WO2021023840A1 - Molecule portant une fonction oxyde de nitrile - Google Patents
Molecule portant une fonction oxyde de nitrile Download PDFInfo
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- WO2021023840A1 WO2021023840A1 PCT/EP2020/072188 EP2020072188W WO2021023840A1 WO 2021023840 A1 WO2021023840 A1 WO 2021023840A1 EP 2020072188 W EP2020072188 W EP 2020072188W WO 2021023840 A1 WO2021023840 A1 WO 2021023840A1
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- ZIGISKRHBQPXDX-UHFFFAOYSA-N CC1(C)C2OCC2NCC1 Chemical compound CC1(C)C2OCC2NCC1 ZIGISKRHBQPXDX-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/30—Oxygen or sulfur atoms
- C07D233/32—One oxygen atom
- C07D233/34—Ethylene-urea
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/30—Oxygen or sulfur atoms
- C07D233/32—One oxygen atom
- C07D233/38—One oxygen atom with acyl radicals or hetero atoms directly attached to ring nitrogen atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/22—Incorporating nitrogen atoms into the molecule
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3445—Five-membered rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/548—Silicon-containing compounds containing sulfur
Definitions
- the present invention relates to the field of nitrogenous molecules comprising at least one unit making them capable of associating with one another or with a charge via non-covalent bonds, and comprising a function capable of reacting with a polymer comprising unsaturations to form a covalent bond with said polymer.
- the present invention relates to molecules carrying a nitrile oxide function and an N-substituted imidazolidinone function.
- the application also relates to a process for the synthesis of such molecules. State of the prior art
- the compounds described are nitrones carrying an oxazoline or thiazoline function such as, for example ((2- oxazolyl) -phenyl-N-methylnitrone):
- These rings present on the polymer are capable of reacting in turn, with surface functions of the fillers, such as carbon black or silica, with which the polymers are mixed. This reaction leads to the establishment of covalent bonds between the polymer modified by the coupling agent and the charge due to the opening of the oxazoline or thiazoline ring. Indeed, as described in document US Pat. No. 7186845B2, the oxazoline and / or thioazoline rings are likely to open in the presence of a nucleophile which may for example be present at the surface of the filler.
- patent application WO 2012/007684 relates to a compound comprising at least one group Q, and at least one group A linked together by at least and preferably one spacer group Sp in which:
- - Q comprises a dipole containing at least and preferably one nitrogen atom
- - A comprises an associative group comprising at least one nitrogen atom
- - Sp is an atom or a group of atoms forming a bond between Q and
- a subject of the invention is therefore a compound of formula (I) below:
- - A represents an arenediyl ring, optionally substituted by one or more hydrocarbon chains, identical or different, aliphatic, preferably saturated, linear or branched, optionally substituted or interrupted by one or more heteroatoms;
- E represents a divalent hydrocarbon group optionally comprising one or more heteroatoms
- - X denotes a halogen atom, preferably a chlorine atom.
- hydrocarbon chain is understood to mean a chain comprising one or more carbon atoms and one or more hydrogen atoms.
- any interval of values designated by the expression "between a and b" represents the domain of values going from more than a to less than b (that is to say limits a and b excluded) while any designated range of values by the expression “from a to b” signifies the range of values going from a to b (that is to say including the strict limits a and b).
- the invention and its advantages will be easily understood in the light of the description and the examples of embodiments which follow.
- the compounds mentioned in the description can be of fossil origin or biobased. In the latter case, they may be, partially or totally, derived from biomass or obtained from renewable raw materials derived from biomass.
- the compound according to the invention comprises the group A which represents an arenediyl ring, optionally substituted by one or more hydrocarbon chains, identical or different, aliphatic, preferably saturated, linear or branched, optionally substituted or interrupted by one or more heteroatoms.
- arenediyl ring optionally substituted by one or more hydrocarbon chains, identical or different, aliphatic, preferably saturated, linear or branched, optionally substituted or interrupted by one or more heteroatoms.
