOC exemption criteria established by CARB and federal VOC exemption from EPA.
  • a low VOC product has less than 50g/L VOC, or in some cases less than 100 g/L VOC, or in some cases less than 150 g/L VOC.
  • one embodiment of the invention is a cleaning
  • composition comprising, based on the total weight of the composition,: (a) from about 1% to about 99% by weight a blend of dibasic esters; (b) from about 1% to about 95% by weight one or more biodiesel components; and optionally, (c) water and/or additional components.
  • the addition components include but are not limited to surfactants, for example anionic surfactants, cationic surfactants, amphoteric surfactants, zwitterionic surfactants, nonionic surfactants and any combination thereof, as well as fragrances and solubilizers, pH adjusting agents, whiteners, delaminates such as pinenes, for example, d-limonene, opacifying agent, anti-corrosion agents, anti-foaming agents, coloring agents, stabilizers and thickeners.
  • surfactants for example anionic surfactants, cationic surfactants, amphoteric surfactants, zwitterionic surfactants, nonionic surfactants and any combination thereof, as well as fragrances and solubilizers, pH adjusting agents, whiteners, delaminates such as pinenes, for example, d-limonene, opacifying agent, anti-corrosion agents, anti-foaming agents, coloring agents, stabilizers and thickeners.
  • the cleaning composition can
  • a cleaning composition comprising: from about 25% to about 95% by weight a blend of dibasic esters; from about 1% to about 75% by weight a biodiesel component; and, optionally, water or additional components; more typically, from about 50% to about 90% by weight a blend of dibasic esters; from about 1% to about 50% by weight a biodiesel component; and, optionally, (c) water or an additional component.
  • the cleaning composition further comprises about 1% to about 25% by weight an additional component.
  • the cleaning composition can be provided as a liquid or spray formulation for use, depending upon the application.
  • the cleaning composition comprises a blend of alkyl esters of adipic, glutaric, and succinic diacids or a blend of alkyl esters of adipic, methylglutaric and ethylsuccinic diacids.
  • the cleaning composition can be used as an paper screen/press/roller cleaner comprising: (a) from about 1% to about 95%, by weight of the cleaning composition, a blend of dibasic esters, wherein the blend comprises:
  • Ri and/or R 2 individually comprise a hydrocarbon having from about 1 to about 8 carbon atoms, typically, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, n-butyl or isoamyl; (b) from about 1% to about 50%, by weight of the cleaning composition, a biodiesel component; (c) from about 0% to about 12%, by weight of the cleaning composition, one or more additional components, and (d) from about 0% to about 85%, by weight of the cleaning composition, water.
  • the cleaning composition is environmentally friendly, with a high flash point, low vapor pressure and low odor; it falls under the consumer products LVP-VOC exemption criteria established by CARB and federal VOC exemption from EPA.
  • the cleaning formulation has environmentally friendly characteristics including but not limited to being non toxic, bio-degradable, non-flammable and the like. This formulation can be applied as a cleaning composition.
  • Fig. 1 is a chart illustrating solvent cleaning effectiveness on nylon mesh.
  • alkyl means a saturated straight chain, branched chain, or cyclic hydrocarbon radical, including but not limited to, methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl, t-butyl, pentyl, n-hexyl, and cyclohexyl.
  • aryl means a monovalent unsaturated
  • alkylene means a divalent saturated straight or branched chain hydrocarbon radical, such as for example, methylene, dimethylene, trimethylene.
  • surfactant means a compound that when dissolved in an aqueous medium lowers the surface tension of the aqueous medium.
  • the invention as claimed is a cleaning composition comprising a blend of dibasic esters.
  • the blend comprises adducts of alcohol and linear diacids, the adducts having the formula R 1 -OOC-A-COO-R 2 wherein Ri and/or R 2 comprise, individually, a CrCi 2 alkyl, more typically a C 1 -Ce alkyl, and A comprises a mixture of -(CH 2 )4-, -(CH 2 )3, and -(CH 2 ) 2 -.
  • R 1 and/or R 2 comprise, individually, a C 4 -C 12 alkyl, more typically a C 4 -C 8 alkyl.
  • R 1 and R 2 can individually comprise a hydrocarbon group originating from fusel oil. In one embodiment, R 1 and R 2 individually can comprise a hydrocarbon group having 1 to 8 carbon atoms. In one embodiment, R 1 and R 2 individually can comprise a
  • hydrocarbon group having 5 to 8 carbon atoms having 5 to 8 carbon atoms.
