EP1497405A1 - Composition comprenant un melange de mono- et polylactyllactate d'alkyle - Google Patents
Composition comprenant un melange de mono- et polylactyllactate d'alkyleInfo
- Publication number
- EP1497405A1 EP1497405A1 EP03725293A EP03725293A EP1497405A1 EP 1497405 A1 EP1497405 A1 EP 1497405A1 EP 03725293 A EP03725293 A EP 03725293A EP 03725293 A EP03725293 A EP 03725293A EP 1497405 A1 EP1497405 A1 EP 1497405A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alkyl
- weight
- parts
- composition
- mixture
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 125000000217 alkyl group Chemical group 0.000 title claims abstract description 18
- 238000005238 degreasing Methods 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- -1 alkyl radical Chemical class 0.000 claims description 24
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 claims description 4
- 239000012459 cleaning agent Substances 0.000 claims description 4
- IKRARXXOLDCMCX-UHFFFAOYSA-N butyl 2-butoxypropanoate Chemical group CCCCOC(C)C(=O)OCCCC IKRARXXOLDCMCX-UHFFFAOYSA-N 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 claims description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- OZZQHCBFUVFZGT-UHFFFAOYSA-N 2-(2-hydroxypropanoyloxy)propanoic acid Chemical compound CC(O)C(=O)OC(C)C(O)=O OZZQHCBFUVFZGT-UHFFFAOYSA-N 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 4
- 150000003893 lactate salts Chemical class 0.000 abstract 2
- UUFQTNFCRMXOAE-UHFFFAOYSA-N 1-methylmethylene Chemical compound C[CH] UUFQTNFCRMXOAE-UHFFFAOYSA-N 0.000 abstract 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 70
- 239000004310 lactic acid Substances 0.000 description 35
- 235000014655 lactic acid Nutrition 0.000 description 35
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 34
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 235000019441 ethanol Nutrition 0.000 description 15
- 229940116333 ethyl lactate Drugs 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 238000004821 distillation Methods 0.000 description 8
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 238000005886 esterification reaction Methods 0.000 description 6
- 229920001429 chelating resin Polymers 0.000 description 5
- 230000032050 esterification Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000012429 reaction media Substances 0.000 description 5
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- ZCHWSOYFFAYRLF-UHFFFAOYSA-N ethyl 2,4-dihydroxy-2-methyl-3-oxopentanoate Chemical compound CCOC(=O)C(C)(O)C(=O)C(C)O ZCHWSOYFFAYRLF-UHFFFAOYSA-N 0.000 description 3
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 description 3
- 230000009965 odorless effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 238000005809 transesterification reaction Methods 0.000 description 3
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005237 degreasing agent Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- YOBOXHGSEJBUPB-MTOQALJVSA-N (z)-4-hydroxypent-3-en-2-one;zirconium Chemical compound [Zr].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O YOBOXHGSEJBUPB-MTOQALJVSA-N 0.000 description 1
- KYXHKHDZJSDWEF-LHLOQNFPSA-N CCCCCCC1=C(CCCCCC)C(\C=C\CCCCCCCC(O)=O)C(CCCCCCCC(O)=O)CC1 Chemical compound CCCCCCC1=C(CCCCCC)C(\C=C\CCCCCCCC(O)=O)C(CCCCCCCC(O)=O)CC1 KYXHKHDZJSDWEF-LHLOQNFPSA-N 0.000 description 1
- 238000001159 Fisher's combined probability test Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- QHSOPRDTEVSEST-UHFFFAOYSA-N ethyl 2,5-dihydroxy-2-(2-hydroxypropanoyl)-4-oxohexanoate Chemical compound CCOC(=O)C(O)(C(=O)C(C)O)CC(=O)C(C)O QHSOPRDTEVSEST-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- SWQJXJOGLNCZEY-NJFSPNSNSA-N helium-6 atom Chemical compound [6He] SWQJXJOGLNCZEY-NJFSPNSNSA-N 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 150000003903 lactic acid esters Chemical group 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- PIILXFBHQILWPS-UHFFFAOYSA-N tributyltin Chemical compound CCCC[Sn](CCCC)CCCC PIILXFBHQILWPS-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
-
- 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
Definitions
- the present invention relates to an oligo-eric composition of lactic acid esters comprising a mixture of alkyl mono- and polylactyllactates of formula:
- the invention relates more particularly to a composition of ethyl mono- and polylactyllactates.