- a monocyclic or polycyclic aromatic hydrocarbon group derived from an arene in which two hydrogen atoms have been deleted.
- An arenediyl ring is therefore a divalent group.
- the term "monocyclic or polycyclic aromatic hydrocarbon group” means one or more aromatic rings whose backbone consists of carbon atoms. In other words, there are no heteroatoms in the backbone of the cycle.
- the arenediyl ring can be monocyclic, i.e. consisting of a single ring, or polycyclic, i.e. consisting of several condensed aromatic hydrocarbon rings; such condensed rings then have at least two successive carbon atoms in common. These rings can be ortho-condensed or ortho- and peri-condensed.
- the arenediyl ring comprises from 6 to 14 carbon atoms.
- the arenediyl ring can be unsubstituted, partially substituted, or fully substituted.
- An arenediyl ring is partially substituted when one or two or more hydrogen atoms (but not all the atoms) are replaced by one or two or more hydrocarbon chains, aliphatic, preferably saturated, linear or branched, optionally substituted by one or more heteroatoms. Said chains are also called substituents. If all the hydrogen atoms are replaced by said chains, then the arenediyl ring is completely substituted.
- the substituents of the arenediyl ring can be the same or different from each other.
- the arenediyl ring is substituted by one or more hydrocarbon chain (s), identical (s) or different (s), aliphatic, preferably saturated, linear or branched, optionally substituted (s) or interrupted ( s) by one or more heteroatom (s), this or these chain (s) can be inert with respect to the N-substituted imidazolidinone function and to nitrile oxide.
- hydrocarbon chain identical (s) or different (s)
- aliphatic preferably saturated, linear or branched
- optionally substituted (s) or interrupted ( s) by one or more heteroatom (s) this or these chain (s) can be inert with respect to the N-substituted imidazolidinone function and to nitrile oxide.
- hydrocarbon chain (s) inert with respect to the N- substituted imidazolidinone function and to nitrile oxide is understood to mean a hydrocarbon chain which neither reacts nor reacts. with said N-substituted imidazolidinone function or with said nitrile oxide.
- said inert hydrocarbon chain with respect to said N-substituted imidazolidinone function and to said nitrile oxide is preferably an aliphatic hydrocarbon chain which does not exhibit alkenyl or alkynyl functions capable of reacting with said function or said group, c ' that is to say is a saturated, linear or branched aliphatic hydrocarbon chain, optionally substituted or interrupted by one or more heteroatoms, and preferably comprising from 1 to 24 carbon atoms.
- the group A is a C 1 -C 14 arenediyl ring optionally substituted by one or more hydrocarbon chains, identical or different, aliphatic, preferably saturated, linear or branched, optionally substituted or interrupted by one or more heteroatoms. More preferably, the group A is a C ⁇ -C arenediyl ring, optionally substituted by one or more hydrocarbon chains, identical or different, saturated, C 1 -C 24 , linear or branched, optionally substituted or interrupted by one or more nitrogen, sulfur or oxygen heteroatoms.
- the group A is a C ⁇ -C arenediyl ring, optionally substituted by one or more substituents the same or different, selected from the group consisting of alkyl C 1 -C 12, preferably C -C-O, more preferably C 1 -C 4 alkyl, a group OR ', a group - NHR' , a group -SR 'wherein R' is an alkyl group C 1 -C 12, preferably C -C-O, more preferably C 1 -C 4.
- the compound of formula (I) according to the invention is of formula (Ia) below:
- the six groups chosen from R 1 to R 7 other than that designating the group of formula (II), which are identical or different, represent, independently of one another, a hydrogen atom or an aliphatic hydrocarbon chain, preferably saturated, linear or branched, optionally substituted or interrupted by or more heteroatoms.
- the six groups of formula (Ia) chosen from R 1 to R 7 other than that designating the group of formula (II), which are identical or different represent, independently of each other, an atom of hydrogen or an aliphatic, saturated, linear or branched, C 1 -C 24 hydrocarbon chain, optionally substituted or interrupted by or more heteroatoms.