  • the blend comprises adducts of alcohol and branched or linear diacids, the adducts having the formula R1-OOC-A-COO-R2 wherein R 1 and/or R 2 comprise, individually, a C 1 -C 12 alkyl, more typically a C 1 -C 8 alkyl, and A comprises a mixture of -(CH 2 ) 4 -, -CH 2 CH 2 CH(CH 3 )-, and -CH 2 CH(C 2 H 5 )-.
  • R 1 and/or R 2 comprise, individually, a C 4 -Ci 2 alkyl, more typically a C 4 -C 8 alkyl.
  • the acid portion may be derived from such dibasic acids such as adipic, succinic, glutaric, oxalic, malonic, pimelic, suberic and azelaic acids, as well as mixtures thereof.
  • One or more dibasic esters used in the invention as claimed can be prepared by any appropriate process.
  • a process for preparing the adduct of adipic acid and of fusel oil is, for example, described in the document "The Use of Egyptian Fusel Oil for the Preparation of Some Plasticizers Compatible with Polyvinyl Chloride", Chuiba et al., Indian Journal of Technology, Vol. 23, August 1985, pp. 309- 311.
  • the dibasic esters can be obtained by a process comprising an "esterification" stage by reaction of a diacid of formula HOOC-A-COOH or of a diester of formula MeOOC-A-COOMe with a branched alcohol or a mixture of alcohols.
  • the reactions can be appropriately catalyzed. Use is preferably made of at least 2 molar equivalents of alcohols per diacid or diester.
  • the reactions can, if appropriate, be promoted by extraction of the reaction by-products and followed by stages of filtration and/or of purification, for example by distillation.
  • the diacids in the form of mixtures can in particular be obtained from a mixture of dinitrile compounds in particular produced and recovered in the process for the manufacture of adiponitrile by double hydrocyanation of butadiene.
  • This process used on a large scale industrially to produce the greater majority of the adiponitrile consumed worldwide, is described in numerous patents and works.
  • the reaction for the hydrocyanation of butadiene results predominantly in the formulation of linear dinitriles but also in formation of branched dinitriles, the two main ones of which are
  • the branched dinitrile compounds are separated by distillation and recovered, for example, as top fraction in a distillation column, in the stages for separation and purification of the adiponitrile.
  • the branched dinitriles can subsequently be converted to diacids or diesters (either to light diesters, for a subsequent transesterification reaction with the alcohol or the mixture of alcohols or the fusel oil, or directly to diesters in accordance with the invention).
  • the dibasic esters may be derived from one or more by-products in the production of polyamide, for example, polyamide 6,6.
  • the cleaning composition comprises a blend of linear or branched, cyclic or noncyclic, CrC 2O alkyl, aryl, alkylaryl or arylalkyl esters of adipic diacids, glutaric diacids, and succinic diacids.
  • the cleaning composition comprises a blend of linear or branched, cyclic or noncyclic, C 1 -C20 alkyl, aryl, alkylaryl or arylalkyl esters of adipic diacids, methylglutaric diacids, and ethylsuccinic diacids
  • polyamide is a copolymer prepared by a condensation reaction formed by reacting a diamine and a dicarboxylic acid.
  • polyamide 6,6 is a copolymer prepared by a condensation reaction formed by reacting a diamine, typically hexamethylenediamine, with a dicarboxylic acid, typically adipic acid.
  • the blend can be derived from one or more by-products in the reaction, synthesis and/or production of adipic acid utilized in the production of polyamide, the cleaning composition comprising a blend of dialkyl esters of adipic diacids, glutaric diacids, and succinic diacids (herein referred to sometimes as "AGS" or the “AGS blend”).
  • AGS dialkyl esters of adipic diacids, glutaric diacids, and succinic diacids
  • the blend of esters is derived from by-products in the reaction, synthesis and/or production of hexamethylenediamine utilized in the
  • the cleaning composition comprises a blend of dialkyl esters of adipic diacids, methylglutaric diacids, and ethylsuccinic diacids (herein referred to sometimes as "MGA”, “MGN”, “MGN blend” or “MGA blend”).
  • the boiling point of the dibasic ester blend is between the range of about 12O 0 C to 45O 0 C.