- This composition can be used alone or in combination with other solvents, in particular, as agents for cleaning and degreasing in a machine and in a non-aqueous medium of solid surfaces such as metal parts, ceramics, glass, plastics having been soiled with oils or greases from machining and / or their temporary protection. They can also be used for defluxing printed circuits. This defluxing operation consisting in eliminating the flux of solder.
- the cleaning and / or degreasing agents must have other characteristics such as in particular having a high flash point, a low toxicity, being odorless and not releasing volatile organic compounds into the atmosphere ( VOCs).
- composition of the present invention broadly meets the criteria mentioned above.
- composition of the present invention can also be used for obtaining lactides - cyclic dimers - which are the precursors of choice for obtaining polylactides used as biomaterials.
- HV Claborn (US 2,371,281) describes a process for obtaining alkyl lactyllactate by reacting the lactide (3,6-dimethyl-1,4-dioxane-2,5-dione) with an alcohol l- ⁇ OH according to the reaction: * R'OH * ⁇ CH 3 - CH (OH) C (0) OCH (CH 3 ) C0 2 P. (1)
- the main fraction (78 g) identified as ethyl lactyllactate is a slightly viscous, colorless and odorless liquid which distills at 110 ° C - 113 ° C under 7.5 mmHg.
- alkyl lactyllactate usually being of the order of 5% to 20% depends on the alcohol / lactic acid ratio used during the esterification of said lactic acid.
- the subject of the present invention is therefore a composition comprising a mixture of alkyl mono- and polylactyllactates of formula: 0
- R represents an alkyl radical having a number of carbon atoms ranging from 1 to 4 and n is an integer equal to 2, 3 or 4.
- the alkyl radical is a methyl, propyl, isopropyl or n-butyl methyl radical.
- the alkyl radical is an ethyl radical.
- composition according to the invention may also contain an alkyl lactate of formula CH 3 CH (OH) CO 2 R (II) in which R has the same meaning as in formula (I), in particular at 0, 1 to 1 part by weight per 100 parts by weight of the mixture L 2 A + L 3 A + L 4 A.
- composition of the present invention can be obtained by total conversion esterification of a previously concentrated commercial lactic acid solution, said total conversion being obtained by eliminating the water formed by distillation. azeotropic.
- the concentration of commercial lactic acid solutions can be carried out by simple evaporation in one or more stages, at a temperature ranging from 100 ° C. to 170 ° C., at atmospheric pressure or under reduced pressure, until a composition is obtained.
- lactic acid with a desired total lactic acid (LAT) content The LAT corresponds to the mass of monomeric lactic acid contained in 100 g of the lactic acid composition.
- This mass is determined after saponification at a determined weight (0.1 to 0.3 g) of the oligomeric composition. After neutralization of the reaction mixture, it is analyzed by the high performance liquid chromatography (HPLC) technique with refractometric detection. This analysis can be carried out on a cation exchange column of the "SHODEX SH 1011" type in using N / 100 sulfuric acid as eluent. This technique makes it possible to determine the mass of monomeric lactic acid contained in the sample tested and by simple calculation, the LAT.
- HPLC high performance liquid chromatography
- the concentration reaction is followed by measuring the weight of water removed and the amount of water in the concentrate determined by the Karl Fisher water assay method.
- the esterification is carried out conventionally in the presence of an acid catalyst chosen in particular from the group comprising sulfuric acid, phosphoric acid, para-toluene sulfonic acid, methane sulfonic acid as well as the resins acids such as for example Amberlyst A15.
- an acid catalyst chosen in particular from the group comprising sulfuric acid, phosphoric acid, para-toluene sulfonic acid, methane sulfonic acid as well as the resins acids such as for example Amberlyst A15.
- the water is removed by azeotropic distillation.
- azeotropic trainers which can be used according to the present invention, mention will be made of cyclohexane and toluene.
- cyclohexane will be used.
- the total conversion esterification of the concentrated lactic acid solution is carried out at temperatures between 70 ° C and 100 ° C at atmospheric pressure and with an alcohol / lactic acid molar ratio ranging from 1.3 to 2.
- reaction medium is subjected to a basic treatment in order to neutralize the acid catalyst.
- this treatment is carried out on a basic resin bed such as on Amberlyst A21 resin, which resin bed is washed with a solvent such as an alkyl lactact.