- the six groups of formula (Ia) chosen from R 1 to R 7 other than that designating the group of formula (II), which are identical or different, are chosen from the group formed by a hydrogen atom, an alkyl group C 1 -C 12, preferably C -C-O, more preferably C 1 -C 4 alkyl, a group -OR ', -NHR' group and a group - SR ', wherein R' is an alkyl group C 1 -C 12, preferably C -C-O, more preferably C 1-C4.
- R 1 represents a group of formula (II) as defined above and R 2 to R 7 , identical or different, represent a hydrogen atom or an aliphatic hydrocarbon chain, preferably saturated. , linear or branched, C 1 -C 24 , optionally substituted or interrupted by one or more heteroatoms.
- R 1 represents the group of formula (II) as defined above, and R 2 to R 7 , identical or different, are chosen from the group consisting of an atom hydrogen, alkyl C 1 -C 12, preferably C -C-O, more preferably C 1 -C 4 alkyl, a group -OR ', -NHR' group and a group -SR 'wherein R 'is a C1-C12, preferably CI-C O, more preferably C1-C4.
- R 1 represents a group of formula (II) as defined above and R 2 to R 7 , which are identical, represent a hydrogen atom.
- the group E is a divalent hydrocarbon group which may optionally contain one or more heteroatom (s).
- divalent hydrocarbon group means a spacer group (or a linking group) forming a bridge between the group A and the imidazolidone group, this spacer group being a saturated or unsaturated hydrocarbon chain of preferably saturated, C 1 -C 24 , linear or branched, possibly containing one or more heteroatom (s) such as for example N, O and S.
- Said hydrocarbon chain can optionally be substituted, provided that the substituents do not react with the nitrile oxide and the imidazolidone group.
- the group E is a hydrocarbon chain, linear or branched, preferably saturated, C 1 -C 24 , preferably C 1 -C 10 , more preferably CI -C O optionally interrupted by one or more atoms of nitrogen, sulfur or oxygen.
- the group E is chosen from the group consisting of -R-, -NH-R-, -O- R- and -SR- where R is an alkylene linear or branched C 1 -C 24, preferably C 1 -C 10, more preferably -C -C ⁇ .
- the group E is chosen from the group consisting of -R- and - OR- where R is a linear or branched C 1 -C 24 alkylene. , preferably C 1 -C 10, more preferably -C -C ⁇ .
- the group E is chosen from -CH 2 -, -CH 2 -CH 2 -, -CH2-CH2-CH2-, -CH2- CH2-CH2-CH2-, -O-CH2-, -O-CH2-CH2-, -O--
- the compound of formula (Ia) as defined above with the group E chosen from the group consisting of -R- and -OR- where R is an alkylene, linear or branched, is particularly preferred, C 1 -C 24, preferably C i - C 10, more preferably -C -C O and the group X is a chlorine atom.
- the compound of formula (I) is the compound of formula (Ia) in which: - Ri represents a group of formula (II) in which the group E is chosen from the group consisting of -R- and -OR-, where R is a linear or branched C 1 -C 24 alkylene, preferably in C 1 -C 10, more preferably C -C-O and the group X is a chlorine atom; and
- the compound of formula (I) is the compound of formula (Ia) in which:
- - Ri represents a group of formula (II) in which the group E is chosen from the group consisting of -R- and -OR-, where R is an alkylene, linear or branched, C1-C24, preferably C1- C10, more preferably C -C-O, and the group X is a chlorine atom; and
- R 2 to R 7, identical or different, are selected from the group consisting of hydrogen, C 1 -C 12, preferably C -C O, more preferably C 1 -C 4 alkyl, a group -OR ', -NHR' group and a group -SR 'wherein R' is alkyl C -C 12, preferably C -C-O, more preferably C 1 -C 4.