  • the boiling point of the blend is in the range of about 160 0 C to 400 0 C; in one embodiment, the range is about 210 0 C to 290 0 C; in another embodiment, the range is about 210 0 C to 245°C; in another embodiment, the range is the range is about 215°C to 225°C.
  • the boiling point range of the blend is between about 210 0 C to 39O 0 C, more typically in the range of about 280 0 C to 390°C, more typically in the range of 295°C to 390 0 C.
  • boiling point of the blend is in the range of about 215°C to 400 0 C, typically in the range of about 220°C to 350°C.
  • the blend of dibasic esters has a boiling point range of between about 300 0 C and 330 0 C. Typically, the diisoamyl AGS blend is associated with this boiling point range. In another embodiment, the dibasic ester blend has a boiling point range of between about 295°C and 310 0 C. Typically, the di-n-butyl AGS blend is associated with this boiling point range. Generally, a higher boiling point, typically, above 215°C, or high boiling point range corresponds to lower VOC.
  • the dibasic esters or blend of dibasic esters are incorporated into a cleaning composition which, in one embodiment, comprises (a) a blend of dialkyl esters of adipic, glutaric, and succinic diacids or a blend of dialkyl esters of adipic, methylglutaric, and ethylsuccinic diacids; (b) a biodiesel component; and, optionally, (c) water or one or more additional components.
  • the additional components in some embodiments are surfactants, for example a cationic, anionic, nonionic, amphoteric and/or zwitterionic surfactant.
  • the nonionic surfactants generally includes one or more of for example amides such as alkanolamides, ethoxylated alkanolamides, ethylene bisamides; esters such as fatty acid esters, glycerol esters, ethoxylated fatty acid esters, sorbitan esters, ethoxylated sorbitan; ethoxylates such as alkylphenol
  • ethoxylates ethoxylates, alcohol ethoxylates, tristyrylphenol ethoxylates, mercaptan ethoxylates; end-capped and EO/PO block copolymers such as ethylene oxide/propylene oxide block copolymers, chlorine capped ethoxylates, tetra-functional block copolymers;
  • amine oxides such lauramine oxide, cocamine oxide, stearamine oxide,
  • stearamidopropylamine oxide palmitamidopropylamine oxide, decylamine oxide
  • fatty alcohols such as decyl alcohol, lauryl alcohol, tridecyl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, linoleyl alcohol and linolenyl alcohol; and alkoxylated alcohols such as ethoxylated lauryl alcohol, trideceth alcohols
  • fatty acids such as lauric acid, oleic acid, stearic acid, myristic acid, cetearic acid, isostearic acid, linoleic acid, linolenic acid, ricinoleic acid, elaidic acid, arichidonic acid, myristoleic acid and mixtures thereof.
  • the non-ionic surfactant is a glycol such as polyethylene glycol (PEG), alkyl PEG esters, polypropylene glycol (PPG) and
  • PEG polyethylene glycol
  • PPG polypropylene glycol
  • the surfactant is an alcohol ethoxylate, an alkyl phenol ethoxylate or a terpene alkoxylate. In one exemplary embodiment, the surfactant is a C 6 -C 13 alcohol ethoxylate and, more typically, a C 8 -Ci 2 alcohol ethoxylate.
  • the surfactant is a cationic surfactant.
  • the cationic surfactant includes but is not limited to quaternary ammonium compounds, such as cetyl trimethyl ammonium bromide (also known as CETAB or cetrimonium bromide), cetyl trimethyl ammonium chloride (also known as cetrimonium chloride), myristyl trimethyl ammonium bromide (also known as myrtrimonium bromide or Quaternium-13), stearyl dimethyl distearyldimonium chloride, dicetyl dimonium chloride, stearyl octyldimonium methosulfate, dihydrogenated palmoylethyl hydroxyethylmonium methosulfate, isostearyl benzylimidonium chloride, cocoyl benzyl hydroxyethyl imidazolinium chloride, dicetyl dimonium chloride and distearyldimonium chlor
  • the surfactant is an anionic surfactant.
  • the anionic surfactant includes but is not limited to linear alkylbenzene sulfonates, alpha olefin sulfonates, paraffin sulfonates, alkyl ester sulfonates, alkyl sulfates, alkyl alkoxy sulfates, alkyl sulfonates, alkyl alkoxy carboxylates, alkyl alkoxylated sulfates, monoalkyl phosphates, dialkyl phosphates, sarcosinates, sulfosuccinates, isethionates, and taurates, as well as mixtures thereof.