- the products of the composition according to the invention were identified by gas chromatography (GC) coupled to a mass spectrometer.
- GC gas chromatography
- composition of the invention can also be obtained from an alkyl lactate of formula (II) by transesterification in the presence of a catalyst chosen from alkyl orthotitanates such as ethyl orthotitanate, l zirconium acetylacetonate, tributyltin, strong bases such as KOH, NaOH, quaternary ammonium hydroxides.
- a catalyst chosen from alkyl orthotitanates such as ethyl orthotitanate, l zirconium acetylacetonate, tributyltin, strong bases such as KOH, NaOH, quaternary ammonium hydroxides.
- reaction medium is treated in a known manner in order to eliminate the catalyst used.
- the reaction medium is then concentrated under reduced pressure so as to remove the unconverted alkyl lactate.
- composition of the present invention is a colorless, odorless liquid with a flash point above 100 ° C.
- a commercial lactic acid composition is used having a total lactic acid content -LAT- of 88.7 and a free water content of 13.3%.
- the LAT corresponds to the mass of monomeric lactic acid contained in 100 g of the lactic acid composition.
- the LAT is determined as described above.
- lactic acid is concentrated until a desired LAT is obtained.
- the commercial composition of lactic acid to be concentrated is introduced into a rotary evaporator and then the water is removed under 100 mbar at a temperature ranging from 60 ° C to 130 ° C.
- the reaction is followed by measuring the amount of water removed and the percentage of water in the concentrate determined by the Karl Fisher method.
- Example 1 In a 250 ml reactor, equipped with a thermostatically controlled heating system, with a temperature measurement, and connected to an adiabatic distillation column of 10 theoretical plates connected to a variable reflux column head, the following is introduced :
- the condensates at the top of the column are partly returned to the distillation column, partly to a decanter.
- the light decantation phase is recycled to the boiler, the heavy phase is eliminated.
- the reflux rate is brought so as to distill the ternary azeotrope cyclohexane / ethanol / water (75.5% / 19.7% / 4.8%) whose boiling point is 61.2 ° C. Care should be taken throughout the reaction not to exceed this temperature at the top of the column by more than 0.3 to 0.4 ° C. For this, the reflux rate will be adjusted during the course of handling. 123 g of aqueous phase are eliminated at 18% water. To compensate for the loss of ethanol in the heavy phase, during the reaction, 80 g of ethanol are gradually introduced into the boiler using a pump.
- the reaction is monitored by dosing on successive samples from the boiler: - dosing of water by the Karl Fischer method,
- the reaction lasts approximately 3:30.
- the end-of-reaction criterion is as follows:% H + (expressed as lactic acid) ⁇ 0.5%.
- the medium is cooled and the reaction mixture is treated with 10 g of a strong basic resin of the Amberlyst type No. A21 which is rinsed with 10 g of ethyl lactate.
- the oligomeric ethyl lactate composition is determined by CP ⁇ . - Chromatograph: HP 5890
- the mixture is brought to reflux under atmospheric pressure and the liberated ethanol is gradually distilled, ie 17.3 g in 3 hours.
- the wire mesh is cleaned with methylene chloride with the precautions associated with methylene chloride.
- the grid is rinsed with the solvent to be evaluated, then is weighed and finally dried.
- a brush distribute about 2 g of dirt (weighed precisely) consisting, by weight, of:
- the grid is then immersed in 50 ml of mixture to be evaluated with stirring (500 rpm). At the same time, a stopwatch is started.
- the grid is raised to 1, 3, 5, 7 '30, 10, 12' 30, 15 min then is weighed at time (t) without stopping the stopwatch (duration of this manipulation approximately 20 seconds).