- the compound of formula (I) is the compound of formula (Ia) in which:
- - Ri represents a group of formula (II) in which the group E is chosen from the group consisting of -R- and -OR- where R is an alkylene, linear or branched, C 1 -C 24 , preferably C 1 -C 10, more preferably C -C-O and the group X is a chlorine atom; and
- a subject of the invention is also a process for the synthesis of the compound of formula (I) according to the invention, comprising the following successive steps:
- polar solvent is understood to mean a solvent having a dielectric constant greater than 2.2.
- nucleofuge group is understood to mean a leaving group which carries its binding doublet.
- nucleophilic group is understood to mean a compound comprising at least one atom carrying a free doublet or a negatively charged atom.
- the process for synthesizing the compound of formula (I) according to the invention comprises in particular the successive steps (b l) and (b2).
- the two steps (b l) and (b2) are separated by a step of isolation and purification of the compound of formula (XI).
- the two steps (b1) and (b2) are carried out according to a one-pot synthesis, that is to say that the steps (b1) and (b2) are “one pot” (one-pot synthesis process in two stages), ie without isolation of the compound of formula (XI) intermediate.
- the process according to the invention comprises a step (b1) of reacting a compound of formula (IX), as mentioned above, carrying a group Y, with a compound of formula (X), as mentioned above. above, carrying a group Z.
- the Y group is chosen from hydroxyl, thiol and primary or secondary amine functions.
- the Z group can be selected from chlorine, bromine, iodine, mesylate group, tosylate group, acetate group and trifluoromethylsulfonate group.
- Said step (b l) of the process according to the invention is carried out in the presence of at least one polar solvent S I, and of at least one base, at a temperature Tl ranging from 70 to 150 ° C.
- the polar solvent S I is a polar solvent miscible in water, preferably a protic solvent.
- Dimethylformamide (DMF), Dimethylsulfoxide (DMSO), 1,3-Dimethyl-2-imidazolidinone (DMI), 1,3-Dimethyl-3, 4,5,6-tetrahydro-2 (1H) -pyrimidinone (DMPU), isopropanol, acetonitrile, ethanol, n-butanol and n-propanol are examples of SI solvents which can be used in the process according to the invention.
- SI solvents which can be used in the process according to the invention.
- the protic solvent is alcoholic.
- the compound of formula (IX) represents from 5 to 40% by weight, preferably from 10 to 30% by weight, relative to the weight of the solvent.
- the base can be chosen from alkaline alcoholates, alkaline carbonates, alkaline earth carbonates, alkali metal hydroxides, alkaline earth hydroxides and mixtures thereof.
- alkaline alcoholates alkaline carbonates, alkaline earth carbonates, alkali metal hydroxides, alkaline earth hydroxides and mixtures thereof.
- One or more catalysts chosen from a catalyst of silver (I) salt type, a phase transfer catalyst of quaternary ammonium type, and mixtures thereof;
- the base is chosen from sodium methanolate, potassium carbonate and sodium hydroxide, more preferably potassium carbonate.
- the molar amount of base is 1.5 to 8 molar equivalents, preferably 2 to 6 molar equivalents, relative to the molar amount of compound of formula (IX).
- step (b l) of the process according to the invention is carried out at a temperature T l ranging from 70 to 150 ° C.
- the temperature T l is a temperature ranging from 70 to 150 ° C.
- step (b1) of the process according to the invention is followed by step (b2) of the addition to the reaction medium containing the compound of formula (XI) of an aqueous solution of hydroxylamine to a temperature T2 ranging from 30 to 70 ° C.
- the addition of the aqueous solution of hydroxylamine is carried out when the conversion of the compound of formula (IX) is at least 70% by weight.
- the temperature T2 varies from 40 to 60 ° C.
- the process according to the invention also comprises a step (c) of recovering, as mentioned above, the oxime compound of formula (XII).
- the oxime compound of formula (XII) is recovered by precipitation with water, optionally followed by washing with water.
- the process according to the invention also comprises a step (d) of oxidizing the oxime compound of formula (XII) with an oxidizing agent to give the compound of formula (I), in particular the preferred compounds, in the presence of at least an organic solvent S2; the amount of oxidizing agent is at least 6 molar equivalents, preferably from 6.5 to 15 molar equivalents, relative to the molar amount of oxime compound of formula (XII). This amount of oxidizing agent can be added all at once or in several times during step (d), preferably added twice during step (d).