  • anionic surfactants that are suitable as the anionic surfactant component of the composition include, for example, ammonium lauryl sulfate, ammonium laureth sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, lauric monoglyceride sodium sulfate, sodium lauryl sulfate, sodium laureth sulfate, potassium lauryl sulfate, potassium laureth sulfate, sodium-monoalkyl phosphates, sodium dialkyl phosphates, sodium lauroyl sarcosinate, lauroyl sarcosine, cocoyl
  • Branched anionic surfactants are particularly preferred, such as sodium trideceth sulfate, sodium tridecyl sulfate, ammonium trideceth sulfate, ammonium tridecyl sulfate, and sodium trideceth carboxylate.
  • amphoteric surfactant that is acceptable for use includes but is not limited to derivatives of aliphatic secondary and tertiary amines in which the aliphatic radical can be straight chain or branched and wherein one of the aliphatic substituents contains from about 8 to about 18 carbon atoms and one contains an anionic water solubilizing group.
  • suitable amphoteric surfactants include the alkali metal, alkaline earth metal, ammonium or substituted ammonium salts of alkyl amphocarboxy glycinates and alkyl amphocarboxypropionates, alkyl
  • amphodipropionates alkyl amphodiacetates, alkyl amphoglycinates, and alkyl amphopropionates, as well as alkyl iminopropionates, alkyl iminodipropionates, and alkyl amphopropylsulfonates , such as for example, cocoamphoacetate
  • cocoamphopropionate cocoamphodiacetate, lauroamphoacetate, lauroamphodiacetate , lauroamphodipropionate, lauroamphodiacetate, cocoamphopropyl sulfonate
  • caproamphodiacetate caproamphoacetate
  • caproamphodipropionate caproamphodipropionate
  • Suitable zwitterionic surfactants include alkyl betaines, such as cocodimethyl carboxymethyl betaine, lauryl dimethyl carboxymethyl betaine, lauryl dimethyl alpha- carboxy-ethyl betaine, cetyl dimethyl carboxymethyl betaine, lauryl bis-(2-hydroxy- ethyl)carboxy methyl betaine, stearyl bis-(2-hydroxy-propyl)carboxymethyl betaine, oleyl dimethyl gamma-carboxypropyl betaine, and lauryl bis-(2-hydroxypropyl)alpha- carboxyethyl betaine, amidopropyl betaines, and alkyl sultaines, such as cocodimethyl sulfopropyl betaine, stearyldimethyl sulfopropyl betaine, lauryl dimethyl sulfoethyl betaine, lauryl bis-(2-hydroxy-ethyl)sulfopropyl
  • the cleaning composition comprises (a) a blend of about 70-90% dialkyl dimethylglutarate, about 5-30% dialkyl ethylsuccinate and about 0-10% dialkyl adipate; (b) a biodiesel component comprising one or more fatty acid alkyl esters and (d) water.
  • Each alkyl substituent of the blend is individually chosen from a hydrocarbon group containing from about 1 to 8 hydrocarbons such as methyl or ethyl, propyl, isopropyl, butyl, n-butyl or pentyl, or iso-amyl groups.
  • additives or additional components such as surfactants, delaminating agents, buffering and/or pH control agents, fragrances, opacifying agents, anti-corrosion agents, whiteners, defoamers, dyes, sudsing control agents, stabilizers, thickeners and the like can be added to the composition.
  • the blend of dibasic esters corresponds to one or more by-products of the preparation of adipic acid, which is one of the main monomers in polyamides.
  • the dialkyl esters are obtained by esterification of one by-product, which generally contains, on a weight basis, from 15 to 33% succinic acid, from 50 to 75% glutaric acid and from 5 to 30% adipic acid.
  • the dialkyl esters are obtained by esterification of a second by-product, which generally contains, on a weight basis, from 30 to 95% methyl glutaric acid, from 5 to 20% ethyl succinic acid and from 1 to 10% adipic acid.
  • the acid portion may be derived from such dibasic acids such as, adipic, succinic, glutaric, oxalic, malonic, pimelic, suberic and azelaic acids, as well as mixtures thereof.