- the 90% efficiency time is 45 min.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Emergency Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0204591A FR2838435B1 (fr) | 2002-04-12 | 2002-04-12 | Composition comprenant un melange de mono et polylactyllactates d'alkyle |
| FR0204591 | 2002-04-12 | ||
| PCT/FR2003/000843 WO2003087284A1 (fr) | 2002-04-12 | 2003-03-17 | Composition comprenant un melange de mono- et polylactyllactate d' alkyle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1497405A1 true EP1497405A1 (fr) | 2005-01-19 |
| EP1497405B1 EP1497405B1 (fr) | 2006-10-04 |
Family
ID=28459780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03725293A Expired - Lifetime EP1497405B1 (fr) | 2002-04-12 | 2003-03-17 | Composition comprenant un melange de mono- et polylactyllactate d'alkyle |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20050215453A1 (fr) |
| EP (1) | EP1497405B1 (fr) |
| JP (1) | JP2005522570A (fr) |
| AT (1) | ATE341609T1 (fr) |
| AU (1) | AU2003227839A1 (fr) |
| DE (1) | DE60308854T2 (fr) |
| ES (1) | ES2274230T3 (fr) |
| FR (1) | FR2838435B1 (fr) |
| WO (1) | WO2003087284A1 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2885536B1 (fr) | 2005-05-12 | 2007-07-27 | Roquette Freres | Composition a base d'ethers de dianhydrohexitol pour le traitement d'une matiere autre que le corps humain |
| WO2008006076A2 (fr) | 2006-07-06 | 2008-01-10 | Stepan Company | Alkyl lactyl lactates et leurs procédés de préparation |
| WO2008006058A2 (fr) * | 2006-07-06 | 2008-01-10 | Stepan Company | Compositions de solvants d'alkyl lactyl lactate |
| EP2810640A1 (fr) | 2013-06-03 | 2014-12-10 | Basf Se | Esters d'acides oligohydroxycarboniques et leur utilisation |
| EP3250547B1 (fr) * | 2015-01-29 | 2019-05-01 | Council of Scientific and Industrial Research | Nouveau procédé de préparation d'esters à fonction hydroxyle et de polyesters à partir de ceux-ci |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2371281A (en) * | 1945-03-13 | Lactyuactic esters and process of | ||
| US5124166A (en) * | 1987-08-13 | 1992-06-23 | Nabisco, Inc. | Carboxy/carboxylate disubstituted esters as edible fat mimetics |
| EP0539398A1 (fr) * | 1990-07-16 | 1993-05-05 | E.I. Du Pont De Nemours And Company | Materiaux mousses degradables |
| US6452051B1 (en) * | 1996-02-22 | 2002-09-17 | Cargill, Inc. | Process for the production of a condensation products of a carboxylic acid |
| US6664413B1 (en) * | 1998-11-19 | 2003-12-16 | A. E. Staley Manufacturing Co. | Process for production of esters |
| US6191087B1 (en) * | 1999-09-03 | 2001-02-20 | Vertec Biosolvents, Llc | Environmentally friendly solvent |
| US6284720B1 (en) * | 1999-09-03 | 2001-09-04 | Vertec Biosolvents, Llc | Environmentally friendly ink cleaning preparation |
| FR2802923B1 (fr) * | 1999-12-28 | 2002-03-08 | Roquette Freres | Procede de preparation d'une composition d'ester d'acide lactique et son utilisation en tant que solvant |
-
2002
- 2002-04-12 FR FR0204591A patent/FR2838435B1/fr not_active Expired - Fee Related
-
2003
- 2003-03-17 JP JP2003584228A patent/JP2005522570A/ja active Pending
- 2003-03-17 US US10/510,929 patent/US20050215453A1/en not_active Abandoned
- 2003-03-17 EP EP03725293A patent/EP1497405B1/fr not_active Expired - Lifetime
- 2003-03-17 AU AU2003227839A patent/AU2003227839A1/en not_active Abandoned
- 2003-03-17 DE DE60308854T patent/DE60308854T2/de not_active Expired - Fee Related
- 2003-03-17 WO PCT/FR2003/000843 patent/WO2003087284A1/fr not_active Ceased
- 2003-03-17 ES ES03725293T patent/ES2274230T3/es not_active Expired - Lifetime
- 2003-03-17 AT AT03725293T patent/ATE341609T1/de not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03087284A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003227839A1 (en) | 2003-10-27 |
| US20050215453A1 (en) | 2005-09-29 |
| ES2274230T3 (es) | 2007-05-16 |
| FR2838435B1 (fr) | 2004-06-18 |
| WO2003087284A1 (fr) | 2003-10-23 |
| EP1497405B1 (fr) | 2006-10-04 |
| DE60308854D1 (de) | 2006-11-16 |
| DE60308854T2 (de) | 2007-08-30 |
| JP2005522570A (ja) | 2005-07-28 |
| ATE341609T1 (de) | 2006-10-15 |
| FR2838435A1 (fr) | 2003-10-17 |
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