- said oxidizing agent is chosen from sodium hypochlorite, N-bromosuccinimide in the presence of a base and N-chlorosuccinimide in the presence of a base, preferably said oxidizing agent is sodium hypochlorite.
- the organic solvent S2 is an organic solvent chosen from chlorinated solvents of ester, ether and alcohol type, preferably chosen from dichloromethane, ethyl acetate, butyl acetate, diethyl ether, isopropanol and ethanol, more preferably chosen from ethyl acetate and butyl acetate.
- the oxime compound of formula (XII) represents from 1 to 30% by weight, preferably from 1 to 20% by weight, relative to the total weight of the assembly comprising said oxime compound of formula (XII), said organic solvent S2 and said oxidizing agent.
- the process according to the invention comprises, after step (d), a step (e) of recovering the compound of formula (I).
- the method according to the invention comprises a step (a2) of manufacturing the compound of formula (X), prior to step (b1), by reacting a compound of formula (XIII) below:
- step (a2) is carried out in the absence or in the presence of at least one solvent S4, preferably a chlorinated solvent, more preferably dichloromethane.
- solvent S4 preferably a chlorinated solvent, more preferably dichloromethane.
- step (a2) is immediately followed by a step (a3) of recovering the compound of formula (X), preferably by purification with toluene, more preferably by crystallization of the compound of formula (X) from toluene.
- the structural analysis as well as the determination of the molar purities of the synthetic molecules are carried out by an NMR analysis.
- the spectra are acquired on an Avance 3400 MHz BRUKER spectrometer equipped with a 5 mm BBFO-zgrad "broadband" probe.
- the quantitative 3 H NMR experiment uses a 30 ° single pulse sequence and a 3 second repetition delay between each of the 64 acquisitions.
- the samples are solubilized in a deuterated solvent, deuterated dimethylsulfoxide (DMSO), unless otherwise indicated.
- DMSO deuterated dimethylsulfoxide
- the deuterated solvent is also used for the lock signal.
- the calibration is carried out on the proton signal of deuterated DMSO at 2.44 ppm compared to a TMS reference at 0 ppm.
- the molar quantifications are carried out from the 1D 3 H quantitative NMR spectrum.
- the mass spectrometry analysis is performed by direct injection by an electrospray ionization mode (ID / ESI).
- ID / ESI electrospray ionization mode
- the analyzes were performed on a Bruker HCT spectrometer (flow rate 600 qL / min, nebulizer gas pressure 10 psi, nebulizer gas flow rate 4 L / min).
- the dynamic property tan (ô) max is measured on a viscoanalyst (Metravib VA4000), according to standard ASTM D 5992-96.
- the response of a sample of vulcanized composition (cylindrical test piece 4 mm thick and 400 mm 2 in section), subjected to a sinusoidal stress in alternating simple shear, at a frequency of 10 Hz, under normal conditions is recorded. temperature (23 ° C) according to ASTM D 1349-99.
- a strain amplitude sweep is carried out from 0.1% to 100% (outward cycle), then from 100% to 0.1% (return cycle).
- the result used is the loss factor tan (ô).
- tan (ô) max For the return cycle, we indicate the maximum value of tan (ô) observed, denoted tan (ô) max.
- Step al is carried out according to protocol 1, step a2 according to protocol 2, step b1 according to protocol 3.
- Steps b2 and c are carried out according to protocol 4.
- Step d is carried out according to protocol 5.
- This compound can be obtained from napthol by a formylation reaction according to the so-called Reimer-Tiemann protocol described in Organic Synthesis, 22, 63-4; 1942 by Russell, Alfred and Lockhart, Luther B. or in Organic Réactions (Hoboken, NJ, United States), 28, 1982 by Wynberg, Hans and Meijer, Egbert W., or according to the procedure described by Casiraghi, Giovanni et al. in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972- 1999), (9), 1862-5, 1980 or even by a Vilsmeier reaction described by Jones, Gurnos and Stanforth, Stephen P. in Organic Reactions (Hoboken, NJ, United States), 49, 1997.