  • the dibasic ester blend comprises adducts of alcohol and linear diacids, the adducts having the formula R-OOC-A-COO-R wherein R is ethyl and A is a mixture of -(CH 2 V, -(CH 2 )3, and -(CH 2 )2--
  • the blend comprises adducts of alcohol, typically ethanol, and linear diacids, the adducts having the formula R 1 -OOC-A-COO-R 2 , wherein at least part of R 1 and/or R 2 are residues of at least one linear alcohol having 4 carbon atoms, and/or at least one linear or branched alcohol having at least 5 carbon atoms, and wherein A is a divalent linear hydrocarbon.
  • A is one or a mixture of -(CH 2 J 4 -, -(CH 2 ) 3 , and -(CH 2 J 2 -.
  • the R 1 and/or R 2 groups can be linear or branched, cyclic or noncyclic, Ci-C 2 o alkyl, aryl, alkylaryl or arylalkyl groups.
  • the R 1 and/or R 2 groups can be C-i-C ⁇ groups, for example groups chosen from the methyl, ethyl, n-propyl, isopropyl, n-butyl, n-amyl, n-hexyl, cyclohexyl, 2-ethylhexyl and isooctyl groups and their mixtures.
  • R 1 and/or R 2 can both or individually be ethyl groups, R 1 and/or R 2 can both or individually be n-propyl groups, R 1 and/or R 2 can both or individually be isopropyl groups, R 1 and/or R 2 can both or individually be n-butyl groups, R 1 and/or R 2 can both or individually be iso-amyl groups, R 1 and/or R 2 can both or individually be n-amyl groups, or R 1 and/or R 2 can be mixtures thereof (e.g., when comprising a blend of dibasic esters).
  • the invention can include blends comprising adducts of branched diacids, the adducts having the formula R 3 -OOC-A-COO-R 4 wherein R 3 and R 4 are the same or different alkyl groups and A is a branched or linear hydrocarbon.
  • A comprises an isomer of a C 4 hydrocarbon. Examples include those where R 3 and/or R 4 can be linear or branched, cyclic or noncyclic, CrC 2 Q alkyl, aryl, alkylaryl or arylalkyl groups.
  • R 3 and R 4 are independently selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, n-butyl, iso-butyl, iso-amyl, and fusel.
  • the invention comprises a composition based on dicarboxylic acid diester(s) of formula R 5 -OOC-A-COO-R 6 wherein group A represents a divalent alkylene group typically in the range of, on average, from 2.5 to 10 carbon atoms.
  • R 5 and R 6 groups which can be identical or different, represent a linear or branched, cyclic or noncyclic, Ci-C 2O alkyl, aryl, alkylaryl or an arylalkyl group.
  • the blend can correspond to a complex reaction product, where mixtures of reactants are used.
  • the reaction of a mixture of HOOC-A a -COOH and HOOC-A b -COOH with an alcohol R a -OH can give a mixture of the products R a OOC-A a - COOR a and R a OOC-A b -COOR a .
  • reaction of HOOC-A a -COOH with a mixture of alcohols R a -OH and R b -OH can give a mixture of the products R a OOC-A a - COOR a and R b OOC-A a -COOR b , R a OOC-A a -COOR b and R b OOC-A a -COOR a (different from R a OOC-A a -COOR b if A a is not symmetrical).
  • reaction of a mixture of HOOC-A a -COOH and HOOC-A b -COOH with a mixture of alcohols R a -OH and R b -OH can give a mixture of the products R a OOC-A a -COOR a and R b OOC-A a -COOR b , R 3 OOC- A a -COOR b , R b OOC-A a -COOR a (different from R a OOC-A a -COOR b if A a is not
  • the groups R 1 and R 2 can correspond to alcohols R 1 -OH and R 2 -OH
  • the groups can be likened to the alcohols.
  • the group(s) A can correspond to one or more dicarboxylic acid(s) HOOC-A-COOH.
  • the group(s) A can be likened to the corresponding diacid(s) (the diacid comprises 2 more carbon atoms than the group A).
  • group A is a divalent alkylene group comprising, on average, more than 2 carbon atoms. It can be a single group, with an integral number of carbon atoms of greater than or equal to 3, for example equal to 3 or 4. Such a single group can correspond to the use of a single acid. Typically, however, it corresponds to a mixture of groups corresponding to a mixture of compounds, at least one of which exhibits at least 3 carbon atoms. It is understood that the mixtures of groups A can correspond to mixtures of different isomeric groups comprising an identical number of carbon atoms and/or of different groups comprising different numbers of carbon atoms.