- 2-hydroxy-1-napthaldehyde is commercial. It can for example be obtained from Aldrich (CAS 708-06-5).
- Step b1 preparation of 2- (2- (2-oxoimidazolidin-l -yl) ethoxy) -l - naphthaldehyde
- reaction medium After returning to 40-45 ° C, the reaction medium is poured into a solution of sodium hydroxide (10g; 0.25 mol) in water (700 mL). The mixture is stirred for 10 to 15 minutes. The precipitate is filtered off and washed on the filter with distilled water (3 times 400 mL).
- a gray solid (31.51g; yield 9%) is obtained.
- the molar purity is greater than 85% (NMR ⁇ ).
- protocol 3 The product isolated at the end of protocol 3 is used in the following protocol 4.
- the molar purity estimated by ⁇ NMR is greater than 95%.
- Step d preparation of the oxide of (2- (2- (3-chloro-2-oxoimidazolidin- 1 -yl) ethoxy) -1 - naphthonitrile
- a second portion of aqueous NaOCl solution (74.44 g / L; 98 ml; 4.0 eq.) Is added over 5 minutes.
- the 2- (2- (3-chloro-2-oxoimidazolidin-l -yl) ethoxy] - 1 - naphtonitrile oxide obtained previously (at the end of protocol 5) is used. In the following, it is called compound. AT.
- the NMR analysis showed a molar grafting rate of 0.29% with a grafting yield of 96%.
- compositions C1, C2 and C3 Three rubber compositions are prepared, referred to hereinafter as compositions C1, C2 and C3, and are defined as follows.
- Composition C1 is a “conventional” rubber composition used as a tire tread, including in particular an ungrafted synthetic polyisoprene, silica and a polysulphide silane coupling agent.
- Composition C2 is identical to composition C 1 except that it additionally comprises compound B which is grafted onto synthetic polyisoprene. It is a composition comprising the comparative compound B.
- Composition C3 is a composition identical to composition C1 except that it additionally comprises compound A which is grafted onto synthetic polyisoprene. It is a composition comprising the compound A according to the invention.
- Compositions C2 and C3 comprise the same number of moles of grafted compounds A or B, namely 0.2 mole%.
- TESPT (marketed by Evonik under the reference “S 169”;
- Fes compositions are prepared as follows: one introduced into an internal mixer “Polylab” of 85 cm3, filled to 70% and of which the initial temperature of the tank is approximately 1 10 ° C, the diene elastomer.
- compound A or compound B is introduced at the same time as the diene elastomer.
- a thermomechanical work of a minute and a half is carried out at a temperature of 120 ° C.
- one or more reinforcing fillers are introduced, the agent for coupling the filler with the diene elastomer and then, after one to two minutes of mixing, the various other ingredients with the exception of the system. vulcanization.
- Thermomechanical work is then carried out (non-productive phase) in one step (total mixing time equal to approximately 5 minutes), until a maximum “fall” temperature of 160 ° C. is reached.
- the mixture thus obtained is recovered, it is cooled and then the vulcanization system (sulfur and sulfenamide type accelerator) is added on an external mixer (homo-finisher) at 25 ° C, while mixing everything (productive phase) for approximately 5 to 6 minutes.
- vulcanization system sulfur and sulfenamide type accelerator
- compositions thus obtained are then calendered in the form of plates (thickness of 2 to 3 mm) or of thin rubber sheets for the measurement of their physical or mechanical properties. 2) Characterization tests - Results
- composition C2 comprising the comparative compound, which comprises an elastomer modified with a compound comprising an unsubstituted imidazolidinone function, exhibits a decrease in hysteresis (tan (ô) max at 23 ° C), relative to composition C1 which does not include a modified elastomer.
- composition C3 comprising the compound according to the invention, which comprises an elastomer modified with a compound comprising an N-substituted imidazolidinone function, exhibits a significant decrease in hysteresis compared with comparative composition C 1 as well as a significant decrease in hysteresis compared to comparative composition C2, which already exhibited good hysteretic properties compared to composition C1.
- the elastomer modified by the compound according to the invention therefore makes it possible to improve the hysteresis of the compositions containing it, and therefore to improve the rolling resistance performance of the compositions containing it.
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN202080054826.XA CN114174268A (zh) | 2019-08-07 | 2020-08-06 | 具有氧化腈官能团的分子 |
EP20750675.9A EP4010321A1 (fr) | 2019-08-07 | 2020-08-06 | Molecule portant une fonction oxyde de nitrile |
JP2022507385A JP2022543617A (ja) | 2019-08-07 | 2020-08-06 | ニトリルオキシド官能基を有する分子 |
CA3145233A CA3145233A1 (fr) | 2019-08-07 | 2020-08-06 | Molecule portant une fonction oxyde de nitrile |
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FR1909055A FR3099764B1 (fr) | 2019-08-07 | 2019-08-07 | Molécule portant une fonction oxyde de nitrile |
FRFR1909055 | 2019-08-07 |
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JP (1) | JP2022543617A (fr) |
CN (1) | CN114174268A (fr) |
CA (1) | CA3145233A1 (fr) |
FR (1) | FR3099764B1 (fr) |
WO (1) | WO2021023840A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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FR3037953A1 (fr) * | 2015-06-24 | 2016-12-30 | Michelin & Cie | Procede de synthese de molecules portant une fonction oxyde de nitrile |
WO2019007883A1 (fr) * | 2017-07-04 | 2019-01-10 | Compagnie Generale Des Etablissements Michelin | Composition à base d'au moins un composé polyaromatique particulier |
WO2019007881A1 (fr) * | 2017-07-04 | 2019-01-10 | Compagnie Generale Des Etablissements Michelin | Molécule polyaromatique portant une fonction oxyde de nitrile |
Family Cites Families (3)
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US7186845B2 (en) | 2004-10-20 | 2007-03-06 | Bridgestone Corporation | Polymer-filler coupling additives |
JP2008208163A (ja) | 2007-02-23 | 2008-09-11 | Bridgestone Corp | 変性重合体、それを用いたゴム組成物及びタイヤ |
FR2962729B1 (fr) | 2010-07-13 | 2012-09-21 | Arkema France | Molecules porteuses de groupes associatifs |
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2019
- 2019-08-07 FR FR1909055A patent/FR3099764B1/fr not_active Expired - Fee Related
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2020
- 2020-08-06 WO PCT/EP2020/072188 patent/WO2021023840A1/fr unknown
- 2020-08-06 CA CA3145233A patent/CA3145233A1/fr active Pending
- 2020-08-06 JP JP2022507385A patent/JP2022543617A/ja active Pending
- 2020-08-06 CN CN202080054826.XA patent/CN114174268A/zh active Pending
- 2020-08-06 EP EP20750675.9A patent/EP4010321A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3037953A1 (fr) * | 2015-06-24 | 2016-12-30 | Michelin & Cie | Procede de synthese de molecules portant une fonction oxyde de nitrile |
WO2019007883A1 (fr) * | 2017-07-04 | 2019-01-10 | Compagnie Generale Des Etablissements Michelin | Composition à base d'au moins un composé polyaromatique particulier |
WO2019007881A1 (fr) * | 2017-07-04 | 2019-01-10 | Compagnie Generale Des Etablissements Michelin | Molécule polyaromatique portant une fonction oxyde de nitrile |
Also Published As
Publication number | Publication date |
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JP2022543617A (ja) | 2022-10-13 |
CN114174268A (zh) | 2022-03-11 |
CA3145233A1 (fr) | 2021-02-11 |
EP4010321A1 (fr) | 2022-06-15 |
FR3099764A1 (fr) | 2021-02-12 |
FR3099764B1 (fr) | 2021-07-09 |
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