  • the group A can comprise linear and/or branched groups.
  • A corresponds to a group of formula -(CH 2 ) n - where n is a mean number greater than or equal to 3. At least a portion of the groups A can be groups of formula -(CH 2 ) 4 - (the corresponding acid is adipic acid). For example, A can be a group of formula -(CH 2 ) 4 -, and/or a group of formula -(CH 2 ) 3 -.
  • the composition comprises compounds of formula R- OOC-A-COO-R where A is a group of formula -(CH 2 ) 4 -, compounds of formula R-OOC- A-COO-R where A is a group of formula -(CH 2 ) 3 -, and compounds of formula R-OOC-A- COO-R where A is a group of formula -(CH 2 ) 2 -.
  • the emulsion is semi-transparent.
  • the emulsion may have, for example, a transmittance of at least 90% and preferably of at least 95% at a wavelength of 600 nm, for example measured using a Lambda 40 UV- visible spectrometer.
  • the emulsion comprises a mean droplet size is greater than or equal to 0.15 ⁇ m, for example greater than 0.5 ⁇ m, or 1 ⁇ m, or
  • the droplet size may be measured by optical microscopy and/or laser granulometry (Horiba LA-910 laser scattering analyzer).
  • the dibasic ester blend comprises:
  • Ri and/or R 2 can individually comprise a hydrocarbon having from about 1 to about 8 carbon atoms, typically, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, n-butyl, isoamyl, hexyl, heptyl or octyl.
  • the blend typically comprises (by weight of the blend) (i) about 15% to about 35% of the diester of formula I, (ii) about 55% to about 70% of the diester of formula II, and (iii) about 7% to about 20% of the diester of formula III, and more typically, (i) about 20% to about 28% of the diester of formula I, (ii) about 59% to about 67% of the diester of formula II, and (iii) about 9% to about 17% of the diester of formula III.
  • the blend is generally characterized by a flash point of 98 0 C, a vapor pressure at 20 0 C of less than about 10 Pa, and a distillation temperature range of about 200-300 0 C. Mention may also be made of Rhodiasolv® RPDE (Rhodia Inc., Cranbury, NJ), Rhodiasolv® DIB (Rhodia Inc., Cranbury, NJ) and Rhodiasolv® DEE (Rhodia Inc., Cranbury, NJ).
  • the dibasic ester blend comprises:
  • Ri and/or R 2 can individually comprise a hydrocarbon having from about 1 to about 8 carbon atoms, typically, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, n-butyl, isoamyl, hexyl, heptyl, or octyl.
  • the blend typically comprises (by weight of the blend) (i) from about 5% to about 30% of the diester of formula IV, (ii) from about 70% to about 95% of the diester of formula V, and (iii) from about 0% to about 10% of the diester of formula Vl.
  • the blend typically comprises (by weight of the blend): (i) from about 6% to about 12% of the diester of formula IV, (ii) from about 86% to about 92% of the diester of formula V, and (iii) from about 0.5% to about 4% of the diester of formula Vl.
  • the blend comprises (by weight of the blend): (i) about 9% of the diester of formula IV, (ii) about 89% of the diester of formula V, and (iii) about 1 % of the diester of formula Vl.
  • the blend is generally characterized by a flash point of of 98 0 C, a vapor pressure at 20 0 C of less than about 10 Pa, and a distillation temperature range of about 200-275 0 C. Mention may be made of Rhodiasolv® IRIS and
  • Rhodiasolv® DEE/M manufactured by Rhodia Inc. (manufactured by Rhodia Inc., Cranbury, NJ).
  • fatty acid alkyl esters utilized i correspond to formula:
  • Ri and R 2 are each, individually a linear or branched hydrocarobon group containing from about 1 to about 45 carbon groups.
  • the esters are derived from saturated and/or unsaturated fatty acids containing 1 to 45 carbon atoms and alcohols containing 1 to 15 carbon groups/atoms.
  • Typical examples include but are not limited to methyl, ethyl, propyl, butyl and/or stearyl esters of caproic acid, caprylic acid, 2- ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselic acid, linoleic acid, linolenic acid, elaeostearic acid, arachic acid, gadoleic acid, behenic acid and erucic acid and the technical mixtures thereof. Cocofatty acid and/or tallow fatty acid alkyl esters can be utilized.
  • Fatty acid alkyl esters can be made from esterification according to known methods, for example, via esterification of fatty acids with an alcohol and an acidic catalyst.
  • fatty acid methyl esters can be obtained by first esterifying the free fatty acids present in the starting material in the presence of acidic catalysts with excess methanol or a suitable alcohol, separating an alcohol phase containing the catalyst, extracting the remaining oil phase (triglyceride phase) with a glycerol-alcohol mixture and subjecting the treated oil phase to an alkali-catalyzed transesterification with alcohol.
  • Any suitable fats and oils of vegetable and animal origin can used as starting material and transesterified as the triglycerides utilized, for example: rape-seed oil, soy bean oil, sunflower oil, tallow, palm oil and palm fat, castor oil, coconut oil and coconut fat, olive oil, peanut oil, safflower oil, linseed oil, purgative nut oil, cotton seed oil, rice oil, lard, among others.
  • water can include but is not limited to tap water, filtered water, bottled water, spring water, distilled water, deionized water, and/or industrial soft water.
  • the solvent can include organic or nonorganic solvents, including but not limited to aliphatic or acyclic hydrocarbons solvents, halogenated solvents, aromatic hydrocarbon solvents, glycol ether, a cyclic terpene, unsaturated hydrocarbon solvents, halocarbon solvents, polyols, ethers, esters of a glycol ether, alcohols including short chain alcohols, ketones or mixtures thereof.
  • additional surfactants may be utilized.
  • Surfactants that are useful for preparing the emulsions can be one or more anionic surfactants, cationic surfactants, non-ionic surfactants, zwitterionic surfactants, amphoteric surfactants.
  • additional components or additives may be added to the cleaning composition.
  • the additional components include, but are not limited to, delaminates, buffering and/or pH control agents, fragrances, perfumes, defoamers, dyes, whiteners, brighteners, solubilizing materials, stabilizers, thickeners, corrosion inhibitors, lotions and/or mineral oils, enzymes, cloud point modifiers, preservatives, ion exchangers, chelating agents, sudsing control agents, soil removal agents, softening agents, opacifiers, inert diluents, graying inhibitors, stabilizers, polymers and the like.
  • additional components comprise one or more delaminates.
  • Delaminates can be certain terpene-based derivatives that can include, but are not limited to, pinene and pinene derivatives, d-limonene, dipentene and oc-pinene.
  • the buffering and pH control agents include for example, organic acids, mineral acids, as well as alkali metal and alkaline earth salts of silicate, metasilicate, polysilicate, borate, carbonate, carbamate, phosphate, polyphosphate, pyrophosphates, triphosphates, ammonia, hydroxide, monoethanolamine, monopropanolamine, diethanolamine, dipropanolamine, triethanolamine, and/or 2-amino-2methylpropanol.
  • the buffering agent can be a detergent or a low molecular weight, organic or inorganic material used for maintaining the desired pH.
  • the buffer can be alkaline, acidic or neutral, including but not limited to 2-amino-2-methyl-propanol; 2-amino-2-methyl-1 ,3-propanol; disodium glutamate; methyl diethanolarnide; N,N-bis(2- hydroxyethyl)glycine; tris(hydroxymethyl)methyl glycine; ammonium carbamate; citric acid; acetic acid; ammonia; alkali metal carbonates; and/or alkali metal phosphates.
  • thickeners when used, include, but are not limited to, cassia gum, tara gum, xanthan gum, locust beam gum, carrageenan gum, gum karaya, gum arabic, hyaluronic acids, succinoglycan, pectin, crystalline
  • polysaccharides branched polysaccharide, calcium carbonate, aluminum oxide, alginates, guar gum, hydroxypropyl guar gum, carboxymethyl guar gum,
  • hydroxycelluloses hydroxyalkyl cellulose, including hydroxyethyl cellulose,
  • the whiteners include, but are not limited to, percarbonates, peracids, perborates, chlorine-generating substances hydrogen peroxide, and/or hydrogen peroxide-based compounds.
  • the polymer is generally a water soluble or dispersable polymer having a weight average molecular weight of generally below 2,000,000.
  • dibasic esters are subject to hydrolysis under certain conditions, it is understood that the blend of dibasic esters can contain a minute amount of alcohol, typically a low molecular weight alcohol such as ethanol, in concentrations of about 2% to about 0.2%.
  • alcohol typically a low molecular weight alcohol such as ethanol
  • a generally contemplated composition in one embodiment, comprises (based on the total weight of the composition) (a) from about 1% to about 99% by weight a blend of dibasic esters and (b) from about 1% to about 75% by weight one or more biodiesel components.
  • the composition may optionally contain water or a solvent in varying amounts, depending on the desired concentration. For example, it may be desirable to have the composition as a concentrated composition for shipping, transportation purposes as well as for other cost savings. It may also be desirable to have the composition in fully diluted form.
  • the composition is hydrolytically stable, typically up to 6 months or greater, more typically up to 12 months or greater for the diluted form and longer in the concentrated form.
  • the formulations which contain the dibasic ester blends, typically, MGN blends, have hydrolysis stability, where hydrolysis/decomposition typically produces the acid form of the ester and methanol.
  • the methanol concentration of the formulation comprising the described dibasic ester blend was monitored and shown to generally be stable, typically less than 300 ppm (parts per million), more typically less than or about 250 ppm, typically at or less than about 210 ppm.
  • the cleaning composition comprises: from about 1% to about 95% by weight a blend of dibasic esters; from about 1% to about 50% by weight one or more biodiesel components; and, optionally, water; more typically, from about 25% to about 90% by weight a blend of dibasic esters; (b) from about 1% to about 45% by weight one or more biodiesel components; and, optionally, (c) water.
  • additives such as fragrances and solubilizers, pH adjusting agents, whiteners, delaminates, opacifying agent, anti-corrosion agents, anti-foaming agents, coloring agents, stabilizers and thickeners can be added.
  • the cleaning composition is typically in form of an emulsion and provided as a liquid or spray formulation for use, depending upon the application.
  • the cleaning composition can also be provided as a liquid or spray formulation for use, depending upon the application.
  • disclosed is a method of cleaning paper processing equipment using the cleaning composition.
  • the paper processing equipment can be for example the wire mesh, the conveyor or other equipment used in the process of converting raw pulp material into paper sheets or in the process of recycling paper and paper products.
  • the cleaning composition (comprising the DBE blend and a fatty acid methyl ester) has a synergistic effect on removing material from the mesh while maintaining a lower viscosity and freezing point than pure FAME.
  • Testing was done by spraying a 4"x6" piece of nylon mesh that was clogged during the papermaking process with 30Og of the solvent/composition (90% IRIS and 10% FAME). The sprayer was maintained at 8" from the center of the nylon mesh which was held at a 45° angle from the spray head. The pressure was 12 psi which about a factor of 33 less than the 400 psi that is run in the paper plant. The rinsate solvent was examined for clarity/visual turbidity as shown in Figure 1.

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JP2013533335A (ja) * 2010-06-02 2013-08-22 ロディア オペレーションズ 環境に優しいマイクロエマルジョンの油清浄用途における使用
US20140046101A1 (en) * 2012-08-08 2014-02-13 University Of Louisville Research Foundation, Inc. Process for the Production of Hydrocarbons for Fuels, Solvents, and Other Hydrocarbon Products
WO2015108872A1 (en) 2014-01-16 2015-07-23 Elevance Renewable Sciences, Inc. Olefinic ester compositions and their use as cleaning agents

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WO2000045776A1 (en) * 1999-01-20 2000-08-10 Bozena Olsson Agent for removing adhesive products
WO2000077135A2 (en) * 1999-06-11 2000-12-21 Raytheon Company Liquid carbon dioxide cleaning utilizing natural and modified natural solvents

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US5891835A (en) * 1998-03-17 1999-04-06 Dotolo Research Corporation Cleaner impregnated towel
WO2000055286A2 (en) * 1999-03-18 2000-09-21 Mark Gary Mullane Cleaning formulation
US6191087B1 (en) * 1999-09-03 2001-02-20 Vertec Biosolvents, Llc Environmentally friendly solvent
JP2005002179A (ja) * 2003-06-11 2005-01-06 Techno Guard Kk 油性成分用洗浄除去剤およびこれを使用した洗浄方法

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WO2000045776A1 (en) * 1999-01-20 2000-08-10 Bozena Olsson Agent for removing adhesive products
WO2000077135A2 (en) * 1999-06-11 2000-12-21 Raytheon Company Liquid carbon dioxide cleaning utilizing natural and modified natural solvents

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